Scab. An imperfection in the form of a shell or veneer, generally attached to the surface by sound metal. It usually has its origin in an ingot defect.
结疤。通常由钢锭缺陷引起的、附着在完好金属表面上的薄壳状或镶片状缺欠。
2
The porosity defect is the important influencing factor to the quality of metal, and the non-touch inspecting method based image processing is an effective way.
针孔缺陷是影响金属箔材质量的重要因素，而基于图像处理的非接触性检测方法是检测针孔的一种有效途径。
3
The stress migration is one of defect that determines metal routing reliability in the IC manufacture.