SMTA Europe Webinar: What Is a Good Solder Joint, and How Can Solder Joints Be Tested?
What is a good solder joint? And how can they be tested not only for purposes of process characterisation, optimisation, monitoring, and control but also for ensuring their long-term reliability? Pete Starkey details a webinar organised by the Europe Chapter of SMTA that was presented by Bob Willis, an expert in soldering, assembly technologies, and failure analysis.
Reducing Flux Splatter in Sensors and Camera Modules
With the increased use of electronics in new technology areas, flux formulations are being developed to address the new and existing requirements. For sensors and camera modules used for Advanced Driver Assistance System (ADAS) and internet of things (IoT) applications, there is a demand for no-clean flux formulations in lead-free solder paste, which can reduce flux splattering during reflow.
How to Benefit From Robotic Soldering Processes
Webinars are in vogue! But in Pete Starkey's experience, the master of the technical webinar with many years’ experience of delivering first-rate events is Bob Willis—electronics assembly specialist, soldering expert, and provider of training and consultancy in electronics manufacture.
Here, Pete recaps Bob’s presentation on the upcoming robotic soldering experience.
90% Solder Dross Recovery: Eliminate Waste, Save Money
The impact of 90% solder dross recovery can have a substantial impact on reducing waste and increasing cost savings. Nolan Johnson recently spoke with Jay Hardin, MS2® product manager at P. Kay Metal, about the process and benefits of efficient solder dross recovery, as well as product roadmaps, the soldering machine market, and raw materials supply chain for solder alloy manufacturing. As Jay says, “For many companies, the savings are in the thousands or millions” of dollars.
Just Ask Paul: Automotive and Lead-Free Solders
We asked you to send in your questions for Happy Holden, Joe Fjelstad, Eric Camden, John Mitchell, and Greg Smith in our “Just Ask” series. Now, MacDermid Alpha Electronics Solutions’ Paul Salerno gets a chance to answer a question. Paul Salerno is a global portfolio manager for SMT applications focused on the automotive and consumer market segments. He holds a bachelor’s degree in materials engineering as well as an MBA in finance and marketing from Rutgers University.
Real Time with… SMTAI 2020: Full List of Interviews With Industry Leaders
The virtual SMTA International Electronics Exhibition took place on September 28–30, and I-Connect007 is here to provide you with comprehensive coverage of the event. We’ve assembled the full list of show-related interviews from before, during, and after SMTAI 2020 with the industry’s top executives, engineers, and managers—all without leaving your office. Visit Real Time with… SMTAI 2020 to view our video series, photo gallery, and more.
Real Time with… SMTAI 2020: Technical Conference Review
SMTAI 2020, which was converted to a virtual event, took place from September 28–30. I attend every year, but since there was no keynote in the virtual format, I went straight to the technical conference. This event covered a broad range of topics related to everything in assembly. Over 90 technical presentations are available, but this report covers just some of the sessions I attended.
Real Time with...SMTAI 2020: MacDermid Alpha’s Single-Step Metalization Paper
Nolan Johnson talks with MacDermid Alpha Electronics Solutions about a new process for filling through-holes with copper in a single step. Carmichael Gugliotti, the primary author and an applications specialist, and Richard Bellemare, director of electrolytic metalization, address why this new process matters and what’s in Gugliotti’s technical paper presentation for SMTAI.
Real Time with...SMTAI 2020: STI Electronics Brings Training to the Show
Nolan Johnson talks training with David Raby, president and CEO of STI Electronics. David walks Nolan through STI’s role as a provider of training and EMS services, and the two talk about the strategic need for training and skilled staff in manufacturing. Dave outlines what visitors can find in the company’s virtual booth, and the two conclude by discussing hot topics in training.
Real Time with...SMTAI 2020: MacDermid Alpha’s Flash Etching Electroplating Paper
I-Connect007’s Nolan Johnson catches up with Sean Fleuriel, a chemist for MacDermid Alpha Electronics Solutions, and Richard Bellemare, director of electrolytic metalization, to discuss the SMTAI technical paper presented by Fleuriel, titled, “Pit Resistant Acid Copper Electroplating Process for Flash Etching.” Fleuriel and Bellemare highlight the challenges, processes, and conclusions from the paper, as well as which PCB fabricators are most likely to benefit from this new process.
Just Ask Eric: Selecting the Right Lead-Free Solder for Your Application
First, we asked you to send in your questions for Happy Holden and Joe Fjelstad in our “Just Ask” series. Now, it’s Eric Camden’s turn! A regular SMT007 columnist, Eric is a lead investigator at Foresite Inc., an analytical testing and consulting laboratory. As a reliability expert, Eric has worked with many large OEMs and contract manufacturing companies to optimize their manufacturing processes and assist with the identification of electronic hardware failures utilizing various analytical techniques. He also specializes in optimizing PCBA processes and identifying hardware failures through analysis. We hope you enjoy “Just Ask Eric.”
Organizational and Team Management in Times of Change
Ross Berntson, president and COO of Indium Corporation, shares his perspective, thoughts, and lessons learned on managing his global organization as Indium Corporation responds to health issues, market demand shifts, and organizational change. This interview was conducted in May 2020.
Just Ask Joe: The Occam Process
First, we asked you to send in your questions for Happy Holden. Now, it’s Joe Fjelstad’s turn! Inventor, columnist, instructor, and founder of Verdant Electronics, Joe has been involved with rigid PCBs and flexible circuits for decades, and he’s ready to share some of his knowledge with our readers. We hope you enjoy “Just Ask Joe.”
Ross Berntson: Indium Corporation’s Pledge for Safe Resumption Post-COVID
On May 20, Nolan Johnson spoke with Ross Berntson, Indium Corporation’s president and COO, about the company’s response to the COVID-19 outbreak. Berntson details the company's work with a consortium of manufacturing businesses in central New York state, developing a manufacturing pledge to keep people safe and keep factories running. Indium Corporation has been one of the frontrunners in formalizing such procedures and in sharing lessons learned among all the participating companies.
High-reliability, Low-temperature Solder Alloys
Increased digitalization and greater connectivity have been driving miniaturization and more complex and integrated designs in electronics. As the real estate on PCBs shrinks, so does the size of packages. However, the drive for finding design solutions for increased performance has continued to expand. The solder joint is an essential part of assemblies for electronic devices as it provides electrical, thermal, and mechanical connections. Therefore, soldering materials have been evolving to enable such a technological revolution.
This Month in SMT007 Magazine: Indium Metal Forecast—Supply Chain Strong, Demand Continues to Grow
Indium is a critical metal for the indium-tin oxide (ITO) market and other coating applications. Donna Vareha Walsh—director of sales and global supply chain and trade compliance at Indium Corporation—describes the plentiful global supply of indium and its recycling loop, examines indium’s history of price volatility and the market reactions from the recent Fanya Metal Exchange auction, and provides an overview of indium supply and demand drivers, as well as the impact of recycling efforts.
Process Ionic Contamination Test (PICT) Standard Roundtable With Industry Experts
With standards committees set to release the first of four new test standards, industry experts discussed the process ionic contamination test (PICT) standard, which was recently approved by the IEC for publication. Roundtable participants included Teresa Rowe, senior director of assembly and standards technology at IPC, Graham Naisbitt, chairman and CEO of Gen3, Jason Keeping, corporate process development at Celestica, and Doug Pauls, principal materials and process engineer at Collins Aerospace.
SMTA Europe’s Electronics in Harsh Environments Conference and Exhibition: A Taste of Things to Come
SMTA Europe’s Electronics in Harsh Environments Conference has become a must-attend annual event; unfortunately, it also became another casualty of the COVID-19 lockdown. Scheduled to take place in Amsterdam, the Netherlands, from April 21–23, 2020, it has now been postponed until December 1–3. Pete Starkey reports on a preview seminar presented by SMTA Europe.
