...
首页> 外文期刊>Superlattices and microstructures >Comparative study of atomic-layer-deposited HfO_2/Al_2O_3, Hf_(0.8)Al_(0.2)O_x and Hf_(0.5)Al_(0.5)O_x on N-GaAs
【24h】

Comparative study of atomic-layer-deposited HfO_2/Al_2O_3, Hf_(0.8)Al_(0.2)O_x and Hf_(0.5)Al_(0.5)O_x on N-GaAs

机译:N-GaAs上原子层沉积HfO_2 / Al_2O_3,Hf_(0.8)Al_(0.2)O_x和Hf_(0.5)Al_(0.5)O_x的比较研究

获取原文
获取原文并翻译 | 示例
           

摘要

Interfacial properties of n-GaAs metal-oxide-semiconductor (MOSCAPs) with the gate dielectrics of HfO_2/Al_2O_3, Hf_(0.8)Al_(0.2)O_x and Hf_(0.5)Al_(0.5)O_x are investigated. The results reveal that Hf_(0.5)Al_(0.5)O_x has larger permittivity and lower interface trap density than that of HfO_2/ Al_2O_3. In order to explain the result from the physical perspective, the XPS tests of all three samples are performed. It is found that the main reason to form interface trap of three samples treated with 500 ℃ post-deposition annealing, is attributed to the interfacial component of Ga_2O_3 and The Hf_(0.5)Al_(0.5)O_x dielectric is beneficial to reducing the formation of Ga_2O_3.
机译:研究了具有栅电介质HfO_2 / Al_2O_3,Hf_(0.8)Al_(0.2)O_x和Hf_(0.5)Al_(0.5)O_x的n-GaAs金属氧化物半导体(MOSCAP)的界面特性。结果表明,Hf_(0.5)Al_(0.5)O_x比HfO_2 / Al_2O_3具有更大的介电常数和更低的界面陷阱密度。为了从物理角度解释结果,对所有三个样品进行了XPS测试。研究发现,经过500℃沉积后退火处理的3个样品形成界面陷阱的主要原因是Ga_2O_3的界面成分,Hf_(0.5)Al_(0.5)O_x电介质有利于减少Al的形成。 Ga_2O_3。

著录项

  • 来源
    《Superlattices and microstructures》 |2016年第11期|58-61|共4页
  • 作者单位

    School of Microelectronics, Xidian University, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices of China, Xi'an 710071, PR China;

    School of Microelectronics, Xidian University, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices of China, Xi'an 710071, PR China;

    School of Microelectronics, Xidian University, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices of China, Xi'an 710071, PR China;

    School of Microelectronics, Xidian University, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices of China, Xi'an 710071, PR China;

    School of Microelectronics, Xidian University, Key Laboratory of Wide Band-Gap Semiconductor Materials and Devices of China, Xi'an 710071, PR China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Gate dielectric; Interface trap density; GaAs;

    机译:栅极电介质;界面陷阱密度;砷化镓;

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号