Plasma Characteristics of Large Area Inductively Coupled Plasma System Using Ferrite-Module-Enhanced U-Type Antenna
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概要
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A ferrite-module-enhanced internal-type linear inductively coupled plasma (ICP) source having multiple U-type antennas operated at 2 MHz has been proposed as a promising candidate to serve as an efficient high-density plasma source for plasma processing areas larger than $2{,}000\times 2{,}300$ mm2. When the ICP source was operated at 2 MHz RF power with the ferrite module, high density plasmas on the order of $2.9\times 10^{11}$ cm-3 were obtained at 10 mTorr Ar by applying 4 kW RF power/one U-type antenna; this is 1.5 times higher than the densities obtained at 13.56 MHz without the ferrite module. The higher plasma density obtained with the ICP source operated at 2 MHz with the ferrite module compared with that operated at 13.56 MHz without the ferrite module is related to the magnetic field enhancement caused by the ferrite module. The etch uniformity on a substrate of $2{,}300\times 2{,}000$ mm2 at 15 mTorr Ar/O2 ($7:3$) and about 2.3 kW/U-type antenna was about 11%.
- 2009-11-25
著者
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Lim Jong
Department Of Advanced Materials Science And Engineering Sungkyunkwan University
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Yeom Geun
Department Of Advanced Materials Science And Engineering Sungkyunkwan University
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Kim Kyong
Department Of Anesthesiology And Pain Medicine Himchan Hospital
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Yeom Geun
Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Korea
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Lim Jong
Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Korea
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Lim Jong
Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon, Gyunggi-do 440-746, Korea
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Kim Kyong
Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746, Korea
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Kim Kyong
Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon, Gyunggi-do 440-746, Korea
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Yeom Geun
Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon, Gyunggi-do 440-746, Korea
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Yeom Geun
Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon, Gyeonggi 440-746, Republic Korea
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Kim Kyong
Department of Advanced Materials Engineering, Sungkyunkwan University, Suwon, Gyeonggi 440-746, Republic Korea
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