Patent · US Active

Stacked clamps electrostatic discharge protection device

US11211791B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

SOFICS BVBA · BE

Inventors

Sven Van Wijmeersch · Gistel, BE
Stefaan Verleye · Gistel, BE
Benjamin Van Camp · Brugge, BE

Key dates

Filing date	Aug 5, 2020
Grant date	Dec 28, 2021
Priority date	—
Expiry date	Aug 5, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH02H9/045
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrostatic discharge (ESD) protection device including a stack of ESD clamps, a trigger circuit, and a transistor. The trigger circuit may respond to an ESD event by conducting current, which may cause the transistor to turn on. A combination of the trigger circuit conducting current and the transistor turning on may trigger the ESD clamps into a conducting state to shunt current from a first node to a second node.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.