Protection device for handling energy transients
US7279773B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Mar 15, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/13091
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A protection device for handling energy transients includes a plurality of basic unit Zener diodes connected in series to achieve a desired breakdown voltage. Each of the basic unit Zener diodes is formed in a first-type substrate. Each of the basic unit Zener diodes comprises a second-type well formed in the substrate, a second-type Zener region formed in the second-type well and a first-type+ region formed over the second-type Zener region between a first and second second-type+ region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.