For some reason, the Cu plating has grown abnormally! It is assumed that Ni plating has been applied on top of it!
We would like to introduce the defect investigation conducted on the plastic grill surface at our company. In the surface observation, it was noted that some defects extend from the surface, and there are traces that appear to be where the protruding parts have broken off. The center of these traces is Cu, with Ni detected around it. In the cross-sectional observation, the voids within the Cu area were large, and there were gaps in the Cu/plastic just below the defect and in the immediate vicinity of the defect, from which C (Mg, Si) was detected. As a result, we concluded that the defects likely occurred after the Cu plating experienced abnormal growth due to some cause (such as plastic depressions or impurities) and subsequently collapsed, with Ni plating applied on top. [Case Overview] ■ Surface Observation - Some defects extend from the surface. - Traces were observed where the protruding parts seem to have broken off. - The center of these traces is Cu, with Ni detected around it (according to EDX analysis). *For more details, please refer to the related links or feel free to contact us.
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【Summary of Other Cases】 ■Cross-Section Observation - The voids within the Cu section are large, and there are gaps in the Cu/plastic just below and very close to the defects. - Carbon (Mg, Si) was detected from these gap areas. - The Cu plating in this defect area is very rough. ■Conclusion - It is inferred that the defects were caused by some factor (such as plastic depressions or impurities) that led to abnormal growth of the Cu plating, which later collapsed, and Ni plating was applied on top of it. *For more details, please refer to the related links or feel free to contact us.
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【Purpose】 ■Foreign substances, discoloration, surface characteristics ■Investigation of defects *For more details, please refer to the related links or feel free to contact us.
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Daitō Analysis Research has been advancing the establishment of an advanced think tank based on highly reliable analysis and analytical techniques accumulated in various material fields, as well as the challenges received from a wide range of industry customers. We aim to solve our customers' various issues with the least cost and the shortest delivery time. Moving forward, we would like to support our customers' research and development using the latest equipment and advanced manpower, and assist in creating products that enrich the future.