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. In today's increasingly superb technical ability, gold-plated circuit board manufacturers, IC foot more and more the more intensive, Shenzhen gold-plated circuit board, HASL process is difficult to fine leg pads blow formation, which gives soldering SMT Chip brings a difficulty, gold-plated circuit board substrate, the other inactive life HASL is also shorter, and PCB made of gold plate on just to solve these problems, for some ultra-small, such as 0603 and 0402 surface mount board, Gold-plated circuit boards difference, play a decisive role in the quality obtained, so the entire board gold in high-precision and ultra-small chip technology is relatively common. In the sample stage, the affected parts procurement cycle, generally do have to wait for some time after the PCB board, and sample costs less than the HAL. 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 Shenzhen board, quality assurance, reasonable prices. Prepreg cylinder no special role in the manufacturing process, but to maintain the activation of the cylinder and the copper surface acidity in the fresh state (no oxide), they enter the activation tank. Ideal prepreg cylinder except Pd, other concentrations consistent with the activation of the cylinder. In fact, the general palladium sulfate activation series uses sulfuric acid as presoak, hydrochloric acid palladium activation series with hydrochloric acid as the presoak, also the use of salt as a presoak (PH value of the additional adjustment). Otherwise, the activation process will result in the loss of protection was activated partial hydrolysis of palladium ions precipitate gold plating board Suppliers | Newell Year (Advisory) | Shenzhen Gold-plated circuit board provided by the Department of Shenzhen-Electronic Technology Co., Ltd. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) Guangdong Shenzhen, printed circuit board leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Newell create leadership with the staff warmly welcome all inquiries negotiations to create Newell create a better future.