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Copper-Clad FR-4 Board: Glass Cloth, Epoxy and Foil
FR-4 is the board most printed circuits are made on: woven fibreglass cloth bound with an epoxy resin that is flame resistant (self-extinguishing, typically through bromine compounds). Glass cloth impregnated with resin is called pre-preg. Stacks of pre-preg with copper foil on the outside are laminated in a press with heat and pressure into one inseparable board, the copper-clad laminate that circuits are later etched from.
高级
Factory process
说明
1
1
Impregnate
Impregnate
Impregnate the woven glass cloth with the flame-resistant epoxy resin to make pre-preg sheets.
此步骤所需材料：
玻璃纤维布1 as required
环氧树脂1 as required所需工具：
半固化片浸渍生产线2
2
Stack
Stack
Stack the pre-preg sheets with copper foil on one or both outer faces.
此步骤所需材料：
铜箔1 as required3
3
Laminate
Laminate
Press the stack with heat and pressure for a set time, curing it into one solid board.
所需工具：
加热层压机
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