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 gilt professional supplier, providing customers with high precision, high-quality circuit board in Shenzhen, quality assurance, reasonable prices. Surface of the circuit board processing there are many, Shen gold, silver, gold etc. craft gold-plate and gold plate is now commonly used in circuit board manufacturing processes. With a more integrated IC, IC foot the more dense. The vertical HASL process is difficult to become thin pads blow smooth, which gives the SMT placement brings the difficulty; another HASL's stand (shelf life) is very short. The gold plate just to solve these problems. The method of reduction reaction by chemical oxidation layer coating, generally thicker gold-plated circuit board wiring principle, is a chemical nickel gold layer deposition method can achieve a thicker layer of gold, usually called gold-plating gold technique Elkingtons invented by the 1840 patent cyanide gold-plated, gold-plated technology to create a precedent. Gold-plated technology not only efficient use of gold properties, and the gold used in key parts needed to board a thin gold gilt, gold is a festival of new technology, high economic efficiency, there is a wide range of practical value; in decorative plating and electronics widely used in industry; 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 storey density multilayer professional supplier, to provide customers with high-precision, high-quality circuit board in Shenzhen, quality assurance, reasonable prices. In the deposition, while nickel will produce phosphite (HPO3) byproduct, with production of phosphite concentration will be higher, so the reaction rate and inhibition by high product concentration of long, so the nickel deposition speed cylinder end of its life, compared with one-third of the initial difference between the normal phenomenon. However, this inherent reactant concentrations can be adjusted to make up for the way to be an initial open cylinder Ni concentration at 4.60g / L, with increasing Ni concentration control value MTO consequent increase until 5.0g / L stops. To maintain the deposition rate and the phosphorus content of stability in order to ensure quality of the coating. Guangdong gold-plated circuit boards gold-plated circuit board protection board _ _ Newell record (certified merchants) - The Department of Shenzhen Electronic Technology Co., Ltd. provided by. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) in the printed circuit board in this area devoted boundless enthusiasm and passion, Newell has been creating customer-centric, for customers to create Idea value, quality, service to win market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: Huang Shengxing.