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:
Apr. 20, 1993
Filed:
Feb. 25, 1991
Osamu Ito, Hitachi, JP;
Tadamichi Asai, Ibaraki, JP;
Toshio Ogawa, Katsuta, JP;
Noritaka Kamimura, Hitachi, JP;
Yoshishige Endou, Tsuchiura, JP;
Takao Kobayashi, Hitachi, JP;
Hiromi Isomae, Nakaminato, JP;
Masaki Kamiakutsu, Katsuta, JP;
Michio Otani, Chiba, JP;
Katsuo Ebisawa, Ibaraki, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
The present invention relates to a thick film resistor material which is suitable especially for thick film hybrid IC having conductor, resistor, semiconductor element and the like in which Cu is used as the conductor and furthermore, a thick film resistor composition which can be fired in a reducing atmosphere. The present invention further relates to a thick film hybrid IC using the thick film resistor composition as a resistor and a method for making it.