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. 29, 1985
Filed:
Feb. 07, 1984
Applicant:
Inventors:
Keiji Harada, Tokyo, JP;
Akio Sato, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
204 15 ; 204 / ; 427 79 ; 427102 ; 427103 ; 427 96 ; 427123 ; 4271263 ; 4273833 ; 156656 ;
Abstract
A thin film circuit including resistor elements and capacitor elements is prepared by forming a tantalum film for capacitor on an insulating substrate, forming a tantalum film for resistor over the substrate, covering a predetermined region of the tantalum resistor film with a titanium film, heat treating a resulting assembly, removing the titanium film, and then covering the predetermined region with a metal film to provide ohmic contact therebetween.