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Delamination is an important failure mechanism of plastic packaging devices. In this paper, the delamination variation trend of two kinds of plastic packaging devices were traced through combined reliability test. Test condition was designed based on the actual operating condition of the device. C-SAM inspection was carried out after each test. It is observed that delamination was expansion during...
In YBCO coils, the increased transport current density and magnetic field will induce larger electromagnetic force, and YBCO coated conductors (CCs) may suffer interlayer delamination by shear forces, which may give rise to performance degradation of the conductor. The delamination characteristics of YBCO CCs under shear stress should be well understood for better application of YBCO tapes to high-temperature...
For the package size, weight and cost advantages, plastic encapsulated techniques have been widely used in the packaging industry. However, due to the inherent seal problem of the plastic materials itself and the mismatched coefficient of thermal expansion (CTE) between the epoxy moulding materials and the various interfaces, many reliability problems are worth of serious consideration. In this paper,...
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