Dynamic Temperature Compensation in Memory Components
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional memory sub-systems face performance and reliability issues due to inadequate temperature compensation, particularly with non-linear program distribution shifts and cross-temperature effects, leading to increased bit error rates.
Innovation Solution
The implementation of a dynamic temperature compensation mechanism within the memory sub-system, which uses in-service data and temperature measurements to adjust gate voltage levels for memory operations, supplementing initial manufacturer compensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional manufacturer temperature compensation is used, then initial temperature compensation is provided, but non-linear program distribution shifts and cross-temperature effects cause increased bit error rates
Solution Approach 1:
The patent implements dynamic temperature compensation by continuously monitoring the memory component's temperature and adjusting the trim values in real-time based on the measured temperature and stored calibration data. This dynamic approach replaces static manufacturer compensation with adaptive compensation that responds to changing temperature conditions, thereby reducing bit error rates caused by non-linear program distribution shifts and cross-temperature effects.
Solution Approach 2:
The system employs feedback mechanisms by measuring the actual temperature of the memory component during operation and using this information to adjust the read and program verify levels. The calibration data stored in the memory component provides a reference for determining appropriate trim values based on temperature, creating a closed-loop system that continuously optimizes compensation accuracy across varying temperature conditions.
2Measurement precision
If dynamic temperature compensation is implemented, then temperature compensation accuracy is improved, but device complexity increases
Solution Approach 1:
The patent performs temperature compensation calibration in advance during the manufacturing process, storing calibration data (such as slope and intercept values) directly in the memory component. This preliminary action eliminates the need for complex real-time calculations during operation, as the system only needs to retrieve and apply the pre-computed trim values based on measured temperature, thereby reducing operational complexity while maintaining high accuracy.
Solution Approach 2:
The memory component is designed to store its own calibration data and perform self-compensation by automatically adjusting its read and program verify levels based on its own temperature measurements. This self-service approach eliminates the need for external compensation circuits or complex controller intervention, simplifying the overall device architecture while achieving accurate temperature compensation.
Data Source
AI summary
A dynamic temperature compensation trim for use in temperature compensating a memory operation on a memory call of a memory component. The dynamic temperature compensation trim is based on a temperature of the memory component and based on in-service data for the memory operation on the memory cell. A register for the memory operation is modified based on the dynamic temperature compensation trim.