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  2. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    Printed circuit board of a DVD player. Part of a 1984 Sinclair ZX Spectrum computer board, a printed circuit board, showing the conductive traces, the through-hole paths to the other surface, and some electronic components mounted using through-hole mounting. A printed circuit board (PCB), also called printed wiring board (PWB), is a medium ...

  3. Via (electronics) - Wikipedia

    en.wikipedia.org/wiki/Via_(electronics)

    A via (Latin, 'path' or 'way') is an electrical connection between two or more metal layers of a printed circuit boards (PCB) or integrated circuit. Essentially a via is a small drilled hole that goes through two or more adjacent layers; the hole is plated with metal (often copper) that forms an electrical connection through the insulating ...

  4. Polychlorinated biphenyl - Wikipedia

    en.wikipedia.org/wiki/Polychlorinated_biphenyl

    PCB warning label on a power transformer known to contain PCBs. Polychlorinated biphenyls (PCBs) are organochlorine compounds with the formula C 12 H 10−x Cl x; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment. [ 2 ]

  5. Motherboard - Wikipedia

    en.wikipedia.org/wiki/Motherboard

    A motherboard (also called mainboard, main circuit board, MB, base board, system board, or, in Apple computers, logic board) is the main printed circuit board (PCB) in general-purpose computers and other expandable systems. It holds and allows communication between many of the crucial electronic components of a system, such as the central ...

  6. Printed circuit board milling - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board_milling

    A milled printed circuit board. Printed circuit board milling (also: isolation milling) is the milling process used for removing areas of copper from a sheet of printed circuit board (PCB) material to recreate the pads, signal traces and structures according to patterns from a digital circuit board plan known as a layout file. [1]

  7. Conformal coating - Wikipedia

    en.wikipedia.org/wiki/Conformal_coating

    Conformal coating is a protective, breathable coating of thin polymeric film applied to printed circuit boards (PCBs). Conformal coatings are typically applied at 25–250 μm [1] thick to the electronic circuitry to protect against moisture and other potentially damaging conditions. Coatings can be applied in many ways including brushing ...