Device for protection against electrostatic discharges with a distributed trigger circuit
US9947650B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2017 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Apr 26, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D89/819
Abstract
An ESD protection device includes a MOS transistor connected between a first terminal and a second terminal and having a gate region, source/drain region and a well region electrically coupled by a resistive-capacitive circuit configured to control turn on of the MOS transistor in response to an ESD event. The resistive-capacitive circuit has a common part with at least one of the source, gate or drain regions of the MOS transistor and includes a capacitive element and a resistive element. A first electrode of the capacitive element is formed by the resistive element and a second electrode of the capacitive element is formed by at least a portion of a semiconductor film within which the source/drain region is formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.