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This paper, aiming to decrease the amount of the transformation caused by the machining of the turbine blades material made of shape forging, investigates the optimal machining method for them. Accordingly, through merely the experiment that used the rectangular test pieces made of the rolled steel with the same chemical composition as the actual blades had been performed, we obtained the findings...
NAND flash memories are now indispensable for our modern lives. The application range of the storage memory devices began with digital still cameras and has been extended to USB memories, memory cards, MP3 players, cell phones including smart phones, netbooks, and so on. This is because higher storage capacity and lower cost are realized through means of technology scaling every year. Emerging markets,...
This paper reviews our recent activities on nanophotonics based on a photonic crystal (PC)/quantum dot (QD)-combined structure for an all-optical device and a metal/semiconductor composite structure using surface plasmon (SP) and negative refractive index material (NIM). The former structure contributes to an ultrafast signal processing component by virtue of new PC design and QD selective-area-growth...
Recently, Sliding electrical contacts are used in severe operating conditions, such as high temperatures, very low temperatures and ultra-high vaccums. They also require high reliability. In this research, three kinds of composite materials, containing different elements, make use of WS2 show excellent characteristics in the atmospheres mentioned above. A Cu disk was examined as a partner materials...
We have demonstrated very high-k (k~50) HfO2 films for ultra-scaled CMOS application. Higher symmetric crystalline structure enables us to achieve higher-k HfO2. We present a feasible method to obtain sub-nm EOT with very high-k HfO2 under actual process conditions, together with an underlying mechanism.
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