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NPL to Host Electronics Reliability Webinars
February 27, 2020 | NPLEstimated reading time: 2 minutes
NPL is internationally recognised for its practical and innovative work on lead-free reliability, PCB interconnection failures, tin whisker migration and conformal coating research. These FREE online webinars provide the opportunity to draw on years of practical experience without leaving your desk. To participate, you need a phone line and Internet access. Please note that registration is essential.
The majority of webinars run for 60 minutes and each one is limited to 100 delegate/company registrations. A copy of each of the slides presented and links to NPL reports will be provided after the webinar. In preparation for the event and to ensure you are equipped to gain the maximum benefit, please read our simple Webinar Guidelines.
A New Draft Standard for Condensation Testing Martin Wickham/Ling Zou
17th March 2020
2:30 PM - 4:00 PM GMT
Achieving high reliability in service is the key issue in today’s high-density electronics assemblies. Electrochemical reliability becomes more critical, as electronic circuits move to increased packaging densities, and are operated in harsher environments (hotter/damper/condensing). Contaminants and bias with moisture facilitate electrochemical corrosion processes that result in a loss of continuity or short circuit (failures) on electronic assemblies. Moisture plays an important role for circuit failure, and condensation will accelerate the failures.
The electronics industry uses a number of condensation tests developed by large OEMs. They all differ and it is challenging and costly for materials suppliers to test multiple materials across all condensation tests. Additionally, most of these standards are based on changing the environment around the test vehicle to create condensation and are therefore highly dependent on the thermal mass of the test vehicle and capability of the chamber being utilised.
NPL has been working with industrial partners on a collaborative project to develop a new approach to create controllable condensation on test vehicles. The temperature of the test vehicles can be directly depressed to any required level without disturbing the stable environmental condition. Different levels of condensation can be cycled to simulate condensation real world scenarios. Results will be presented based on a test assembly with a range of fine pitch components including QFNs, QFPs and chip capacitors. In a 48 hour SIR test, coated assemblies with different coating variables, were subjected to eight increasing levels of condensation from low to high. The condensation level where SIR values dropped below 100 M? can be used to score the protection performance of different combinations of coatings, application processes and components. A draft standard is now in preparation and an outline of the new standard will be given for industry comment.
Suggested Items
D Coupon Testing and Data Insights With GreenSource Fabrication
04/17/2024 | Marcy LaRont, PCB007 MagazineMarcy LaRont spoke with Steve Karas of GreenSource Fabrication at the SMTA UHDI conference in March. He presented a case study that GreenSource undertook with a customer on critical via reliability with advanced materials and used the experience to highlight the importance and effectiveness of D coupon testing. He also discussed GreenSource’s approach to data aggregation and a new system they developed to use collected data effectively.
Three Industry Leaders Receive IPC President’s Award
04/17/2024 | IPCIn recognition of their leadership and significant contributions of time and talent to IPC and the electronics industry, three IPC volunteers were presented with the IPC President’s Award at IPC APEX EXPO in Anaheim, Calif., on April 9, 2024.
Yamaha to Showcase Latest-generation Assembly Equipment and Software Tools at SMTconnect
04/16/2024 | Yamaha Robotics SMT SectionYamaha Robotics SMT Section will team with its distributor ANS Elektronik to showcase innovations for high-speed surface mount assembly at SMTconnect 2024.
TT Electronics Awarded Contract with Kongsberg Defence and Aerospace
04/11/2024 | TT ElectronicsTT Electronics, a leading provider of global manufacturing solutions and engineered technologies, announced today that its Fairford UK business has been awarded a new contract with long-standing customer Kongsberg Defence and Aerospace (Kongsberg) for the production of complex cable harness solutions.
Infineon, Amkor Deepen Partnership and Strengthen European Supply Chain for Semiconductor Solutions
04/10/2024 | InfineonInfineon Technologies AG, a leader in power systems and IoT, is strengthening its outsourced backend manufacturing footprint in Europe and announced a multi-year partnership with Amkor Technology, Inc., a leading provider of semiconductor packaging and test services.