US 2026/0037151 A1 · CROSS-TEMPERATURE RANGE MANAGEMENT IN MEMORY SYSTEMS

Abstract

Methods, systems, and devices for cross-temperature range management in memory systems are described. One or more parameter values defining an expected temperature range may be indicated to and stored at a memory system, where the memory system may define a safe temperature range and one or more additional temperature ranges using the one or more parameter values. After entering the safe temperature range, the memory system may refresh one or more memory cells of one or more memory devices for which write operations were performed outside of the safe temperature range. By defining safe temperatures for operation using an expected operating range, the memory system may reduce a quantity and frequency of refresh operations and may increase a performance and quality of service (QOS), while reducing latency in operations and communications. Further, endurance and device lifetime may be increased by reducing a quantity of refresh operations.

Claims22

Dependent claims

A memory system, comprising:

one or more memory devices;
and
processing circuitry coupled with the one or more memory devices and configured to cause the memory system to:
receive an indication of a set of one or more parameter values that defines a first temperature range associated with operation of the memory system;
store the set of one or more parameter values to one or more registers of the memory system;
determine whether a temperature value of the memory system is within a second temperature range, wherein a portion of the second temperature range is within the first temperature range;
and
refresh one or more memory cells in response to the temperature value of the memory system being within the portion of the second temperature range and in response to data written to the one or more memory cells at a corresponding temperature value that exceeds the second temperature range.

5 more elements

A non-transitory computer-readable medium storing code comprising instructions which, when executed by processing circuitry of a memory system, cause the memory system to:

receive an indication of a set of one or more parameter values that defines a first temperature range associated with operation of the memory system;
store the set of one or more parameter values to one or more registers of the memory system;
determine whether a temperature value of the memory system is within a second temperature range, wherein a portion of the second temperature range is within the first temperature range;
and
refresh one or more memory cells in response to the temperature value of the memory system being within the portion of the second temperature range and in response to data written to the one or more memory cells at a corresponding temperature value that exceeds the second temperature range.

2 more elements

Dependencies are inferred from the claim text.

Cross-temperature range management in memory systems

Life of this patent

Cross-temperature range management in memory systems

Life of this patent

Abstract

Claims22