Invention Grant
- Patent Title: Memory system and method for reducing read disturb errors
-
Application No.: US14675107Application Date: 2015-03-31
-
Publication No.: US10014060B2Publication Date: 2018-07-03
- Inventor: Daniel E. Tuers , Abhijeet Manohar , Nicholas Thomas , Jonathan Hsu
- Applicant: SanDisk Technologies Inc.
- Applicant Address: US TX Plano
- Assignee: SanDisk Technologies LLC
- Current Assignee: SanDisk Technologies LLC
- Current Assignee Address: US TX Plano
- Agency: Brinks Gilson & Lione
- Priority: IN310/MUM/2015 20150130
- Main IPC: G11C16/34
- IPC: G11C16/34 ; G11C11/56 ; G11C16/26

Abstract:
A memory system and method for reducing read disturb errors are disclosed. In one embodiment, a memory system is provided comprising a plurality of blocks of memory and a controller. The controller is configured to detect a read disturb error in a block, identify data that caused the read disturb error, and move the data that caused the read disturb error to a block with a higher read endurance. This can be done by assigning read counters to blocks to determine frequently-read data, and storing that data in a separate block until it is less frequently read and will likely not cause additional read disturb errors.
Public/Granted literature
- US20160225461A1 Memory System and Method for Reducing Read Disturb Errors Public/Granted day:2016-08-04
Information query