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 plywood professional supplier of circuit boards exposed copper silver serious, to provide customers with high-precision, high-quality circuit board in Shenzhen, quality assurance silver circuit board manufacturers, the price is reasonable for copper corrosion effect Jia Tiffany has failed to eradicate it, the reason is the board with three-dimensional copper masking edge the line has always been there more slits (Crevice), so in wet immersion silver plating process will make silver liquid by capillary action continues to penetrate the slit, plus cleaning after unexpectedly difficult under full power, resulting in Jia Tiffany corrosion reaction between the electrochemical cell type silver ions and copper metal. In fact only when copper metal corrosion becomes copper ions release electrons, ions to produce silver deposition reaction. No way to avoid this kind of trouble is also the silver layer thickness (immersion plating time) related to the thicker of course, the more bad. 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 silver circuit board belongs to which board, quality assurance, reasonable prices. Although all microcavity immersion silver layer occurs in thick silver (thicker than 15μm) surface, but not all thick silver layer occurs microcavity. When the copper surface structures immersion silver bottom layer is very rough more prone to micro voids. Newell record (Figure) | silver circuit boards exposed copper grave | Shenzhen silver circuit boards by the Department of Shenzhen-Electronic Technology Limited. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) adhere to the "people-oriented" business philosophy, with a professional staff, and strive to provide the best products and services to contribute to the community, and welcome new and old customers throughout the visit, sincere cooperation for a better future. Newell create - your trusted friend, Company Address: Bao'an District of Shenzhen City forward Road Newell Innovation Center B507, Contact: Huang Shengxing.