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. 23, 2002
Filed:
Sep. 25, 2000
Masaaki Hayama, Nara, JP;
Noboru Mouri, Osaka, JP;
Hayami Matsunaga, Osaka, JP;
Masayuki Mizuno, Osaka, JP;
Eiji Kawamoto, Osaka, JP;
Yuji Yagi, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention relates to a manufacturing method of a ceramic substrate used in various electronic appliances, and more particularly to a manufacturing method of a ceramic substrate forming a conductor pattern by intaglio printing. A conductive paste is supplied in the intaglio by using any one of screen mask, metal mask, or drawing device, and therefore the conductive paste can be supplied uniformly in desired positions only. The supplying amount of the conductive paste can be adjusted by repeating printing, so that an optimum amount can be set depending on the pattern. As a result, a fine wiring pattern of thick film can be easily formed, and a ceramic circuit board low in wiring resistance, high in wiring density, and high in dimensional precision of wiring pattern can be obtained.