Patent · US Active

Electrostatic discharge protection circuit

US11557896B1 · kind B1 · utility

0Cited by

5References

13Claims

0Family size

Assignee

UNITED MICROELECTRONICS CORP. · TW

Inventors

Nai Sheng Wu · Taichung, TW
Chao-Lung Wang · Taichung, TW
Chia-Lung Lin · Xihu, TW

Key dates

Filing date	Aug 24, 2021
Grant date	Jan 17, 2023
Priority date	—
Expiry date	Aug 24, 2041

Classification

Technology area (CPC H)Electricity
CPC primaryH10D89/60
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

Provided is an electrostatic discharge protection circuit, including a first resistor, a first transistor, a second resistor, and a second transistor. The first resistor has a first end coupled to a first power rail. The first transistor has a first end coupled to the first power rail, and a control end of the first transistor is coupled to a second end of the first resistor. The second resistor is coupled between a second end of the first transistor and a second power rail. The second transistor has a first end coupled to the first power rail, a control end of the second transistor is coupled to the second end of the first transistor, and a second end of the second transistor is coupled to the second power rail.

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