Optical Dark Field Imaging for Characterization of Semiconductors

  • Ogawa, Tomoya (Department of Physics, Gakushin University) ;
  • Kissinger, Gudrun (Institute for Semiconductor Physics, Frankfurt (Order), Germany) ;
  • Sakai, Kazufumi (Department of Math. & Phys., The National Defence Academy, Yokosuka City, 239, Japan)
  • 발행 : 1997.06.01

초록

The principle of dark field imaging is comprehensively discussed using real images of dislocations, stacking faults and gettering phenomena due to defects obtained by Cz Si wafers and LEC semi-insulating GaAs crystals. Resulution of dark field imaging is improved by Fourier transformation of Fraunhofer diffraction pattern obtained at an out-of focusing position of an objective lens.

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