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. As electronic devices become more complex and require more and more natural parts, PCB top of the line and part of more and more intensive. Bare board (top no parts) is also often referred to as 'the printed circuit board Printed Wiring Board (PWB)'. The base board itself is insulated, it is not easy to bend the material made into. Can be seen on the surface of fine copper wiring material, copper foil originally covering the entire board, and in the part of the manufacturing process is etched disposed, he left to become part of the mesh of the fine line . These lines are called conductors or said wiring and circuit components on the PCB to provide connectivity 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 supplier, to provide customers with high-precision, high-quality circuit board in Shenzhen, quality assurance, reasonable prices. In this part of CCL multilayer circuit board module, B grade plate may occur in the raw material has three main circuit board module, a glass cloth defect, and the second is a problem prepreg or out of date, and the third is a copper foil pinhole and oxidation, and in the CCL manufacturing process will produce B-stage sheet circuit board modules may use in the field, a process is a glass cloth impregnated with epoxy resin in time, not all impregnated, the presence of bubbles. The second is in Overlaid CCL, the pressure with the temperature right, resulting in gum or adhesive characteristics of a circuit board module, which also generates a B-level board. Above that is the core material of PCB CCL produces a B-level board, and a lot of PCB manufacturing process, will also have a lot of B board circuit board module main advantages Newell invasive, Shenzhen circuit board module from Shenzhen Newell Electronic Technology Limited. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!