Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1987-06-22
1988-04-05
Swisher, Nancy A. B.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428356, 428328, 428901, B32B 1500, B32B 300
Patent
active
047358475
ABSTRACT:
An electrically conductive adhesive sheet is disclosed which has an electrically conducting property across a thickness thereof and an electrically insulating property along a sheet surface direction. The electrically conductive adhesive sheet comprises an electrically insulating adhesive material and electrically conductive metal powder uniformly dispersed therein. The metal powder has a melting point lower than a certain working temperature, and is flattened by application of pressure between a pair of conductors between which the adhesive sheet is provided. The adhesive material is molten at the certain working temperature and is flown by application of pressure. The adhesive sheet is useful to electrically connect a pair of circuit boards each having a plurality of conductor patterns thereon by bonding corresponding ones through the metal powder as molten, while keeping the neighboring patterns insulated. The circuit board is mechanically integrated simultaneously by the adhesive sheet. The circuit board and the connection structure using such an adhesive sheet as above are also disclosed.
REFERENCES:
patent: 3740366 (1973-06-01), Sandeison et al.
patent: 3762946 (1973-10-01), Stow et al.
patent: 3778306 (1973-12-01), Stow
patent: 4258100 (1981-03-01), Fujitani et al.
patent: 4546037 (1985-10-01), King
patent: 4548862 (1985-10-01), Hartman
patent: 4680226 (1987-07-01), Takeda
Ando Hisashi
Fujiwara Yoshio
Kobayashi Naotake
Matsubara Yuichi
Numao Hidehiro
Sony Corporation
Swisher Nancy A. B.
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