Patent · US Expired

Flexible wiring board

US6333466A · kind A · utility

16Cited by
5References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 17, 1999
Grant dateDec 25, 2001
Priority date
Expiry dateNov 17, 2019

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05K3/281
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

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.times.10.sup.10 to 4.times.10.sup.10 dyn/cm.sup.2 at a temperature of 60.degree. C. and a frequency of 25 Hz.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.