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 Shen copper circuit board, at reasonable prices. Reduced copper formaldehyde reaction can proceed smoothly what Shen copper circuit board substrate is, depending on the bath of NaOH, within a certain range, Shen copper circuit board details of the deal, a solution of NaOH value increases, the deposition rate of copper is accelerated, NaOH, but not 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 direct proportion to increase PTH circuit board manufacturing process in the low concentration range, but to a concentration of copper ion 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. Deburring mistakes may occur: too light brush impurity mill will not be a smooth surface of the plate cleaned or cause uneven surface; surface of the copper layer too much of brushing is to remove, or cause a rough and uneven surfaces. Too heavy or improper brushing also make the sheet edge to produce plastic flow phenomena, or the brush wheel itself will appear plastic flow phenomena. Such gum will make the copper plating and copper plating process to produce serious problems. Shen copper circuit board manufacturing process, Shenzhen Shen copper circuit board, Newell record (view) from the Department of Shenzhen-Electronic Technology Limited. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) is a professional "pcb board" company. Since its inception, we adhere to the "good faith, sound management" approach, the courage to participate in healthy competition in the market, so that the "division Snyder, Newell a" brand has a good reputation. We adhere to the "service first, customer first" principle, so that record Newell won the trust of customers all of the printed circuit board, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!