发明授权
- 专利标题: Method for manufacturing a semiconductor device
- 专利标题(中): 半导体器件的制造方法
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申请号: US13005694申请日: 2011-01-13
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公开(公告)号: US08313995B2公开(公告)日: 2012-11-20
- 发明人: Martin Poelzl
- 申请人: Martin Poelzl
- 申请人地址: AT Villach
- 专利权人: Infineon Technologies Austria AG
- 当前专利权人: Infineon Technologies Austria AG
- 当前专利权人地址: AT Villach
- 代理机构: Murphy, Bilak & Hamiller, PLLC
- 主分类号: H01L21/8242
- IPC分类号: H01L21/8242 ; H01L21/20
摘要:
A method for forming a semiconductor device is provided. The method includes providing a semiconductor body with a horizontal surface. An epitaxy hard mask is formed on the horizontal surface. An epitaxial region is formed by selective epitaxy on the horizontal surface relative to the epitaxy hard mask so that the epitaxial region is adjusted to the epitaxy hard mask. A vertical trench is formed in the semiconductor body. An insulated field plate is formed in a lower portion of the vertical trench and an insulated gate electrode is formed above the insulated field plate. Further, a method for forming a field-effect semiconductor device is provided.
公开/授权文献
- US20120184095A1 Method for Manufacturing a Semiconductor Device 公开/授权日:2012-07-19
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