Common Substrate Materials of Printed Circuit Board
The common substrate materials of printed circuit boards include paper-based CCL, epoxy glass cloth based CCL, composite CCL, metal based CCL, flexible CCL, ceramic substrate, copper-clad polyimide glass fiber cloth laminate and BT resin for high-frequency circuits. 1. Paper Based CCL Paper based CCL is made of fiber paper + adhesive through drying → copper …
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