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What is Printed Circuit Board

Date:August 2012

Copper foil thickness can be specified in ounces per square foot or micrometres. One ounce per square foot is 1.344 mils or 34 micrometres. (Provenance: Wikipedia)

A PCB populated with electronic components is called a printed circuit assembly (PCA), printed circuit board assembly or Turnkey PCBA (PCBA). In informal use the term "PCB" is used both for bare and assembled boards, the context clarifying the meaning. Alternatives to PCBs include wire wrap and point-to-point construction. PCBs must initially be designed and laid out, but become cheaper, faster to make, and potentially more reliable for high-volume production since production and soldering of PCBs can be automated. Much of the electronics industry's PCB design, assembly, and quality control needs are set by standards published by the IPC organization. (Provenance: Wikipedia)

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