Examples of observing intermetallic compounds through etching treatment.
Observe the state of the compound from the direction of the back and the surface! We will consider and propose processing, pretreatment, observation methods, and combinations.
The method of processing observation samples can result in different information being obtained. You may have observed the solder joint from a cross-section in two dimensions, but have you ever wondered how the compound grows in three dimensions? In this document, we present examples of observations of the Cu pad and solder joint. We include both "cross-sectional observation" and "planar observation." [Contents] ■ Cross-sectional observation - Before etching treatment - After etching treatment ■ Planar observation *For more details, please refer to the PDF document or feel free to contact us.
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