Flexible circuit with electrostatic damage limiting feature
US6815620B2 · kind B2 · utility
2Cited by
35References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2203/1545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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 104 ohms to about 108 ohms and having tribocharging of less than about 50 V.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.