Electricity: conductors and insulators – Boxes and housings – Hermetic sealed envelope type
Patent
1991-06-25
1992-06-16
Picard, Leo P.
Electricity: conductors and insulators
Boxes and housings
Hermetic sealed envelope type
361392, 361395, 361397, 361402, 338195, H01L 2302, H01C 1000
Patent
active
051226200
ABSTRACT:
A generic chip carrier is described which includes, as integral parts, a voltage bus and a plurality of terminating resistors connected between the voltage bus and signal traces on the carrier. The voltage bus wraps around the chip carrier, thus providing a large area of metal. Through the selective use of the terminating resistors, the generic carrier can be customized for a particular type of integrated circuit, i.e., source or destination termination of signals. A signal trace may be customized by "operating" the terminating resistor with a current spike applied by a standard electrical probe. Spare bonding pads and terminating resistors are placed at intervals about the periphery of the carrier as insurance against defective or mistakenly removed terminating resistors.
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Harold J. Pawluk, Thin Film Resistors Plated on Circuit Boards, Jul. 1967, pp. 62-64.
August Melvin C.
Kruchowski James N.
Nelson Stephen
Neumann Eugene F.
Steitz Richard R.
Cray Research Inc.
Ledynh Bot
Picard Leo P.
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