Metal foil resistor

Details Metal foil resistor Metal foil resistor

H - Electricity

01

C

204/12, 338/18,

H01C 7/00 (2006.01)

Patent

CA 1143810

Abstract A thin film foil resistor is disclosed wherein a thin metallic foil is bonded to an insulating substrate and a circuit path is formed on the foil by photographic artwork-etching techniques. After the circuit is formed, the structure is subjected to another etching process to reduce the thickness of the foil circuit thereby adjusting the value of the resistor. Terminal lands of the circuit are electroplated and the connecting leads are soldered to the lands. The value of the resistor is finally adjusted by use of a laser beam, and the resistor is encapsulated.

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