Invention Grant
US08728890B2 Fabrication of MOS device with integrated Schottky diode in active region contact trench
有权
在有源区接触沟中制作集成肖特基二极管的MOS器件
- Patent Title: Fabrication of MOS device with integrated Schottky diode in active region contact trench
- Patent Title (中): 在有源区接触沟中制作集成肖特基二极管的MOS器件
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Application No.: US13870649Application Date: 2013-04-25
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Publication No.: US08728890B2Publication Date: 2014-05-20
- Inventor: Anup Bhalla , Xiaobin Wang , Ji Pan , Sung-Po Wei
- Applicant: Alpha & Omega Semiconductor Limited
- Applicant Address: BM
- Assignee: Alpha & Omega Semiconductor Limited
- Current Assignee: Alpha & Omega Semiconductor Limited
- Current Assignee Address: BM
- Agency: Van Pelt, Yi & James LLP
- Main IPC: H01L21/336
- IPC: H01L21/336

Abstract:
Fabricating a semiconductor device includes: forming a gate trench in an epitaxial layer overlaying a semiconductor substrate; depositing gate material in the gate trench; forming a body in the epitaxial layer, having a body top surface and a body bottom surface; forming a source; forming an active region contact trench that extends through the source and the body into the drain, wherein bottom surface of the active region contact trench is formed to include at least a portion that is shallower than the body bottom surface; and disposing a contact electrode within the active region contact trench.
Public/Granted literature
- US20130280870A1 FABRICATION OF MOS DEVICE WITH INTEGRATED SCHOTTKY DIODE IN ACTIVE REGION CONTACT TRENCH Public/Granted day:2013-10-24
Information query
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