Invention Grant
- Patent Title: Lateral transistors and methods with low-voltage-drop shunt to body diode
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Application No.: US16933890Application Date: 2020-07-20
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Publication No.: US11888047B2Publication Date: 2024-01-30
- 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: Patent Law Group
- Agent Brian Ogonowsky
- The original application number of the division: US14694929 2015.04.23
- Main IPC: H01L29/66
- IPC: H01L29/66 ; H01L27/088 ; H01L29/417 ; H01L29/40 ; H01L29/78 ; H01L29/08 ; H01L29/10 ; H01L21/265 ; H01L21/8234 ; H01L29/36 ; H01L29/423 ; H01L29/739

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
- US20210175348A1 Lateral Transistors and Methods with Low-Voltage-Drop Shunt to Body Diode Public/Granted day:2021-06-10
Information query
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