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. 15, 2008
Filed:
Apr. 28, 2005
Applicants:
Toshikazu Harada, Kariya, JP;
Koji Kondo, Toyohashi, JP;
Inventors:
Toshikazu Harada, Kariya, JP;
Koji Kondo, Toyohashi, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 3/30 (2006.01); H05K 1/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi-layer printed circuit board includes an insulation substrate; a surface conductive pattern disposed on a surface of the insulation substrate; and an inner conductive pattern embedded in the insulation substrate. The surface conductive pattern has a surface roughness on an insulation substrate side, the surface roughness of the surface conductive pattern being larger than that of the inner conductive pattern.