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 electroless copper circuit board paint, quality assurance, reasonable prices. Copper reduction reaction of formaldehyde can proceed smoothly, depending on the bath NaOH, electroless copper circuit board purchase within a certain range, as the value increases NaOH solution electroless copper circuit board materials, deposition rate of copper is accelerated, but NaOH can not be too high, otherwise aggravate side reaction, resulting in an unstable bath. Deposition rate of copper ion concentration electroless copper plating solution, with the bath Cu2 + ion concentration increases accelerated, almost in direct proportion to the increase by electroless copper circuit board in the low concentration range, but to a concentration of copper ions concentration , the deposition rate increases slowly. While high concentrations of Cu2 + ion plating deposition rate can be obtained faster, but the copper ion concentration is too high, a side reaction increased, resulting in an unstable bath. 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. Section and strong copper ring (MLB) of non-metallic hole, to be treated non-metallic epoxy resin, glass filaments of the second portion. Section and copper (plywood) of surface of the ring-bodied. Copper substrate surface with positive charge, the non-metallized substrate surface with a uniform weak negative charge, plywood after Desmear treated more negatively charged. When activated palladium colloid micelles are negatively charged, so negative negative repulsion, palladium colloid adsorption can not be effective, so to change the surface of the plate, especially the non-metallized surface electrical properties Newell record (Figure) _ Chemical Shen copper circuit board difficulty factor _ Guangdong electroless copper circuit board provided by the Department of Shenzhen-Electronic Technology Co., Ltd. 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.