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Comprehensive Characterization of Extended Defects in Semiconductor Materials by a Scanning Electron Microscope
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Advanced semiconductor diagnosis by multidimensional electron-beam-induced current technique.

J Chen1, X Yuan, T Sekiguchi

  • 1Advanced Electronic Materials Center, National Institute for Materials Science, Tsukuba, Ibaraki, Japan. CHEN.Jun@nims.go.jp

Scanning
|July 11, 2008
PubMed
Summary
This summary is machine-generated.

Advanced semiconductor diagnosis is achieved using electron-beam-induced current (EBIC) techniques. This method enhances the analysis of complex devices, revealing material properties and defects for improved performance.

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Area of Science:

  • Materials Science
  • Semiconductor Physics
  • Device Engineering

Background:

  • Electron-beam-induced current (EBIC) is a powerful technique for semiconductor analysis.
  • Conventional EBIC is limited in diagnosing complex, layered semiconductor devices.
  • Advanced semiconductor devices require sophisticated diagnostic methods beyond basic defect characterization.

Purpose of the Study:

  • To demonstrate advanced semiconductor diagnosis using the electron-beam-induced current (EBIC) technique.
  • To extend EBIC applications from defect characterization to complex device diagnosis.
  • To showcase EBIC's utility in analyzing hybrid structures and overcoming diagnostic limitations.

Main Methods:

  • Utilized electron-beam-induced current (EBIC) by varying parameters like temperature, accelerating voltage (V(acc)), bias voltage, and stressing time.
  • Applied temperature-dependent EBIC to study recombination activities and impurity interactions in multicrystalline silicon (mc-Si).
  • Employed EBIC to detect dislocations in strained-Si/SiGe structures and observe leakage sites in high-k gate dielectrics.

Main Results:

  • Clarified recombination activities of grain boundaries and Fe impurity interaction in photovoltaic mc-Si.
  • Successfully detected dislocations between strained-Si and SiGe, overcoming depletion region limitations.
  • Observed leakage sites in high-k gate dielectrics, enabling advanced hybrid device characterization.

Conclusions:

  • Electron-beam-induced current (EBIC) is effective for advanced diagnosis of complex semiconductor devices, including hybrid structures.
  • EBIC's versatility allows for detailed analysis of material properties, defects, and performance limitations.
  • The presented EBIC applications provide critical insights for optimizing semiconductor device design and fabrication.