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. General requirements for the relatively high board, flatness better, generally on the use of Immersion Gold, Immersion Gold generally does not appear the phenomenon of black mat after assembly. Shen gold plate flatness and inactive life with gold plating as well. Immersion Gold is relatively gilded crystal structure is more compact, easy to produce an oxide. 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 circuit board professional supplier of gold-plated metal thickness, to provide high-precision, high-quality gold-plated circuit boards Shenzhen circuit board, quality assurance, reasonable prices. Copper surface must also be micro-roughening treatment, the copper surface micro-roughness of the surface, in order to increase the bond strength of the copper layer and nickel layer. Because nickel coating has a certain stress why choose gold-plated circuit boards, especially in the light of this stress will form the copper surface tensile stress, and the separation from the copper surface, the micro-roughened aim is to increase the nickel plating adhesion. Due to rough treatment properly, resulting in a copper layer surface asperity, so consistency nickel plating distribution directly affected, causing local with good adhesion, scattered parts of difference, and the nickel layer delamination from the surface of the copper. Newell record (Figure), gold-plated circuit board manufacturer, Shenzhen gold-plated circuit boards by the Department of Shenzhen-Electronic Technology Limited. 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.