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:
Dec. 07, 1976
Filed:
Jun. 02, 1975
Applicant:
Inventor:
William R Bratschun, La Grange, IL (US);
Assignee:
Zenith Radio Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G / ;
U.S. Cl.
CPC ...
317258 ; 317261 ;
Abstract
An alumina substrate thick film circuit includes capacitors sealed with two intermediate layers of non-conductive material and two layers of sealing glass. The temperature coefficient of expansion of the sealing glass is less than that of the substrate. The temperature coefficient of expansion of the intermediate layer material is intermediate those of the substrate and the sealing glass, or equal to that of the sealing glass.