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. 16, 1989
Filed:
Jul. 09, 1987
Tsuneo Kaneko, Yokohama, JP;
Shiro Ezaki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A method of manufacturing a substrate coated with a plurality of thick films wherein conductive layers are wholly prepared from conductive paste, and also a device comprising the substrate. The present invention offers the advantages that the drawbacks accompanying the conventional conductor of silver-palladium base are overcome by forming a resistor having a required resistivity and a high reproducibility. A conductive paste and insulative paste are fired at a lower temperature than that at which the resistor paste is fired, without reducing the adhesion strength of the conductive layer to the substrate. A low temperature melting point crystalline composition is used as an insulative layer to ensure that the resistance of the resistor is not adversely affected by repeated firings.