Glass composition for covering semiconductor element

Details Glass composition for covering semiconductor element Glass composition for covering semiconductor element

1982-12-29

1985-09-17

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

427 93, 501 26, 501 61, 501 62, 501 63, 501 64, 501 76, C03C 308, C03C 310

Patent

active

045421056

ABSTRACT:
A glass composition for covering a semiconductor element. The glass composition has excellent resistance to chemicals and excellent electric characteristics. The glass composition includes 3 to 8% by weight of Al.sub.2 O.sub.3, 35 to 45% by weight of SiO.sub.2, 10 to 30% by weight of ZnO, 5 to 30% by weight of PbO, 1 to 10% by weight of B.sub.2 O.sub.3, and more than 5% but not exceeding 20% by weight of an alkaline earth metal oxide selected from the group consisting of MgO, CaO, SrO and BaO, where the maximum contents of MgO, CaO, SrO and BaO are 7% by weight, 3% by weight, 7% by weight, and 15% by weight, respectively.

REFERENCES:
patent: 3303399 (1967-02-01), Hoogendoorn et al.
patent: 3950174 (1976-04-01), Suzuki et al.
patent: 4133690 (1979-01-01), Muller

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