Invention Grant
- Patent Title: Electrostatic protection device for semiconductor circuit
- Patent Title (中): 半导体电路用静电保护装置
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Application No.: US11448299Application Date: 2006-06-07
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Publication No.: US07808046B2Publication Date: 2010-10-05
- Inventor: Yoon Sung Lee , Kook Whee Kwak
- Applicant: Yoon Sung Lee , Kook Whee Kwak
- Applicant Address: KR Kyoungki-do
- Assignee: Hynix Semiconductor Inc.
- Current Assignee: Hynix Semiconductor Inc.
- Current Assignee Address: KR Kyoungki-do
- Agency: Ladas & Parry LLP
- Priority: KR10-2005-0050098 20050611
- Main IPC: H01L23/62
- IPC: H01L23/62

Abstract:
The electrostatic protection device includes a semiconductor substrate having a well formed therein. At least two sets of transistor fingers, for example the NMOS type, are spaced apart from each other. Each set of the MOS fingers includes multiple gates arranged in parallel to each other in one direction, and sources and drains alternately arranged at both sides of the gates in the semiconductor substrate. A well pickup surrounding every set of the transistor fingers and extending between any two set of the fingers is formed. Metal wires are connected to at least two portions of each of the drains and are also connected to an input/output pad to which Electrostatic Discharge (ESD) excessive current is introduced.
Public/Granted literature
- US20060278931A1 Electrostatic protection device for semiconductor circuit Public/Granted day:2006-12-14
Information query
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