Question:

What is FR4 sheet

What is FR4 sheet

Answer:

FR-4 is a glass fiber epoxy resin CCL, a circuit board in the substrate, in fact, you should have seen, such as the kind of small game machine to open, inside the green board is FR-4 to do circuit board. FR4FR5 epoxy board by a special electronic cloth impregnated with epoxy phenolic resin and other materials by high temperature and high pressure hot plate made of laminated products. With high mechanical properties and dielectric properties, good insulation properties and heat resistance and moisture resistance, and a good mechanical processing. Application: for electrical and electrical equipment for the insulation structure of parts, also widely used In the PCB test; and can be used in humid environmental conditions and transformer oil.
FR-4 is a glass fiber epoxy resin CCL, a circuit board in the substrate, in fact, you should have seen, such as the kind of small game machine to open, inside the green board is FR-4 to do circuit board.

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