JP5116806B2 - 複数の周波数に同時に応答する電極を備えたプラズマ処理装置の動作方法 - Google Patents
複数の周波数に同時に応答する電極を備えたプラズマ処理装置の動作方法 Download PDFInfo
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- JP5116806B2 JP5116806B2 JP2010135198A JP2010135198A JP5116806B2 JP 5116806 B2 JP5116806 B2 JP 5116806B2 JP 2010135198 A JP2010135198 A JP 2010135198A JP 2010135198 A JP2010135198 A JP 2010135198A JP 5116806 B2 JP5116806 B2 JP 5116806B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32137—Radio frequency generated discharge controlling of the discharge by modulation of energy
- H01J37/32155—Frequency modulation
- H01J37/32165—Plural frequencies
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- Plasma & Fusion (AREA)
- Plasma Technology (AREA)
- Drying Of Semiconductors (AREA)
- Chemical Vapour Deposition (AREA)
- ing And Chemical Polishing (AREA)
Description
Claims (12)
- 第1の電極と該第1の電極の周縁外側に配置された接地電極とを有し、前記第1の電極上の第1の領域と前記第1の電極と前記接地電極との間の第2の領域にプラズマを発生するプラズマ処理装置を動作させる方法であって、
前記第1の領域に第1の周波数の高周波の電圧を印加することにより、第1の周波数の高周波の電力を供給すると同時に前記第2の領域に前記第1の周波数よりも高い第2の周波数の高周波の電圧を印加することにより、前記第1の周波数よりも高い第2の周波数の高周波の電力を供給するステップと、
前記第1および第2の周波数の高周波の電力と前記第1の電極近傍のプラズマとの間の相互作用に応じて前記第1の電極に直流バイアス電圧を確立するステップと、
いずれか一方の前記周波数の高周波の電力に関連するパラメータをもう一方の前記周波数の高周波の電力に関連するパラメータに対して変更することによって前記第1の電極の直流バイアス電圧の値を制御するステップとを含む方法。 - 第1の電極と該第1の電極に対向して配置された所定のDC基準電位の第2の電極と前記第1の電極の周縁外側に配置された接地電極とを有するプラズマ処理装置を動作させる方法であって、第1の周波数の高周波の電力および該第1の周波数よりも高い第2の周波数の高周波の電力を前記第1の電極に同時に供給するステップと、前記第1の周波数の高周波を前記第1の電極と前記第2の電極とこれら第1及び第2の電極の間の領域とを含む領域を通過して前記第2の電極に至る経路を通過させるステップと、前記第2の周波数の高周波を前記領域を通過して前記接地電極に至る経路を通過させるステップと、前記第1の電極に供給される前記第1および第2の周波数の高周波の電力と前記第1の電極近傍のプラズマとの間の相互作用に応じて前記第1の電極にDCバイアス電圧を確立するステップと、いずれか一方の前記周波数の高周波の電力に関連するパラメータをもう一方の前記周波数の高周波の電力に関連するパラメータに対して変更することによって前記第1の電極のDCバイアス電圧の値を制御するステップとを含む方法。
- いずれか一方の前記周波数の電力に関連する前記パラメータが、前記第1の電極に印加される前記第1の周波数の高周波の電力量であり、前記第2の周波数の高周波の電力に関連する前記パラメータが前記第2の周波数の高周波の電力量である、請求項1又は2に記載の方法。
- 10MHzよりも低い前記第1の周波数の高周波が主として前記プラズマのイオン・エネルギーを制御し、10MHzよりも高い前記第2の周波数の高周波が主として前記プラズマのイオン密度を制御する、請求項3に記載の方法。
- 前記第1および第2の周波数がそれぞれ2MHzおよび27MHzである、請求項4に記載の方法。
- 前記第1および第2の周波数の高周波の電力を、前記第1の電極と第2の電極の間の領域を含む領域に集中させるステップと、前記第1の電極に印加される前記第1および第2の周波数の高周波の主な部分の電力を前記領域内に異なる経路を持たせるステップとをさらに含む、請求項3に記載の方法。
- 前記第1の周波数の前記経路が前記第1および第2の電極を含み、前記第2の周波数の前記経路が前記第2の電極を含まない、請求項6に記載の方法。
- 前記処理装置が、前記第2の電極のDC電位と同じDC電位の、前記第2の電極よりも前記第1の電極の方に近い他の経路を備え、前記第2の周波数の前記経路が前記第1の電極および前記他の経路を含む、請求項7に記載の方法。
- 前記プラズマを前記領域に閉じ込めるステップをさらに含む、請求項6に記載の方法。
- 前記領域内のプラズマの圧力を制御するステップをさらに含む、請求項9に記載の方法。
- 前記第2の電極の電位がDC基準電位である、請求項6乃至10のいずれかに記載の方法。
- 前記第2の周波数の高周波の電力量と前記第1の周波数の高周波の電力量の比率を変化させると前記第1の電極のDCバイアス電圧の値が前記電力量の比率に対して単調関数で変化するように前記真空チャンバが構成されている、請求項3に記載の方法。
