Low temperature sealing composition

Details Low temperature sealing composition Low temperature sealing composition

1983-08-10

1985-08-27

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 17, 501 75, 501 76, C03C 702

Patent

active

045378630

ABSTRACT:
A sealing composition suitable for sealing alumina packages for integrated circuits at a temperature below about 450.degree. C. for a short time of about 10 minutes. The composition is a mixture of 50-80 wt. % vitreous solder glass powder of PbO-B.sub.2 O.sub.3 system having a deformation point of 350.degree. C. or less, 1-35 wt. % first ceramic powder and 1-45 wt. % second ceramic powder. The total amount of the first and second ceramic powders is 20-50 wt. %. The first ceramic comprises 68-75 wt. % ZnO, 23-28 wt. % SiO.sub.2 and 0-8 wt. % Al.sub.2 O.sub.3, and the second ceramic comprises 98-99.9 wt. % SnO.sub.2 and 0.1-2 wt. % ZnO.

REFERENCES:
patent: 3108887 (1963-10-01), Lenie et al.
patent: 3208823 (1965-09-01), Baker et al.
patent: 3261667 (1966-07-01), O'Connor
patent: 3963505 (1976-06-01), Dumesnil et al.
patent: 4152182 (1979-05-01), Rutz
patent: 4186023 (1980-01-01), Dumesnil
patent: 4203733 (1980-05-01), Tanaka et al.
patent: 4256495 (1981-03-01), Kawamura et al.
patent: 4301060 (1981-11-01), Underwood et al.
patent: 4310357 (1982-01-01), Matsuura et al.
patent: 4352889 (1982-10-01), Takami et al.
patent: 4360610 (1982-11-01), Murray et al.
patent: 4421947 (1983-12-01), Kyle
patent: 4435513 (1984-03-01), Komeya et al.
patent: 4478785 (1984-10-01), Huseby et al.
Ceramic Industry, Jan. 1983, "Tin Oxide", p. 124 of Raw Materials _Handbook.
Chem. Abstracts 99: 26974q and 26975r, Jul. 25, 1983.
Circular, GEM-680, Aluminum Nitride, 2 pages, Jun. 1981.

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