发明授权
- 专利标题: Variable programming voltage step size control during programming of a memory device
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申请号: US17502398申请日: 2021-10-15
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公开(公告)号: US12125537B2公开(公告)日: 2024-10-22
- 发明人: Huiwen Xu , Jun Wan , Bo Lei
- 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: Dickinson Wright PLLC
- 代理商 Steven C. Hurles
- 主分类号: G11C16/04
- IPC分类号: G11C16/04 ; G11C11/56 ; G11C16/10
摘要:
The memory device includes a control circuitry that is communicatively coupled to memory cells are arranged in a plurality of word lines. The control circuitry is configured to perform a first programming pass on a selected word line. The first programming pass includes a plurality of programming loops, each of which includes the application of a programming pulse (Vpgm). The programming pulse voltage is increased between programming loops of the first programming pass by a step size. The step size is a first step size between two programming loops of the first programming pass and is a second step size that is different than the first step size between two other programming loops of the first programming pass. The control circuitry is also configured to perform a second programming pass to further program the memory cells of the selected word line to the plurality of data states.
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