Design of radial line slot antennas at 8.3 GHz for large area uniform plasma generation

Tetsuya Yamamoto; Nguyen Thang Chien; Makoto Ando; Naohisa Goto; Masaki Hirayama; Tadahiro Ohmi

Design of radial line slot antennas at 8.3 GHz for large area uniform plasma generation

Tetsuya Yamamoto, Nguyen Thang Chien, Makoto Ando, Naohisa Goto, Masaki Hirayama, Tadahiro Ohmi

New Industry Creation Hatchery Center (NICHe)

Research output: Contribution to journal › Article › peer-review

41 Citations (Scopus)

Abstract

A radial line slot antenna (RLSA) 400 mm in diameter is designed for a plasma source at 8.3 GHz as a candidate for a large area high density plasma source with a narrow process space. A RLSA with paired slots arrayed concentrically on its aperture is designed and applied to a plasma process system which does not need a magnetic field. First, electrical performance without plasma is predicted and measured. Reasonable voltage standing wave ratio (VSWR) as well as uniform field distribution on the antenna aperture is realized. As applied to the plasma test equipment, high electron density of more than 1 × 10¹² cm^-3 as well as fairly uniform (±2%) distribution at a low electron temperature is produced in the vicinity of the antenna aperture through a quartz glass window. Control of uniformity in ion flux profiles by blocking the antenna aperture is demonstrated.

Original language	English
Pages (from-to)	2082-2088
Number of pages	7
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	38
Issue number	4 A
Publication status	Published - 1999 Dec 1

Keywords

Ion flux
Planar waveguide
Plasma density
Plasma process
Radial line slot antenna

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Cite this

Design of radial line slot antennas at 8.3 GHz for large area uniform plasma generation. / Yamamoto, Tetsuya; Chien, Nguyen Thang; Ando, Makoto; Goto, Naohisa; Hirayama, Masaki; Ohmi, Tadahiro.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 38, No. 4 A, 01.12.1999, p. 2082-2088.

Research output: Contribution to journal › Article › peer-review

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abstract = "A radial line slot antenna (RLSA) 400 mm in diameter is designed for a plasma source at 8.3 GHz as a candidate for a large area high density plasma source with a narrow process space. A RLSA with paired slots arrayed concentrically on its aperture is designed and applied to a plasma process system which does not need a magnetic field. First, electrical performance without plasma is predicted and measured. Reasonable voltage standing wave ratio (VSWR) as well as uniform field distribution on the antenna aperture is realized. As applied to the plasma test equipment, high electron density of more than 1 × 1012 cm-3 as well as fairly uniform (±2%) distribution at a low electron temperature is produced in the vicinity of the antenna aperture through a quartz glass window. Control of uniformity in ion flux profiles by blocking the antenna aperture is demonstrated.",

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AU - Hirayama, Masaki

AU - Ohmi, Tadahiro

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AB - A radial line slot antenna (RLSA) 400 mm in diameter is designed for a plasma source at 8.3 GHz as a candidate for a large area high density plasma source with a narrow process space. A RLSA with paired slots arrayed concentrically on its aperture is designed and applied to a plasma process system which does not need a magnetic field. First, electrical performance without plasma is predicted and measured. Reasonable voltage standing wave ratio (VSWR) as well as uniform field distribution on the antenna aperture is realized. As applied to the plasma test equipment, high electron density of more than 1 × 1012 cm-3 as well as fairly uniform (±2%) distribution at a low electron temperature is produced in the vicinity of the antenna aperture through a quartz glass window. Control of uniformity in ion flux profiles by blocking the antenna aperture is demonstrated.

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Design of radial line slot antennas at 8.3 GHz for large area uniform plasma generation

Abstract

Keywords

ASJC Scopus subject areas

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