Invention Grant
- Patent Title: Active ESD clamp deactivation
-
Application No.: US15890102Application Date: 2018-02-06
-
Publication No.: US10971488B2Publication Date: 2021-04-06
- Inventor: Ulrich Glaser , Thorsten Hinderer
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: H02H9/00
- IPC: H02H9/00 ; H01L27/02 ; H01L23/60 ; H02H9/04

Abstract:
A circuit includes electrostatic discharge (ESD) protection circuitry, triggering circuitry, transient detection circuitry, and deactivation circuitry. The ESD protection circuitry is coupled between a first rail and a second rail. The triggering circuitry is configured to generate an ESD activation signal when a voltage across the first rail and the second rail exceeds a voltage threshold. The ESD protection circuitry is configured to activate based on the ESD activation signal. The transient detection circuitry is configured to generate a deactivation signal when the voltage across the first rail and the second rail comprises a voltage change over time that is less than a transient threshold. The deactivation circuitry is configured to deactivate the triggering circuitry based on the deactivation signal.
Public/Granted literature
- US20190244951A1 ACTIVE ESD CLAMP DEACTIVATION Public/Granted day:2019-08-08
Information query