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. 13, 1981
Filed:
Mar. 19, 1979
Applicant:
Inventors:
Norman R Landry, Willingboro, NJ (US);
Samuel L Williams, Glassboro, NJ (US);
Robert L Schelhorn, Cinnaminson, NJ (US);
Assignee:
RCA Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338314 ; 2961 / ; 29613 ; 338309 ; 338320 ; 338260 ;
Abstract
A thick film resistor element capable of dissipating relatively large amounts of microwave energy comprises several distinct layers of resistive material overlying an electrically insulating thermally conducting substrate. The final dimensions of the element can be made comparatively small with respect to a conventional element having comparable dissipation capability. The element has a coating of a crossover dielectric material which provides a moisture barrier between the element and the ambient.