Specializing in the technical industry, exclusive knowledge of PCB circuit boards-

Specializing in the technical industry, exclusive knowledge of PCB circuit boards Release time: 2017-12-14 0 Specializing in the technical industry, no matter which industry has its own set of professional knowledge, PCB circuit boards are no exception, today for everyone Tell some technical terms of PCB circuit boards, technical personnel engaged in circuit boards will definitely use: The materials used to make circuit boards usually include XPC, FR1, FR2, CEM1, CEM3 and FR4. XPC, paper core, no 94-VO fireproof mark; FR1, paper core phenolic resin copper clad laminate (no electroplating, tin spraying, high temperature resistance 105 degrees Celsius); FR2, paper core phenolic resin copper clad laminate (no electroplating] spray Tin, high temperature resistance of 130 degrees Celsius); CEM1, paper core epoxy resin copper clad glass cloth board (broken glass fiber); CEM3, paper core epoxy resin copper clad glass fiber board (whole glass fiber) is generally used to produce single-sided panels; FR4, epoxy resin copper clad glass cloth board (whole glass fiber) is generally used to produce double-sided and multi-layer boards; Electroplating: tin spraying is hot air leveling; Line: silk screen is printed according to customer requirements, generally White; green oil is green solder resist; Shape: cutting is also called V-cutting, milling is also called gong board;