Joined metal composite and method for production thereof

Details Joined metal composite and method for production thereof Joined metal composite and method for production thereof

1989-06-16

1991-01-15

Silverman, Stanley

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 89, 156257, B32B 3100

Patent

active

049850970

ABSTRACT:
Disclosed is a joined ceramic-metal composite having a copper sheet directly joined to a ceramic substrate and a method for the production thereof. This composite is characterized by having a plurality of parallel grooves formed on the surface of the copper sheet to be joined to the ceramic substrate. The products of this invention show substantially none of the defects such as blisters inflicated on the copper sheet during the course of union by heating and, therefore, serve advantageously as ceramic circuit substrates for use in transistor modules, for example.

REFERENCES:
patent: 2638430 (1953-05-01), Mann
patent: 3994430 (1976-11-01), Cusano
patent: 4409278 (1983-10-01), Jochym
patent: 4505418 (1985-03-01), Neidig et al.
patent: 4591401 (1986-05-01), Neidig et al.

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