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首页> 外文期刊>Solid-State Electronics >Time dependent dielectric breakdown (TDDB) characteristics of metal-oxide-semiconductor capacitors with HfLaO and HfZrLaO ultra-thin gate dielectrics
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Time dependent dielectric breakdown (TDDB) characteristics of metal-oxide-semiconductor capacitors with HfLaO and HfZrLaO ultra-thin gate dielectrics

机译:具有HfLaO和HfZrLaO超薄栅极电介质的金属氧化物半导体电容器的时间相关介电击穿(TDDB)特性

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摘要

The high k gate dielectrics of MOS capacitors with HfZrLaO (standing for HfO_2 doped with La and Zr) or HfLaO (standing for HfO_2 doped with La) have been fabricated by atomic-layer-deposition (ALD), and the time-dependent-dielectric-breakdown (TDDB) reliability properties have also been investigated. The equivalent oxide thickness (EOT) of HfLaO or HfZrLaO is 0.72 nm or 0.68 nm, respectively. In terms of the gate leakage current density (J_g) versus EOT (J_g-EOT) performance, HfZrLaO has a better characteristic in comparison with HfLaO. In terms of TDDB characteristics, the maximum voltages projected to have 10-year TDDB lifetime under 85 ℃ operation for HfZrLaO and HfLaO ultra-thin gate dielectrics are 1.87 V and 2.03 V, respectively. In addition, some important results, such as activation energy and field acceleration parameter, for HfLaO and HfZrLaO gate dielectrics are compared and summarized in this research.
机译:通过原子层沉积(ALD)和时变电介质,制造了具有HfZrLaO(代表掺有La和Zr的HfO_2)或HfLaO(代表掺La的HfO_2)的MOS电容器的高k栅极电介质。还研究了故障(TDDB)可靠性属性。 HfLaO或HfZrLaO的等效氧化物厚度(EOT)分别为0.72 nm或0.68 nm。就栅极泄漏电流密度(J_g)与EOT(J_g-EOT)性能而言,与HfLaO相比,HfZrLaO具有更好的特性。就TDDB特性而言,对于HfZrLaO和HfLaO超薄栅极电介质,在85℃下工作时,预计最大电压在TDDB寿命为10年时,分别为1.87 V和2.03V。此外,对HfLaO和HfZrLaO栅极电介质的一些重要结果,例如活化能和场加速参数进行了比较和总结。

著录项

  • 来源
    《Solid-State Electronics》 |2012年第2012期|p.2-6|共5页
  • 作者单位

    Institute of Mechatronic Engineering, National Taipei University of Technology (NTUT). Taiwan. ROC;

    Institute of Mechatronic Engineering, National Taipei University of Technology (NTUT). Taiwan. ROC;

    Institute of Mechatronic Engineering, National Taipei University of Technology (NTUT). Taiwan. ROC;

    Dept. of Mechatronic Technology, National Taiwan Normal University (NTNU), Taiwan, ROC;

    Dept. of Electronic Engineering, Ming Chuan University (MCU), Taiwan, ROC;

    Institute of Mechatronic Engineering, National Taipei University of Technology (NTUT). Taiwan. ROC;

    Dept. of Electronic Engineering, Ming-Hsin University of Science and Technology (MUST), Taiwan, ROC;

    Dept. of Mechatronic Technology, National Taiwan Normal University (NTNU), Taiwan, ROC;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    HfLaO; HfZrLaO; time dependent dielectric breakdown; (TDDB); lifetime;

    机译:HfLaO;HfZrLaO;时间相关的介电击穿(TDDB);一生;

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