SMT :: Cleaning

Latest Articles

Cleaning Trends: The Challenges of Miniaturization and Proximity

At the recent SMTA International conference, I-Connect007 Managing Editor Patty Goldman caught up with Ram Wissel, VP of Global Technology at KYZEN, to talk about the latest cleaning challenges, and bringing Industry 4.0 into the world of cleaning in PCB assembly.

Eight Factors a CEM Should Know About its Suppliers

Selecting a contract electronics manufacturer (CEM) that fits well with your outsourcing strategy can be a difficult and long process. But, by taking the time to research and investigate potential shortlisted partners, you are much more likely to reap the benefits further down the line.

Institute of Circuit Technology Hayling Island Seminar 2017

This year’s event had a well-chosen and varied programme featuring presentations on process chemistry and R&D consortia, a discussion of controversial standards proposals and a review of the experiences of commissioning new technology in a start-up factory.

Drying Boards after Rework Cleaning—To Do or Not to Do?

In cases where water soluble fluxes are being used in the rework process, in cases where the components need to have flux residues washed off, or in cases where the board needs to be cleaned with water for subsequent conformal coating touchup, proper drying and perhaps even bake out procedures need to be performed.

RTW NEPCON South China: KYZEN on Optimizing the Cleaning Process

At the NEPCON South China event happening this week in Shenzhen, China, Thomas Forsythe, executive vice president at KYZEN Corp., discusses the current cleaning challenges in the PCB assembly industry, and how manufacturers can optimize their cleaning process.

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.

Cleaning that Matters

James Yeoh, executive director of Zestron Precision Cleaning Sdn Bhd, discusses the challenges in the cleaning industry, and strategies that can help manufacturers address those issues. He also covers the need for continuous education when it comes to cleaning, and how automation can ensure the stability of cleaning systems.

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.

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.

RTW NEPCON CHINA: Teknek Discusses Contact Cleaning Technology Trends

Stephen Mitchell, managing director of Teknek, a contact cleaning solutions provider, discusses the latest trends in contact cleaning technology. He provides his outlook on China’s electronics manufacturing industry and intelligent manufacturing, and talks about how Teknek's contact cleaning systems are helping customers address their defects and productivity issues.


Vapor Degreasing Chemistries to Remove Difficult Lead-Free and No-Clean Fluxes from PCBs

In line with increasing regulations on electronics manufacturing, many changes have been made to the electronics world, and thus the circuit board manufacturing process. Lead-free, no-clean and halide-free flux formulations have introduced new cleaning obstacles, especially on ever-shrinking component sizes. To maintain high cleanliness standards for modern circuitry, new sophisticated cleaning chemistries are required.

Zestron Technical Workshop Tackles Next Generation of Cleaning

Zestron recently held a technical workshop in Alabang, Muntinlupa City in the Philippines to help users address their cleaning challenges amid advancements in semiconductor device packaging.

What a Tangled (Soldering) Web We Weave!

Soldering remains one of the most critical processes in the PCB assembly industry. Which is why it is of the utmost importance that the soldering process should be perfect. But soldering is just too complex a process, and further complicating the situation, the requirements and technologies vary between our industry’s market segments. There are just a lot of factors to consider before you put your boards into the reflow and let them run.

Miniature Components on PCBs Requires Flexible Cleaning Methods

Smaller, more densely populated circuit boards make the issue of managing faults, quality and product longevity highly challenging. This is why so many companies consider their PCB cleaning as a mission-critical process. If the cleaning is not effective the device simply will not function reliably for the required life of the product.

Assembly of Flexible Circuits

No matter the method, the assembly of electronic flexible circuits is tedious because of its inherent flexible nature. Therefore, we must give extra attention to the assembly process. This article details some of the key considerations when assembling flexible circuits.

Evaluating a PCB Assembler

When it comes to technology and quality, an SMT assembler's capabilities will be reflected when you go through the key elements in the SMT process. This article provides key points to consider in evaluating a PCB assembler, which allows you to test whether your circuit boards assembled in that factory conform to your required standard.

Electrolube Talks Technologies Targeted at Automotive and LED Applications

Electrolube's Phil Kinner, global head for the conformal coatings business, talks about the trends shaping the company’s product innovation strategies, and their latest solutions and technologies to help address their customers’ greatest challenges.

RTW IPC APEX EXPO: Kyzen’s Thomas Forsythe Talks Latest Developments in Aqueous Cleaning

Thomas Forsythe, executive vice president of Kyzen Corp., talks about the advantages of real-time concentration monitoring, data management and access to data as aqueous cleaning moves towards Industry 4.0.

