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:
Sep. 09, 2003
Filed:
Dec. 20, 1999
Applicant:
Inventors:
Hideya Saito, Matsumoto, JP;
Kogo Endo, Chino, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/16 ;
U.S. Cl.
CPC ...
H05K 1/16 ;
Abstract
A circuit board is manufactured by forming an input wiring , an output wiring , and dummy wiring layer in an IC chip mounting area on a base film having insulation and flexibility without using an adhesive layer, and mounting an IC chip on an intervening anisotropic conductive film of an adhesive resin into which electrically conductive particles are dispersed. The dummy wiring layer is electrically isolated from the input wiring , the output wiring , and IC chip electrodes and , and has a plurality of openings