Effect of roughness on electrical contact performance of electronic components
Effect of roughness on electrical contact performance of electronic components
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DOI：
10.1016/j.microrel.2017.05.024
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发表时间：
2017-07-01
影响因子：
1.6
通讯作者：
Zhu, Min-Hao
中科院分区：
文献类型：
--
作者：
Liu, Xin-Long;Cai, Zhen-Bing;Zhu, Min-Hao
本研究调查了接触电阻（ECR）对用于移动的手机、充电器、数码相机、蓝牙耳机、医疗设备和其他具有不同表面粗糙度的电子产品的弹簧针的影响。实验结果表明，金属磨屑是由微动运动产生的，并在粗糙表面上形成第三体，而不被微动运动去除，从而增加ECR。磨屑在光滑表面的接触区域不易形成第三体，并导致金属-金属接触图案的形成。结果表明，低ECR与微动运动。接触面积的3D和2D轮廓验证了接触高点的定义，进一步解释了ECR的增加。(C)2017爱思唯尔有限公司版权所有
This study investigated the effects of electrical contact resistance (ECR) on pogo pins used in mobile phones, chargers, digital cameras, Bluetooth headsets, medical equipment, and other electronic products with different surface roughness. Experimental results revealed that metallic wear debris is generated by fretting motion and formation of a third body on rough surfaces without removal by fretting motion, thus increasing ECR. Wear debris does not easily form the third body at contact areas of smooth surfaces and causes formation of metal-metal contact pattern. Results showed low ECR with fretting motion. 3D and 2D profiles of contact area verified the definition of contacting high spots, further explaining increases in ECR. (C) 2017 Elsevier Ltd. All rights reserved.