• DocumentCode
    1981395
  • Title

    Odd aberration measurement of projection optics in lithographic tools based on dipole illumination

  • Author

    Peng, Bo ; Wang, Xiangzhao ; Qiu, Zicheng ; Yuan, Qiongyan

  • Author_Institution
    Inf. Opt. Lab., Chinese Acad. of Sci., Shanghai, China
  • fYear
    2009
  • fDate
    30-3 Aug. 2009
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    Theoretical analysis of impact of illumination profile on measurement accuracy is given. A novel measurement technique using Alt-PSM marks under dipole illumination is proposed based on the analysis result.
  • Keywords
    aberrations; optical projectors; photolithography; Alt-PSM marks; dipole illumination; illumination profile; image displacement; lithographic tools; odd aberration measurement; projection optics; Equations; Frequency; Image analysis; Image sampling; Laboratories; Lighting; Lithography; Measurement techniques; Mechanical variables measurement; Optical diffraction; Alt-PSM marks; dipole illumination; image displacement; odd aberration;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on
  • Conference_Location
    Shanghai
  • Print_ISBN
    978-1-4244-3829-7
  • Electronic_ISBN
    978-1-4244-3830-3
  • Type

    conf

  • DOI
    10.1109/CLEOPR.2009.5292630
  • Filename
    5292630