• 제목/요약/키워드: Thin film transistors

검색결과 867건 처리시간 0.035초

이중 금속 측면 결정화를 이용한 40$0^{\circ}C$ 다결정 실리콘 박막 트랜지서터 제작 및 그 특성에 관한 연구 (Fabrication and Characteristics of poly-Si thin film transistors by double-metal induced lteral crystallization at 40$0^{\circ}C$)

  • 이병일;정원철;김광호;안평수;신진욱;조승기
    • 전자공학회논문지D
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    • 제34D권4호
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    • pp.33-39
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    • 1997
  • The crystallization temperature of an amorphous silicon (a-Si) can be lowered down to 400.deg. C by a new method : Double-metal induced lateral crystallization (DMILC). The a-Si film was laterally crystallized from Ni and Pd deposited area, and its lateral crystallization rate reaches up to 0.2.mu.m/hour at that temperature and depends on the overlap length of Ni and Pd films; the shorter the overlap length, the faster the rate. Poly-Silicon thin film transistors (poly-Si TFT's) fabricated by DMILC at 400.deg. C show a field effect mobility of 38.5cm$^{3}$/Vs, a minimum leakage current of 1pA/.mu.m, and a slope of 1.4V/dec. The overlap length does not affect the characteristics of the poly-Si TFT's, but determines the lateral crystallization rate.

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고분자 기판 상에 제작된 극저온 다결정 실리콘 박막 트랜지스터에 관한 연구 (Fabrication of Ultra Low Temperature Poly crystalline Silicon Thin-Film Transistors on a Plastic Substrate)

  • 김영훈;김원근;문대규;한정인
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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    • pp.445-446
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    • 2005
  • This letter reports the fabrication of polycrystalline silicon thin-film transistors (poly-Si TFT) on flexible plastic substrates using amorphous silicon (a-Si) precursor films by sputter deposition. The a-Si films were deposited with mixture gas of argon and helium to minimize the argon incorporation into the film. The precursor films were then laser crystallized using XeCl excimer laser irradiation and a four-mask-processed poly-Si TFTs were fabricated with fully self-aligned top gate structure.

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Advances in Materials for Printed Transistors

  • Ong, Beng S.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.1065-1066
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    • 2008
  • Printed thin-film transistors (TFTs) have received profound interests as an alternative to their silicon counterparts for use in fabricating next-Gen microelectronics by virtue of projected low manufacturing cost and certain salient features (e.g., thin and lightweight characteristics, structural flexibility, etc.) that printed TFTs bring to device architecture. The economic advantages stem from engaging low-cost printing techniques (e.g., screen printing, gravure, flexography, etc.) for deposition and patterning in place of traditionally costly high-vacuum, high-temperature photolithographic processes. To render printing TFTs possible, solution processable materials are necessary.

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Crystallization of a-Si Induced by Ni-Si oxide source

  • Meng, Z.;Liu, Z.;Zhao, S.;Wu, C.;Wong, M.;Kwok, H.;Xiong, S.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.985-988
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    • 2008
  • Metal induced crystallization of a-Si with a source of Ni/Si oxide was studied. Its mechanism to induce crystallization was discussed. It was found that new source behaves an effect of self-released nickel and reducing nickel residua, so can provide a wider process tolerance; improve the uniformity and stability of TFTs.

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종이 기판을 이용한 유기박막 트랜지스터의 제작 (Polymer Thin-Film Transistors Fabricated on a Paper)

  • 김영훈;문대규;한정인
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2005년도 하계학술대회 논문집 Vol.6
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    • pp.504-505
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    • 2005
  • In this report, we demonstrate a high performance polymer thin-film transistor fabricated on a paper substrate. As a water barrier layer, parylene was coated on the paper substrate by using vacuum deposition process. Using poly (3-hexylthiophene) as an active layer, a polymer thin-film transistor with field-effect of up to 0.086 $cm^2/V{\cdot}s$ and on/off ratio of $10^4$ was achieved. The fabrication of polymer thin-film transistor built on a cheap paper substrate is expected to open a channel for future applications in flexible and disposable electronics with extremely low-cost.

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Characteristics of Low-Temperature Polysilicon Thin Film Transistors

  • Kim, Young-Ho
    • 한국재료학회지
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    • 제5권2호
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    • pp.203-207
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    • 1995
  • Polysilicon this film transistors (poly-Si TFTs) with different channel dimensions were fabricated on low-temperature crystalized amorphous silicon films and on as-deposited polysilicon films. The electrical characteristics of these TFTs were characterized and compared. The performance of the TFTs fabricated on the solid-phase crystalized amophous silicon films ws showon to be superior to that of the TFTs fabricated on the as-deposited polysilicon films. It was found that the performance of poly-Si TFTs depends strongly on the material characteristics of the polysilicon films used as the active layers, but only weakly on the channel dimensions.

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