发明授权
US07751253B2 Analog sensing of memory cells with a source follower driver in a semiconductor memory device
有权
在半导体存储器件中用源极跟随器驱动器对存储器单元进行模拟感测
- 专利标题: Analog sensing of memory cells with a source follower driver in a semiconductor memory device
- 专利标题(中): 在半导体存储器件中用源极跟随器驱动器对存储器单元进行模拟感测
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申请号: US12049604申请日: 2008-03-17
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公开(公告)号: US07751253B2公开(公告)日: 2010-07-06
- 发明人: Vishal Sarin , Jung-Sheng Hoei , Frankie F. Roohparvar
- 申请人: Vishal Sarin , Jung-Sheng Hoei , Frankie F. Roohparvar
- 申请人地址: US ID Boise
- 专利权人: Micron Technology, Inc.
- 当前专利权人: Micron Technology, Inc.
- 当前专利权人地址: US ID Boise
- 代理机构: Leffert Jay & Polglaze P.A.
- 主分类号: G11C16/06
- IPC分类号: G11C16/06
摘要:
Memory devices, methods, and sample and hold circuits are disclosed, including a memory device that includes a sample and hold circuit coupled to a bit line. One such sample and hold circuit includes a read circuit, a verify circuit, and a reference circuit. The read circuit stores a read threshold voltage that was read from a selected memory cell. The verify circuit stores a target threshold voltage that is compared to the read threshold voltage to generate an inhibit signal when the target and read threshold voltages are substantially equal. The reference circuit stores a reference threshold voltage that can be used to translate the read threshold voltage to compensate for a transistor voltage drop and/or temperature variations.
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