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:
May. 19, 1998
Filed:
Apr. 26, 1996
Shinji Ota, Nukata-gun, JP;
Takashi Nagasaka, Anjo, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A thick-film resistor in a thick-film printed substrate, the resistance of which is maintained at an appropriate value, is disclosed. In a thick-film printed substrate formed by printing a thick-film conductor and a resistor of lanthanum boride type on a ceramic substrate and then sintering, an intermediate resistor layer of lanthanum boride type is provided between the thick-film conductor and the resistor of lanthanum boride type. Reaction of glass composition contained in the thick-film conductor is suppressed, and resistance abnormality is prevented during sintering by causing the intermediate resistor layer of lanthanum boride type to be interposed.