Invention Grant
- Patent Title: Error monitoring of a memory device containing embedded error correction
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Application No.: US15401744Application Date: 2017-01-09
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Publication No.: US09747148B2Publication Date: 2017-08-29
- Inventor: Michael B. Healy , Hillery C. Hunter , Charles A. Kilmer , Kyu-hyoun Kim , Warren E. Maule
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Robert J. Shatto
- Main IPC: G11C29/00
- IPC: G11C29/00 ; G06F11/10 ; G06F11/07 ; G06F3/06 ; H03M13/15 ; H03M13/19

Abstract:
Embodiments of the present disclosure provide an approach for monitoring the health and predicting the failure of dynamic random-access memory (DRAM) devices with embedded error-correcting code (ECC). Additional registers are embedded on the DRAM device to store information about the DRAM, such as the number and location of soft errors detected by the device. When the DRAM device detects a soft error, it will update the information stored in the additional registers. A controller compares the information stored in the additional registers to associated thresholds. In some embodiments, after comparing the information to the associated thresholds, the controller may determine whether to schedule a repair action. In other embodiments, the controller may determine whether to alert the memory controller that the DRAM may be failing.
Public/Granted literature
- US20170123882A1 ERROR MONITORING OF A MEMORY DEVICE CONTAINING EMBEDDED ERROR CORRECTION Public/Granted day:2017-05-04
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