Invention Grant
- Patent Title: ESD-robust I/O driver circuits
- Patent Title (中): ESD稳健的I / O驱动电路
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Application No.: US13482423Application Date: 2012-05-29
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Publication No.: US08792219B2Publication Date: 2014-07-29
- Inventor: Da-Wei Lai , Ying-Chang Lin
- Applicant: Da-Wei Lai , Ying-Chang Lin
- Applicant Address: SG Singapore
- Assignee: GlobalFoundries Singapore Pte. Ltd.
- Current Assignee: GlobalFoundries Singapore Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Ditthavong & Steiner, P.C.
- Main IPC: H02H3/22
- IPC: H02H3/22

Abstract:
An ESD-robust I/O driver circuit is disclosed. Embodiments include providing a first NMOS transistor having a first source, a first drain, and a first gate; coupling the first source is coupled to a ground rail, and the first drain to an I/O pad; providing a gate driver control circuit including a second NMOS transistor having a second source, a second drain, and a second gate; and coupling the second drain to the first gate, the second source to the ground rail, wherein the gate driver control circuit provides a ground potential to the first gate during an ESD event occurring from the I/O pad to the ground rail.
Public/Granted literature
- US20130321962A1 ESD-ROBUST I/O DRIVER CIRCUITS Public/Granted day:2013-12-05
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