Search International and National Patent Collections

1. (WO2018119569) DYNAMICALLY TRIGGERED ELECTROSTATIC DISCHARGE CELL

Pub. No.:    WO/2018/119569    International Application No.:    PCT/CN2016/112088
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Tue Dec 27 00:59:59 CET 2016
IPC: H01L 23/60
Applicants: TEXAS INSTRUMENTS INCORPORATED
TEXAS INSTRUMENTS JAPAN LIMITED
Inventors: GALLERANO, Antonio
DAI, Xianzhi
Title: DYNAMICALLY TRIGGERED ELECTROSTATIC DISCHARGE CELL
Abstract:
An electrostatic discharge (ESD) protection circuit (110) includes an active shunt transistor (125), a first pull-down transistor (204), and a second pull-down transistor (206). The active shunt transistor (125) is coupled between a first I/O pad 52a and a reference voltage. The first pull-down transistor (204) is connected to the reference voltage. The second pull-down transistor (206) is connected to the first pull-down transistor (204) and the first I/O pad 52a. The first pull-down transistor (204) and the second pull-down transistor (206) are in separate isolation tanks of an isolation deep n-well (220).