Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1985-05-22
1987-04-28
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
228188, 228193, 228195, 228196, 264 56, 264 58, 264 65, 264 66, B32B 1800, B32B 3126
Patent
active
046611819
ABSTRACT:
A method of assembly of at least two ceramic components each having at least one flat surface, as applicable in particular to microwave equipment and encapsulation modules for microwave semiconductors. The starting components are made of ceramic material which has been pre-fired, or in other words heated to about 1500.degree. C., and are therefore rigid. The components are no longer joined together by means of a glass paste or a brazed joint between metallized parts but are heated to over 1700.degree. C. The impurities which are present in the ceramic material in a proportion of 1 to 10% serve as a flux and produce an autogenous weld between the two components. Prior to assembly, the ceramic components can be provided with metallizations such as electric tracks on condition that these metallizations are refractory.
REFERENCES:
patent: 3589000 (1971-06-01), Galli
patent: 3789499 (1974-02-01), Peguignet
patent: 4406722 (1983-09-01), Chow et al.
"Chemical Abstracts", vol. 100, No. 2, Jan. 1984, p. 297, No. 11547t, Columbus, Ohio (USA).
"22nd Electronic Components Conference", 15-17, May 1972, pp. 416-426, Washington, DC (USA), R. W. Ilgenfritz et al.
Camps Patrick
Roset Pierre
"Thomson-CSF"
Weston Caleb
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