Latch-up robust SCR-based devices
US9130010B2 · kind B2 · utility
3Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 30, 2012 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Mar 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/713
Abstract
An approach for providing a latch-up robust silicon control rectifier (SCR) is disclosed. Embodiments include providing a first N+ region and a first P+ region in a substrate for a SCR; providing first and second n-well regions in the substrate proximate the first N+ and P+ regions; providing a second N+ region in the first n-well region, and a second P+ region in the second n-well region; and coupling the first N+ and P+ regions to a ground rail, the second N+ region to a power rail, and the second P+ region to an I/O pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.