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:
Aug. 07, 1979
Filed:
May. 17, 1978
Applicant:
Inventor:
Wayne E Neese, Hoffman Estates, IL (US);
Assignee:
GTE Automatic Electric Laboratories Incorporated, Northlake, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
29620 ;
Abstract
A method for forming a film resistor for hybrid circuits trimmable from 0 ohms to infinite resistance, whereby resistive material is deposited over previously applied conductive material. One edge of the resistor material is flush with one edge of the conductor path and the resistor material extends beyond the opposite side of the conductor path. The resistor is trimmed to value by a laser or mechanically abrading a slot in its center perpendicular to the conductor by simultaneously removing a portion of both conductor and resistive material.