LA/Orange County SMTA Tech Expo a Success

On November 3, I had the pleasure of attending the LA/OC SMTA Tech Expo in Long Beach, California, and meet with chapter President Kathy Palumbo and Vice President Scott Penin, to learn more about this annual event and the chapter’s ongoing activities.

SMTA Tech Expo Panel Session: It Takes a Village to Discuss Proper Cleaning Solutions

An expert in cleaning processes, Barbara Kanegsberg is known as “The Cleaning Lady.” She moderated the technical session “Ask the Experts: Meeting the Challenges of Effective Cleaning, Defluxing in Southern California.” Here Barbara discusses the myriad of challenges regarding cleaning PCBs (particularly in heavily regulated California) and what transpired during the open forum technical session.


Institute of Circuit Technology Hayling Island Seminar 2016

In recent years, the Hayling Island Seminar has become established as the most popular date on the Institute of Circuit Technology calendar and, as expected, the 2016 event attracted a large gathering of industry professionals to the south coast of England to share knowledge and experience and to discuss current developments.

Real Time with… SMTAI: Metcal Updates Scavenging with the Scarab

Paul Wood, applications manager at Metcal, discusses with I-Connect007’s Andy Shaughnessy how their standalone, contactless Scarab site cleaning system is helping manufacturers optimize their pad cleaning process.

Real Time with... SMTAI: KYZEN Pushes Cleaning Data to the Cloud

At the recent SMTA International exhibition, Tom Forsythe, executive vice president of Kyzen, discusses with I-Connect007’s Andy Shaughnessy their latest system that helps customers have a better handle on their cleaning process.

Saline Lectronics Invests in the Millennial Generation

You're heard all the knocks against millennials: they're flaky job-hoppers and they're tough to motivate. But Saline Lectronics has a larger presence of these younger employees, and they find quite a few advantages to hiring staff who are far from retirement age. Saline's Jason Sciberra explains how he manages and motivates these young people.

Being More than a Manufacturer’s Rep

Matt Bonweg, process support specialist at manufacturers' rep firm Murray Percival Company, speaks with I-Connect007's Patty Goldman during the recent SMTA Ohio Expo about the company's history and philosophy, as well as their strategies for success in this industry.

The Industry Speaks

In the latest issue of SMT Magazine, we take a pause from covering the latest technology trends, challenges, and solutions in the electronics manufacturing and assembly industry. Instead, we are focusing on our readers—to give a voice to their thoughts on the industry, companies, jobs, interests, and even pain points when it comes to their respective specialties.

Divergence in Test Results Using IPC Standard SIR and Ionic Contamination Measurements

This study will compare the results from testing two solder pastes using the IPC-J-STD-004B IPC TM-650 2.6.3.7 surface insulation resistance test and IPC TM-650 2.3.25 in an attempt to investigate the correlation of ROSE methods as predictors of electronic assembly electrical reliability.

To Clean or No Clean?

The addition of a cleaning process to your manufacturing line will amount to an added 5–6 cents per board produced. Mike Konrad of Aqueous Technologies believes that is a small price to pay for the added value, testing, and reduced liability and insurance that a cleaning solution can provide; however, he admits cleaning isn’t for everyone.

Solder Paste Exploration

From the manufacturers of solder pastes, to equipment makers, all the way to the solder paste inspection guys, and the electronics assemblers who are using their products, I talked to the supply chain to find out what’s going on in the solder paste printing process, what factors impact the process, the challenges, and the best practices to consider to be able to address those challenges and improve efficiencies and yield in the SMT line.

SMTA West Penn Chapter Plans Manufacturing Boot Camp in August

DRS Technologies' Bill Capen, who is also the president of the SMTA West Penn Chapter, talks with I-Connect007's Patty Goldman about their expanded Chapter Expo & Tech Forum, and their plans of doing a boot camp in August.


Taking the Gremlins Out of Your Process

Every step in your assembly line is supposed to be designed to perform optimally for you to have an efficient, reliable, robust and reproducible process. However, and as isolated as they may seem, "gremlins" sometimes appear and mess up the results of a batch. The latest issue of SMT Magazine features strategies that can help you address these issues.

IPC APEX EXPO: Foresite Discusses Cleaning Challenges

I-Connect007 guest editor Michael Konrad sits with Eric Camden, lead investigator with Foresite, to talk about cleaning and why it is now back in the spotlight in electronics assembly.

