High voltage spiral resistor
US5053743A · kind A · utility
15Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1990 |
| Grant date | Oct 1, 1991 |
| Priority date | — |
| Expiry date | Apr 13, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D1/43
Abstract
A resistor constituted by a spiral region (4) of a second conductivity type and having a determined doping level, formed on a first surface of a semiconductor substrate (1) of the first conductivity type, having a first terminal on the first surface of the substrate and a second terminal electrically connected to the opposite surface of the substrate through an overdoped region of the same conductivity type as the substrate, more conductive areas (11) being formed at determined places of the spiral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.