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基底元素透过镀层于表面富集可使镀层失去作用和意义,导致元、器件失效。对银上镀金样品的SAM法研究结果表明,常温下这种富集主要是基底元素通过缺陷和晶界扩散穿透镀层再行表面扩散而遍及表面的;镀件的表面吸附与表面富集的发生密切相关。文中给出了随时间的推移,银于表面富集情况的清晰的俄歇相。已发展出新的工艺,可以明显地延缓基底元素透过镀层到表面的富集。
Substrate elements through the coating on the surface enrichment can make the coating lose its meaning and significance, resulting in yuan, the device failure. The results of SAM study on gold-plated silver samples show that at room temperature, this enrichment is mainly due to substrate elements diffusing through the coating and diffusing through the surface of the coating to diffuse throughout the surface; surface adsorption and surface enrichment Closely related. The paper presents a clear Auger phase of silver enrichment over time over time. New processes have been developed that significantly delay the enrichment of substrate elements through the coating to the surface.