• Title/Summary/Keyword: $LiNbO_3$/Si(100) structures Retention

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Gate Electrode Dependence of MFSFETs using $LiNbO_3$ Thin Film ($LiNbO_3$ 박막을 이용한 MFSFET의 게이트 전극 의존성)

  • 정순원;김용성;김채규;이남열;김광호
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 1999.11a
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    • pp.25-28
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    • 1999
  • Metal ferroelectric semiconductor Field Effect- Transistors(MFSFET) with various gate electrodes, that are aluminum, platinum and poly -Si, using LiNbO$_3$/Si(100) structures were fabricated and the properties of the FETs have been discussed. The drain current of the state of FET with Pt electrode was more than 3 orders of magnitude larger than the state current at the same gate voltage of 1.5 V, 7.rich means the memory operation of the MFSFET. A write voltage as low as about $\pm$4 V, which is applicable to low power integrated circuits, was used for polarization reversal. The retention properties of the FET using Al electrode were quite good up to about 10$^3$s and using Pt electrode remained almost the same value of its initial value over 2 days at room temperature.

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Properties of MFSEET′s with various gate electrodes using $LiNbO_3$ ferroelectric thin film ($LiNbO_3$강유전체 박막을 이용한 MFSFET's의 게이트 전극 변화에 따른 특성)

  • 정순원;김광호
    • Journal of the Korean Vacuum Society
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    • v.11 no.2
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    • pp.103-107
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    • 2002
  • Metal/ferroelectric/semiconductor field effect transistors(MFSFET′s) with various gate electrodes, that are aluminum, platinum and poly-Si, using rapid thermal annealed $LiNbO_3$/Si(100) structures were fabricated and the properties of the FET′s have been discussed. The drain current of the "on" state of FET with Pt electrode was more than 3 orders of magnitude larger than the "off" state current at the same "read" gate voltage of 1.5 V, which means the memory operation of the MFSFET. A write voltage as low as about $\pm$4 V, which is applicable to low power integrated circuits, was used for polarization reversal. The retention properties of the FET using Al electrode were quite good up to about $10^3$ s and using Pt electrode remained almost the same value of its initial value over 2 days at room temperature.