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:
Jun. 12, 2001
Filed:
Apr. 11, 1997
Applicant:
Inventors:
Assignee:
Yamaichi Electronics Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 3/02 ; H05K 3/10 ;
U.S. Cl.
CPC ...
H05K 3/02 ; H05K 3/10 ;
Abstract
An interlayer connection structure in a circuit board characterized in that a local part of a conductive circuit layer disposed at one surface side of an insulative sheet is bent inwardly of the insulative sheet so that an apex of a projectingly bent portion is formed, and the apex of the projectingly bent portion is abutted with another conductive circuit layer disposed at the other surface side of the insulative sheet so that an interlayer connection is established therebetween.