发明公开
EP0703625A3 Deep trench DRAM process on SOI for low leakage DRAM cell
失效
Tiefgraber-DRAM-Prozess auf SOIfürDRAM-Zelle niedrigen Leckstromes
- 专利标题: Deep trench DRAM process on SOI for low leakage DRAM cell
- 专利标题(中): Tiefgraber-DRAM-Prozess auf SOIfürDRAM-Zelle niedrigen Leckstromes
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申请号: EP95114657.0申请日: 1995-09-18
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公开(公告)号: EP0703625A3公开(公告)日: 1999-03-03
- 发明人: Alsmeier, Johann , Stengl, Reinhard Johannes
- 申请人: SIEMENS AKTIENGESELLSCHAFT
- 申请人地址: Wittelsbacherplatz 2 D-80333 München DE
- 专利权人: SIEMENS AKTIENGESELLSCHAFT
- 当前专利权人: SIEMENS AKTIENGESELLSCHAFT
- 当前专利权人地址: Wittelsbacherplatz 2 D-80333 München DE
- 优先权: US313507 19940926
- 主分类号: H01L27/108
- IPC分类号: H01L27/108 ; H01L21/82
摘要:
A deep trench DRAM cell is formed on a silicon on isolator (SOI) substrate, with a buried strap formed by outdiffusion of dopant in associated trench node material, for providing an electrical connection between the trench node and the active area of a MOS transfer gate formed in the substrate adjacent the trench in an uppermost portion of the substrate.
公开/授权文献
- EP0703625B1 Deep trench DRAM process on SOI for low leakage DRAM cell 公开/授权日:2004-06-09
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