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. 1, the substrate grades, lots to find out; 2, printed circuit board technology, the thickness of the substrate to be accurate; 3, the mobile phone circuit board technology, the copper foil surface of the substrate without scratches, indentations or other extra material; 4, particularly the production of plywood, the material thickness of the inner and outer layers (including prepregs), to find out the thickness of the copper foil; 5, the substrate used to number Branch Snyder International Ltd. Shenzhen- Department of Electronic Science and Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-pane, double sided, 2-40 storey density multilayer professional providers, the flexible circuit board technology, to provide high-precision, high-quality Shenzhen circuit board, quality assurance, reasonable prices. Metallization process is a printed circuit board manufacturing technology is the most important step. The most commonly used method is to sink a thin copper process. Here how to control it, Guangdong circuit board technology, the following aspects: The most effective method is to use a copper sink and hanging blue tilt angle of 300, and have a certain distance between the substrates. To maintain the cleanliness of the solution must be filtered. Strictly control the quality of the solution temperature on PTH great influence, preferably with water jacket cooling device system; the cleaned substrate must be immediately bore water use hot air drying. Phone circuit board technology, Newell record (certified), Guangdong circuit board technology by the Department of Shenzhen-Electronic Technology Limited. 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.