Integrated silicon controlled rectifier (SCR) and a low leakage SCR supply clamp for electrostatic discharge (ESP) protection
US10944257B2 · kind B2 · utility
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46Claims
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Key dates
| Filing date | Apr 13, 2018 |
| Grant date | Mar 9, 2021 |
| Priority date | — |
| Expiry date | Feb 5, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D62/115
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electrostatic discharge (ESD) protection is provided in using a supply clamp circuit using an ESD event actuated SCR device. The SCR device may include an embedded field effect transistor (FET) having an insulated gate that receives a trigger signal from an ESD detection circuit. The SCR device may alternatively include a variable substrate resistor having an insulated gate that receives a trigger signal from an ESD detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.