Invention Grant
- Patent Title: Lateral transistors with low-voltage-drop shunt to body diode
- Patent Title (中): 具有低压降分流到体二极管的侧向晶体管
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Application No.: US13758703Application Date: 2013-02-04
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Publication No.: US09048118B2Publication Date: 2015-06-02
- 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 Gwendolyn S.S. Groover; Robert O. Groover, III
- Main IPC: H01L29/76
- IPC: H01L29/76 ; H01L29/94 ; H01L31/062 ; H01L31/113 ; H01L31/119 ; H01L27/088 ; H01L29/417 ; H01L29/739 ; H01L29/78 ; H01L29/10 ; H01L29/66 ; H01L29/40 ; H01L29/423 ; H01L29/06 ; H01L29/08

Abstract:
Methods and systems for power semiconductor devices integrating multiple quasi-vertical 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
- US20140042525A1 LATERAL TRANSISTORS AND METHODS WITH LOW-VOLTAGE-DROP SHUNT TO BODY DIODE Public/Granted day:2014-02-13
Information query
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