IPC Education Foundation: STEM and Online Learning Resources
Nolan Johnson recently caught up with Charlene Gunter du Plessis, senior director of the IPC Education Foundation, about how the COVID-19 outbreak is affecting the IPCEF, including how they are continuing to connect with IPC Student Chapter members and seek industry support. Charlene also discussed the increased usage of IPCEF’s online educational modules and shares STEM resources.
Trends From the Show: Solder and Software
In my role as a media representative, my perspective on IPC APEX EXPO may be a bit different from that of many attendees. Since the I-Connect007 team had the opportunity to talk to many attendees and exhibitors and listen to their stories over the course of the week, our view can be particularly wide. When I reflected on all the conversations, pieces from all throughout the week coalesced and provided a different understanding of and takeaway from the show.
Oren Manor: Mentor Leading Way for Industry 4.0
In this video interview from the show, Guest Editor Steve Williams talks with Oren Manor—director of business development at Mentor, a Siemens Business—about Industry 4.0, robotics, and other applications. They also addressed integration of Mentor's CAD/CAM solutions with Siemens' mechanical offerings.
2020 EIPC Winter Conference, Day 1
Pete Starkey recaps how the 2020 EIPC Winter Conference, held in mid-February, attracted around 90 delegates from a dozen European countries—as well as a few from North America—to an outstanding learning and networking experience for members of the PCB community. The theme of this year's event was: “The Needs for Next-Generation Electronic Devices and Changes in Fabrication Solutions for PCBs, PCBAs, Materials, and Technologies.”
MacDermid Alpha Electronics: Stronger With Kester Acquisition
In this video interview from the show, Technical Editor Pete Starkey and Tim Williams, VP of assembly solutions, discuss the structure and strategy of MacDermid Alpha Electronics Solutions, and how the company benefits from the Kester acquisition.
IPC APEX EXPO 2020 Attendees Speak: Mike Montesi
"One of the biggest challenges for me selling is educating customers that they can generate oxygen and nitrogen on their own for up to 90% savings versus getting trucked in deliveries," said Mike Montesi of On Site Gas Systems. "It’s all about education because 98–99% of customers are used to the high cost of delivered gases, where we can separate it on-site with their own equipment, and the payback is typically under a year."
The Success of IPC’s STEM Student Outreach Program
The IPC Education Foundation (IPCEF) hosted its STEM Student Outreach Event on February 6 at IPC APEX EXPO in San Diego. Nine local high schools attended bringing 193 students and 30 educators from Mission Hills High School, Morse High School, North County Trade Tech High School, Saint Marcos High School, E3 Civic High School, Point Loma High School, Otay Ranch High School, Mount Miguel High School, Otay Ranch High School—Girls in STEM. Twice as many students were able to participate this year, and each participating high school received a $1,000 grant and soldering station to enhance STEM-related learning at their school.
IPC APEX EXPO 2020 Attendees Speak: Katie Carl
"We have a wide range of kids. All of them have some sort of interest in technology, which is why they wanted to come in general," said Katie Carl, a high school teacher escorting a group of kids at IPC APEX EXPO. "It’s neat when they start seeing how these technologies are created because a lot of them have seen robotics or have done a tiny bit of soldering with little circuits, but when they can see how those things are built and created in the industry, it makes it more applicable for them."
IPC Government Relations: Focus on Supply Chain Resiliency
During IPC APEX EXPO, Editor Nolan Johnson sat down with Chris Mitchell, VP of global government affairs, to discuss IPC’s latest initiative with industry intelligence programs. As Chris explains, some of these efforts are focused on improving the DoD’s supply chain. This includes moving the DoD from leaded to lead-free components to help avoid millions of dollars in rework. He also discusses the team’s drive to unite with partners around the world and create a truly global organization.
Solder in PCBA: Can’t Live Without It... or Can We?
For most of its historical use in electronics, the solder alloy of choice was tin-lead, either an Sn60/Pb40 alloy or the Sn63/ Pb37 eutectic version of the tin-lead alloy. These two alloys were the workhorses of the industry. They were both well understood in terms of their processing and reliability—that is, until the advent of lead-free, a well-meaning but ill-conceived and poorly executed conversion, forced on the industry by the European Union in 2006.
IPC APEX EXPO 2020 Attendees Speak: Dr. Martin Anselm
"The biggest challenge I’ve encountered a number of different times is the migration to much larger packaging," said Dr. Martin Anselm, director of CEMA Lab. "Devices are getting much larger, and with the thousands of I/O of solder joints, and they are not just single-die, multi-chip modules in different forms or 2.5D technologies.
Manncorp: An SMT One-Stop Shop
In this interview, Joe Fjelstad speaks with Ed Stone, sales manager of Manncorp. Ed details the operations at Manncorp’s two locations in San Diego and Philadelphia, including production of LEDs for Manncorp’s daughter companies. As Ed says, describing the steady traffic at his booth, “We have something that everyone at the show needs.”
True or False: CFX Edition
Since the release of IPC-2591—Connected Factory Exchange (CFX), Version 1.0—there has been a lot of buzz regarding CFX within the industry from all segments. Still, with all of the buzz, there are also some misconceptions floating around the industry regarding CFX. David Bergman takes some of those statements, using feedback from Subcommittee members, and plays a little game of “True or False: CFX Edition.”
Flexibility Is Key to Direct Imaging Success
Brendan F. Hogan, managing director of MivaTek, explains that while each industry has its own set of requirements and difficulties, the lines between semiconductor and PCB markets are blurring, demanding more flexibility from equipment suppliers.
Foundations of the Future: Get More Engaged in 2020
Since the inception of the IPC Education Foundation in January 2019, the mission remains to create connections between electronics manufacturers and supply chain companies, academia and the emerging workforce. In this debut column, Charlene Gunter du Plessis describes plans for engaging in 2020, including scholarships and more, and the IPC APEX EXPO 2020 STEM Student Outreach event.
What You Need to Know About the Digital Factory
Barry Matties spoke with Oren Manor, director of business development for Mentor, A Siemens Business, during productronica about the many benefits of a digital factory and what’s keeping companies from becoming one. Oren also gives examples of big data analytics along with the move to a lot size of one.
Accurate, Uniform Data With KIC’s Smart Reflow Analyzer
Editor Nolan Johnson and Miles discuss KIC’s newest system, the SRA, a smart reflow analyzer that can provide the customer with information about their machines: Is the airflow adequate? Is there proper heat transfer to the product? Is this data uniform from week to week and month to month? Miles explains how the SRA uses the latest in laser technology to track conveyor speed and heat transfer more accurately than ever.
BTU Discusses its Next-generation Flux Management System
At productronica 2019, Nolan Johnson spoke with Peter Franklin, managing director of BTU Europe, about BTU’s next-generation solder reflow flux management system—Aqua Scrub. A winner of the show’s Global Technology Award for Soldering, Peter breaks down the specifics of what makes Aqua Scrub such an intriguing technology.
Practical Verification of Void Reduction Method for BTC Using Exposed Via-in-pad
The method explored in this article regards the use of exposed via-in-pad. A dedicated test vehicle was designed for two types of QFN components. The main variables accounted for were the component size, number of exposed vias in the thermal pad, via pitch, via size, and solder paste coverage. The responses sought in this experiment include a thermal pad void level and solder wicking down the via barrel with resulting solder protrusion on the opposite side of the PCB.
The Future of the World Is Truly in the Hands of Our Youth
At I-Connect007, we are proud to once again sponsor the STEM Outreach Program at the upcoming IPC APEX EXPO 2020. Another way we support our youth is by sharing the stories of young people who are doing amazing things. Dylan Nguyen is a great student, musician, and creative thinker. Recently, he shared with me the details of his school science fair project, “Kite: Powering the Future,” which solved a problem that he faced. Dylan is a leader with a bright future, and the world is lucky to have kids like him.
Indium Discusses New Materials and Plans for 2020
Editor Nolan Johnson sits down with Nash and Mackie to discuss Indium’s focus on creating innovative products for the 5G, automotive, semiconductor, and high-reliability segments. Mackie offers a preview of Indium’s plans for 2020 and beyond, including lead-free drop-in sintering materials that can be dispensed and printed more quickly than ever before.
