发明授权
- 专利标题: Trench memory
- 专利标题(中): 沟槽记忆
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申请号: US12023175申请日: 2008-01-31
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公开(公告)号: US07445988B2公开(公告)日: 2008-11-04
- 发明人: Kangguo Cheng , Geng Wang
- 申请人: Kangguo Cheng , Geng Wang
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Ohlandt, Greeley, Ruggiero & Perle, L.L.P.
- 代理商 Steven Capella, Esq.
- 主分类号: H01L21/8242
- IPC分类号: H01L21/8242
摘要:
A trench device and method for fabricating same are provided. The trench device has a collar with a first portion that is doped and a second portion that is undoped. Fabrication of the partially doped collar can be done by deposition of a doped insulator in the trench, removal of a portion of the doped deposition, deposition of an undoped insulator in the trench and removal of a portion of the doped and undoped insulators.
公开/授权文献
- US20080124863A1 Trench Memory 公开/授权日:2008-05-29
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