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. 04, 2005
Filed:
Mar. 05, 2002
Applicants:
Yoshiyuki Tonami, Machida, JP;
Mitsunori Hatada, Ishikawa-ken, JP;
Inventors:
Yoshiyuki Tonami, Machida, JP;
Mitsunori Hatada, Ishikawa-ken, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 2144 ;
U.S. Cl.
CPC ...
Abstract
In the production of a high frequency circuit chip in which a wiring pattern is disposed on a substrate having a through-hole, a connecting electrode of the through-hole is formed by filling electrically conductive paste into a perforation and firing it, and the wiring pattern is formed by a lift-off method. Moreover, at least the surface of the substrate for the wiring pattern to be formed thereon is mirror-polished, and thereafter, the wiring pattern is formed on the mirror-polished surface by the lift-off method.