• Title/Summary/Keyword: cross-link amorphous structure

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Electrical Properties of Organic Materials as Low Dielectric Constant Materials

  • Oh Teresa;Kim Hong Bae;Kwon Hak Yong;Son Jae Gu
    • Journal of the Semiconductor & Display Technology
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    • v.4 no.3 s.12
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    • pp.5-9
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    • 2005
  • The bonding structure of organic materials such as fluorinated amorphous carbon films was classified into two types due to the chemical shifts. The electrical properties of fluorinated amorphous carbon films also showed very different effect of two types notwithstanding a very little difference. Fluorinated amorphous carbon films with the cross-link break-age structure existed large leakage current resulting from effect of the electron tunneling. Increasing the cation due to the electron-deficient group increased the barrier height of the films with the cross-link amorphous structure, therefore the electric characteristic of the final materials with low dielectric constant was also improved. The lowest dielectric constant is 2.3 at the sample with the cross-link amorphous structure.

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Electrical Properties of Organic Materials as Low Dielectric Constant Materials

  • Oh Teresa;Kim Hong Bae;Kwon Hak Yong;Son Jae Gu
    • Proceedings of the Korean Society Of Semiconductor Equipment Technology
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    • 2005.05a
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    • pp.67-72
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    • 2005
  • The bonding structure of organic materials such as fluorinated amorphous carbon films was classified into two types due to the chemical shifts. The electrical properties of fluorinated amorphous carbon films also showed very different effect of two types notwithstanding a very little difference. Fluorinated amorphous carbon films with the cross-link breakage structure existed large leakage current resulting from effect of the electron tunneling. Increasing the cation due to the electron-deficient group increased the barrier height of the films with the cross-link amorphous structure, therefore the electric characteristic of the final materials with low dielectric constant was also improved. The lowest dielectric constant is 2.3 at the sample with the cross-link amorphous structure.

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Relationship between Dielectric Constant and Increament of Si-O bond in SiOC Film (SiOC 박막에서 Si-O 결합의 증가와 유전상수의 관계)

  • Oh, Teresa
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.11
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    • pp.4468-4472
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    • 2010
  • SiOC films made by the inductively coupled plasma chemical vapor deposition were researched the relationship between the dielectric constant and the chemical shift. SiOC film obtained by plasma method had the main Si-O-C bond with the molecule vibration mode in the range of $930{\sim}1230\;cm^{-1}$ which consists of C-O and Si-O bonds related to the cross link formation according to the dissociation and recombination. The C-O bond originated from the elongation effect by the neighboring highly electron negative oxygen atoms at terminal C-H bond in Si-$CH_3$ of $1270cm^{-1}$. However, the Si-O bond was formed from the second ionic sites recombined after the dissociation of Si-$CH_3$ of $1270cm^{-1}$. The increase of the Si-O bond induced the redshift as the shift of peak in FTIR spectra because of the increase of right shoulder in main bond. These results mean that SiOC films become more stable and stronger than SiOC film with dominant C-O bond. So it was researched that the roughness was also decreased due to the high degree of amorphous structure at SiOC film with the redshift after annealing.