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SMTA Europe has announced Keynote Speaker Ralph Tuttle of Cree Inc. on High Power LED Solder Joint Reliability at the "Electronics in Harsh Environments Conference" to be held in Amsterdam, Netherlands, on April 25, 2018.
Advances in LED technology now allow operation at much higher temperatures while still achieving high lumen output and long lifetimes. While traditional lead-free SAC 305 solder alloys are acceptable for LEDs operating in benign conditions, they are not as reliable when LEDs are operated at high temperatures since they drive high currents. This talk will discuss failure modes associated with LEDs operating under stressful conditions. The research into alloy modifications to package construction will be presented.
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.
Russell Poppe, JJS Manufacturing
AOI has an invaluable role to play in speeding up the process of PCB production, in ensuring extreme precision to catch even the smallest of defects, and in minimizing the potential for time-consuming and costly reworking.