Memory Element Temperature Management via Burst Refresh

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Solution Overview

Problem

Memory elements in information handling systems face data integrity issues due to temperature fluctuations, where sub-zero conditions cause signal velocity changes, leading to internal race conditions and incorrect transactions.

Innovation Solution

A method for managing memory element temperatures by identifying a lower temperature boundary, performing repeated burst refresh operations if below this boundary, and resetting voltage to achieve an optimal operating temperature for normal boot.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If memory elements operate at sub-zero temperatures, then energy efficiency improves due to lower resistance, but data integrity deteriorates due to signal velocity variations and race conditions

Engineering Contradiction:
Improveenergy efficiencyVSAvoiddata integrity
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The system performs preliminary temperature assessment during boot-up before normal operations begin. If sub-zero conditions are detected, the system proactively executes warmup operations (burst refreshes) to raise the temperature to the optimal range (0°C to 60°C) before any data operations occur, preventing race conditions and signal integrity issues from occurring in the first place

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements periodic burst refresh operations at the memory elements to generate heat and maintain temperature within the optimal operating range. These periodic operations serve dual purposes: refreshing memory data and warming up the memory elements when operating below the lower temperature boundary, thereby maintaining both data integrity and energy efficiency

Inventive Principle:
Principle #19Periodic action

2Temperature

If repeated burst refresh operations are performed to warm up memory elements, then temperature increases to optimal range, but energy consumption increases

Engineering Contradiction:
Improvememory element temperatureVSAvoidenergy consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The memory elements serve their own dual purpose: they store data and simultaneously generate heat through normal refresh operations. The burst refresh operations utilize the memory elements' inherent ability to generate heat during operation, converting a necessary function (data refresh) into a beneficial side effect (warming up), thereby reducing the need for separate heating mechanisms and minimizing additional energy consumption

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system dynamically adjusts operational parameters based on temperature conditions. When the memory is below the lower temperature boundary, burst refresh operations are executed at higher frequency to generate heat. Once the temperature reaches the optimal range (0°C to 60°C), the system transitions to normal refresh operations, thereby optimizing the balance between temperature maintenance and energy consumption

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If memory elements operate beyond typical temperature ranges, then operational versatility improves, but reliability deteriorates due to incorrect transactions

Engineering Contradiction:
Improveoperational versatilityVSAvoidtransaction accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system implements dynamic temperature management that adapts operations based on real-time temperature conditions. During boot-up, the system assesses the temperature and dynamically adjusts the refresh strategy: executing burst refreshes when cold, normal operations when warm. This dynamic adaptation allows the memory system to operate reliably across a wide temperature range (from sub-zero to high temperatures), converting a static limitation into a flexible capability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates temperature sensing and feedback mechanisms to monitor memory element temperature continuously. Based on this feedback, the system automatically adjusts operational parameters: if temperature is below the lower boundary, burst refreshes are triggered; if within the optimal range, normal operations proceed; if above the upper boundary, operations are modified. This closed-loop feedback system enables reliable operation across extended temperature ranges by continuously adapting to thermal conditions

Inventive Principle:
Principle #23Feedback

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

Enables reliable data storage and operation of memory elements beyond typical temperature ranges by self-regulating temperature through energy consumption and heat generation, ensuring data integrity.

Implementation Method 1

performing a series of repeated burst refresh operations at the memory element... performing a normal boot of the memory element

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS11600358B2Temperature management of memory elements of an information handling system
Publication Date: 2023.03.07 DELL PROD LP
  • US11600358B2 patent drawing
  • US11600358B2 patent drawing
  • US11600358B2 patent drawing

AI summary

Managing a temperature of a memory element of an information handling system, the method comprising: identifying a lower temperature boundary of the memory element; determining an initial temperature of the memory element; determining whether the initial temperature is less than the lower temperature boundary; in response to determining that the initial temperature is less than the lower temperature boundary: performing a series of repeated burst refresh operations at the memory element; after performing the series of repeated burst refreshes operations, determining an updated temperature of memory element; determining whether the updated temperature is less than the lower temperature boundary; and in response to determining that the updated temperature is greater than the lower temperature boundary, performing a normal boot of the memory element.