Snyder Branch of Hong Kong Limited have sprayed tin, tin, and gold, OSP etc. Shenzheny Newell Electronic Technology Co. PBC surface treatment method, the main purpose is to prevent oxidation Branch Snyder forum International Co., Ltd. Shenzhen Department of Electronic Science and Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, 2-40 layer plywood professional supplier of silver circuit board, providing customers with high-precision, high-quality circuit board in Shenzhen Quality assurance silver circuit board needs attention, and reasonable price. Ionic contamination present on the surface of the circuit board ionic species interfere board electrical properties. These ionic liquid itself mainly from immersion silver (silver remaining in the sink or in the solder mask layer below). Shen different ionic silver content is different, the higher the ion content of the solution, in the same water conditions require several layers of silver circuit board, the higher the value of ionic contamination. One of the important factors porosity immersion silver layer also affect ionic contamination, high porosity layer of silver ions in the solution easily four remaining silver circuit board, so that the difficulty of washing increases, eventually leading to the corresponding values ??of ionic contamination increased. After washing effect will also directly affect the ionic contamination, washing inadequate or substandard water quality will cause excessive ion contamination. Silver circuit board requires several layers | Neijiang silver board | Newell Newell Chong Shenzhen Electronic Technology Co., Ltd. provided by. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) strong, credible, in Shenzhen, Guangdong printed circuit board industry 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!