发明授权
- 专利标题: Semiconductor memory device including ferroelectric capacitor
- 专利标题(中): 半导体存储器件包括铁电电容器
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申请号: US12721245申请日: 2010-03-10
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公开(公告)号: US08482044B2公开(公告)日: 2013-07-09
- 发明人: Takeshi Hamamoto
- 申请人: Takeshi Hamamoto
- 申请人地址: JP Tokyo
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo
- 代理机构: Knobbe, Martens, Olson & Bear, LLP
- 优先权: JP2009-213309 20090915
- 主分类号: H01L21/02
- IPC分类号: H01L21/02
摘要:
An aspect of the present disclosure, there is provided semiconductor memory device including a ferroelectric capacitor and a field effect transistor as a memory cell, the ferroelectric capacitor including a lower electrode connected to one of the pair of the impurity diffusion layers, a bit line formed below the lower electrode, wherein each of the memory cells shares the bit line contact with an adjacent memory cell at one side in the first direction to connect to the bit line, and three of the word lines are formed between the bit line contacts in the first direction.
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