Electrostatic discharge circuitry with separate power rails
US9368485B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 2014 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Dec 8, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/921
Abstract
In one embodiment, an integrated circuit includes an input-output circuit, first and second electrostatic discharge diode circuits, first and second power clamp circuits and first, second and third voltage rails. The input-output circuit includes an input node that is coupled to an input-output pad. The first electrostatic discharge diode circuit may be coupled between the first and third voltage rails whereas the second electrostatic discharge diode circuit may be coupled between the second and third voltage rails. In addition to that, the first voltage rail may also be coupled to the first power clamp circuit and the second voltage rail may also be coupled to the second power clamp circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.