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This paper focuses on a failure analysis method on one common power IC failure encountered in the production lines. The new methodology utilizing liquid crystal thermography successfully shortens the total cycle time needed to detect the bond cratering defect and its root cause analysis. The decapsulated defective parts are subjected to suitable biasing current in liquid crystal thermography analysis...
Image interpolation has been used widely to perform magnification by predicting missing details from a sampled image. As most of the signal information is distributed around edges and areas of sharp changes, there is a need of designing an interpolation technique that is able to predict these changes precisely. However, many conventional polynomial-based interpolation methods tend to smooth or blur...
Edge structures which are boundaries of object surfaces are essential image characteristic in computer vision and image processing. As a result, edge detection becomes part of the core feature extraction in many object recognition and digital image applications. This paper presents a new hybrid edge detector that combines the advantages of Prewitt, Sobel and optimized Canny edge detectors to perform...
An improvement to previously proposed maximum-minimum variation (MMV) test for protein levels quantification is reported. The additional process is artefacts segmentation in latex glove sample by using k-means clustering algorithm. The new proposed maximum-minimum clustering variation (MMCV) technique, give significantly better results in terms of consistency and accuracy than existing methods.
This paper focuses on application for non-rigid contour tracking in heavily cluttered liquid crystal images. Based on the properties of non-rigid contour movements, cascading image sequences are conducted for contour motion vector estimation using a hexagon-diamond search. This enables retrieving the motion for the failure parts in the crystal images and accurately tracks them while the shape changes...
This paper introduces the contrast enhancement bilateral closing top-hat Otsu thresholding (CEBITOT) technique to perform crack detection. This technique is based on the mathematical morphology and image filtering technique to extract the crack like patterns. Mathematical morphology highlights the cracks clearly while bilateral filtering filters out the noise from the image efficiently and preserving...
Experimental analysis of transient natural convection heat transfer from a four-in-line chip module that are flush-mounted to one wall of a vertical rectangular channel are performed for the liquid coolant of FC-72. The heat flux ranges from 1 kW/m2 to 6 kW/m 2. The effect of heat fluxes and chip numbers are investigated. The results indicate that the heat transfer coefficient is affected strongly...
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