講演抄録/キーワード |
講演名 |
2008-11-16 09:00
めっきを施した電気接点における接触抵抗挙動(1) ~ 理論的解析 ~ ○澤田 滋・清水佳織・服部康弘(オートネットワーク技研)・玉井輝雄(三重大) EMD2008-88 エレソ技報アーカイブへのリンク:EMD2008-88 |
抄録 |
(和) |
Electrical contacts are an important part of electrical circuits and many reliability problems are related to their failure. It is important to investigate relationship between load and contact resistance which made contact reliability. In this study, the effect of plating material and plating thickness on contact resistance was examined. The samples were constructed of a copper alloy with tin or silver plating. The resistance of the embossment shape and plane contact was measured by using a four-probe method with a load up to 40N. The relation between contact area and contact resistance is determined. As experimental result, the results show that the contact resistance depends on the indentation of the contact area. At in the same contact area, tin-plated samples have higher resistance than those that are silver-plated because of their own resistivity. The constriction resistance with a plating layer, which depends on contact area and plating thickness, is calculated by electrical field analysis in order to predict load-contact resistance. The constriction resistance with plating is shown by R=Φρ/2a, using a surface resistance coefficient Φ theoretically. The theoretical results show good agreement with experimental results in the case of silver plating. In the case of tin plating, the experimental results are slightly higher than the theoretical results due to tin oxide film resistance effects. |
(英) |
Electrical contacts are an important part of electrical circuits and many reliability problems are related to their failure. It is important to investigate relationship between load and contact resistance which made contact reliability. In this study, the effect of plating material and plating thickness on contact resistance was examined. The samples were constructed of a copper alloy with tin or silver plating. The resistance of the embossment shape and plane contact was measured by using a four-probe method with a load up to 40N. The relation between contact area and contact resistance is determined. As experimental result, the results show that the contact resistance depends on the indentation of the contact area. At in the same contact area, tin-plated samples have higher resistance than those that are silver-plated because of their own resistivity. The constriction resistance with a plating layer, which depends on contact area and plating thickness, is calculated by electrical field analysis in order to predict load-contact resistance. The constriction resistance with plating is shown by R=Φρ/2a, using a surface resistance coefficient Φ theoretically. The theoretical results show good agreement with experimental results in the case of silver plating. In the case of tin plating, the experimental results are slightly higher than the theoretical results due to tin oxide film resistance effects. |
キーワード |
(和) |
/ / / / / / / |
(英) |
Electrical contact / contact resistance / plating / contact load / contact area / / / |
文献情報 |
信学技報, vol. 108, no. 296, EMD2008-88, pp. 93-96, 2008年11月. |
資料番号 |
EMD2008-88 |
発行日 |
2008-11-08 (EMD) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
EMD2008-88 エレソ技報アーカイブへのリンク:EMD2008-88 |
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