TEM Observation of the Dislocations Nucleated from Cracks inside Lightly or Heavily Doped Czochralski Silicon Wafers | Zendy

Seiji SHIBA | Zendy; Koji Sueoka | Zendy

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TEM Observation of the Dislocations Nucleated from Cracks inside Lightly or Heavily Doped Czochralski Silicon Wafers

Author(s) -

Seiji SHIBA,

Koji Sueoka

Publication year - 2011

Publication title -

advances in condensed matter physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.314

H-Index - 26

eISSN - 1687-8124

pISSN - 1687-8108

DOI - 10.1155/2011/541318

Subject(s) - materials science , dopant , dislocation , nucleation , wafer , doping , slip (aerodynamics) , composite material , transmission electron microscopy , vickers hardness test , silicon , indentation hardness , microstructure , optoelectronics , nanotechnology , chemistry , physics , organic chemistry , thermodynamics

The crack propagation from the indent introduced with a Vickers hardness tester at room temperature and the dislocation nucleation from the cracks at 900°C inside lightly boron (B), heavily B, or heavily arsenic (As) doped Czochralski (CZ) Si wafers were investigated with transmission electron microscopy (TEM) observations. It was found that the dopant concentration and the dopant type did not significantly affect the crack propagation and the dislocation nucleation. The slip dislocations with a density of about (0.8∼2.8) × 1013/cm3 were nucleated from the cracks propagated about 10 μm in depth. Furthermore, small dislocations that nucleated with very high density and without cracks were found around the indent introduced at 1000°C

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