Indium Corporation Regional Product Manager Wisdom Qu will present at the iNEMI Workshop on Automotive Electronics on October 13, in Shenzhen, China.
In her presentation Low-Voiding, High-Reliability, Lead-Free Solder Paste Design for Automotive Applications, Qu will examine the results of a test comparing a solder paste based on a mixed powder technology, containing Sn/Ag/Cu/Bi/Sb/In in the final joint, with SAC305 and other high-reliability pastes. The voiding from a QFN package was consistently lower than 15%, which is better than SAC305. TCT reliability under AEC Grade 1 for BGA192, QFN, and chip-resistor also demonstrated improved reliability compared to SAC305 and the other high-reliability alloys.
With the rapid growth of the 5G and EV markets, the electronics industry has higher requirements for product reliability, with the extended lifetime under AEC Grade 1 or even Grade 0 conditions. Traditional high-reliability solder alloys contain five or six elements or even more, which strengthens through solid solution and/or precipitate solution.
“The microstructural complexity of the multi-element high-reliability alloys makes the melting behavior complicated, which may lead to worsened voiding performance compared to traditional SAC305 after reflow,” said Qu. “Designing the solder paste with mixed powder technology can reduce voiding by using at least one ternary or quaternary alloy powder constituent in the paste while the final joint is still a quinary or even senary alloy system.”
As Regional Product Manager for PCB Assembly Solder Paste in Asia, Qu facilitates business development and growth of PCB assembly product offerings, focusing on solder paste. A certified SMT process engineer, she has more than 17 years of experience in surface mount technology and earned a degree in mathematics from Hubei Radio and Television University in China.
關於 Indium Corporation
Indium Corporation 是全球電子、半導體、薄膜和熱管理市場的主要材料精煉商、冶煉商、製造商和供應商。產品包括焊料和助熔劑；銅钎；熱介面材料；濺鍍靶材；铟、鎵、锗、錫金屬和無機化合物；以及 NanoFoil 。公司成立於 1934 年，擁有全球性的技術支援，工廠分佈於中國、德國、印度、馬來西亞、新加坡、南韓、英國和美國。
如需更多關於 Indium Corporation 的資訊，請造訪www.indium.com或寄電子郵件給Jingya Huang。您也可以在www.linkedin.com/company/indium-corporation/ 追蹤我們的專家，From One Engineer To Another (#FOETA)。
