Electrical resistors – With base extending along resistance element – Resistance element extends through base
Patent
1990-12-17
1992-11-17
Lateef, Marvin M.
Electrical resistors
With base extending along resistance element
Resistance element extends through base
338307, 338308, 338314, H01C 1012
Patent
active
051646994
ABSTRACT:
Via resistor structures in a hybrid multilayer circuit having a plurality of insulating layers. One via resistor structure includes a plurality of resistive via fills in vias in respective adjacent insulating layers, a plurality of conductive elements for electrically contacting predetermined tops and bottoms of the resistive via fills, and conductive via fills for providing external electrical connection to selected ones of the conductive elements at locations on the outside the unitized multilayer circuit structure. A further via resistor structure includes a resistive via fill formed in a via in one of the insulating layers, and one or more thermally conductive via fills for thermally conducting heat from said resistive via fill to the outside of the unitized multilayer circuit structure. Another via resistor structure comprises ratioed via resistors comprising a plurality of resistive via fills formed in respective vias in one of the insulating layers, said vias having substantially the same thickness and having respective cross-sectional areas selected to provide resistance values having predetermined ratios.
REFERENCES:
patent: 4300115 (1981-11-01), Ansell et al.
Brown Raymond
McClanahan Robert F.
Shapiro Andrew A.
Smith Hal D.
Alkov Leonard A.
Denson-Low Wanda K.
Hughes Aircraft Company
Lateef Marvin M.
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