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 plywood professional supplier buried vias board main advantage is What, to provide high-precision, high-quality circuit board in Shenzhen, quality assurance, reasonable prices. HDI is the English HighDensityInterconnection abbreviation, the Chinese meaning is a high-density interconnect, generally non-mechanical drilling (laser drilling) buried vias PCB solder mask requirements, BMV aperture 6MIL less, between the inner and outer layers of wiring L / S in 4MIL below the pad and the ball pad diameter ≤φ0.35mm span in 30MIL the following method of adding layer of plywood production methods, known as HDI boards. The correct term should be BUM plate Snyder International Limited Shenzhen Branch - The 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 multilayer professional supplier buried blind holes in the circuit board fiberglass panels, providing customers with high-precision, high-quality Shenzhen circuit board buried vias boards, quality assurance, reasonable prices. Buried hole buried hole refers to do in the inner vias after lamination can not see it occupies less than the outer area of ??the hole is buried in the interior of the board. Is caught in the middle layer, from the surface can not see these processes, the top and bottom are invisible. Benefits can be buried vias increase alignment space. But the high cost of the process do buried vias, general electronic products do not use, only the very high end products will have applications. General application in six or more than six PCB board buried blind hole circuit board what the main advantage is that Newell record (certified) buried vias board provided by the Department of Shenzhen-Electronic Technology Co., Ltd. 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.