Integrated Cooling Layout for Multi-Stack Memory Heat Dissipation
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Solution Overview
Problem
Multiple-stack memory systems generate excessive heat, which negatively impacts performance and requires improved heat dissipation solutions to maintain functionality and reduce environmental impact.
Innovation Solution
Integrate a cooling unit between stacked memory systems to dissipate heat effectively, reducing the form factor and enhancing heat dissipation properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple-stack memory systems are used to increase memory capacity, then storage capability is improved, but heat generation increases causing performance degradation
Solution Approach 1:
The memory system is divided into multiple independent stacks, each with its own heat dissipation characteristics. The segmentation allows heat to be distributed across multiple smaller units rather than concentrated in a single large block, improving overall thermal management while maintaining high memory capacity
Solution Approach 2:
A thermal interface material is introduced as an intermediary between the memory stacks and the cooling solution. This material facilitates efficient heat transfer from the memory devices to the cooling plates, resolving the contradiction between maintaining high memory capacity and managing heat generation
2Temperature
If cooling units are added to dissipate heat, then temperature control is improved, but device complexity increases
Solution Approach 1:
The cooling plates are merged with the thermal interface material to form an integrated thermal management system. This combination simplifies the overall device structure by eliminating separate cooling components and creating a unified heat dissipation solution that maintains temperature control without excessive complexity
Solution Approach 2:
The thermal interface material serves multiple functions: it provides thermal conduction for heat dissipation, acts as an adhesive to bond memory stacks to cooling plates, and fills gaps to ensure optimal thermal contact. This multi-functionality reduces device complexity by eliminating the need for separate components for each function
3Temperature
If thermal interface material is applied between stacks, then heat dissipation is improved, but manufacturing complexity increases
Solution Approach 1:
The thermal interface material is pre-applied to the cooling plates before memory stacks are mounted. This preliminary action ensures optimal thermal contact is established in advance, improving heat dissipation while simplifying the assembly process by eliminating the need for complex real-time thermal interface adjustments during manufacturing
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
The integrated cooling unit improves the performance and reliability of multiple-stack memory systems by reducing heat-related issues, extending device life, and minimizing environmental waste.
Implementation Method 1
a cooling unit coupled with a bottom memory die of the first stack of memory dies and coupled with a top memory die of the second stack of memory dies
Data Source
AI summary
Methods, systems, and devices for multiple-stack memory system with integrated cooling unit are described. A multiple-stack memory system may include a first memory device that comprises a first logic die and a first stack of memory dies. The multiple-stack memory system may include a second memory device that comprises a second logic die and a second stack of memory dies. A cooling unit of the multiple-stack memory system may be coupled with a bottom memory die of the first stack of memory dies and coupled with a top memory die of the second stack of memory dies.