Chin. Phys. Lett.  2003, Vol. 20 Issue (3): 423-426    DOI:
Original Articles |
An a-C:F:H Film with High Thermal Stability by Electron Cyclotron Resonance Chemical Vapor Deposition at Room Temperature
XIN Yu1;XU Sheng-Hua1;NING Zhao-Yuan1;LU Xin-Hua2;JIANG Mei-Fu1;HUANG Song1;DU Wei1;CHEN Jun1;YE Chao1;CHENG Shan-Hua1
1Department of Physics, Suzhou University, Suzhou 215006 2Center for Analyzing and Testing, Suzhou University, Suzhou 215006
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XIN Yu, XU Sheng-Hua, NING Zhao-Yuan et al  2003 Chin. Phys. Lett. 20 423-426
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Abstract Using CHF3/C6H6 gases, amorphous fluorinated hydrocarbon films (a-C:F:H) were deposited by electron cyclotron resonance (ECR) chemical vapor deposition at room temperature. Dependence of the film properties on variable flow ratios R[CHF3]/{[CHF3]+[C6H6]} was investigated by infrared absorption, x-ray photoelectron spectroscopy, measurements of the film thickness and dielectric constant. Evidences show that the film deposition rate decreases linearly with the increasing flow ratios R and the adding of C6H6 source gas to ECR plasma enhances structural cross-linking in the a-C:F:H films. In order to obtain good structural stability of these films, it is necessary to reconcile configurations between C-C bond and H or F terminal atoms carefully. The experimental results indicate that an a-C:F:H film with low dielectric constant (k < 3) and high thermal stability ( > 400°C) has been deposited successfully at R = 56.3%.
Keywords: 81.15.Gh      78.30.-j      82.80.Pv     
Published: 01 March 2003
PACS:  81.15.Gh (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.))  
  78.30.-j (Infrared and Raman spectra)  
  82.80.Pv (Electron spectroscopy (X-ray photoelectron (XPS), Auger electron spectroscopy (AES), etc.))  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2003/V20/I3/0423
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XIN Yu
XU Sheng-Hua
NING Zhao-Yuan
LU Xin-Hua
JIANG Mei-Fu
HUANG Song
DU Wei
CHEN Jun
YE Chao
CHENG Shan-Hua
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