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Improvement of metal gate/high-K dielectric CMOSFETs characteristics by atomic layer etching of high-K gate dielectric

机译:通过对高K栅极电介质进行原子层蚀刻来改善金属栅极/高K电介质CMOSFET的特性

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摘要

Atomic layer etching (ALE) has been applied to the high-K dielectric patterning in complementary metal-oxide-semiconductor field effect transistors (CMOSFETs), and its electrical characteristics were compared with those etched by conventional etching such as wet etching (WE) or reactive ion etching (RIE). The CMOSFET etched by the ALE showed the improvement of the off-state leakage current (I_(off)), which was mainly attributed to the decreased perimeter component of the gate leakage current (I_G) particularly, at the low field region. The better electrical characteristics are due to the low trap density at the edge of gate oxides in the S/D region of CMOSFETs.
机译:原子层蚀刻(ALE)已应用于互补金属氧化物半导体场效应晶体管(CMOSFET)的高K介电图案化中,并且将其电特性与通过常规蚀刻(如湿法蚀刻(WE)或反应离子蚀刻(RIE)。 ALE蚀刻的CMOSFET显示出关态漏电流(I_(off))的改善,这主要归因于栅极漏电流(I_G)的周边分量减小,尤其是在低场区域。更好的电特性归因于CMOSFET的S / D区域中栅极氧化物边缘处的陷阱密度低。

著录项

  • 来源
    《Solid-State Electronics》 |2013年第4期|82-85|共4页
  • 作者单位

    Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Cyeonggi-do 440-746, Republic of Korea,Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea,SEMATECH. Austin, TX 78741, USA;

    SEMATECH. Austin, TX 78741, USA;

    SEMATECH. Austin, TX 78741, USA;

    SEMATECH. Austin, TX 78741, USA;

    Process Development Team, Semiconductor R&D Center, Samsung Electronics, San #16 Banwol-Dong, Hwasung-City, Gyeonggi-Do 445-701, Republic of Korea;

    Department of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea;

    Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Cwangju 500-712, Republic of Korea;

    Microelectronics Research Center, Department of Electrical and Computer Engineering, The University of Texas, Austin, TX 78758, USA;

    SEMATECH. Austin, TX 78741, USA;

    SEMATECH. Austin, TX 78741, USA;

    SEMATECH. Austin, TX 78741, USA;

    Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Cyeonggi-do 440-746, Republic of Korea;

  • 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

    plasma induced damage; atomic layer etching; high-k dielectric; complementary metal-oxide-; semiconductor field effect transistors; (cmosfets);

    机译:血浆诱导的损伤;原子层蚀刻高介电常数互补金属氧化物半导体场效应晶体管;(cmosfets);

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