Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1993-03-24
1994-08-23
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
174254, 174257, 174260, 361748, 361779, 428209, 428210, 428323, 428698, 428901, B32B 300
Patent
active
053406400
ABSTRACT:
A printed circuit module, particularly for electronic applications and equipment, comprising a rigid or flexible circuit carrier substrate (1), conductive traces (2) printed on the substrate, and electronic components (5) for electrical connection thereto. The conductive traces comprise a printed ink layer having fine conductive particles embedded therein. The ink is rendered conductive by a touch-contact distribution of the particles in the printed ink layer. The conductive particles comprise electrically conductive crystallites (8) composed of a non-oxidizable crystalline compound of an element of sub-group IV of the Periodic Table, along with nitrogen or carbon. The electronic components (5) are electrically connected to the conductive traces (2) with an anisotropic adhesive (7). The adhesive may also contain the crystallites to effect an electrical connection between the conductive traces (2 ) and the contact areas (6 ) of electronic components (5 ) .
REFERENCES:
patent: 3875434 (1975-04-01), Harden et al.
patent: 4696764 (1987-09-01), Yamazaki
patent: 4701279 (1987-10-01), Kawaguchi et al.
patent: 4844784 (1989-07-01), Suzuki et al.
Caldwell Stacey E.
Macholl Marie R.
Molex Incorporated
Ryan Patrick J.
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