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Z-Crown Group Network Co., Ltd. is located in Shenzhen city, Guangdong Province, China. It's a professional networking products manufacture.Producing & processing Cables ,Accessories,Equipments. Main
Industry Directory | Manufacturer
TTPL is a reputed EMS(Electronic Manufacturing Service) company offering PCBA, testing and box build on turnkey basis. Certified to ISO/TS16949, TTPL has been offering assembly services at superior quality since 1992.
Industry Directory | Manufacturer
Established in 2003,Shenzhen Keyou PCB Co. Ltd is a professional high-tech factory that is engaged in PCBs manufacturing,including high-precision double sided and multilayer circuit boards from China.
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We help engineers frustrated by the slow and burdensome process of getting prototype and low-volume production PCB assemblies built quickly and at a great price.
Technical Library | 2017-01-05 16:55:11.0
The July 2006 implementation of ROHS exempted automotive applications from converting to lead free technology. Nine years later, all major OEM and Tier 1 automotive manufacturers have converted or are in the process of converting to lead free circuit assembly processing. Starting with SAC (SnAgCu) alloys as a baseline for lead free soldering, in the last years several specific alloys were developed in order to improve resistance to high temperature creep, vibration survival and the ability to withstand thermal cycling and thermal shock.The paper compares three different solder alloys and two flux chemistries in terms of void formation and mechanical / thermal fatigue properties. Void content and reliability data of the alloys will be presented and discussed in relation to the acceptance criteria of a Tier 1 /OEM automotive supplier. As a result, a ranking list will be presented considering the combined performance of the alloys. In order to analyze the void formation and mechanical behavior of different solder alloys and flux chemistry combinations, statistical methods are used.
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