Electrical resistors – Incased – embedded – or housed – Casing or housing formed on and hardened on resistor
Patent
1979-06-29
1981-12-15
Albritton, C. L.
Electrical resistors
Incased, embedded, or housed
Casing or housing formed on and hardened on resistor
29613, 338195, 338308, 338329, H01C 1034
Patent
active
043062172
ABSTRACT:
Substantially flat thin foil electrical components, e.g. thin foil resistors, are 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 or other techniques. Terminal lands of the circuit are electroplated on the foil connecting leads having paddles or flattened portions formed with a hole or slot therein are soldered to the lands such that the solder extends into the hole or slot. The value of the resistor is finally adjusted by use of a laser beam, at least one bead of rubber is applied on at least a portion of the edges of the substrates, and the resistor is encapsulated.
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Albritton C. L.
Angstrohm Precision, Inc.
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