Invention Grant
- Patent Title: Imprint management for memory
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Application No.: US17399872Application Date: 2021-08-11
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Publication No.: US11631473B2Publication Date: 2023-04-18
- Inventor: Shashank Bangalore Lakshman , Jonathan D. Harms , Jonathan J. Strand , Sukneet Singh Basuta
- 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: Holland & Hart, LLP
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G11C29/50 ; G11C11/56 ; G11C16/10 ; G11C16/26 ; G11C16/34 ; G11C16/08

Abstract:
Methods, systems, and devices for imprint recovery management for memory systems are described. In some cases, memory cells may become imprinted, which may refer to conditions where a cell becomes predisposed toward storing one logic state over another, resistant to being written to a different logic state, or both. Imprinted memory cells may be recovered using a recovery or repair process that may be initiated according to various conditions, detections, or inferences. In some examples, a system may be configured to perform imprint recovery operations that are scaled or selected according to a characterized severity of imprint, an operational mode, environmental conditions, and other factors. Imprint management techniques may increase the robustness, accuracy, or efficiency with which a memory system, or components thereof, can operate in the presence of conditions associated with memory cell imprinting.
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