New Paradigms

While the latest technology innovations bode well for the electronics industry, they also offer many challenges in terms of the way products are being manufactured. The latest issue of SMT Magazine features "what's new" in the electronics assembly industry, and discusses how they are addressing current manufacturing challenges.

Greener Cleaning

While other electronic assembly processes measure performance in "more" – more feeders, more zones, more magnification, more capacity – cleaning equipment and chemicals measure progress in "less" – less water, less chemicals, less VOCs, less discharge, and less contamination. In this article, Aqueous Technologies' Mike Konrad writes why less is more in the cleaning world.

Rework Site Printing using Mini Stencils—Plastic Adhesive vs. Metal

Bob Wettermann of Best Inc. provides some details about a soon-to-be-published study that compares the older miniature metal stencil printing process to the more modern plastic film with adhesive approach, and quantifies the differences in performance for the first time.

Electrolube: We Like Problems!

I-Connect007 Technical Editor Pete Starkey toured Electrolube's UK headquarters in the historic Leicestershire town of Ashby-de-la-Zouch, where he learned more about the company's mission to exceed their customers' satisfaction and meet the highest possible levels of customer service.

The Road Less Traveled (Part 3): Why Process Controls and Pride Matter

In the last piece of this three-part article series, Zentech Manufacturing Inc.'s Judy Warner writes about the importance of SMT process controls and pride of ownership, and how having them as part of the company culture can lead to manufacturing and service excellence and success.

Doug Pauls Explains Ion Chromatography

Doug Pauls, principal materials and process engineer at Rockwell Collins and chair of the IPC Cleaning and Coating Committee, drew upon his 25 years' experience in the use of ion chromatography for electronics assembly improvement to discuss ROSE techniques, how ion chromatography can be used to determine electronic cleanliness, what specifications exist and how they were derived, and how ion chromatography can be used for process troubleshooting and optimization.

Medical EMS: Opportunities Abound

Megatrends such as the increasingly ageing population and growing demand in emerging economies worldwide bode well for the medical electronics assembly industry. However, challenges such as margin pressures, compliance costs and risks, supply chain instability, and new product introduction headaches are hindering a more aggressive prognosis of the industry. But, with innovation, medical manufacturers can churn out more.

Top 10 Factors to Consider When Selecting a Medical EMS Company

Once the decision has been made to use an EMS company, selecting the right one involves several steps. Although most EMS companies perform the same basic services, every EMS company is different. In this article, Mo Ohady and David Estes of Digicom Electronics write the 10 key factors to consider when selecting your medical EMS company.


Medical Electronics: Manufacturing Vitals

With the rapidly growing aging population, rising healthcare costs and increasing health awareness, opportunities abound in consumer medical devices, diagnostics, imaging, and instrumentation. However, the medical electronics industry is not without its own set of challenges. The January 2016 issue of SMT Magazine highlights the manufacturing challenges and opportunities in this growing sector.

Electrolube Discusses Conformal Coating Innovations

At productronica 2015, SMT007 editor, Stephen Las Marias, interviewed Phil Kinner, technical director of Electrolube's Coatings Division, about the latest conformal coating challenges being faced by their customers, and how they are addressing these issues. He also talked about the trends driving product innovation strategies at Electrolube, and some of the new solutions they are offering the market.

Printed Circuit Board Failures – Causes and Cures

PCBs can fail for a multitude of reasons. And the ability to detect and identify failures during assembly and final test is preferable to having to accept the consequences of field returns. This article details Bob Willis' recent webinar, which described failure mechanisms, demonstrated the use of standard test methods and tricks of the trade, and explained how to eliminate many of the common causes of PCB defects.

The New Industrial Era

Key transformative technologies such as big data, analytics, and IoT are ushering in a new industrial era, where new technology forces and innovations are changing the dynamics, risks, and success factors for global manufacturing companies. To be successful in this environment, a mindset shift is required when it comes to deciding what to do and how to take your manufacturing operations to the next level.

Reducing Print Cycle Time

Of the several steps in the SMT process, an effective method of increasing throughput is to reduce the cycle time of the rate-controlling process step. This article will discuss two simple experiments that may lead to increased throughput and increased profitability.

Zestron Highlights Benefits of pH-neutral Cleaning Solutions

I-Connect007's Andy Shaughnessy talks with Zestron's Sal Sparacino, marketing and product manager, and Umut Tosun, application technology manager, about the benefits of the company's pH-neutral cleaning agents for defluxing applications, and their advantages over alkaline-based cleaning solutions.