Mirtec's Approach to Raw Data: The 'Sushi Principle'
Editor Pete Starkey and Brian D’Amico discuss the company’s new Alpha system, designed for the automotive market. D’Amico explains why Mirtec is focusing on providing customers with raw data instead of “cooked” data, what he terms the “sushi principle.” He says that the system is able to pick up tiny defects that would otherwise be filtered away if the system were not using raw data. D’Amico also discusses their use of artificial intelligence, and some of the possible benefits from using AI going forward.
André Bodegom on European Challenges, Automation, and Automotive
Editor Pete Starkey speaks with André Bodegom, managing director for Adeon Technologies in the Netherlands, about changes he has seen over the years in major industry sectors, challenges in the European market, and other areas of growth.
Koh Young Europe Celebrates 16,000 Installed Systems
During productronica 2019, the I-Connect007 Editorial Team met with some of the industry's top executives, managers, and engineers. In this video interview, Editor Nolan Johnson and Harald Eppinger, managing director at Koh Young Europe, discuss the company’s milestone of 16,000 installed systems, the Zenith Alpha, and market trends in AOI systems.
Explaining the QSFP-DD Data Center Interconnect Standard
According to Cisco’s report, most IP traffic either originates or terminates in data centers. Yet as massive as the flows between centers are becoming, the data managed within those same facilities is going even higher. All of this activity means that “hyperscale” is the word of the future. Roughly one-quarter of all servers installed in 2016 went to hyperscale facilities, but that number will grow to almost one-half by next year.
Koh Young Opens New North American Facility
Koh Young America recently opened its new corporate headquarters for the Americas outside of Atlanta, Georgia. I attended the open house and spoke with Joel Scutchfield, director of sales for the Americas, about the state-of-the-art facility and the benefits of relocating to the East Coast.
SMTAI 2019: KIC's New, Smart Factory Products
MB Allen, manager of applications and sales for KIC, and Karl Pfluke, regional sales manager, update Nolan Johnson on their new product announcement from earlier this year. They also address the company's ongoing work on smart factory products.
SMTAI 2019: Chris Bastecki on Low-temperature Solder Challenges and Products
Chris Bastecki, director of global PCB assembly at Indium Corporation, discussed challenges of low-temperature solder and the company's new product, Durafuse LT, which provides novel properties and reliability.
Real Time with... SMTAI 2019 Video Interviews
The SMTA International Conference and Exhibition 2019, which took place September 22–26, 2019, at the Donald E. Stephens Convention Center in Rosemont, Illinois, concluded successfully. For those of you who were not able to make it to the show, catch our video interviews with the movers and shakers of the electronics industry. We've updated our video presentation for a better experience for our users, so check it out!
Real Time with… SMTAI 2019 Slideshow
The SMTA International 2019 Conference and Exhibition closed last week on a high note. For those who were not able to attend the event, held at Stephens Convention Center in Rosemont, Illinois, the slideshow contains a selection of photos from the exhibition show floor as well as the conference.
SMTAI 2019: Lenora Clark Discusses Company Changes and Her New Role
Lenora Clark, director of autonomous driving and safety technology at MacDermid Alpha Electronics Solutions (and co-organizer for the upcoming SMTA Additive Electronics Conference), and Nolan Johnson discuss her new role, recent company reorganization, and the synergies customers are seeing.
IPC Panel on Bottom-terminated Components
During the IPC Summer Meetings in Raleigh, North Carolina, I sat down with Tom Rovere, a materials and process engineer at Lockheed Martin in Owego, New York. We explored a panel discussion on bottom-terminated components (BTCs) that Tom participated in as well as the challenges and issues related to BTCs and the important role that designers play in that process.
eSMART Factory Conference 2019, Day 2
Happy Holden continues his report on the the eSMART Factory Conference Dearborn, Michigan, with highlights from the event's second day, which includes a keynote from Brian Toleno titled "Augmented Reality: Next-Generation Computing for Front-Line Workers."
eSMART Factory Conference 2019, Day 1
The recent eSMART Factory Conference in June in Dearborn, Michigan, was the second annual conference on the smart factory. SMTA described it as "A technical conference with a focus on electronics manufacturing from software systems/processes to augmented reality and smart inspection." In this article, Happy Holden gives us the highlights of the conference.
IPC High-reliability Forum and Microvia Summit Review, Part II
The Microvia Summit on May 16 was a special feature of the 2019 event in Baltimore, since microvia challenges and reliability issues have become of great concern to the PCB manufacturing industry. It provided updates on the work of members of the IPC V-TSL-MVIA Weak Interface Microvia Failures Technology Solutions Subcommittee and opportunities to learn about latest developments in methods to reveal and explain the presence of latent defects, identify causes and cures, and be able to consistently and confidently supply reliable products.
IPC High-reliability Forum and Microvia Summit Review, Part I
The IPC High-Reliability Forum and Microvia Summit covered a broad range of topics related to reliability and provided interactive opportunities to share expert knowledge and experience in determining and understanding the causes of failure and selecting the best design rules, materials, processes, and test methods to maximise product reliability.
Practical Implementation of Assembly Processes for Low Melting Point Solder Pastes (Part 2)
In the last three to five years, there has been a resurgence of interest in the use of low melting point alloys for SMT applications. Typically, the compositions are around the eutectic bismuth-tin alloy, perhaps with additions of other elements to increase the robustness of certain alloy properties. Now, there are several new products on the market and numerous ongoing reliability projects in industry consortia.
Crowded Congressional Calendar Affects Industry Priorities
More than five months remain in 2019, but U.S. congressional leaders are already running out of time as they face a long list of must-pass bills before year’s end. Although some of these bills do not affect the electronics industry, some of them do, and the overall agenda does affect the opportunities and risks we face.
Practical Implementation of Assembly Processes for Low Melting Point Solder Pastes (Part 1)
Since 2006 and the implementation of the RoHS directive, the interest in bismuth-tin solder alloys—whose melting point around 140°C is very desirable because it allows for the use of lower temperature laminate materials and reduces thermal stress on sensitive components—has only increased as the industry has searched for Pb-free alternatives to the chosen standard, SAC305, which melts at considerably higher temperatures than the incumbent tin-lead alloys.
Surface Treatment Enabling Low-Temperature Soldering to Aluminum
An increasingly popular method to meet the need for lower cost circuitry is the use of aluminum on polyester (Al-PET) substrates. This material is gaining popularity and has found wide use in RFID tags, low-cost LED lighting, and other single-layer circuits. However, both aluminum and PET have their own constraints and require special processing to make finished circuits.
Failures and Reliability in Soldering
The definition of failure is "the lack of success in doing or achieving something, especially in relation to a particular activity." If the activity is concerning a soldering process, such a failure can have a downstream impact far beyond the actual solder joint. In this regard, it is first necessary to understand what constitutes a good solder joint because appearance is too often deemed a success.
The Effectiveness of 75% IPA/25% DI Extraction Solution on No-clean Flux Residues
The continuous challenge in the electronics industry is to keep up with the demand for smaller, faster, and more reliable electronics. When it comes to cleaning, this rapid development of manufacturing and reliability challenges is juxtaposed with the slow pace of new test method development.
IPC’s PCB Tech Trends Study Highlights Issues Impacting Fabricators
The 2018 survey results indicated the need for speed and low loss as critical functions of the materials chosen. This is the digital age, and with the Internet of Things, virtual and augmented reality, vehicle-to-vehicle communication, etc., the need for low-loss and ultra-low-loss materials continues to grow as a percentage of circuit boards fabricated.
Laserssel Brings High-speed Soldering to New Application Areas
In this interview with I-Connect007, Denis Barbini, general manager of Laserssel, talks about the company's new laser-selective reflow solution aimed at reducing a typical reflow oven’s 10-minute cycle down to just 10 seconds as well as the overall benefits manufacturers could see from streamlining this process.
