发明授权
- 专利标题: SiC MOSFETs and self-aligned fabrication methods thereof
- 专利标题(中): SiC MOSFET及其自对准制造方法
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申请号: US12483469申请日: 2009-06-12
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公开(公告)号: US08377812B2公开(公告)日: 2013-02-19
- 发明人: Kevin Sean Matocha , Gregory Keith Dudoff , William Gregg Hawkins , Zachary Matthew Stum , Stephen Daley Arthur , Dale Marius Brown
- 申请人: Kevin Sean Matocha , Gregory Keith Dudoff , William Gregg Hawkins , Zachary Matthew Stum , Stephen Daley Arthur , Dale Marius Brown
- 申请人地址: US NY Niskayuna
- 专利权人: General Electric Company
- 当前专利权人: General Electric Company
- 当前专利权人地址: US NY Niskayuna
- 代理商 Penny A. Clark
- 主分类号: H01L21/28
- IPC分类号: H01L21/28
摘要:
The present invention provides a method of fabricating a metal oxide semiconductor field effect transistor. The method includes the steps of forming a source region on a silicon carbide layer and annealing the source region. A gate oxide layer is formed on the source region and the silicon carbide layer. The method further includes providing a gate electrode on the gate oxide layer and disposing a dielectric layer on the gate electrode and the gate oxide layer. The method further includes etching a portion of the dielectric layer and a portion of the gate oxide layer to form sidewalls on the gate electrode. A metal layer is disposed on the gate electrode, the sidewalls and the source region. The method further includes forming a gate contact and a source contact by subjecting the metal layer to a temperature of at least about 800° C. The gate contact and the source contact comprise a metal silicide. The distance between the gate contact and the source contact is less than about 0.6 μm. A vertical SiC MOSFET is also provided.
公开/授权文献
- US20090242901A1 SiC MOSFETS AND SELF-ALIGNED FABRICATION METHODS THEREOF 公开/授权日:2009-10-01
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