隨著元件性能的提昇，以及市場對其產品要求趨向輕薄短小的趨勢，造成元件的發熱密度不斷增加，因此，在有限的散熱空間中，熱的問題已成為技術發展的瓶頸。傳統的散熱方式如散熱片及風扇等，沒有辦法維持電子元件在一個穩定的溫度狀態下，因此體積小、反應快、無污染、且同時可以穩定控溫的熱電致冷器之應用逐漸受到重視。石油、煤、瓦斯等能源終有耗盡的一天，且現今對低汙染的環保訴求，而熱電材料具備了環保、能源科技的優點，因此因應而生，經由熱電的工作原理可將廢熱轉換成可用電能，增加廢能利用的機會。此篇文章主要是藉由不同幾何及尺寸的熱電接腳設計去探討熱電元件的效能，同時分析接觸電阻和空氣熱傳導部分對熱電元件效能的影響。

Thermal dissipation problem has become an issue as the size of products shrunk down. In the limited space, the performance of signal transmission in high density circuitry can be improved under current development. However, more and more heat was generated by itself, and which becomes a bottleneck to make technology going down. Traditional cooling methods, such as heat sinks or fans, can’t keep such electrical elements at stable temperature. Therefore, thermoelectric cooler is a good candidate not only on upholding a stable temperature but also removing the heat generated from chips. The energy, such as petroleum, coal, coal gas, etc., will exhaust one day. The thermoelectric power generator has the advantages of environmental protection and energy technology. It can generate electric energy from the useless heat by thermoelectric effect. This paper mainly relies on the thermoelectric legs design with different geometry and size to analyze the performance of thermoelectric element.

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