Co-owner Philip Kazmierowicz on New Role as KIC President
KIC is one of the leaders in reflow and thermal process control and smart oven technologies. On March 25, 2019, KIC announced that Philip Kazmierowicz, company co-owner, would take on the position of president. Nolan Johnson took that opportunity to sit down with Kazmierowicz in his Oregon-based R&D lab to discuss KIC's history and his plans for the future of the company.
Impact of Stencil Foil Type on Solder Paste Transfer Efficiency for Laser-cut SMT Stencils (Part 2)
In the first part of this two-part article, Greg Smith talks about a study wherein a test vehicle was created to show transfer efficiency over a wide array of area ratios. Part 2 discusses the results of the experiment, including discussions of the different SEM results featuring the paste transfer efficiencies of each material, to better understand how the aperture wall surface smoothness compares to SMT stencil performance.
Catching up With Darrel Yarbrough of YES
Yarbrough Electronic Sales (YES) is one of the fastest growing contract manufacturers in the Southwest. As people get to know them better, they are becoming the go-to company in their area. In this interview, long-time industry veteran Darrel Yarbrough, owner of YES, provides a background about the company, its capabilities, and his outlook for the industry.
Top 10 Most-Read SMT007 Articles for March
Starting this month, we will take a look back at the most popular SMT007 news, articles, interviews, and columns over the past 30 days. For the month of March, these are the top 10 most-read SMT007 articles. Check them out.
Jennie Hwang: Get Ready for Disruptive Technologies
At IPC APEX EXPO 2019, Dr. Jennie S. Hwang, a columnist, author, and all-around an expert in PCB assembly, discusses some of the changes she has seen since joining the industry, and disruptive technologies that technologists we are going to have to face in the near future. Are you ready for the future?
CPCA Show and productronica China 2019 Review
It was a busy week in China for the electronics industry. With multiple trade shows and conferences going on simultaneously in Shanghai, including the CPCA Show 2019, productronica China, SEMICON China, electronica China, and FPD China, it appears from the crowds that the market is strong in the region.
SMTA Europe Electronics in Harsh Environments Conference 2019: A Preview
As a prelude to this year's Electronics in Harsh Environments conference, which will be held on April 2–4, 2019 in Amsterdam, Netherlands, SMTA Europe chairman Keith Bryant, supported by technical specialist Bob Willis, showcased the challenges and key issues faced by design and process engineers worldwide, in a webinar entitled "Harsh Environment Failures—Causes & Cures."
RTW IPC APEX EXPO 2019: Standards Updates—IPC-7093 & IPC-7530
Ray Prasad, IPC Hall of Famer and chairman for multiple committees, gives Guest Editor Joe Fjelstad an update on two IPC standards: IPC-7093 on bottom-termination components (BTCs), and IPC-7530 progress with reflow characterization. Prasad talks about the many challenges in dealing with BTCs, including circuit/board design, manufacturing, voiding, connections (or lack thereof), warpage, and reliability. He also addresses no-clean flux and its challenges.
RTW IPC APEX EXPO 2019: Reducing Voiding in Reflow Soldering
Chris Nash, product manager for PCB assembly solder paste at Indium Corporation, speaks with Kelly Dack and highlights Indium’s take on three important aspects of reliability: thermal, mechanical, and electrical. He talks about challenges of all three aspects, which include solder voiding, and how Indium helps the industry address these issues through its solder paste formulations.
Two Full CFX Demo Lines at IPC APEX EXPO 2019
During IPC APEX EXPO, Editor Dan Feinberg spoke with David Bergman, IPC VP of standards and technology, about CFX, IPC’s Connected Factory Exchange software for machine-to-machine communication. With more than companies now supporting CFX, IPC set up two full lines for demonstration at the show.
RTW IPC APEX EXPO 2019: BTU Discusses New Solder Flux Reclamation Solutions
Bob Bouchard, corporate marketing manager at BTU International Inc., updates I-Connect007 Managing Editor Nolan Johnson on new solder flux reclamation solutions and details the new aqueous scrub methodologies, their increased ROI and efficiencies, and reduced maintenance.
Executive Forum on Advancing Automotive Electronics
Presented by IPC Hall of Fame Council, the Executive Form on Advancing Automotive Electronics, which aims to provide information on the complete supply chain for automotive electronics, featured 10 presentations on all facets of automotive electronics from materials, fabrication, and reliability testing to market information and future needs.
RTW IPC APEX EXPO 2019: MacDermid Alpha Highlights Solutions to Combat Voids in Solder
Joe Fjelstad speaks with Paul Salerno, global portfolio manager at MacDermid Alpha Electronics Solutions, about their latest product and process solutions to combat voids in solder including modifications in pastes, preforms, and vacuum assist soldering.
TUM Hyperloop Team Learns PCB Design on Way to Setting World Speed Record
At AltiumLive Munich, I met with Tobias Bobrzik, a Technical University of Munich student and member of the TUM Hyperloop team. In 2018, the TUM Hyperloop team’s prototype pod set the world speed record of 290 miles per hour, which lead to their meeting with Musk. Tobias designed some of the PCBs used in that vehicle, so I asked him to tell us more about this experience, and what he hopes to do after graduation.
Super Dry Storage Options to Manage Intermetallic Growth
Guest Editor Kelly Dack speaks with Richard Heimsch, director of Super Dry, about some of the differences between storing components and other materials for assembly floor storage versus long-term storage, and how Super Dry can help combat intermetallic growth.
RTW IPC APEX EXPO 2019: KIC Speaks on Data, Voiding and Traceability
Bjorn Dahle, president of KIC, talks with I-Connect007 Technical Editor Pete Starkey about how the industry has shifted its focus from the machine to data; the issue on voiding and how manufacturers can address this process challenge; and traceability.
RTW IPC APEX EXPO: OK International Soldering Robot Integrates CV Technology
Bryan Gass, vice president at OK International, talks with I-Connect007 Managing Editor Nolan Johnson about their new soldering robot that integrates their Connection Validation (CV) technology. Launched at the IPC APEX EXPO last year, the CV technology provided the company a springboard to have a good start into 2018, and to achieve growth throughout the year.
RTW IPC APEX EXPO 2019: MacDermid Alpha Discusses New Materials to Improve Void Issues
Traian Cucu, Ph.D., G.A.T.E Group Leader at MacDermid Alpha Electronics Solutions, discusses with I-Connect007 Managing Editor Nolan Johnson some of the methods to reduce, or eliminate, the solder voiding issue, especially with the continuing trend towards lower-pitch, high-density components.
STEM: The Future of Our Industry
Facing a growing shortage of talented labor with which to fill the employment positions in America, IPC is working to help solve this problem. Colette Buscemi, senior director of IPC’s education programs, is encouraging IPC members to better engage pre-college and post-secondary college students at the local level. Barry Matties spoke with Colette about the educational programs IPC has put in place to invest in future generations, including the STEM program at this year’s IPC APEX EXPO.
Who’s the Best of the Best in Hand Soldering?
IPC APEX EXPO 2019 will include the new IPC World Championship Hand Soldering and Rework Competition on the expo floor on January 29 and 30. Twelve competitors from Britain, China, France, Germany, India, Indonesia, Japan, South Korea, and Thailand will compete for the crown and the title of the first-ever IPC World Hand Soldering and Rework Champion.
Top 10 Most-Read SMT007 Articles of 2018
Every year, we like to take a look back at the most popular SMT007 news, articles, interviews, and columns. These are the top 10 most-read SMT007 articles from the past year. Check them out.
Defense Speak Interpreted: PERM—Pb-free Electronics Risk Management
In this column, we explore PERM—the Pb-free Electronics Risk Management Consortium. No, the group members do not all have curly hair! The name was chosen around 2008 by a group of engineers from aerospace, defense, and harsh environment (ADHE) organizations.
Dr. Traian Cucu Discusses Low-Temperature and Lead-Free Soldering
Dr. Traian Cucu, group leader of the Global Applications and Technologies Expert Group (GATE)—R&D—within Alpha Assembly Solutions, speaks with I-Connect007 Technical Editor Happy Holden about low-temperature and lead-free soldering applications, and the many critical advantages that can achieved by moving to a low-temperature process. They talk about the industry's transition to lead-free, the first, second and third generation of adoption of low-temperature alloys.
