Circuit board and display device using the same and electronic equipment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 9, 2003
Grant Date -
N/A
app pub date -
Dec 20, 1999
filing date -
Dec 21, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A circuit board is manufactured by forming an input wiring 420a, an output wiring 420b, and dummy wiring layer 422 in an IC chip mounting area on a base film 410 having insulation and flexibility without using an adhesive layer, and mounting an IC chip 450 on an intervening anisotropic conductive film of an adhesive resin 19 into which electrically conductive particles 21 are dispersed. The dummy wiring layer 422 is electrically isolated from the input wiring 420a, the output wiring 420b, and IC chip electrodes 450a and 450b, and has a plurality of openings 422a.
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