Novel heat sink and production method thereof

A heat dissipation device, a new type of technology, applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., can solve the problems of LED light attenuation, high cost, heat conduction and heat dissipation performance decline, etc., to achieve good market promotion value, The effect of high thermal conductivity
CN101853822AInactive Publication Date: 2010-10-06苏州热驰光电科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
苏州热驰光电科技有限公司
Publication Date
2010-10-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a novel heat sink prepared with high thermal-conductivity DLC coating. By means of magnetron sputtering and ion beam techniques, a plurality of layers of DLC coating containing chromium are deposited on a metal base material, and thereby the high thermal conductivity is realized. The heat sink comprises a heat-conducting part and fins, wherein the heat-conducting part abuts against a heat source, the fins are connected with the heat-conducting part, and the heat-conducting part consists of the metal base material and the high thermal-conductivity coating deposited on the metal base material. The invention has the following main advantages that: the diamond-like coating (DLC) has high thermal conductivity, the novel heat sink prepared with the DLC coating has excellent heat conductivity and heat dispersion, and the heat-conducting direction is not limited.
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Description

technical field

[0001] The invention relates to a novel heat dissipation device, in particular to a heat dissipation device with a high thermal conductivity coating and a manufacturing method thereof. Background technique

[0002] Now widely used in LED street lamps in streets, bridges, squares and other places, the temperature of the internal light-emitting chip is very high when it emits light. When the light-emitting chip is used below 55°C, the life span can reach 200,000 to 300,000 hours; When used above ℃, because the heat of the cold light source cannot reach the radiator, the temperature of the light-emitting chip is too high, which will lead to a sharp decline in the life of the street lamp. The currently applied heat pipe technology does not have the function of multi-conduction heat conduction because of the directionality of heat conduction, and the heat can only be conducted from bottom to top.

[0003] At present, the heat sink substrates used in general heat ...

Claims

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