- 专利标题: Source line voltage control for NAND memory
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申请号: US16908467申请日: 2020-06-22
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公开(公告)号: US11139022B1公开(公告)日: 2021-10-05
- 发明人: Kou Tei , Ohwon Kwon , Jongyeon Kim , Chia-Kai Chou , Yuedan Li
- 申请人: SanDisk Technologies LLC
- 申请人地址: US TX Addison
- 专利权人: SanDisk Technologies LLC
- 当前专利权人: SanDisk Technologies LLC
- 当前专利权人地址: US TX Addison
- 代理机构: Vierra Magen Marcus LLP
- 主分类号: G11C7/02
- IPC分类号: G11C7/02 ; G11C11/4091 ; G11C11/4074 ; G11C5/02 ; G11C11/4096 ; G11C11/4076
摘要:
An example of an apparatus includes a plurality of memory cells arranged in a plurality of NAND strings that are connected to a source line and a control circuit connected to the source line. The control circuit is configured to provide a first current to the source line to pre-charge the source line to a target voltage for sensing data states of the plurality of memory cells and provide a second current to the source line to return the source line to the target voltage in a recovery period between sensing data states. The control circuit is configured to provide the second current at any one of a plurality of current levels.
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