Tempo Automation's Open House Raises the Curtain in San Francisco
Based in San Francisco, Tempo Automation specializes in rapid PCB assembly and on low volume production for a wide range of board complexities. It recently held an open house at its brand-new facility in the South of Market (SoMa) district—which is normally restricted under customer non-disclosure agreements as well as International Traffic in Arms Regulations (ITAR) regulations—to customers, vendors, local designers, and government officials.
RTW SMTAI: Inventec Discusses the 'Green Way'
At SMTA International 2018, Dan Walker, North American sales manager at Inventec Performance Chemicals USA, provides Editor Nolan Johnson an overview and update on Inventec’s environment-friendly cleaning, soldering and coatings products. He also discusses how they are addressing the latest manufacturing issues, including solder voiding.
Investigation on the Assembly Process for m03015 and a Brief Look at m0201 Components
Components continue to shrink in the SMT world, and the next evolution of passive components includes m03015 (009005) and m0201 (008004). The m03015 and the m0201 components will see primary adoption in products that require further miniaturization, which would be SiPs. These modules would then be assembled into products through attachment, another assembly, or via other interconnect methods. This article explores the development of an assembly process (SMT only) for the m03015 component.
I-Connect007 Survey Sees Bright Prospects for Low-Temperature Soldering
There has been an increasing amount of discussion on low-temperature soldering, and solder pastes. And why not? There are several advantages of using low temperature solders—from a technical standpoint and economic perspectives. A recent survey by I-Connect007 saw majority, or 67%, of the respondents saying they will consider using low-temperature solders in their assembly process.
Alpha Assembly Solutions on Training, Education, and Low-Temperature Soldering
In this interview, Jason Fullerton of Alpha Assembly Solutions discusses the benefits and challenges of low-temperature soldering. He also highlights the biggest concerns he’s currently seeing in the industry, including young engineers lacking hands-on manufacturing experience and training, voiding and head-in-pillow issues, and low-temperature soldering demands.
RTW SMTAI: Harold Sneath Highlights Alpha’s Reclaims Business
Reclamation can be a profit center, not a cost of doing business. At the recent SMTA International 2018 conference and exhibition, Harold Sneath, Eastern Regional Reclaim Manager at Alpha Assembly Solutions, lays out the reclamation services available through Alpha.
Tips to Improve Soldering Tip Life and Reduce Cost
Whether in production, or repair and rework, the cost of soldering iron tips can be easily overlooked, but with today’s requirement for higher temperatures in lead-free solder applications, the consumption of tips has dramatically increased. This fact, combined with changes in tip design to meet the higher thermal load requirements, has also resulted in escalating tip costs, making tip care a high priority.
Indium on Voiding and Auto Electronics Test Standard
In this interview with I-Connect007, Indium Corporation Technical Manager Jonas Sjoberg discusses voiding and other key challenges in soldering, as well as an automotive electronics testing standard based out of South Korea that is seeing increased utilization all over Asia. He also talks about the increasing trend in manufacturers moving to Type 5 and Type 6 solder powders, and how this is causing its own set of challenges in printing.
RTW NEPCON South China: SEHO Discusses New Production Facility in South Korea
Andreas Reinhardt, R&D director at SEHO Systems GmbH, speaks about their new production facility in South Korea, which aims to address the growing lead times in their supply chain. He also talks about how emerging technologies such as more and more sensors and connections, big data, and cloud computing are impacting the electronics assembly industry.
RTW NEPCON South China: Rehm Sees Growing Demand for Vacuum Soldering
Ralf Wagenfuehr, plant manager of Rehm Thermal Systems (Dongguan) Ltd, speaks with I-Connect007’s Edy Yu about the developments in the company’s convection reflow soldering system, which features a vacuum module, aimed at addressing the increasing demand for vacuum soldering. He also discusses their software developments, as well as how they are helping their customers toward their Industry 4.0 journey.
Towards a Data-Driven Cleaning Environment
Tom Forsythe, executive vice president at KYZEN, discusses the most critical challenges of the cleaning process, a new approach to testing the cleanliness of PCB assemblies, and how KYZEN is helping customers develop a more data-driven approach to cleaning.
Strengthening the Joint with a Revolutionary New Low-Temp Solder Paste
I-Connect007 Editor Patty Goldman interviews one of Alpha Assembly Solution’s solder process experts, Traian Cucu, who is based at Alpha’s R&D center in New Jersey. Traian, along with Morgana Ribas, have played key roles in the development of Alpha’s innovation new low-temperature solder paste process. He also talks about how this solves many of the defects issues that one would see on a SAC assembly process.
Practicing Best Practices
Recently, we looked into electronics assembly best practices that help optimize your manufacturing processes. To provide you more insights on this, here's an interview with two assembly experts: Jason Keeping of EMS firm Celestica, and Bob Willis, a renowned EMS consultant and trainer.
Strategies for Choosing Solder Paste for Successful Electronics Assembly
One common question from solder customers is, "How do I test and evaluate new solder pastes?" Although that seems like it should be a straightforward question with an easy answer, this could not be further from the truth. This article tells more about this, and how to best select solder pastes for your product.
IMPACT Washington D.C., 2018 with Juki Automation’s Bill Astle
I-Connect007's Patty Goldman caught up with Juki Automation’s Bill Astle during a luncheon on the last day of IMPACT Washington D.C., 2018. As a first-time attendee, Bill came away feeling like he made the right connections with key members of Congress, and he looks forward to returning to the event in the future.
Evaluating the Impact of Powder Size and Stencils on Solder Paste Transfer Efficiency
Building upon an earlier study that focused on solder paste powder size, room-temperature aging and PCB pad and aperture designs, this study continues to investigate powder mesh size, but also examines stencil surface treatments and stencil foil tension.
Tackling Reliability Challenges in Low-Temperature Soldering
William Yu, senior technical services manager for Alpha Assembly Solutions, recently shared with I-Connect007 the challenges when it comes to the reliability of low-temperature solder pastes, and soldering strategies to overcome these issues.
Nearing Retirement, Juki's Bob Black Reflects on a Long Career
After more than 40 years in the electronics manufacturing industry, Juki's Bob Black is nearing retirement. Bob sat down with Barry Matties at the recent SMT Hybrid Packaging show in Nuremberg to reflect on his career and talk about the importance of strategic partnerships, even if that means playing nice with your competitors.
ASM Assembly Solutions on CFX
ASM Assembly Solutions was one of the 30+ companies participating in IPC's CFX (Connected Factory Exchange) showcase at the recent SMT Hybrid Packaging show in Nuremberg, Germany. In this interview, ASM's Thomas Marktscheffel shared his perspective on CFX and its current challenges, and dispelled the notion that CFX might be a cookie-cutter approach to the smart factory.
Reflow Perspectives to Flex Circuit Assemblies
At the recent NEPCON China 2018 event in Shanghai, I spoke with Ralf Wagenfuehr, plant manager at Rehm Thermal Systems, to gain insight into flex circuit assembly, and the challenges of reflow soldering. He also speaks about the need for industry forums focused on soldering flex printed circuits.
Conversation with Miraco… Strategies for Successful Flex Circuit Assembly
Jason Michaud, a 19-year veteran at Miraco Inc., is the company’s new vice president of sales. In an interview with SMT007 Magazine, Jason speaks about the factors driving the increasing utilization of flexible printed circuits, the challenges in flex circuit assembly, and the best practices to address those issues.
Aegis on CFX and Hermes Efforts
The Connected Factory Exchange (CFX) specification is truly revolutionizing the PCB industry. Michael Ford, from Aegis Software, met with I-Connect007's Barry Matties for an interview during the SMT Hybrid Packaging show in Nuremberg, Germany, to discuss the impact of this collaborative effort, and how it differs from the Hermes Standard.
