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Nakagaki, Keita; Yamauchi, Toshihiko; Kanno, Yoshinori*; Kobayashi, Seiji*; Takemoto, Ryo*
Japanese Journal of Applied Physics, 47(3), p.1745 - 1747, 2008/03
Times Cited Count：2 Percentile：9.78(Physics, Applied)The CVD system with internal RF multi-turn antenna coil for 27.12 MHz was developed, and to study the transition between CCP (Capacitively Coupled Plasma) and ICP (Inductively Coupled Plasma). The observed transition was classified into three types of transition: the standard transition, the direct transition without the CCP-mode and the repeated transition. The power boundary condition for each transition which is associated with the gas pressure and RF power is presented. Here, the standard transition was mainly presented: The transition time was 8 
s at 10 Pa, which became longer with the increase of gas pressure. The increments of electron temperature and density by the transition into ICP were three times and double figures higher respectively.
Nakagaki, Keita; Yamauchi, Toshihiko; Kanno, Yoshinori*; Kobayashi, Seiji*
Japanese Journal of Applied Physics, 47(1), p.797 - 799, 2008/01
Times Cited Count：1 Percentile：5.14(Physics, Applied)The CVD system by 27.12 MHz RF heating plasma discharge was developed to investigate the synthesis of the advanced ceramics, particularly diamond. Our system was unique, whose four turns RF antenna coil was installed inside of chamber. Here, we found the interesting physical behavior for the first time which the charge coupled plasma (CCP) changed to the inductively coupled plasma (ICP) suddenly at the threshold power. The plasma characteristics which were measured by the double probe were Te
10 eV and ne 10E11 cm
suitable for the dissociation. No impurity was observed in plasma, judging from the spectroscopic measurement. The ball-like diamond was synthesized on the silicon (Si) substrate by the low power RF heating plasma.
Yamauchi, Toshihiko; Nakagaki, Keita*; Kanno, Yoshinori*; Kobayashi, Seiji*; Saigusa, Mikio*; Takemoto, Ryo*; Yamashita, Naohito*; Kawashima, Tomohiro*
no journal, ,
no abstracts in English
Yamauchi, Toshihiko; Nakagaki, Keita; Kanno, Yoshinori*; Kobayashi, Seiji*; Takemoto, Ryo*
no journal, ,
no abstracts in English
Yamauchi, Toshihiko; Nakagaki, Keita; Kanno, Yoshinori*; Kobayashi, Seiji*; Takemoto, Ryo*
no journal, ,
The CVD system with internal RF multi-turn antenna coil for 27.12 MHz was developed, and to study the transition between CCP (Capacitively Coupled Plasma) and ICP (Inductively Coupled Plasma). The observed transition was classified into three types of transition: the standard transition, the direct transition with the mixed-mode and the repeated transition. The power boundary condition for each transition which is associated with the gas pressure and RF power is presented. Here, the standard transition was mainly presented: The transition time was 8 microsec at 10 Pa, which became longer with the increase of gas pressure. The increments of electron temperature and density by the transition into ICP were three times and double figures higher respectively.
Yamauchi, Toshihiko; Nakagaki, Keita; Kanno, Yoshinori*; Kobayashi, Seiji*; Takemoto, Ryo*
no journal, ,
no abstracts in English
Yamauchi, Toshihiko; Takemoto, Ryo*; Kanno, Yoshinori*; Kobayashi, Seiji*; Nakagaki, Keita*; Kato, Hatsuhiro*
no journal, ,
no abstracts in English
Yamauchi, Toshihiko; Takemoto, Ryo*; Yabuno, Masahiro*; Kanno, Yoshinori*; Kobayashi, Seiji*; Shiramizu, Miho*; Takei, Toru*; Kato, Hatsuhiro*; Nakagaki, Keita*
no journal, ,
no abstracts in English
