Invention Grant
- Patent Title: Robust semiconductor power devices with design to protect transistor cells with slower switching speed
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Application No.: US12074327Application Date: 2008-03-03
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Publication No.: US08946942B2Publication Date: 2015-02-03
- Inventor: Sik K. Lui , Anup Bhalla
- Applicant: Sik K. Lui , Anup Bhalla
- Applicant Address: US CA Sunnyvale
- Assignee: Alpha and Omega Semiconductor Incorporated
- Current Assignee: Alpha and Omega Semiconductor Incorporated
- Current Assignee Address: US CA Sunnyvale
- Agent Bo-In Lin
- Main IPC: H01H47/00
- IPC: H01H47/00 ; H03K17/16 ; H01L29/06 ; H01L29/08 ; H01L29/78
Abstract:
This invention discloses a power switch that includes a fast-switch semiconductor power device and a slow-switch semiconductor power device controllable to turn on and off a current transmitting therethrough. The slow-switch semiconductor power device further includes a ballasting resistor for increasing a device robustness of the slow switch semiconductor power device. In an exemplary embodiment, the fast-switch semiconductor power device includes a fast switch metal oxide semiconductor field effect transistor (MOSFET) and the slow-switch semiconductor power device includes a slow switch MOSFET wherein the slow switch MOSFET further includes a source ballasting resistor.
Public/Granted literature
- US20090218890A1 Robust semiconductor power devices with design to protect transistor cells with slower switching speed Public/Granted day:2009-09-03
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