The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 1979
Filed:
Apr. 19, 1976
Gerd Muller, Mainz-Weisenau, DE;
Jenaer Glaswerk Schott & Gen., Mainz, DE;
Abstract
Glass compositions useful for passivating silicon semiconductor elements or bodies and to semiconductor elements or bodies coated by such glass compositions. The glass compositions are applied onto the surface of the semiconductor in the form of a finely ground powder and thereafter fused on at least a portion of the semiconductor element. The compositions comprise: (A) glass and (B) powdered cordierite in an amount effective to provide a coefficient of thermal expansion of up to 40 .times. 10.sup.-7 /.degree. C for said composition within the temperature range of 20.degree.-300.degree. C. The compositions are compatible with the thermal expansion of the silicon semiconductor and capable of adhering to the silicon in layers greater than 10 .mu.m without the formation of cracks.