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前言一台电子设备,总是由很多个锡焊点(指用一般的铅锡焊料焊接的焊点)接头连结起来的电子系统组装而成的。常常会出现这样一个问题:电子系统设计得很合理,选用的元件与材料也很优良,但在很多光亮焊点的下部却早已腐蚀了,并造成了故障。为了排除故障,寻找这些焊点是很费时间的。有时,会因此而造成整机返修,带来很大的经济损失。同时,还会影响到设计与生产部门之间的关系,甚至会使用户对产品的可靠性产生怀疑,造成不好的影响。
Introduction A piece of electronic equipment is always assembled from an electronic system that has a large number of solder joints (solder joints soldered using lead-tin solder). Often a problem arises: the electronic system is designed reasonably well with selected components and materials, but the lower part of many bright solder joints has long corroded and caused a malfunction. In order to troubleshoot, looking for these solder joints is a lot of time. Sometimes, it will cause the machine to be repaired, resulting in great economic losses. At the same time, it will also affect the relationship between the design and production departments, and may even cause users to have doubts about the reliability of the product and cause bad effects.