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Study of Cu diffusion behavior in carbon rich SiCN:H films deposited from trimethylphenylsilane Full article

Journal Thin Solid Films
ISSN: 1879-2731 , E-ISSN: 0040-6090
Output data Year: 2015, Volume: 588, Pages: 39-43 Pages count : 5 DOI: 10.1016/j.tsf.2015.04.058
Tags Low-k dielectrics, PECVD, Silicon carbide films SiC:H, Silicon carbonitride films SiCN:H, Nano-porosity, Cu diffusion
Authors Ermakova E. 1 , Mogilnikov K. 2 , Rumyantsev Yu. 1 , Kichay V. 1 , Maximovskii E. 1 , Semenova O. 2 , Kosinova M. 1
Affiliations
1 Nikolaev Institute of Inorganic Chemistry SB RAS,
2 Rzhanov Institute of Semiconductor Physics SB RAS

Abstract: Amorphous SiCx:H and SiCxNy:H films were grown on Si (100) substrates by plasma enhanced chemical vapor deposition using trimethylphenylsilane as a precursor. Detailed studies including Fourier transformed infra-red spectrometry, elemental analysis, transmission electron microscopy, dielectric constant and porosity investigations, and preliminary Cu diffusion experiments were performed. It was shown that the films contained pores connected by narrow channels with a diameter of 5 Å, and the total porosity did not exceed 1.5%. The film with both low dielectric constant and low porosity was chosen for Cu diffusion barrier experiments. Si/SiCx:H/Cu structure was created and then annealed. The investigation of cross-sectional cut suggested that the film had good barrier properties against copper diffusion.
Cite: Ermakova E. , Mogilnikov K. , Rumyantsev Y. , Kichay V. , Maximovskii E. , Semenova O. , Kosinova M.
Study of Cu diffusion behavior in carbon rich SiCN:H films deposited from trimethylphenylsilane
Thin Solid Films. 2015. V.588. P.39-43. DOI: 10.1016/j.tsf.2015.04.058 WOS Scopus РИНЦ OpenAlex
Dates:
Submitted: Nov 14, 2014
Accepted: Apr 11, 2015
Published online: Apr 24, 2015
Published print: Aug 3, 2015
Identifiers:
≡ Web of science: WOS:000354118400006
≡ Scopus: 2-s2.0-84929169747
≡ Elibrary: 24031430
≡ OpenAlex: W2063416540
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