Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1986-02-28
1988-11-01
Kittle, John E.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428210, 428406, 428429, 428901, 174 685, B32B 300, B32B 516, B32B 900, H05K 100
Patent
active
047819685
ABSTRACT:
A low dielectric constant material for use in the formation of thick film circuits such as VLSI devices. The material comprises a thick film insulation matrix of standard viscosity; a thick film organic vehicle; and a plurality of dry, hollow, glass microspheres. The insulation matrix, vehicle, and microspheres are thoroughly combined into a homogeneous material of standard viscosity.
REFERENCES:
patent: 4134848 (1979-01-01), Adicaff et al.
patent: 4477492 (1984-10-01), Bergna et al.
IBM Tech. Discl. Bull., vol. 22, No. 5, 10-79, Haining & Herbaugh, p. 1799, Low Dielectric Constant Material for Printed Circuit Boards.
Glass Spheres-High Strength Fillers for Plastics, Europlastics Monthly, 11-73, pp. 60-61.
IBM Technical Disclosure Bulletin, vol. 22, No. 5, Oct. 1979, Haining and Herbaugh, Low Dielectric Constant Material for PCBs.
Digital Equipment Corporation
Kittle John E.
Ryan P. J.
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