Invention Grant
- Patent Title: Variable programming voltage step size control during programming of a memory device
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Application No.: US17502398Application Date: 2021-10-15
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Publication No.: US12125537B2Publication Date: 2024-10-22
- Inventor: Huiwen Xu , Jun Wan , Bo Lei
- Applicant: SanDisk Technologies LLC
- Applicant Address: US TX Addison
- Assignee: SanDisk Technologies LLC
- Current Assignee: SanDisk Technologies LLC
- Current Assignee Address: US TX Addison
- Agency: Dickinson Wright PLLC
- Agent Steven C. Hurles
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C11/56 ; G11C16/10

Abstract:
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.
Public/Granted literature
- US20230124371A1 VARIABLE PROGRAMMING VOLTAGE STEP SIZE CONTROL DURING PROGRAMMING OF A MEMORY DEVICE Public/Granted day:2023-04-20
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