講演名 1999/3/19
Amorphous Silicon Thin Film Transistors Formed by Plasma Enhanced Deposition at 110℃ on Transparent Glass/Plastic Substrates
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抄録(和)
抄録(英) This article demonstrates good quality amorphous silicon thin film transistors (TFT) fabricated with a maximum processing temperature of 110℃ on glass or fiexible transparent plastic substrates, using rf plasma enhanced chemical vapor deposition. Hydrogen diluted silane was used for the preparation of the amorphous silicon (a-Si), while SiH_4/NH_3/N_2 or SiH_4/NH_3/N_2/H_2 mixtures were used for the preparation of silicon nitride (SiNx) films. Gate and source/drain metal was sputter deposited molybdenum. Plastic substrates were indium tin oxide (ITO) coated polyethylene terephthalate (PET). Transistors formed, using same processes, on glass and plastic show linear mobilities of 0.33 and 0.12 cm^2/Vs, respectively, with I_/I_ ratios greater than 10^6. For transistors on glass, the achieved highest linear mobility is 0.54 cm^2/Vs. The stability of transistors was characterized using electrical stress measurements. The threshold voltage shift is 5.0 volt for a typical transistor on glass substrate, using a stress condition of V_g=25 volt, 600 seconds. Without applying electrical stresses, threshold voltages and linear mobilities of all transistors were found to increase with storage time. We suggest that the relaxation of the interface (SiNx/a-Si) through the bond breaking of the weakest Si-Si bonds contribute the observation.
キーワード(和)
キーワード(英) Thin film transistor / 110℃ PECVD / Plastic substrate / Amorphous silicon / Stability
資料番号 EID98-252
発行日

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開催期間 1999/3/19(から1日開催)
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本文の言語 ENG
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タイトル(英) Amorphous Silicon Thin Film Transistors Formed by Plasma Enhanced Deposition at 110℃ on Transparent Glass/Plastic Substrates
サブタイトル(和)
キーワード(1)(和/英) / Thin film transistor
第 1 著者 氏名(和/英) / Chien-Sheng Yang
第 1 著者 所属(和/英)
Unipac Optoelectronics Corp.
発表年月日 1999/3/19
資料番号 EID98-252
巻番号(vol) vol.98
号番号(no) 666
ページ範囲 pp.-
ページ数 4
発行日