Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1989-10-02
1991-07-02
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428209, 428426, 428433, 428457, 428901, 428192, 156 89, 361397, 361398, B32B 300
Patent
active
050284738
ABSTRACT:
An electrical circuit pattern is formed on a glass-ceramic, thermally fusible tape. The tape is heated to a temperature at which it becomes temporarily plastic, and is then bent into a desired non-planar shape. Further application of heat causes the tape to be sintered in the non-planar shape. A multi-layer structure can be provided by laminating plural layers of Low-Temperature-Cofired-Ceramic (LTCC) tape with respective circuit patterns formed thereon together, and plastically bending the laminated structure into the non-planar shape during the heating step. A circuit structure including an edge connector can be formed by laminating a layer of glass-ceramic transfer tape having an electrical circuit pattern which includes conductor strips formed on an edge connector portion thereof onto a relatively rigid substrate, such that the edge connector portion is bent around an edge of the substrate to form a rigid edge connector. The edge connector portion of the transfer tape which is formed into a non-planar shape during the lamination step, is fused together with the remaining portion of the transfer tape onto the substrate during the heating step.
REFERENCES:
patent: 4645552 (1987-02-01), Vitriol et al.
patent: 4786342 (1988-11-01), Zellner et al.
Tape Transfer Tech--1989, Intl. Journal Hybrid Microelectronics; vol. 12, No. 3, 9/89.
Johnson Gary W.
Vitriol William A.
Denson-Low W. K.
Gudmestad Terje
Hughes Aircraft Company
Ryan Patrick J.
Walder Jeannette M.
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