Invention Publication
- Patent Title: QUICK PASS WRITE PROGRAMMING TECHNIQUES IN A MEMORY DEVICE
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Application No.: US17701365Application Date: 2022-03-22
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Publication No.: US20230307072A1Publication Date: 2023-09-28
- Inventor: Muhammad Masuduzzaman , Deepanshu Dutta , Gerrit Jan Hemink
- Applicant: SanDisk Technologies LLC
- Applicant Address: US TX Addison
- Assignee: SanDisk Technologies LLC
- Current Assignee: SanDisk Technologies LLC
- Current Assignee Address: US TX Addison
- Main IPC: G11C16/34
- IPC: G11C16/34 ; G11C16/04 ; G11C16/10

Abstract:
The memory device includes a controller that is configured to program the memory cells of a selected word line in a plurality of program-verify iterations. During a verify portion at least one of the program-verify iterations, the controller determines a threshold voltage of at least one memory cell relative to a first verify low voltage VL1, a second verify low voltage VL2, and a verify high voltage VH associated with a data state being programmed. The controller also maintains a count of program-verify iterations since the at least one memory cell passed a verify high voltage of a previously programmed data state or discharges a sense node through a channel including the at least one memory cell and compares a discharge time to predetermined sense times associated with the first and second verify low voltages and with the verify high voltage.
Public/Granted literature
- US11887677B2 Quick pass write programming techniques in a memory device Public/Granted day:2024-01-30
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