Invention Grant
- Patent Title: Read threshold calibration for cross-temperature long, sequential reads
-
Application No.: US17714379Application Date: 2022-04-06
-
Publication No.: US12020751B2Publication Date: 2024-06-25
- Inventor: Eran Sharon , Nika Yanuka , Idan Alrod , Alexander Bazarsky , Evgeny Mekhanik
- Applicant: Western Digital Technologies, Inc.
- Applicant Address: US CA San Jose
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Dickinson Wright PLLC
- Agent Steven C. Hurles
- Main IPC: G11C16/04
- IPC: G11C16/04 ; G11C7/04 ; G11C16/08 ; G11C16/10 ; G11C16/24 ; G11C16/26

Abstract:
A system and method for calibrating read threshold voltages includes performing a plurality of read operations, determining to perform a read level tracking method, and performing the read level tracking method. The determining may be based on a temperature change or a bit error rate (BER). The read level tracking method includes determining the BER of an indicative word line, determining an adjusted read threshold level based on the BER, and adjusting read threshold levels according to the adjusted read threshold level.
Public/Granted literature
- US20230326528A1 READ THRESHOLD CALIBRATION FOR CROSS-TEMPERATURE LONG, SEQUENTIAL READS Public/Granted day:2023-10-12
Information query