Invention Grant
- Patent Title: Apparatuses and methods for access based refresh timing
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Application No.: US16886284Application Date: 2020-05-28
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Publication No.: US11532346B2Publication Date: 2022-12-20
- Inventor: Jason M. Brown , Daniel B. Penney
- 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: Dorsey & Whitney LLP
- Main IPC: G11C11/40
- IPC: G11C11/40 ; G11C11/406 ; G11C16/34 ; G11C7/10 ; G06F11/30 ; G11C11/4076 ; G11C7/00

Abstract:
Embodiments of the disclosure are drawn to apparatuses and methods for scheduling targeted refreshes in a memory device. Memory cells in a memory device may be volatile and may need to be periodically refreshed as part of an auto-refresh operation. In addition, certain rows may experience faster degradation, and may need to undergo targeted refresh operations, where a specific targeted refresh address is provided and refreshed. The rate at which targeted refresh operations need to occur may be based on the rate at which memory cells are accessed. The memory device may monitor accesses to a bank of the memory, and may use a count of the accesses to determine if an auto-refresh address or a targeted refresh address will be refreshed.
Public/Granted literature
- US20200294576A1 APPARATUSES AND METHODS FOR ACCESS BASED REFRESH TIMING Public/Granted day:2020-09-17
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