Preparation of large uniform amorphous silicon films by VHF-PECVD using a ladder-shaped antenna

We have succeeded in preparing very uniform hydrogenated amorphous Si (a-Si/H) films by VHF plasma CVD at 60 MHz using as an electrode a ladder-shaped antenna. The rf power was applied to eight loading points on the ladder-shaped antenna. In order to supply equal rf power at the each loading point,...

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Veröffentlicht in:Thin solid films 2001-05, Vol.386 (2), p.133-136
Hauptverfasser: Takeuchi, Yoshiaki, Nawata, Yoshikazu, Ogawa, Kazuhiko, Serizawa, Akira, Yamauchi, Yasuhiro, Murata, Masayoshi
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container_end_page 136
container_issue 2
container_start_page 133
container_title Thin solid films
container_volume 386
creator Takeuchi, Yoshiaki
Nawata, Yoshikazu
Ogawa, Kazuhiko
Serizawa, Akira
Yamauchi, Yasuhiro
Murata, Masayoshi
description We have succeeded in preparing very uniform hydrogenated amorphous Si (a-Si/H) films by VHF plasma CVD at 60 MHz using as an electrode a ladder-shaped antenna. The rf power was applied to eight loading points on the ladder-shaped antenna. In order to supply equal rf power at the each loading point, the power divider was introduced between the electrode and a matching box, which enables the distribution of the feeding rf power at the each point less than 10%. a-Si/H Films were deposited on 400×500-mm glass substrates using pure silane gas. Films produced by this method showed a uniformity of ±10% over the substrate with a high deposition rate of 1.5 nm/s.
doi_str_mv 10.1016/S0040-6090(00)01663-1
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subjects Amorphous Si films
Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.)
Cross-disciplinary physics: materials science
rheology
Deposition
Exact sciences and technology
Ladder-shaped antenna
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Physics
VHF-PECVD
title Preparation of large uniform amorphous silicon films by VHF-PECVD using a ladder-shaped antenna
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