Tackling the Challenges in Flex Assembly
Apart from the design and manufacturing of flex printed circuits, a critical challenge that needs attention is assembly. Their flexible nature requires specific strategies for paste printing, chip mounting, soldering—whether reflow, wave, or hand—and rework/repair processes. Which is why the June 2018 issue of SMT007 Magazine looks into the many challenges in flex circuit assembly and highlight some of the strategies, techniques and best practices to help assemblers deal with flex circuit issues.
High School Team's Robotics Entry on Spotlight at Wisconsin Expo & Tech Forum
In May, I took the opportunity to drive around Lake Michigan and visit the SMTA Milwaukee Chapter’s Wisconsin Expo & Tech Forum. Held at the Crowne Plaza Milwaukee Airport Hotel, this was a well-organized and attended table-top expo and technical forum, with over 60 exhibitors, and a high school team with their FIRST Robotics entry.
Dave Bergman on IPC and CFX
The recent SMT Hybrid Packaging show in Nuremberg, Germany, marked the second opportunity for IPC to showcase its new Connected Factory Exchange (CFX) initiative. In this interview, David Bergman, VP for international relations at IPC, tells us more on the overall reception of CFX and the benefits users are seeing thus far. He also provides an update on what’s next for the open source standard.
West Penn SMTA: New Leadership, Same Commitment
SMTA's new chapter president, Jason Emes, a quality engineer with Pennatronics Corporation enthusiastically discussed with I-Connect007's Patty Goldman the latest goings-on with this Keystone State chapter. He also spoke about his plans and initiatives for the SMTA West Penn Chapter.
Elements to Consider on BGA Assembly Process Capability
As a cutting-edge technology applied in SMT assembly, BGA packages have quickly become a significant selection to conform to fine pitch and ultrafine pitch technology, achieving high-density interconnection with a reliable assembly technology provided, which leads to the increasingly more applications of this type of package.
RTW NEPCON China: Armada Discusses Impact of Auto Electrification on PCB Assembly
At the recent NEPCON China 2018, Klaus Schubert, managing director of Armada, speaks about the increasing electrification in cars and how this is impacting the PCB assembly processes, and in particular, the solder paste printing.
RTW NEPCON China: Christian Koenen Stencil Technologies Ensure First Pass Yields
At the recent NEPCON China 2018 event in Shanghai, Michael Zahn, development manager for Christian Koenen GmbH, explains how stencil technologies can improve the solder paste printing process and ensure first pass yields.
EDADOC: A Driving Force in China's Automotive Electronics Design
EDADOC is one of the biggest providers of PCB design and manufacturing services in China, with a long history in automotive electronics design and manufacturing. China Editor Edy Yu recently conducted an email interview with EDADOC R&D Technical Research Manager William Zhou and Brand Planning Specialist Wen Ling, who collaborated on their answers. We discussed the challenges related to designing and fabricating automotive PCBs, the opportunities in this segment, and the trends they see in the market for autonomous and electric vehicles.
RTW NEPCON CHINA: OK International Highlights Need for Smarter Systems
At the recent NEPCON China 2018 tradeshow in Shanghai, Steven Fang, director of sales for Asia at OK International, speaks about the challenges their customers face when it comes to hiring skilled operators, which warrants the need for smarter systems and tools.
RTW NEPCON CHINA: Rehm Discusses Reflow Strategies to Reduce Voiding
At the recent NEPCON China 2018 event in Shanghai, Ralf Wagenfuehr, plant manager at Rehm Thermal Systems in China, speaks with I-Connect007’s Stephen Las Marias about their latest advancements in reflow oven technology, as well as on strategies to reduce voiding.
RTW IPC APEX EXPO: Heraeus Discusses Developments at New Lab
Jim Wertin, technical sales manager at Heraeus Electronics, shares news about the company's latest product offerings, as well as its newly established application laboratory, which helps customers and potential customers resolve production issues and improve the quality of their products.
CFX: The Next Step Toward the Future of Factories
For the past two to three years, almost every exhibitor in almost every trade show focused on the electronics manufacturing industry has an "Industry 4.0 Compatible" sign in their booth. As of today, the best question to ask is, "Compatible with what?" There has really been no standard yet developed toward this goal, and Industry 4.0 has been just a buzz word.
What's the Scoop? APEX CFX Showcase
The IPC Connected Factory Exchange (CFX) demo at the recent IPC APEX EXPO 2018 trade show in San Diego, California, is a great example of industry collaboration. The CFX Showcase at APEX had 245,000 CFX website page views; 701,200 CFX messages transmitted; and 664.5 million bytes of data exchanged; and the whole thing was pulled together in a matter of weeks. Here's what the participants in the program have got to say.
Solving Reliability and Thermal Management Challenges in Automotive Electronics
Paul Salerno, global portfolio manager for SMT assembly solutions at Alpha Assembly Solutions, discusses the growing automotive electronics industry, its impact on the soldering materials business, and how Alpha helps customers address the new challenges and requirements in the automotive market.
RTW IPC APEX EXPO: Nordson SELECT's Acquisition Update
Carlos E. Bouras, general manager of Nordson SELECT, discusses the acquisition of ACE Production Technologies and InterSelect GmbH one year later, along with the synergies between the two companies, and how they have strengthened Nordson SELECT's capabilities.
Investigating Analytical Tools for Testing Cleanliness with Foresite's Eric Camden
At the recent West Penn SMTA Expo, Eric Camden, lead investigator at Foresite Inc., speaks with I-Connect007's Patty Goldman about fluxes and analytical tools for testing cleanliness, and how these impact the reliability of the assembled boards.
Stencil Printing Techniques for Challenging Heterogeneous Assembly Applications
A new generation of near microscopic size SMT chip capacitors has appeared in the market, known as either 0201 or 008004. This article investigates and characterizes the stencil printing process for compatibility with M0201 capacitor assembly. Effects of circuit board quality, stencil thickness, and stencil nano-coating are evaluated against solder paste volume transfer efficiency and raw-volume print distribution.
Interview with Linda Woody: Dieter Bergman IPC Fellowship Award Recipient
The Dieter Bergman IPC Fellowship Award is given to individuals who have fostered a collaborative spirit, made significant contributions to standards development, and have consistently demonstrated a commitment to global standardization efforts and the electronics industry. This year, Linda Woody is one of the two recipients of the award. Here's what she has to say.
Interview with Dave Hillman: IPC’s 2018 Raymond E. Pritchard Hall of Fame Award Winner
A self-described "dinosaur" of the industry, Dave Hillman has been a steady force in all things solder-related at Rockwell Collins for 30 years. And just to keep things fresh, he has spent years mentoring both college-age and younger children. In this interview, I-Connect007’s Patty Goldman gives Hillman a chance to tell his story.
Electronics Manufacturing (R)evolution
2018 is going to be the year of Industry 4.0, where we will see how enabling technologies including sensors, big data, analytics, and the Internet of Things (IoT), will transform the electronics manufacturing landscape.
RTW IPC APEX EXPO: Indium Discusses Fighting Solder Voids
Voiding has increasingly become one of the most critical challenges in the soldering process. In this interview, Christopher Nash, product manager for the PCB assembly solder paste business of Indium, speaks about how the company is helping customers address the voiding challenge.
The Vital Role of Solder Paste Printing in New Product Introduction
The high degree of automation within the SMT methodology offers a variety of advantages, from automatic correction of errors, to simpler and faster assembly, better mechanical performance, increased production rates and reduced labor costs. In this first in a series of articles exploring SMT assembly, we highlight the specific attributes, and the vital importance, of the solder paste printing process for your NPI.
Designing Electronics for Harsh Conditions
We expect a lot from our products, especially our electronic products. Think about it: cellphones, wearables, medical devices—for some reason we think they should still work after being immersed in liquid, left outdoors in freezing temperatures or dropped on concrete from a standing position.
Tips & Tricks: Machine Assist Time
Assist time is the human intervention required to keep a machine producing during normal operation. It does not include errors, maintenance, setup, and prototyping. There are many reasons for a machine to require assistance. PCB loading, stencil wiping, paste addition, feeder replenishment, and PCBA unloading—some require labor, some can be automated, but all will require some amount of time to complete.
