Flexible circuit with electrostatic damage limiting feature
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United States of America Patent
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-
Nov 14, 2006
Grant Date -
Dec 23, 2004
app pub date -
Jul 22, 2004
filing date -
Mar 29, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible circuit incorporating an electrostatic discharge limiting feature, comprising a dielectric substrate selected from polyimide or liquid crystal polymer film having at least one conductive trace coated on at least one surface of the substrate wherein the discharge limiting feature includes a thin conductive polymer coating selectively applied over a at least a portion of the non-critical region of the circuit, said feature reducing the surface resistivity of the circuit to about 10.sup.4 ohms to about 10.sup.8 ohms and having tribocharging of less than about 50 V.
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