FR4 PCB is a kind of printed circuit board with FR4 as the substrate material.FR4 is a kind of epoxy glass fibre cloth laminate, which has good insulation, mechanical strength and flame retardancy. It can be used for low to medium frequency electronic circuit boards.
Selection of high-quality raw materials, circuit pattern transfer and etching, drilling process, lamination (multilayer boards), surface treatment process, quality inspection and control.
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