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高k栅介质应变Si SOI MOSFET的阈值电压解析模型

李劲 刘红侠 李斌 曹磊 袁博

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高k栅介质应变Si SOI MOSFET的阈值电压解析模型

李劲, 刘红侠, 李斌, 曹磊, 袁博

Threshold voltage analytical model for strained Si SOI MOSFET with high-k dielectric

Li Jin, Liu Hong-Xia, Li Bin, Cao Lei, Yuan Bo
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  • 在结合应变Si,高k栅和SOI结构三者的优点的基础上,提出了一种新型的高k栅介质应变Si全耗尽SOI MOSFET结构.通过求解二维泊松方程建立了该新结构的二维阈值电压模型,在该模型中考虑了影响阈值电压的主要参数.分析了阈值电压与弛豫层中的Ge组分、应变Si层厚度的关系.研究结果表明阈值电压随弛豫层中Ge组分的提高和应变Si层的厚度增加而降低.此外,还分析了阈值电压与高k栅介质的介电常数和应变Si层的掺杂浓度的关系.研究结果表明阈值电压随高k介质的介
    A strained Si fully depleted SOI MOSFET,which has the advantages of strained Si,high-k gate and SOI structure, is presented in this paper. A two-dimensional analytical model for the threshold voltage in strained Si fully depleted SOI MOSFET with high-k dielectric is proposed by solving Possions equation. Several important parameters are taken into account in the model. Relationships between threshold voltage,Ge Profile and thickness of strained silicon are investigated. The result shows that the threshold voltage decreases with Ge Profile and strained silicon thickness increasing. Relationships between threshold voltage,dielectric constant of high k gate and doping conceration of strained silicon are also investigated. The result shows that the threshold voltage increases with dielectric constant of high-k and doping conceration of strained silicon increasing. SCE and DIBL are analyzed finally,which also demonstrate that this novel device can suppress SCE and DIBL effect greatly.
    • 基金项目: 国家自然科学基金(批准号: 60976068,60936055),教育部科技创新工程重大项目培育基金(批准号: 708083),教育部博士点基金(批准号: 200807010010)资助的课题.
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    [2]

    Coling J P 1993 Sillicon-on-Insulator Technology (Boston: Kluwer Academic Publishers) p5

    [3]

    Luan S Zh,Liu H X,Jia R X,Cai N Q 2008 Acta Phys. Sin. 57 3807 (in Chinese) [栾 苏、刘红侠、 贾仁需、蔡乃琼 2008 物理学报 57 3807]

    [4]

    Fitzgerald E A,Lee M L,Yu B,Lee K L,Dohrman C L,Isaacson D,Langdo T A,Antoniadis D A 2005 International Electron Devices Meeting p355

    [5]

    Sanuki T,Oishi A,Morimasa Y 2003 International Electron Devices Meeting p351

    [6]

    Zhang Zh F,Zhang H M,Hu F Y,Xuan R X,Song J J 2009 Acta Phys. Sin. 58 4948 (in Chinese) [张志锋、张鹤鸣、胡辉勇、宣荣喜、宋建军 2009 物理学报 58 4948 ]

    [7]

    Liu X Y,Kang J F,Sun L 2002 IEEE Electron Lett. 23 270

    [8]

    Tezuka T,Sugiyama N 2003 IEEE Trans. on Electron Devices 50 1328

    [9]

    Kingon A I,Maria J P,Streiffe S K 2000 Nature 406 1032

    [10]

    Liu S,White T,2004 IEEE Trans. on Nuclear Science 51 3475

    [11]

    Wu W,Li X,Gildenblat G,Workman G Veeraraghavan S,McAndrew C,Langevelde R V,Smit G D J,Scholten A J,Klaassen D B M,Watts J 2009 Solid-State Electron. 53 18

    [12]

    Young K K 1989 IEEE Trans. on Electron Devices 36 399

    [13]

    Venkataraman V,Nawal S,Kummer M J 2007 IEEE Trans. on Electron Devices 54 554

    [14]

    Kummer M J,Venkataraman V,Nawal S 2006 IEEE Trans. on Electron Devices 53 364

  • [1]

    Chaudhry A,Kummer M J 2004 IEEE Trans. on Devices Mater. Rel.4 99

    [2]

    Coling J P 1993 Sillicon-on-Insulator Technology (Boston: Kluwer Academic Publishers) p5

    [3]

    Luan S Zh,Liu H X,Jia R X,Cai N Q 2008 Acta Phys. Sin. 57 3807 (in Chinese) [栾 苏、刘红侠、 贾仁需、蔡乃琼 2008 物理学报 57 3807]

    [4]

    Fitzgerald E A,Lee M L,Yu B,Lee K L,Dohrman C L,Isaacson D,Langdo T A,Antoniadis D A 2005 International Electron Devices Meeting p355

    [5]

    Sanuki T,Oishi A,Morimasa Y 2003 International Electron Devices Meeting p351

    [6]

    Zhang Zh F,Zhang H M,Hu F Y,Xuan R X,Song J J 2009 Acta Phys. Sin. 58 4948 (in Chinese) [张志锋、张鹤鸣、胡辉勇、宣荣喜、宋建军 2009 物理学报 58 4948 ]

    [7]

    Liu X Y,Kang J F,Sun L 2002 IEEE Electron Lett. 23 270

    [8]

    Tezuka T,Sugiyama N 2003 IEEE Trans. on Electron Devices 50 1328

    [9]

    Kingon A I,Maria J P,Streiffe S K 2000 Nature 406 1032

    [10]

    Liu S,White T,2004 IEEE Trans. on Nuclear Science 51 3475

    [11]

    Wu W,Li X,Gildenblat G,Workman G Veeraraghavan S,McAndrew C,Langevelde R V,Smit G D J,Scholten A J,Klaassen D B M,Watts J 2009 Solid-State Electron. 53 18

    [12]

    Young K K 1989 IEEE Trans. on Electron Devices 36 399

    [13]

    Venkataraman V,Nawal S,Kummer M J 2007 IEEE Trans. on Electron Devices 54 554

    [14]

    Kummer M J,Venkataraman V,Nawal S 2006 IEEE Trans. on Electron Devices 53 364

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  • PDF下载量:  738
  • 被引次数: 0
出版历程
  • 收稿日期:  2009-10-27
  • 修回日期:  2010-02-06
  • 刊出日期:  2010-11-15

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