Thermal Interface Applique with Conductive Gel
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Solution Overview
Problem
Conventional thermal interfaces, such as those using silicone or liquid phase alloys, are inefficient in transferring heat from electronic components to heatsinks, risking migration and short circuits, while materials like aluminum can be dissolved by these alloys.
Innovation Solution
A thermal interface applique comprising a conductive gel with carbon allotropes in nano-or micro-particle format, surrounded by a containment structure to prevent migration, offering a high thermal coefficient and stable adhesion to various materials for efficient heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional thermal interface materials (silicone or liquid phase alloys) are used, then thermal transfer efficiency is improved, but material migration and short circuit risks occur
Solution Approach 1:
The patent uses a flexible polymer film encapsulated thermal interface material that contains the conductive gel within a sealed structure. This prevents material migration while maintaining thermal contact between the electronic component and heatsink, resolving the contradiction between thermal efficiency and migration prevention.
Solution Approach 2:
The patent creates a composite structure combining a polymer matrix with carbon allotrope particles (graphene, carbon nanotubes, or diamond). This composite provides both high thermal conductivity for efficient heat transfer and structural integrity to prevent migration, simultaneously addressing both requirements.
2Reliability
If liquid phase alloys are used for thermal interface, then thermal conductivity is improved, but dissolution of aluminum heatsink material occurs
Solution Approach 1:
The patent introduces a polymer-based thermal interface material as an intermediary between the electronic component and aluminum heatsink. This mediator provides high thermal conductivity without chemically reacting with or dissolving the aluminum heatsink material, eliminating the harmful dissolution effect while maintaining thermal performance.
3Ease of operation
If silicone-based thermal materials are used, then ease of application is improved, but thermal conductivity is insufficient
Solution Approach 1:
The patent combines silicone polymer matrix with high-performance carbon allotrope particles (graphene, carbon nanotubes, or diamond). This composite maintains the ease of application and flexibility of silicone while dramatically improving thermal conductivity through the superior thermal properties of the carbon particles, resolving the contradiction between ease of use and thermal performance.
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 conductive gel provides a highly efficient thermal coupling with a thermal conductivity of up to 100 W/mK, significantly improving cooling rates and preventing migration, thus enhancing computing or processing power.
Implementation Method 1
the conductive gel is configured to thermally couple a heat source to a heatsink
Implementation Method 2
the adhesive property of the containment structure is configured to adhere at least one of the heat source and the heatsink to the containment structure
Data Source
AI summary
A thermal interface applique and system includes a containment structure and conductive gel. The containment structure has an adhesive property and a first thermal coefficient. The conductive gel is configured to thermally couple a heat source to a heatsink. The adhesive property of the containment structure is configured to adhere at least one of the heat source and the heatsink to the containment structure