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  2. Polychlorinated biphenyl - Wikipedia

    en.wikipedia.org/wiki/Polychlorinated_biphenyl

    The 1100 series was a crude PCB material which was distilled to create the 1200 series PCB product. [ 24 ] The exception to the naming system is Aroclor 1016 which was produced by distilling 1242 to remove the highly chlorinated congeners to make a more biodegradable product. "1016" was given to this product during Monsanto's research stage for ...

  3. Printed circuit board - Wikipedia

    en.wikipedia.org/wiki/Printed_circuit_board

    A printed circuit board (PCB), also called printed wiring board (PWB), is a laminated sandwich structure of conductive and insulating layers, each with a pattern of traces, planes and other features (similar to wires on a flat surface) etched from one or more sheet layers of copper laminated onto or between sheet layers of a non-conductive ...

  4. PCB congener list - Wikipedia

    en.wikipedia.org/wiki/PCB_congener_list

    Congener descriptors give a shorthand notation for geometry and substituent positions. The twelve congeners that display all four of the descriptors are referred to as being "dioxin-like", referring both to their toxicity and structural features which make them similar to 2,3,7,8-tetrachlorodibenzo-p-dioxin (2378-TCDD). [1]

  5. Rogers Corporation - Wikipedia

    en.wikipedia.org/wiki/Rogers_Corporation

    Rogers manufactures PORON® brand industrial microcellular polyurethane. [18] [19] PCB Duroid material. In March 2020 Rogers filed a complaint against ElastaPro for trade secret violations, claiming that this company had unlawfully obtained Rogers' technical formulations and manufacturing know-how. [20]

  6. Point-to-point construction - Wikipedia

    en.wikipedia.org/wiki/Point-to-point_construction

    This form of construction is used by amateurs for one-off circuits, and also professionally for circuit development, particularly at high frequencies. [4] For high-frequency work, a grounded solderable metallic base such as the copper side of an unetched printed circuit board can be used as base and ground plane.

  7. FR-2 - Wikipedia

    en.wikipedia.org/wiki/FR-2

    FR-2 (Flame Resistant 2) is a NEMA designation for synthetic resin bonded paper, a composite material made of paper impregnated with a plasticized phenol formaldehyde resin, used in the manufacture of printed circuit boards. Its main properties are similar to NEMA grade XXXP (MIL-P-3115) material, and can be substituted for the latter in many ...

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