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:
Apr. 05, 1977
Filed:
Nov. 29, 1974
Applicant:
Inventors:
John P Maher, Adams, MA (US);
Theodore W Johnson, Williamstown, MA (US);
Assignee:
Sprague Electric Company, North Adams, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338309 ; 338308 ; 338328 ;
Abstract
A cermet resistor employs film terminations of sub-micron thickness. The terminations contain particles of SiO.sub.2 or MnO.sub.2 that may be conveniently made by mixing such particles in a metal resinate paste, screening the paste on a glazed or unglazed substrate and firing. A glass containing resistor paste is screened in overlapping relationship with the fired terminations and is itself fired. The particle additives ameliorate cracking of the terminations at resistor firing and enhance the termination to substrate bond.