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High magnetocrystalline anisotropy (Ku) material was required for future heat assisted magnetic recording media. The ordered L10 FePt film can be prepared to have high [001] texture which shows high perpendicular magnetic anisotropy. Epitaxial growth of FePt films on MoC/CrRu/glass have been proved to promote chemical ordering and texturing. Dual-segregants such as transition metal-oxide with carbon...
High magnetocrystalline anisotropy (Ku) material was required for future heat assisted magnetic recording media. The ordered L10 FePt film can be prepared to have high [001] texture which shows high perpendicular magnetic anisotropy. Epitaxial growth of FePt films on MoC/CrRu/glass have been proved to promote chemical ordering and texturing. Dual-segregants such as transition metal-oxide with carbon...
The microstructure features and the IMC kinetics of Cu-Sn and Ni-Sn soldering reaction under space confinement are studied in the present study. Experimentally, Cu/Sn(10 μm)/Cu and Ni/Sn(10 μm)/Ni sandwich structures were prepared through a hot-press bonding. Sn with a thickness of 10 μm was chosen to simulate the joints in 3D IC packages employing a severe space confinement. Microstructure characterisations...
This paper investigated the root cause of component fell-off from hand-held products after drop test. Failure modes are cracks at solder joints. Microstructure and fracture morphology of ENIG pad and solder joint were investigated through optical microscope (OM), scanning electron microscope (SEM), and energy dispersive spectrometer (EDS). The solder alloy used for assembly is SAC305 (SnAg3.0Cu0.5)...
Osmium-ruthenium (OsRu) thin films of different thickness were deposited on porous tungsten (W) pellets in a configuration similar to dispenser cathodes, using two separate sputtering systems. In order to assess which films may best inhibit interdiffusion between the OsRu film and the W substrate during annealing, the grain structure and texture of OsRu films were characterized by x-ray diffraction...
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