Adaptive electrostatic discharge (ESD) protection circuit
US8462473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2011 |
| Grant date | Jun 11, 2013 |
| Priority date | — |
| Expiry date | Nov 3, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For adaptive electrostatic discharge (ESD) protection, an integrated circuit device having an adaptive electrostatic discharge (ESD) protection, has an external connection pin to be protected from ESD; an external ground connection pin; an adaptive electrostatic discharge (ESD) protection circuit having: an ESD protection N-metal oxide semiconductor (NMOS) transistor having drain connected to the external connection pin and a source and bulk connected to ground; a resistor coupled between a gate of the NMOS transistor and ground; a first PMOS transistor having a source coupled to a gate of the NMOS transistor and a drain connected to ground; a first capacitor having a first terminal connected to the external connection pin and a second terminal that is coupled with the gate of the NMOS transistor, wherein the first capacitor within the adaptive ESD protection circuit is the only capacitor connected to the external connection pin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.