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Title:
DYNAMICALLY TRIGGERED ELECTROSTATIC DISCHARGE CELL
Document Type and Number:
WIPO Patent Application WO/2018/119569
Kind Code:
A1
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).

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Inventors:
GALLERANO ANTONIO (IT)
DAI XIANZHI (CN)
Application Number:
PCT/CN2016/112088
Publication Date:
July 05, 2018
Filing Date:
December 26, 2016
Export Citation:
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Assignee:
TEXAS INSTRUMENTS INC (US)
TEXAS INSTRUMENTS JAPAN LTD (JP)
International Classes:
H01L23/60
Foreign References:
CN103715672A2014-04-09
US20020181177A12002-12-05
CN1234612A1999-11-10
CN1763945A2006-04-26
US20020122280A12002-09-05
US5932918A1999-08-03
Attorney, Agent or Firm:
JEEKAI & PARTNERS (CN)
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