Invention Grant
US07863675B2 MOSFET using gate work function engineering for switching applications
有权
MOSFET采用门极功能工程用于开关应用
- Patent Title: MOSFET using gate work function engineering for switching applications
- Patent Title (中): MOSFET采用门极功能工程用于开关应用
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Application No.: US11999167Application Date: 2008-03-22
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Publication No.: US07863675B2Publication Date: 2011-01-04
- Inventor: Anup Bhalla , Sik K. Lui
- Applicant: Anup Bhalla , Sik K. Lui
- Applicant Address: BM
- Assignee: Alpha & Omega Semiconductor, Ltd.
- Current Assignee: Alpha & Omega Semiconductor, Ltd.
- Current Assignee Address: BM
- Agent Bo-In Lin
- Main IPC: H01L29/76
- IPC: H01L29/76 ; H01L21/336

Abstract:
This invention discloses a new MOSFET device. The MOSFET device has an improved operation characteristic achieved by manufacturing a MOSFET with a higher gate work function by implementing a P-doped gate in an N-MOSFET device. The P-type gate increases the threshold voltage and shifts the C-Vds characteristics. The reduced Cgd thus achieves the purpose of suppressing the shoot through and resolve the difficulties discussed above. Unlike the conventional techniques, the reduction of the capacitance Cgd is achieved without requiring complicated fabrication processes and control of the recess electrode.
Public/Granted literature
- US20080173956A1 MOSFET using gate work function engineering for switching applications Public/Granted day:2008-07-24
Information query
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