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, Shenzhen gold-plated circuit boards, to provide customers with high-precision, high-quality circuit board in Shenzhen, gold-plated circuit board recycling, 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. 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, gold-plated circuit board selection, to provide customers with high-precision, high-quality circuit board in Shenzhen, quality assurance, reasonable prices. The most important factor affecting the activity of the nickel content of the stabilizer cylinders, commonly used stabilizer is Pb (CH3COO) 2, or thiourea, there are two simultaneous use. The role of stabilizer is selectively control chemical nickel, and an appropriate amount of stabilizer the copper surface activation can occur after a good nickel deposit and the substrate or green oil fraction not produce chemical deposition. When the stabilizer content is low, the selective chemical nickel deteriorates, PCB surface portions are slightly active nickel deposits occur, then surface alloying problem occurs. When the high content of the stabilizer, selective chemical deposition too, PCB leakage copper surface activation effect only good bit only happen copper nickel deposit, then part leakage occurs Pad bits plated gold-plated circuit board to select phenomenon, Shenzhen Gold-plated circuit board, Newell Newell hit by the Shenzhen Electronic Technology Limited. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) strong, credible, a printed wiring board in Shenzhen, Guangdong and other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Newell invasive and you hand into the brilliant, for a better future!