用溶出伏安法代替导电法检测电子产品上的杂质污染  

Determination of Contamination on Electronic Products by voltammetric─An Alternative to Conductometric Method

作　　者：吴永炘[1] 陈满香 

机构地区：[1]香港理工学院应用生物及化工系,广州华南理工大学食品轻工学院

出　　处：《电镀与涂饰》1994年第4期5-8,共4页Electroplating & Finishing

摘　　要：经过电镀或焊接的印刷电路版会受到卤化物污染。传统用来检测电子产品上的卤化物的导电法存在灵敏度较低和选择性较差的缺点，且测量中需要准确控制温度才能得准确的结果。使用本文介绍的溶出伏安法能克服导电法的这些缺点，而且其灵敏度较高，能用于测定印刷电路板中细小的部件或用于其它电子组合作如ＴＯ组合作中的单一元件的污染控制。Printed circuit board may be contaminated by handes in plating or welding process.Conventional conductance method for detection of such handes on the products suffers the disadvantages of relatively low sensitivity and selectivity, and requiresprecision temperature control during its measurement in order to give precision results.The voltammetric stripping method described may overcome the deficiencies of the conventional method .Owing to its higher sensitivity,the proposed method can be used for measurement of small piece of PCB or for monitoring of contaminants on single piece of other electronic packages such as TO-5 package.

关 键 词：电镀 印刷电路板 质量控制 伏安法 

分 类 号：TN420.7[电子电信—微电子学与固体电子学]