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Electronic products such as phone handsets and table PC have been highly-miniaturized, and their functionality and performance have increased. In particular, high power density integrated passives accelerate industrial and consumer applications of one-chip DC-to-DC converters, since the converters which are closer to the load were required in order to minimize efficiency losses and reduce the effects...
The author developed a method to grow CNTs selectively onto an apex of W-tip using "selective etching" method. Here the author reports that this method is also valid to control the number of CNTs at the W-tip.
Using an optical-scanning method, we obtained 2-D spatial profile of deposition rate of hydrogenated amorphous silicon (a-Si:H) films deposited by a multihollow discharge plasma CVD with a high spatial resolution. From the profile, we deduced 2-D spatial profile of the volume fraction of nanoparticles incorporated into films, since nanoparticles affect optical and electronic properties of a-Si:H films.
A CMOS VCO circuit technique which enables a dynamic GHz-band switching has been described. To get wide band switching, it has been clarified analytically that keeping Q constant is important to configure the circuit. To meet this, an LC VCO circuit which can switch resonant capacitors and inductors simultaneously for switching the band has been suggested. To verify the effect, a dual band VCO circuit...
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