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:
Jul. 23, 1985
Filed:
Jan. 16, 1984
Applicant:
Inventors:
Hermann Birnbreier, Sandhausen, DE;
Helmut Haas, Leimen, DE;
Assignee:
Brown, Boveri & CIE AG, Mannheim-Kafertal, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427102 ; 427103 ; 4273833 ; 338308 ;
Abstract
Method for producing a thin film resistor by vapor deposition or cathode sputtering techniques, wherein part of the resistance area of the film is covered by an electrically insulating layer which prevents oxygen diffusion onto the resistance material and causes a decrease of the resistance during aging, while the rest of the resistance area remains free.