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Your search keyword '"Matsuda, Tokiyoshi"' showing total 99 results
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99 results on '"Matsuda, Tokiyoshi"'

5. Analysis of Carrier Mobility in Amorphous Metal-Oxide Semiconductor Thin-Film Transistor Using Hall Effect.

Author

Imanishi, Kota, Matsuda, Tokiyoshi, and Kimura, Mutsumi

Abstract

Carrier mobility in an amorphous metal-oxide semiconductor (AOS) thin-film transistor (TFT) was analyzed using the Hall effect. First, an amorphous Ga-Sn-O (a-GTO) TFT and that with four electrodes arranged in a square shape are fabricated. Next, a transistor characteristic of the a-GTO TFT is measured, and field-effect mobility ($\mu _{{\text {FE}}}$) is calculated. Moreover, the Hall effect of the a-GTO TFT with the four electrodes is measured using a van der Pauw method, and Hall mobility ($\mu _{{\text {Hall}}}$) is calculated. Finally, it is found that the dependence of $\mu _{{\text {FE}}}$ on the gate voltage ($\text{V}_{{\text {gs}}}$) is similar to that of $\mu _{{\text {Hall}}}$ , and the carrier mobility ($\mu $) increases as Vgs increases. In conclusion, it is suggested that $\mu $ in the AOS TFT is strongly subject to the percolation path in the channel layer. [ABSTRACT FROM AUTHOR]

Published
2020
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45. Hybrid-Type Temperature Sensor Using Poly-Si Thin-Film Transistors Outputting Rectangle Waveforms.

Author

Hayashi, Hisashi, Matsuda, Tokiyoshi, and Kimura, Mutsumi

Abstract

We have succeeded in developing a hybrid-type temperature sensor using poly-Si thin-film transistors (TFTs) that outputs rectangle waveforms. An advantage of the conventional hybrid-type sensor is that large temperature dependences of off-leakage currents can be utilized, and it simultaneously works in a digital operation tolerant of noises. Additionally, in this paper, by connecting two conventional ones, the sensor becomes able to output rectangle waveforms, which can be easily counted. We confirm the waveform and that the sensor can detect the correct temperature. We think that it is promising to integrate this temperature sensor in some applications using TFTs. [ABSTRACT FROM PUBLISHER]

Published
2017
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