发明授权
- 专利标题: Trench memory cell
- 专利标题(中): 沟槽记忆体
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申请号: US292285申请日: 1988-12-30
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公开(公告)号: US4958212A公开(公告)日: 1990-09-18
- 发明人: Clarence W. Teng , William F. Richardson , Robert R. Doering , Ashwin H. Shah , Bing W. Shen , Mark Bordelon
- 申请人: Clarence W. Teng , William F. Richardson , Robert R. Doering , Ashwin H. Shah , Bing W. Shen , Mark Bordelon
- 申请人地址: TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: TX Dallas
- 主分类号: H01L27/108
- IPC分类号: H01L27/108
摘要:
An improved memory cell layout (54) is formed including a trench cell (60) formed in a semiconductor substrate (58). The memory cell layout (54) includes a bitline (56) and a wordline (62) for storing and accessing charge. The charge is stored on a capacitor formed from a conductor (68), an insulating region (70) and a semiconductor substrate (58). Bitline (56) is primarily tangential to a trench cell (60), or may surround the periphery thereof. A wordline (62) overlies trench cell (60) and extends therein, and further may be formed of a width narrower than trench cell (60).
公开/授权文献
- US6078557A Method of using optical compact disc 公开/授权日:2000-06-20