Nano Dimension’s 3D Printing: Prototypes at the Push of a Button?
SICK AG is a global manufacturer of sensors and sensor solutions for industrial applications, with headquarters located in Waldkirch, Germany. After a demo of Nano Dimension’s new 3D printing machine at productronica, Barry Matties met with SICK’s Danny Wernet to discuss its pros and cons and get his overall impression of the technology. Are 3D prototypes really as simple as feeding in a Gerber file and pushing a button?
Indium's Karthik Vijay Talks Engineering for Automotive Applications
Barry Matties met with Karthik Vijay, Indium Corporation's technical manager for Europe, at last year's productronica, where everything from stencils and laser cutting to flux technology and jetting were discussed. If you want to know about where material technology currently stands in the automotive landscape, you’ll want to read on.
Creating a Healthy Work Environment
In an interview with SMT007 Magazine, Wolfgang Koehler, CEO of the North America branch of ULT, discusses how their business has been over the past year, their challenges and opportunities, and how they are helping their customers. Another topic of discussion is investing in new equipment—the key parameters to consider, and what’s driving customers to buy their systems.
Tips & Tricks: Assembly Panelization
Thoughtful PCB array and panel design can reduce line stoppage, improve changeover time and reduce material scrap. Fiducial location and design are good aids to prevent mistakes, but may still result in line stoppage. If you have fiducial recognition issues, making the shape of the mask opening different than the fiducial feature may help the vision system discern the target feature easier.
PCB Pad Repair Techniques
There are a variety of reasons behind pads getting "lifted" completely or partially from the laminate of a PCB. Per the just revised IPC-A-610 Revision G, a defect for all three classes occurs when the land is lifted up one or more pad thicknesses. Lifted pads can occur when a device has been improperly removed or there is a manufacturing defect in the board construction. In any case, as with any repair, the ultimate decision on the ability to repair the pad lies with the customer.
Focus on the New
It seems like it wasn't too long ago when I was writing about the optimism of the electronics manufacturing and assembly industry going into 2017. Now, here we are again at the beginning of the new year, looking at new trends, disruptive technologies, and emerging markets for 2018. I am also proud to announce our new branding as well as our fresh, new look.
Top 10 Most-Read SMT007 Columns of 2017
Another year is over in the SMT industry. 2017 saw a myriad of hot topics, including Industry 4.0, the millennials’ entry into the manufacturing space, and alternative solder materials, to name a few. Without further ado, here are the Top 10 columns from SMT007 over the past year.
Step Stencil Technologies and Their Effect on the SMT Printing Process
Components such as quad flat no lead (QFNs), land grid array (LGAs), micro ball grid array (micro BGAs), 0201s and even 01005s continue to push manufacturers to use thinner stencil foils to apply the correct volume of paste onto their boards, but larger components such as edge connectors still require larger paste volumes.
Solder Printing Process Inputs Impacting Distribution of Paste Volume
The volume of solder deposition, like any process, has variations that may be characterized by a statistical distribution curve, whether normal or non-normal. As complexity, density, cost and reliability requirements increase, there may be value in narrowing the distribution curve. It is common sense that less variation serves the interest of quality of the more complex and dense circuit boards.
Improving Solder Paste Printing
Of the three elements involved in the solder paste printing process—stencil, solder paste, and printer—the stencil is considered one of the major factors affecting the transfer efficiency, accuracy, and consistency, of solder pastes into the pads, especially with the continuing trend towards miniaturization.
What Matters Most is Communication
While there may be new techniques and strategies, technologies, equipment, tools, and materials to employ and utilize, there is always one thing that will ensure the manufacturing/ assembly success of your product: communication. Communication between the designer and the assembler will help improve the manufacturability and assembly of the final product—even before the board design gets fabricated.
DFx on High-Density Assemblies
Use of new technologies poses a number of challenges for solder paste selection, PCB design, assembly process, and reliability. The type of end product will have different challenges, concerns, and requirements in all aspects. The assembly line for many of these end products will look very similar, but specification limits would be different.
Via-in-Pad Plated over Design Considerations to Mitigate Solder Separation Failure
Under certain conditions, the use of VIPPO with other pad structures within a BGA footprint can result in a unique failure mode in which the BGA solder joint separates between the bulk solder and the intermetallic compound either at the package pad or PCB pad interface, depending on whichever is the weaker interface. It can be either a complete or partial separation and hence, may or may not be detected at ICT/functional test.
Video from productronica 2017: Rehm Discusses Trends Driving Product Development
Michael Hanke, chief customer officer of Rehm Thermal Systems, speaks with I-Connect007 Managing Editor Andy Shaughnessy about the importance of communicating with their customers when it comes to new process and technology trends. He also talks about Industry 4.0 and big data, and process monitoring and transparency.
Solder Preforms 101: Ask the Expert
At the recent SMTA International 2017 event, Jerry Sidone, product manager for the engineered materials at Alpha Assembly Solutions, speaks with I-Connect007 Managing Editor Patty Goldman about the voiding challenge, especially with bottom termination components, and how solder technologies from Alpha are helping PCB assemblers address this issue.
Dealing with Vias-in-Pad
Screaming Circuits, a division of EMS firm Milwaukee Electronics, specializes in short-run, one-off, and prototype PCB assembly. In an interview with SMT Magazine, Duane Benson, CTO of Screaming Circuits, talks about the challenges when dealing with microvias and vias-in-pad from an assembly standpoint, and how in-circuit test issues, such as access to test points, can be addressed.
Creating the Perfect Solder Joint
From a visual standpoint, a good solder joint should be smooth, bright, shiny, clean, and have a nice concave solder fillet. But how do you ensure that inside those joints, good intermetallic bonds are formed? Solder joints play several different roles, and they represent several different opportunities to be a problem, a partial improvement, or a complete improvement. Since all solder joints aren’t created equal, the first step is to understand what is expected or required of that joint.
Soldering Tip: Key to Good Solder Joints
In an interview with SMT Magazine, Enrique Moreno, technical support engineer at JBC Soldering, discusses the key parameters to consider during hand soldering to achieve the perfect solder joint. He also talks about the the increasing move towards automation and robotics soldering.
Achieving the Perfect Solder Joint: The Many Perspectives on Soldering
For this month's issue of SMT Magazine, we brought several experts together to discuss the many aspects of soldering, from solder paste, to automation, inspection, and the challenges in achieving the perfect solder joint. We also talked about the strategies and parameters to consider to ensure reliable, good solder joints.
Choosing Solder Processes: Getting It Right
In an interview with SMT Magazine, Ralf Wagenfuehr, plant manager at Rehm Thermal Systems, shares his insights on the topic of achieving the perfect solder joint, from the perspective of a reflow oven supplier. He also talks about the latest developments in reflow ovens aimed at addressing voiding in solder joints.
Update on IPC’s Validation Services and Hints of What’s to Come
SMTA International is the perfect time to get updates on IPC happenings. One that I’m always curious about is the Validation Services programs. At the busy show, I managed to find a quiet spot so Randy Cherry, IPC’s director of Validation Services, could fill me in on the latest.
BTC and SMT Rework Challenges
In the assembly of bottom terminated components (BTC), the formation of voids has become a serious problem in many applications. In the SMT process, the reliability of solder joints becomes more of a concern, as less and less solder is allowed for each joint. The presence of voids can deteriorate the joint strength and eventually lead to joint failure.
RTW SMTAI: AIM's Dr. Mehran Maalekian Speaks on New Alloys for Harsh Environments
Dr. Mehran Maalekian, R&D Manager at AIM Solder, speaks with I-Connect007 Managing Editor Andy Shaughnessy about new alloys that are targeted for high-temperature and demanding applications, particularly in harsh environments, where standard lead-free alloy such as SAC will not perform as well.
RTW SMTAI: Alpha Discusses Solder Dross Reclamation
At the recent SMTA International 2017 exhibition in Rosemont, Illinois, Mitch Holtzer, director of Americas Reclaim Business of Alpha Assembly Solutions, talks with Managing Editor Andy Shaughnessy about the solder dross reclamation process, and discusses his new role in leading Alpha’s reclamation business.
