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Integration Issues for Low Dielectric Constant Materials in each Generation of ULSI'S

  • Hideki Gomi (a1), Koji Kishimoto (a1), Tatsuya Usami (a1), Ken-ichi Koyanagi (a1), Takashi Yokoyama (a1), Noriaki Oda (a1) and Yoshihisa Matsubara (a1)...

Abstract

The technologies utilizing Fluorinated Silicon Oxide (FSG, k=3.6) and Hydrogen Silsesquioxane (HSQ, k=3.0) have been established for 0.25-μm and 0.18-μm generation ULSIs. However, low-k materials for the next generation ULSIs, which have a dielectric constant of less than 3.0, have not become mature yet. In this paper, we review process integration issues in applying FSG and HSQ, and describe integration results and device performance using Fluorinated Amorphous Carbon (a-C:F, k=2.5) as one of the promising low-k materials for the next generation ULSIs.

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Integration Issues for Low Dielectric Constant Materials in each Generation of ULSI'S

  • Hideki Gomi (a1), Koji Kishimoto (a1), Tatsuya Usami (a1), Ken-ichi Koyanagi (a1), Takashi Yokoyama (a1), Noriaki Oda (a1) and Yoshihisa Matsubara (a1)...

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