Mixed-signal PCB layout and wiring techniques will be illustrated through the design of the OC48 interface card. OC48 stands for Optical Carrier Standard 48, which is […]

The most common drilling holes in PCB: through-hole, blind hole, buried hole. The meaning and characteristics of these three holes. Through-hole (VIA), a common hole used […]

Introduction With the continuous improvement of human requirements for the living environment, the environmental problems involved in the PCB production process are particularly prominent. Lead and bromine […]

A large number of quality problems related to the etching surface are focused on the etched part of the upper surface, and these problems come from […]