Invention Grant
- Patent Title: Distributed compaction of logical states to reduce program time
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Application No.: US17247435Application Date: 2020-12-10
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Publication No.: US11488677B2Publication Date: 2022-11-01
- Inventor: Kalyan Chakravarthy Kavalipurapu , George Matamis , Yingda Dong , Chang H. Siau
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Lowenstein Sandler LLP
- Main IPC: G11C16/10
- IPC: G11C16/10 ; G11C16/34 ; G11C16/26 ; G11C16/30

Abstract:
A memory device includes a memory array of memory cells and control logic, operatively coupled with the memory array. The control logic is to perform operations, which include causing the memory cells to be programmed with an initial voltage distribution representing multiple logical states; causing the memory cells to be programmed with a subsequent voltage distribution representing a subset of the multiple logical states at a higher voltage than that of the initial voltage distribution, wherein the subset of the multiple logical states is compacted above a program verify voltage level for the subsequent voltage distribution; and causing a first program verify operation of the subsequent voltage distribution to be performed on the memory cells to verify one or more voltage levels of the subsequent voltage distribution.
Public/Granted literature
- US20220189570A1 DISTRIBUTED COMPACTION OF LOGICAL STATES TO REDUCE PROGRAM TIME Public/Granted day:2022-06-16
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