Electricity: electrical systems and devices – Miscellaneous
Patent
1991-09-03
1993-02-02
Picard, Leo P.
Electricity: electrical systems and devices
Miscellaneous
174254, 174260, 174261, 361396, 361395, 361398, 361404, 361405, 361406, 361408, 361409, 361417, 439 83, 257724, H05K 114, H01L 3906, H01R 909
Patent
active
051842840
ABSTRACT:
Engineering changes (EC) for an integrated-circuit (IC) module or circuits connected to an IC module sometimes require the addition of discrete electrical components or circuit chips. Such engineering changes are implemented herein on a small printed circuit card or board that may be physically attached to the top of the IC module. The EC pads on the printed circuit EC card are juxtaposed with the IC module input/output (I/O) pins that require the engineering change. A short fly wire is then soldered between each juxtaposed EC pad and the I/O pin to make the electrical connection between the EC card and the module. In this way, no additional surface area is consumed on the printed circuit board on which the module is mounted.
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Ashelin Brian T.
Bergquist Mark A.
Noltee, Sr. Dennis E.
Billion Richard E.
International Business Machines - Corporation
Knearl Homer L.
Picard Leo P.
Sparks D.
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