Coating processes – Electrical product produced – Resistor for current control
Patent
1986-08-04
1988-03-01
Kittle, John E.
Coating processes
Electrical product produced
Resistor for current control
338307, 338308, 357 67, 357 71, 427102, B05D 512
Patent
active
047285346
ABSTRACT:
In one embodiment of the present invention a thick film resistor structure comprising common materials is disclosed. The structure includes a supporting carrier as a base for the thick film resistor arrangement, which comprises a resistive material printed on the carrier, first and second noble metal terminating layers connected to either side of the resistive material, first and second barrier layers respectively connected to the first and second noble metal terminating layers, and first and second conducting layers respectively connected to said first and second barrier layers. The barrier layers are preferably composed of nickel or tungsten, whereas the noble metal terminating layers are preferably composed of silver. The resistive material, being formed between the terminating layers, is electrically connected to said copper conducting layers to form a precise thick film resistor structure whose resistance is measurable between said conducting layers.
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DuPont's MYDAS (.TM.) System Press Release.
Ho Roland K.
Jung Richard H.
Crawford Robert J.
Kittle John E.
Motorola Inc.
Owens Terry J.
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