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:
Dec. 25, 2001
Filed:
Nov. 17, 1999
Applicant:
Inventors:
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 1/00 ;
U.S. Cl.
CPC ...
H05K 1/00 ;
Abstract
A flexible wiring board which exhibits a sufficient flex life under high temperature working conditions. The flexible wiring board comprises an insulation layer provided on both surfaces of a conductor layer, optionally with an adhesive layer provided interposed therebetween, wherein the layers being in direct contact with both surfaces of the conductor layer exhibit an average complex shear modulus value of from 1.0×10,to 4×10,dyn/cm,at a temperature of 60° C. and a frequency of 25 Hz.