Branch Snyder Department of International Ltd. Shenzhen-Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 layer multilayer professional providers, to provide customers with high-precision, high Shenzhen circuit board quality, quality assurance, reasonable prices and fast deposition of very thin, loose structure and a porous layer of immersion silver circuit board in terms of Shenzhen silver oxide points, turn a great opportunity to continue to make the end of the copper and air contact re-oxidation. For the sake of attempts to prevent this vulnerability, it is bound to thicken silver coating to prevent leakage of its grain boundaries (GrainBoundary) of. However, thick silver layer not only make the rising cost of silver circuit boards Shenzhen oxide points, and slit the Jia Tiffany bite copper effect will be more exacerbated. And, after an increase in ionic contamination which solder will also deteriorate, and even micro-hole solder joints and other problems with brittle Snyder International Limited Shenzhen Branch Newell Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 layer plywood professional supplier Shenzhen oxidation spot silver circuit board, providing customers with high-precision, high-quality circuit board in Shenzhen, quality assurance Shenzhen silver circuit board oxidation spot, reasonable prices . Microvoids co-occurrence seems to have deposited a silver layer about the type and composition of organic matter. For the above phenomenon, the original equipment manufacturer (OEM), device production services (EMS), PWB manufacturers and chemical suppliers were welding a number of studies under simulated conditions, but no one can completely eliminate the microvoids. Newell record (Figure) _ _ silver circuit board particularity Shenzhen silver circuit board provided by the Department of Shenzhen-Electronic Technology Co., Ltd. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) located in Bao'an District of Shenzhen City forward Road Newell Innovation Center B507. Scraps and development in the wave of market economy, the current record Newell has a high profile in the printed wiring board, enjoy a good reputation. Newell Chong made the whole network business alliance certification, marking our service and management level has reached a new height. Newell hit the staff willing to work with all people of insight and common development, for a better future.