Electrostatic discharge protection solutions
US9882377B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Aug 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/611
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrostatic discharge protection circuits and methods for protecting a core circuit from an electrostatic discharge event. The protection circuit may include a first anti-parallel diode pair including a first terminal coupled to an input/output pad, and a second anti-parallel diode pair including a second terminal coupled to a negative power supply voltage. The second anti-parallel diode pair is coupled in series with the first anti-parallel diode pair at a node. An offset pad is coupled to the node. The offset pad is configured to receive a first signal that is a duplicate of a second signal that is received at the input/output pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.