Encyclopedia : F : FR : FR4 (3 articles)

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FR-4
FR-4, an abbreviation for Flame Resistant 4, is a type of material used for making a printed circuit board (PCB). It describes the board itself with no copper covering. The FR-4 used in PCBs is typically UV stabilized with a tetrafunctional resin system. It is typically a yellowish color. FR-4 m..

 

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