Invention Publication
- Patent Title: SINGLE-LEVEL CELL PROGRAM-VERIFY, LATCH-LIMITED DATA RECOVERY
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Application No.: US18128463Application Date: 2023-03-30
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Publication No.: US20230352107A1Publication Date: 2023-11-02
- Inventor: Eric N. Lee , Tomoko Ogura Iwasaki
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Main IPC: G11C29/52
- IPC: G11C29/52 ; G11C16/10 ; G11C16/34

Abstract:
Control logic in a memory device identifies memory cells of a memory array configured as single-level cell (SLC) memory, where the memory cells include two or more memory cells programmed during a program phase and associated with a selected wordline of the memory array. The control logic further causes a program verify voltage to be applied to the selected wordline during a ganged SLC verify operation to be performed concurrently on the memory cells. In response to the memory cells failing to pass ganged SLC verify operation, the control logic further: copies first data, which is associated with a first memory cell, into the data recovery latch; causes a program verify operation to be performed separately on the first memory cell; and in response to the first memory cell reaching a program verify voltage, causes an inhibit of the first memory cell from further programming.
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