Kyzen Discusses Cleaning On the Stencil Printer

Thomas Forsythe, executive vice president of Kyzen, talks with I-Connect007's Andy Shaughnessy about the latest trends happening at his company and their focus on green cleaning solutions. He also explained the technical paper they presented at the SMTAI 2015 conference, which tackles cleaning on the stencil printer.

Connector Cleanliness and Flux Entrapment

Plated through hole connectors can present special challenges when it comes to assembly cleanliness and reliability. Cleanliness of the raw part, processing parameters and chemistry selection can all negatively affect the reliability and robustness of the interconnect system. This article will discuss some common issues and how to resolve them.

Localized Contamination Can Cause Big Problems

In today's electronics manufacturing environment, assemblers continue to overlook areas of localized contamination that are capable of causing product failures. By neglecting to examine especially sensitive, critical, or tightly packed areas on an assembly, opportunities for electrochemical failures loom. This article talks about a case study involving a visible white residue and dendritic growth in a connector area, and the analysis done to determine its cause and implications.

Residues Can Cause Low Voltage Electronics to Ignite

This article dispels the myth that low-power devices such as remote controls have insufficient energy to be a source of ignition. It also discusses why leakage current, even in low voltage/low power applications, can be sufficient to eventually ignite proximate fuel and lead to sustained fire in PCBA surfaces.


Advances in Electronics Assembly Technology - SMART Group Seminar Preview

In a preview webinar to introduce the upcoming SMART Group seminar where the latest advances in assembly technology and reliability will be discussed by industry and subject experts, SMART Group Technical Committee members Charles Cawthorne from MBDA and Ian Fox from Controls and Data Services summarized the papers to be presented.

Solder Jet Printing: Is It the Right Time?

Publisher Barry Matties gets an update from Nico Coenen, sales director for Mycronic, on their solder jet printing system. Mycronic has been developing and pioneering this technology for 10 years and they believe now is the time for it to gain real traction. One thing is certain; solder jet printing certainly has advanced and could make a big difference in process and quality.

Reliability Assessment of No-clean and Water-soluble Solder Pastes, Part II

Twenty-five years ago, solder paste residues had to be cleaned after reflow due to their corrosive nature: two ways of cleaning were available, either with solvent or by using water, with or without detergent. Now, the assembly world is mainly no-clean: paste formulation is safer in terms of chemical reliability and process costs are reduced without cleaning.

Doing Business in India and China

Electrolube Managing Director Ron Jakeman spoke to I-Connect007 Publisher Barry Matties at CPCA 2015 in Shanghai. The company, more than 70 years old, has evolved over the decades, from producing contact lubricants, to manufacturing globally, with subsidiaries worldwide, including Beijing, China. In this interview, manufacturing, state of the global markets, and even Indian cuisine are discussed.

Product Line Philosophy: Start Small...End Big

Ralph Savage, CEO of EasyBraid, talks to Kelly Dack about his company started their business, as well as some of the activites and technologies they are doing now, such as desoldering, stencil cleaning and a soldering technology based on the Curie principle. He also discussed the company's strategy in bringing world-class technology into the United States.

Neutral Cleaning and Latest Developments in Closed-Loop Control

Cleaning processes that are pH-neutral have become a trend-setter in semiconductor and power-electronics applications, and concentration management is simplified by full closed-loop control. Harald Wack and Todd Scheerer explain the technical and environmental benefits.

Role of Plasma in Reliability of Conformal Coating

Besides its established applications in PCB fabrication, plasma is increasingly used in preparing assenblies for conformal coating, rendering surfaces hydrophilic and so promoting wettability and coating adhesion for increased reliability.

Cadence’s Brad Griffin Digs Deep Into DDR

During DesignCon 2015, our roving reporter, Kelly Dack, stopped by to visit with Brad Griffen in the Cadence booth. What follows is their very interesting conversation that revolves around the evolution of DDR.

ZESTRON's Umut Tosun to Present at IPC APEX

In his presentation, ZESTRON's Umut Tosun will review the performance of pH neutral cleaning agents as compared to alkaline cleaning agents and DI-water for cleaning No Clean, RMA and OA flux residues.

ZESTRON to Hold 5-part Cleaning Webinar Series

ZESTRON has announced the first installment in the 2015 5-Part Cleaning Webinar Series titled "Defluxing in a No-clean and OA world".


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