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About: Copper pour     Goto   Sponge   NotDistinct   Permalink

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In electronics, the term copper pour refers to an area on a printed circuit board filled with copper (the metal used to make connections in printed circuit boards). Copper pour is commonly used to create a ground plane. Another reason for using copper pour is to reduce the amount of etching fluid used during manufacturing. PCB designers today almost invariably use completely solid areas of copper pour that completely cover the remaining area outside those tracks, pads, and stand-off regions. Many early PCBs have a "hatched copper pour", sometimes called a "cherry pie lattice".