• Title/Summary/Keyword: Alternating Magnetic Field Crystallization

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Alternating Magnetic Field Crystallization of Amorphous Si Films

  • Kang, K.H.;Park, S.H.;Lee, S.J.;Nam, S.E.;Kim, H.J.
    • Journal of Information Display
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    • v.4 no.1
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    • pp.34-37
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    • 2003
  • We investigate the solid phase crystallization of amorphous Si films on glass substrates under alternating magnetic field induction. The kinetics of crystallization are found to be greatly enhanced by alternating magnetic field. While complete crystallization takes heat treatment of more than 14 hours at 570$^{\circ}C$, it can be reduced by applying the megnetic field to 20 minutes. It is assumed that the enhancement of crystallization is associated with an electromotive force voltage generated by alternating magnetic field. This electric field applied in the amorphous Si may possibly be the reason for acceleration of the atomic mobility of crystallization through the modification of atomic potentials

Crystallization characteristics of the amorphous Si thin films in the AMFC system (AMFC system에서의 비정질 실리콘 박막의 결정화 특성)

  • Kang Ku Hyun;Lee Seung Jae;Kim Sun Ho;Lee Sue Kyeong;Nam Seung Eui;Kim Hyoung June
    • Journal of the Korean Vacuum Society
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    • v.14 no.1
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    • pp.24-28
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    • 2005
  • A typical method for obtaining poly-Si films is the solid phase crystallization(SPC) of amorphous Si. Advantages of SPC are uniformity, process quality and low cost of production. However, high process temperature and long process time prevent the employment of SPC process on thermally susceptible glass substrate. In this parer, we propose a new method that applies an alternating magnetic field during crystallization annealing in an alternating magnetic field crystallization(AMFC) system for lowering process temperature and shorter process time of SPC. When we crystallized, in the case of SPC, annealing time is 24 hours at 570℃. But in the case of AMFC, annealing time is only 20 minutes at the same temperature.