JP5496568B2 - プラズマ処理装置及びプラズマ処理方法 - Google Patents
プラズマ処理装置及びプラズマ処理方法 Download PDFInfo
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- JP5496568B2 JP5496568B2 JP2009181738A JP2009181738A JP5496568B2 JP 5496568 B2 JP5496568 B2 JP 5496568B2 JP 2009181738 A JP2009181738 A JP 2009181738A JP 2009181738 A JP2009181738 A JP 2009181738A JP 5496568 B2 JP5496568 B2 JP 5496568B2
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- 238000003672 processing method Methods 0.000 title claims description 7
- 238000009826 distribution Methods 0.000 claims description 54
- 239000000758 substrate Substances 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000007789 gas Substances 0.000 description 39
- 238000000034 method Methods 0.000 description 26
- 238000001020 plasma etching Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 21
- 239000004065 semiconductor Substances 0.000 description 20
- 238000005530 etching Methods 0.000 description 17
- 238000009792 diffusion process Methods 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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
- H01J37/32091—Radio frequency generated discharge the radio frequency energy being capacitively coupled to the plasma
-
- 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
-
- 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
- H01J37/32174—Circuits specially adapted for controlling the RF 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
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32715—Workpiece holder
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Plasma Technology (AREA)
- Cleaning Or Drying Semiconductors (AREA)
Description
Claims (6)
- 内部に基板を収容可能とされた処理チャンバーと、
前記処理チャンバー内に配置され、前記基板が載置される載置台を兼ねた下部電極と、
前記処理チャンバー内に、前記下部電極と対向するように配置された上部電極と、
前記下部電極又は前記上部電極にプラズマ生成用の第1の周波数の高周波電力を印加するための第1の高周波電源と、
前記下部電極に、前記第1の周波数より周波数の低いイオン引き込み用の第2の周波数の高周波電力を印加するための第2の高周波電源と、
前記下部電極と電気的に絶縁された状態で、当該下部電極上の少なくとも周縁部に設けられたバイアス分布制御用電極と、
前記バイアス分布制御用電極に、前記第2の周波数より周波数の低い第3の周波数の矩形波の電圧を印加するためのバイアス分布制御用電源と
を具備したことを特徴とするプラズマ処理装置。 - 請求項1記載のプラズマ処理装置であって、
前記バイアス分布制御用電極が、同心状に分割されて複数設けられていることを特徴とするプラズマ処理装置。 - 請求項2記載のプラズマ処理装置であって、
前記複数のバイアス分布制御用電極に、夫々別の前記バイアス分布制御用電源が接続されている
ことを特徴とするプラズマ処理装置。 - 請求項1〜3いずれか1項記載のプラズマ処理装置であって、
前記バイアス分布制御用電極が、前記基板を静電吸着する静電チャックの電極を兼ねている
ことを特徴とするプラズマ処理装置。 - 請求項1〜4いずれか1項記載のプラズマ処理装置であって、
前記バイアス分布制御用電源から周波数が100KHz〜1MHz、電圧が1〜500Vの電圧を印加する
ことを特徴とするプラズマ処理装置。 - 内部に基板を収容可能とされた処理チャンバーと、
前記処理チャンバー内に配置され、前記基板が載置される載置台を兼ねた下部電極と、
前記処理チャンバー内に、前記下部電極と対向するように配置された上部電極と、
前記下部電極又は前記上部電極にプラズマ生成用の第1の周波数の高周波電力を印加するための第1の高周波電源と、
前記下部電極に、前記第1の周波数より周波数の低いイオン引き込み用の第2の周波数の高周波電力を印加するための第2の高周波電源と、
を具備したプラズマ処理装置を用いたプラズマ処理方法であって、
当該下部電極上の少なくとも周縁部に、前記下部電極と電気的に絶縁された状態のバイアス分布制御用電極を設け、
前記バイアス分布制御用電極に、バイアス分布制御用電源から前記第2の周波数より周波数の低い第3の周波数の矩形波の電圧を印加して前記下部電極上のバイアス分布を制御する
ことを特徴とするプラズマ処理方法。
Priority Applications (5)
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JP2009181738A JP5496568B2 (ja) | 2009-08-04 | 2009-08-04 | プラズマ処理装置及びプラズマ処理方法 |
CN201010236449XA CN101990353B (zh) | 2009-08-04 | 2010-07-22 | 等离子处理装置和等离子处理方法 |
KR1020100073806A KR101677239B1 (ko) | 2009-08-04 | 2010-07-30 | 플라즈마 처리 장치 및 플라즈마 처리 방법 |
US12/848,342 US9275836B2 (en) | 2009-08-04 | 2010-08-02 | Plasma processing apparatus and plasma processing method |
TW099125742A TWI553729B (zh) | 2009-08-04 | 2010-08-03 | Plasma processing method |
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JP2009181738A JP5496568B2 (ja) | 2009-08-04 | 2009-08-04 | プラズマ処理装置及びプラズマ処理方法 |
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JP5496568B2 true JP5496568B2 (ja) | 2014-05-21 |
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US (1) | US9275836B2 (ja) |
JP (1) | JP5496568B2 (ja) |
KR (1) | KR101677239B1 (ja) |
CN (1) | CN101990353B (ja) |
TW (1) | TWI553729B (ja) |
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US20110031217A1 (en) | 2011-02-10 |
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