Invention Grant
- Patent Title: Trench transistors and methods with low-voltage-drop shunt to body diode
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Application No.: US15809863Application Date: 2017-11-10
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Publication No.: US10128353B2Publication Date: 2018-11-13
- Inventor: Mohamed N. Darwish , Jun Zeng , Richard A. Blanchard
- Applicant: MaxPower Semiconductor Inc.
- Applicant Address: US CA San Jose
- Assignee: MaxPower Semiconductor Inc.
- Current Assignee: MaxPower Semiconductor Inc.
- Current Assignee Address: US CA San Jose
- Agency: Groover & Associates PLLC
- Agent Robert O. Groover, III; Gwendolyn G. Corcoran
- Main IPC: H01L27/088
- IPC: H01L27/088 ; H01L29/66 ; H01L29/417 ; H01L29/78 ; H01L29/40 ; H01L29/10 ; H01L21/265 ; H01L21/8234 ; H01L29/16 ; H01L29/36 ; H01L29/739 ; H01L29/423 ; H01L29/06 ; H01L29/08

Abstract:
Methods and systems for power semiconductor devices integrating multiple trench transistors on a single chip. Multiple power transistors (or active regions) are paralleled, but one transistor has a lower threshold voltage. This reduces the voltage drop when the transistor is forward-biased. In an alternative embodiment, the power device with lower threshold voltage is simply connected as a depletion diode, to thereby shunt the body diodes of the active transistors, without affecting turn-on and ON-state behavior.
Public/Granted literature
- US20180138293A1 TRENCH TRANSISTORS AND METHODS WITH LOW-VOLTAGE-DROP SHUNT TO BODY DIODE Public/Granted day:2018-05-17
Information query
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