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US10/180,978 | 2002-06-27 | ||
US10/180,978 US6841943B2 (en) | 2002-06-27 | 2002-06-27 | Plasma processor with electrode simultaneously responsive to plural frequencies |
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JP2004517690A Division JP4589722B2 (ja) | 2002-06-27 | 2003-06-20 | 複数の周波数に同時に応答する電極を備えたプラズマ処理装置 |
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JP2010135198A Expired - Lifetime JP5116806B2 (ja) | 2002-06-27 | 2010-06-14 | 複数の周波数に同時に応答する電極を備えたプラズマ処理装置の動作方法 |
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US (1) | US6841943B2 (ja) |
EP (1) | EP1516350B1 (ja) |
JP (2) | JP4589722B2 (ja) |
KR (1) | KR100908588B1 (ja) |
CN (2) | CN101039544B (ja) |
AU (1) | AU2003245583A1 (ja) |
IL (1) | IL165956A (ja) |
TW (1) | TWI315965B (ja) |
WO (1) | WO2004003963A2 (ja) |
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CN113785381A (zh) | 2019-04-30 | 2021-12-10 | 朗姆研究公司 | 用于极紫外光刻抗蚀剂改善的原子层蚀刻及选择性沉积处理 |
TWI837391B (zh) | 2019-06-26 | 2024-04-01 | 美商蘭姆研究公司 | 利用鹵化物化學品的光阻顯影 |
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JP2000269196A (ja) * | 1999-03-19 | 2000-09-29 | Toshiba Corp | プラズマ処理方法及びプラズマ処理装置 |
US6232236B1 (en) * | 1999-08-03 | 2001-05-15 | Applied Materials, Inc. | Apparatus and method for controlling plasma uniformity in a semiconductor wafer processing system |
US6562190B1 (en) * | 2000-10-06 | 2003-05-13 | Lam Research Corporation | System, apparatus, and method for processing wafer using single frequency RF power in plasma processing chamber |
US6770166B1 (en) * | 2001-06-29 | 2004-08-03 | Lam Research Corp. | Apparatus and method for radio frequency de-coupling and bias voltage control in a plasma reactor |
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JP3519066B2 (ja) * | 2001-08-27 | 2004-04-12 | 忠弘 大見 | プラズマプロセス用装置 |
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JP2005536834A (ja) | 2005-12-02 |
CN101039544A (zh) | 2007-09-19 |
CN100442430C (zh) | 2008-12-10 |
EP1516350A2 (en) | 2005-03-23 |
WO2004003963A2 (en) | 2004-01-08 |
US20040000875A1 (en) | 2004-01-01 |
AU2003245583A1 (en) | 2004-01-19 |
KR20050013253A (ko) | 2005-02-03 |
US6841943B2 (en) | 2005-01-11 |
CN1675737A (zh) | 2005-09-28 |
TW200402251A (en) | 2004-02-01 |
TWI315965B (en) | 2009-10-11 |
KR100908588B1 (ko) | 2009-07-22 |
AU2003245583A8 (en) | 2004-01-19 |
IL165956A0 (en) | 2006-01-15 |
WO2004003963A3 (en) | 2004-07-22 |
CN101039544B (zh) | 2011-05-04 |
JP2010282970A (ja) | 2010-12-16 |
IL165956A (en) | 2010-05-17 |
EP1516350B1 (en) | 2012-06-13 |
JP4589722B2 (ja) | 2010-12-01 |
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