Invention Grant
- Patent Title: Electrostatic discharge (ESD) robust transistors and related methods
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Application No.: US14852912Application Date: 2015-09-14
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Publication No.: US10692853B2Publication Date: 2020-06-23
- Inventor: Shuji Fujiwara , Richard Scott Burton
- Applicant: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Applicant Address: US AZ Phoenix
- Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
- Current Assignee Address: US AZ Phoenix
- Agency: Adam R. Stephenson, Ltd.
- Main IPC: H01L27/02
- IPC: H01L27/02 ; H01L29/06 ; H01L29/78 ; H01L29/808 ; H01L23/60

Abstract:
An electrostatic discharge robust semiconductor transistor (transistor) includes a semiconductor substrate of a first conductivity type, a substrate contact region of the first conductivity type coupled with the semiconductor substrate, a source region of a second conductivity type, a channel region of the second conductivity type, a gate region of the first conductivity type, a drain region having a first drain region of the first conductivity type and a second drain region of the second conductivity type, and an electrical conductor coupled over the second drain region and a portion of the first drain region. A portion of the first drain region not covered by the electrical conductor forms a resistive electrical ballast region configured to protect the transistor from electrostatic discharge (ESD) induced voltage pulses. In implementations the transistor includes a silicon controlled rectifier (SCR) junction field effect transistor (SCR JFET) or a laterally diffused metal-oxide semiconductor (SCR LDMOS).
Public/Granted literature
- US20170077083A1 ELECTROSTATIC DISCHARGE (ESD) ROBUST TRANSISTORS AND RELATED METHODS Public/Granted day:2017-03-16
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