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:
Aug. 29, 1995
Filed:
May. 31, 1994
Applicant:
Inventors:
Assignee:
Nippon Mektron, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
174261 ; 174250 ; 361773 ;
Abstract
A flexible circuit wiring board having protruding, closely spaced leads, which are intended to be attached to a circuit device, is fabricated by forming a conductor pattern on a first surface of an insulating substrate, adhereing a protection layer to the conductor pattern and employing a laser to selectively etch away the substrate. The etching process leaves a reinforcing coating of the protective layer on the leads at least in the portions thereof which lie at the boundary of the area from which the substrate has been removed.