Memory IC Thermal Regulation via On-Chip Heating
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Solution Overview
Problem
Memories used in electronic devices often fail to function properly at low temperatures, necessitating systems and methods to extend their thermal operating range.
Innovation Solution
Integration of thermal sensors and heating elements within memory ICs to regulate temperature, activating heating when necessary to maintain a predefined threshold, thereby extending the thermal operating range and reducing read errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heating elements are integrated into memory ICs to maintain minimum temperature, then the thermal operating range is extended and reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The memory IC incorporates self-heating capability through integrated heating elements that automatically activate when temperature drops below a threshold, detected by on-chip thermal sensors. The system monitors its own temperature and regulates heating without external intervention, enabling autonomous thermal management while maintaining reliability across extended operating ranges.
Solution Approach 2:
The thermal regulation circuit uses feedback from thermal sensors to control heating elements. When the sensor detects temperature below the threshold, it activates the heating element; when the threshold is reached, heating stops. This closed-loop feedback mechanism manages complexity through intelligent control rather than continuous operation.
2Reliability
If heating elements are activated to maintain minimum temperature, then read errors are reduced, but power consumption increases
Solution Approach 1:
Instead of continuous heating, the system employs periodic or on-demand heating only when temperature drops below the threshold and read errors are detected. The heating element activates intermittently based on actual thermal conditions and error rates, reducing overall power consumption while maintaining reliability during critical low-temperature operations.
Solution Approach 2:
The system monitors its own performance metrics including read error rates and automatically determines when heating is needed. This self-diagnostic capability allows the system to activate heating only when necessary to correct errors, avoiding unnecessary power consumption during normal operation.
3Adaptability or versatility
If thermal regulation circuit is always enabled, then thermal operating range is extended, but power consumption increases
Solution Approach 1:
The thermal regulation circuit transitions from static always-on operation to dynamic conditional operation. The circuit is enabled only when temperature sensors detect conditions below the threshold or when read errors indicate thermal issues. This dynamic activation adapts the system's thermal management capability to actual operating conditions, extending the effective thermal range when needed while minimizing power consumption during normal operation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively extends the lower thermal operating range of non-volatile memories, improving reliability and robustness, especially in low power and low temperature applications, by selectively employing on-chip heating elements only during error conditions or when power is available.
Implementation Method 1
a heating element coupled to the thermal sensor and adapted to heat the memory IC in response to a signal from the thermal sensor
Data Source
AI summary
Systems, methods, and apparatus are provided for thermal regulation of a non-volatile memory IC. The systems and apparatus may include a thermal sensor on a memory IC; and a heating element coupled to the thermal sensor and adapted to heat the memory IC in response to a signal from the thermal sensor. The methods may include sensing a temperature of a memory IC using an integrated thermal sensor on the memory IC and heating the memory IC, using an integrated heating element operatively coupled to the thermal sensor, if the sensed temperature is below a threshold temperature.