Random electrostatic discharge event indicator
US6118419A · kind A · utility
16Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1998 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Oct 30, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R29/0878
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for detecting random electrostatic discharge events is disclosed in which the electrostatic discharge indicator is "Electric Paper". The "Electric Paper" has a plurality of spheres having one hemisphere of one color and the other hemisphere of another color. The spheres rotate when an electric field is applied to them and are sensitive enough to respond to electrostatic discharge events. The "Electric Paper" may be pre-imaged so that a pattern indicating the state of the paper is visually ascertainable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.