Dielectric composition having controlled thermal expansion

Details Dielectric composition having controlled thermal expansion Dielectric composition having controlled thermal expansion

1989-02-10

1990-10-09

Ryan, Patrick

Stock material or miscellaneous articles

Composite

Of quartz or glass

428432, 428446, 428688, 428901, 501 15, 501 17, 501 20, 501 22, 501 61, 501 62, 501 73, 501 76, B32B 900

Patent

active

049619985

ABSTRACT:
Dielectric ink, paste and tape compositions having controlled thermal expansion contain a mixture of glasses wherein at least one glass has a coefficient of thermal expansion (CTE) below the CTE of the substrate to which the dielectric composition is applied and at least one glass has a CTE above the CTE of said substrate. The dielectric compositions significantly reduce or eliminate warpage of the substrate.

REFERENCES:
patent: 4645552 (1987-02-01), Vitriol et al.
patent: 4649125 (1987-03-01), Takeuchi et al.
patent: 4654095 (1987-03-01), Steinberg
patent: 4777092 (1988-10-01), Kawakami et al.

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