发明授权
- 专利标题: Method of making a nanotube-based shadow random access memory
- 专利标题(中): 制造基于纳米管的阴影随机存取存储器的方法
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申请号: US12550975申请日: 2009-08-31
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公开(公告)号: US07944735B2公开(公告)日: 2011-05-17
- 发明人: Claude L. Bertin , Thomas Rueckes , Brent M. Segal
- 申请人: Claude L. Bertin , Thomas Rueckes , Brent M. Segal
- 申请人地址: US MA Woburn
- 专利权人: Nantero, Inc.
- 当前专利权人: Nantero, Inc.
- 当前专利权人地址: US MA Woburn
- 代理机构: Wilmer Cutler Pickering Hale and Dorr LLP
- 主分类号: G11C14/00
- IPC分类号: G11C14/00
摘要:
Random access memory including nanotube switching elements. A memory cell includes first and second nanotube switching elements and an electronic memory. Each nanotube switching element includes conductive terminals, a nanotube article and control circuitry capable of controllably form and unform an electrically conductive channel between the conductive terminals. The electronic memory is a volatile storage device capable of storing a logic state in response to electrical stimulus. In certain embodiment the electronic memory has cross-coupled first and second inverters in electrical communication with the first and second nanotube switching elements. The cell can operate as a normal electronic memory, or can operate in a shadow memory or store mode (e.g., when power is interrupted) to transfer the electronic memory state to the nanotube switching elements. The device may later be operated in a recall mode where the state of the nanotube switching elements may be transferred to the electronic memory.
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