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The solder paste printing process accounts for almost 70% of PCB assembly defects. The December 2017 issue of SMT Magazine, which is available now, looks into the critical factors causing these challenges, and features strategies, tips and tricks, to help assemblers improve the yield and quality in the solder paste printing operation.
Read the December issue of SMT Magazine, now on the virtual newsstand, and available for delivery in your e-mailbox by subscribing here.
Be sure to download the PDF version for future reference.
Stephen Las Marias, I-Connect007
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.
Patty Goldman, I-Connect007
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.
Mark Whitmore and Jeff Schake, ASM Assembly Systems
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.