发明申请
- 专利标题: Ferroelectric memory and method of operating same
- 专利标题(中): 铁电存储器和操作方法相同
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申请号: US10425257申请日: 2003-04-28
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公开(公告)号: US20050094457A1公开(公告)日: 2005-05-05
- 发明人: Zheng Chen , Vikram Joshi , Narayan Solayappan , Carlos Paz de Araujo , Larry McMillan
- 申请人: Zheng Chen , Vikram Joshi , Narayan Solayappan , Carlos Paz de Araujo , Larry McMillan
- 申请人地址: US CO Colorado Springs
- 专利权人: Symetrix Corporation
- 当前专利权人: Symetrix Corporation
- 当前专利权人地址: US CO Colorado Springs
- 优先权: US09329670 19990610; US09385308 19990830; US09523492 20000310
- 主分类号: G11C11/22
- IPC分类号: G11C11/22 ; H01L27/06 ; H01L27/115 ; H01L29/78 ; G11C7/00
摘要:
A ferroelectric memory includes a group of memory cells, each cell having a ferroelectric memory element, a drive line on which a voltage for writing information to the group of memory cells is placed, and a bit line on which information to be read out of the group of memory cells is placed. The memory is read by placing a voltage less than the coercive voltage of the ferroelectric memory element across a memory element. A preamplifier is connected between the memory cells and the bit line. A set switch is connected between the drive line and the memory cells, and a reset switch is connected to the memory cells in parallel with the preamplifier. Prior to reading, noise from the group of cells is discharged by grounding both electrodes of the ferroelectric memory element.
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