Rework and Reliability: Less is More!
Circuit boards are not always perfect after reflow or wave soldering. Scrapping boards with one or two defects is expensive, so rework happens. A good concept for rework is less is more, especially less flux. Use as little rework flux as possible, as in the old Brylcreem ads, "Just a little dab'll do ya."
A Look Into PCBA Rework and Repair
Despite the many technology advances in the SMT process, there will always be a need for rework and repair of PCB assemblies. Most especially as the industry trend continues towards finer pitch and spacing, smaller and smaller components, and increasing high-reliability requirements from customers.
Whose Fault is That Bad Board?
Years ago, I held a position in an EMS company where projects were analysed before manufacturing. We found that even some of the best and most innovative circuits could not be manufactured. Why? Because the PCB designer, an electronic engineer, was not acquainted with the fabrication process. He had no idea about technological requirements necessary for electronic production. I know another designer who learned, finally, the importance of the thermal relief pad for heat restriction during reflow for a good soldering. His response? “Oh, was that what they were for? And to think I worked so much to remove them!”
RTW NEPCON South China: JBC Brings Digital Transformation to Hand Soldering Process
Enrique Moreno, technical support engineer at JBC Soldering SL, and I-Connect007 Managing Editor Stephen Las Marias discuss the latest developments in the hand soldering process, including robotics and automation. Moreno also talks about the opportunities in China, and why their Industry 4.0-enabled solutions are suitable for this market.
Improving the Rework Process
An optimized SMT assembly process typically provides a yield of nearly 100%. Technology advancements—from the solder paste printing process, SPI, and parts placement, to reflow and wave soldering and AOI—have pushed the efficiency and accuracy of these steps in the SMT process such that a board assembly should be perfect at the end of the line. Still, EMS providers continually face the need to rework and repair PCBAs even after dialing in the perfect set-up.
NEPCON South China 2017 Opens Today
NEPCON South China 2017, being held in conjunction with the Shenzhen Circuit Sourcing 2017 and Automotive World China, opens its doors today at the Shenzhen Convention and Exhibition Center to showcase nearly 600 companies catering to the electronics manufacturing industry. This year’s event, the largest ever in the show's 30-year history, features 45,000 square meters of exhibition space.
On the Smart Move: Industry 4.0 in Electronics Production
The industrial world is in motion, as we face a revolution in terms of processes, organizational structures, hardware and software in our companies. Many critics complain that terms like Industry 4.0 and smart factory are rather arbitrary and lack concrete meaning. That is correct. What is also true, however, is that technical progress always starts out with a vision, which is then put into concrete terms as time moves on.
Soldering Fumes in Electronics Manufacturing: Damaging Effects and Solutions for Removal
No matter which soldering process you analyze, all of them have one aspect in common: They produce airborne pollutants, which may have a negative impact on employees, plants and products as well. This article discusses the damaging effects of soldering fumes, and solutions for their removal.
Process Step Elimination: Driven by Cost and Efficiency, Enabled by Process and Materials Innovation
Electronics manufacturing has evolved from the early days of hand soldering and wave soldering to the more modern SMT process. But while most modern electronics are produced using the SMT process, there are still some mixed technology applications that need both the SMT process and the wave soldering process. This article looks into the pin-in-paste (PiP) process, which enables the soldering of through-hole components during SMT processing, and eliminates the need for the wave process.
Pillarhouse International's Allan Jiang Discusses Selective Soldering Developments
At the recent NEPCON China event in Shanghai, Allan Jiang, sales manager at Pillarhouse International, discusses with I-Connect007 Managing Editor Stephen Las Marias some of the challenges in selective soldering, and technology developments to address these issues.
Using Lead-Free BGAs in a Tin/Lead Soldering Process
Several electronic market segments, such as those electronics used in harsh environments or that have life/system critical functionality, remain exempt from lead-free material restrictions such as the RoHS legislation. While these market segments can use solder containing lead, it is increasingly difficult to procure advanced components in non-ROHS compliant configurations. This article discusses several aspects of having lead-free BGA components in a tin/lead soldering process.
Using Paste Flux for Rework
When using a hot air or IR rework system where the reflow cycle is mimicking the original SMT reflow profile, and when using flux for re-attachment, paste flux otherwise known as gel or tacky flux is the correct type of flux to use. Due to its high viscosity and tack properties, paste flux prevents components from being moved during hot-air reflow while being able to remain active for the complete time-temperature period.
Today’s Mil/Aero Enemies: Counterfeits, Obsolescence and Failure
The need for high-reliability electronics, components and assemblies that can perform in harsh operating conditions involving extreme temperatures, vibration, and moisture continue to challenge electronics assembly providers catering to the military and aerospace markets. These are on top of current manufacturing issues such as the miniaturization of products, shrinking component sizes, higher density board assemblies, and the obsolescence of electronic components.
The Importance of Conformal Coating, Now and in the Future
At the SMTA Michigan Expo and Tech Forum, held in Grand Rapids on May 11, Technical Editor Happy Holden spent a few minutes with AIM Solder’s Technical Marketing Manager Tim O’Neill to discuss O’Neill’s presentation on the topic of conformal coating over no-clean fluxes.
Assembly Training and Education
Even if your PCB assembly process is optimized, there is always room for improvement. And no matter how successful your company has been in the past, you just can’t rest on your laurels. It is always in your best interest to strive towards a better operations model. We've created a survey to help us gauge the importance of training and education in your workforce, and the benefits that you get in ensuring that your operators and engineers have the most current knowledge and skill sets.
Shenzhen Axxon Discusses Acquisition and Dispensing Market Trends
Ivan Li, general manager at Shenzhen Axxon Automation Co. Ltd (China), discusses their recent acquisition by Mycronic, as well as the latest developments in the dispensing market. Also discussed is the China market, and how the company is staying ahead of the increasing competition in the dispensing industry.
RTW NEPCON CHINA: Interflux to Revolutionize Solder Industry
At the recent NEPCON China event in Shanghai, Daniel Werkhoven, CEO of Belgium-based soldering chemistry provider Interflux Electronics N.V., talks with I-Connect007 Managing Editor Stephen Las Marias about how their new bismuth-based solder alloy will help improve the soldering process.
Tape and Reel Solder Preforms: A Success Story for the UD00 X86 SECO Board
SECO's latest product innovation, UDOO X86, is a real computer with an integrated Arduino 101 compatible board that is capable of running games and videos in 4K. But while the success of the UDOO X86 is impressive, so is SECO's ability to develop this game-changing product with low-cost technology for mass appeal and affordability.
Voiding Control at High-Power Die-Attach Preform Soldering
Voiding in the solder joint is a concern for high-reliability and high-performance devices. This paper discusses a study on voiding behavior of large pad high-power devices simulated with Cu coupon to Cu coupon sandwiches. A flux-coated preform was studied in this assembly, with variation in solder alloy type, quantity of solid flux coated on solder preform, Cu coupon pre-oxidation extent, reflow temperature, and pressure exerted onto the sandwich during reflow.
The Benefits of Applying Flux Directly to a Micro BGA
Technology trends continue to drive miniaturization in electronic components. As a result, product designers are often forced into specifying smaller and smaller devices on their bill of materials. Sometimes, miniature devices offer OEMs cost savings, which is seen as a good thing; other times, there is simply no choice.
Keeping an Eye on the Next Generation
Why should a company in our industry dedicate hours to providing professional development to a group of temporary student interns? Why should they open their doors to kids, some of whom haven’t even entered high school? For Indium, the short answer is, it makes them better. Read on to find out why.
The Challenge of Filling PCB Assembly Positions
U.S. manufacturers are having a difficult time filling open positions. They cannot find workers with the necessary skills to fill the openings. If we look specifically at the PCB assembly industry, the rhetoric is similar. There are more openings than people to fill them. The discussions reveal that lower wages, lack of skills, and sometimes the reported low unemployment rate in the United States is part of the problem.