发明授权
- 专利标题: Analog memories utilizing ferroelectric capacitors
- 专利标题(中): 使用铁电电容器的模拟存储器
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申请号: US12956845申请日: 2010-11-30
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公开(公告)号: US08760907B2公开(公告)日: 2014-06-24
- 发明人: Joseph T. Evans, Jr. , Calvin B. Ward
- 申请人: Joseph T. Evans, Jr. , Calvin B. Ward
- 申请人地址: US NM Albuquerque
- 专利权人: Radiant Technologies, Inc.
- 当前专利权人: Radiant Technologies, Inc.
- 当前专利权人地址: US NM Albuquerque
- 代理商 Calvin B. Ward
- 主分类号: G11C11/22
- IPC分类号: G11C11/22
摘要:
A ferroelectric memory having a plurality of ferroelectric memory cells, each ferroelectric memory cell including a ferroelectric capacitor is disclosed. The ferroelectric memory includes read and write lines and a plurality of ferroelectric memory cell select buses, one select bus corresponding to each of the ferroelectric memory cells. Each of the ferroelectric memory cells includes first and second gates for connecting the ferroelectric memory cell to the read line and the write line, respectively, in response to signals on the ferroelectric memory cell select bus corresponding to that ferroelectric memory cell. A write circuit causes a charge to be stored in the ferroelectric capacitor of the ferroelectric memory cell currently connected to the write line, the charge having a value determined by a data value having at least three states. A read circuit measures the charge stored in the ferroelectric capacitor of the ferroelectric memory cell currently connected to the read line to generate an output value, the output value corresponding to one of the states.
公开/授权文献
- US08233307B2 Analog memories utilizing ferroelectric capacitors 公开/授权日:2012-07-31
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