JP2016207769A - スリップリング、支持機構及びプラズマ処理装置 - Google Patents
スリップリング、支持機構及びプラズマ処理装置 Download PDFInfo
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- JP2016207769A JP2016207769A JP2015085881A JP2015085881A JP2016207769A JP 2016207769 A JP2016207769 A JP 2016207769A JP 2015085881 A JP2015085881 A JP 2015085881A JP 2015085881 A JP2015085881 A JP 2015085881A JP 2016207769 A JP2016207769 A JP 2016207769A
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- 229910052753 mercury Inorganic materials 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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Abstract
【解決手段】
一実施形態のスリップリングは、回転軸線周りで回転可能な導電性の回転子と、回転子と同軸に設けられた導電性の固定子と、回転子と固定子との間に配置される導電性の球体であり、回転子と固定子との間の電気的パスを形成する、該球体と、回転子及び固定子のうち一方と球体との間において設けられ、回転軸線に対して周方向に延在する導電性のコイルバネであり、回転子及び固定子のうち一方と球体とに接触する、該コイルバネと、を備える。
【選択図】図1
Description
R01=R1+RA+R4 …(1)
ここで、RAは、R2+R3である。
R01=R1+RA/n+R4 …(1a)
RB=R5+R6+R7+R8 …(2)
R03=R1+1/(1/(RA/n)+1/(RB/n))+R4 (3)
Claims (14)
- 回転軸線周りで回転可能な導電性の回転子と、
前記回転子と同軸に設けられた導電性の固定子と、
前記回転子と前記固定子との間に配置される導電性の球体であり、前記回転子と前記固定子との間の電気的パスを形成する、該球体と、
前記回転子及び前記固定子のうち一方と前記球体との間において設けられ、前記回転軸線に対して周方向に延在する導電性のコイルバネであり、前記回転子及び前記固定子のうち前記一方と前記球体とに接触する、該コイルバネと、を備えるスリップリング。 - 導電性の別のコイルバネを更に備え、
該別のコイルバネは、前記回転子及び前記固定子のうち他方と前記球体との間に設けられ、前記回転軸線に対して周方向に延在しており、前記回転子及び前記固定子のうち前記他方と前記球体とに接触する、請求項1に記載のスリップリング。 - 前記コイルバネ及び前記別のコイルバネは、前記回転軸線が延在する方向に配列されている、請求項2に記載のスリップリング。
- 前記コイルバネ及び前記別のコイルバネは、前記回転軸線に対して放射方向に配列されている、請求項2に記載のスリップリング。
- 前記コイルバネは、斜め巻きスプリングである、請求項1に記載のスリップリング。
- 前記コイルバネ及び前記別のコイルバネは、斜め巻きスプリングである、請求項2〜4の何れか一項に記載のスリップリング。
- プラズマ処理装置の処理容器内において被処理体を支持するための支持機構であって、
被処理体を保持するための保持部であり、第1軸線中心に回転可能な該保持部と、
前記保持部を回転させる駆動装置と、
各々が請求項1〜6の何れか一項に記載されたスリップリングであり、前記第1軸線に前記回転軸線が一致するように設けられた複数のスリップリングを有する回転コネクタと、
を備え、
前記保持部は、
下部電極と、
前記下部電極上に設けられた静電チャックと、
各々の中心軸線が前記第1軸線に一致するように同軸に設けられた複数の導体であり、前記静電チャックの電極膜に接続された第1導体、及び、前記下部電極に接続された第2導体を含む、該複数の導体と、
を有し、
前記複数のスリップリングのうち第1のスリップリングは前記第1導体に電気的に接続されており、前記複数のスリップリングのうち第2のスリップリングは前記第2導体に電気的に接続されている、支持機構。 - 前記保持部と共に密閉された空間を画成する容器部と、
前記容器部に結合され、前記第1軸線に直交する第2軸線に沿って延びる中空の傾斜軸部と、
前記傾斜軸部を前記第2軸線周りで回転させる別の駆動装置と、
を更に備え、
前記複数の導体、前記保持部を回転させる前記駆動装置、及び前記回転コネクタは、前記空間内に設けられている、請求項7に記載の支持機構。 - 被処理体に対してプラズマ処理を行うためのプラズマ処理装置であって、
処理容器と、
前記処理容器内にガスを供給するガス供給系と、
前記処理容器内に供給されたガスを励起させるプラズマ源と、
請求項7又は8に記載された支持機構であり、前記処理容器内において前記保持部により被処理体を保持する、該支持機構と、
前記処理容器内の空間の排気のための排気系と、
前記処理容器の外部に設けられ、前記静電チャックの前記電極膜に与えられる電圧を発生する直流電源と、
前記処理容器の外部に設けられ、前記下部電極に与えられるバイアスを発生するバイアス電力供給部と、
を備え、
前記直流電源は、第1配線を介して前記第1のスリップリングに接続されており、
前記バイアス電力供給部は、第2配線を介して前記第2のスリップリングに接続されている、プラズマ処理装置。 - 前記支持機構は、請求項8に記載された支持機構であり、
前記保持部及び前記容器部は、前記処理容器内に設けられており、
前記傾斜軸部は、前記処理容器の内部から該処理容器の外部まで延びるように設けられており、
前記第1配線は、前記傾斜軸部内を通って、前記直流電源と前記第1のスリップリングとを接続しており、
前記第2配線は、前記傾斜軸部内を通って、前記バイアス電力供給部と前記第2のスリップリングとを接続している、請求項9に記載のプラズマ処理装置。 - 前記保持部は、ヒータを更に有し、
前記複数の導体は、前記ヒータに接続する第3導体及び第4導体を更に有し、
前記複数のスリップリングは、前記第3導体に接続する第3のスリップリングと前記第4導体に接続する第4のスリップリングとを更に含み、
該プラズマ処理装置は、前記処理容器の外部に設けられ前記ヒータに電力を供給するヒータ電源を更に備え、
前記ヒータ電源は、前記傾斜軸部内を通る第3配線及び第4配線を介して、それぞれ前記第3のスリップリング及び前記第4のスリップリングに電気的に接続されている、請求項10に記載のプラズマ処理装置。 - 前記支持機構は、前記保持部に設けられた温度センサを更に含み、
前記複数の導体は、前記温度センサに接続する第5導体を更に有し、
前記複数のスリップリングは、前記第5導体に接続する第5のスリップリングを更に含み、
該プラズマ処理装置は、制御部を更に有し、
前記制御部は、前記傾斜軸部内を通る第5配線を介して前記第5のスリップリングに電気的に接続されている、請求項10又は11に記載のプラズマ処理装置。 - 前記バイアス電力供給部は、パルス変調された直流電圧を前記下部電極に供給する請求項9〜12の何れか一項に記載のプラズマ処理装置。
- 前記バイアス電力供給部は、前記パルス変調された直流電圧及び高周波バイアスを選択的に前記下部電極に供給する請求項13に記載のプラズマ処理装置。
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