Anisotropic thermal conduction element and manufacturing method

Abstract

An anisotropic heat conduction element capable of conducting heat from a heat source having high efficiency in the thickness direction maintaining strength, and a manufacturing method thereof. In order to obtain the above effects, the anisotropic heat conduction element may conduct heat from a heat source, the structure has stacked graphite sheets across the contact surface in the thickness direction of the graphite sheets, and the surroundings of the stacked graphite sheets are coated to form a support portion. The coating process covers the structure of stacked graphite with supporting parts. After the coating process, a cutting process may be performed by cutting along the surface in the stacking direction. After the cutting process, a surface treatment process can be performed on the section.

Description

technical field [0001] The present invention relates to a heat distributor for conducting heat from a device and a method of manufacturing the heat distributor. Background technique [0002] Electronic components are getting smaller and smaller, while cooling needs are getting bigger and bigger. In order to dissipate the heat generated by such electronic components, heat spreaders are used between the electronic components and the heat sink. The heat spreader can be made of solid thermally conductive metal. Solid conductive metals have a limited ability to distribute heat and limited thermal conductivity properties. Graphite sheets including benzene rings are connected by covalent bonds with a stacked crystal structure, and graphite layers are connected by van der Waals forces. Graphite sheets are used as part of the heat transfer element to reduce the hot spots that accompany electronic equipment and electronic devices. The heat conduction element can conduct heat from ...

AI Technical Summary

Problems solved by technology

[0003] As a heat conduction element, close mechanical contact with the heat source is necessary, but because graphite is generally brittle and prone to collapse, there is a concern of damage due to mechanical stress from contact with the heat source and clamping with the mounting part

Graphite can be coated with resin or aluminum or PET on the surface, but the usual problem is that if the thickness of the coated part is large, heat transfer efficiency will be lost

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