ESD protection circuit with active triggering
US7656627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2007 |
| Grant date | Feb 2, 2010 |
| Priority date | — |
| Expiry date | Apr 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
Abstract
An ESD protection circuit is provided. The circuit includes a discharging component, a diode, and an ESD detection circuit. The discharging component is coupled between an input/output pad and a first power line of an IC. The diode is coupled between the input/output pad and a second power line of the IC in a forward direction toward the second power line. The ESD detection circuit includes a capacitor, a resistor, and a triggering component. The capacitor and the resistor are formed in series and coupled between the first power line and the second power line. The triggering component has a positive power end coupled to the input/output pad and a negative power end coupled to the first power line. An input of the triggering component is coupled to a node between the capacitor and the resistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.