JP6204869B2 - 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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- 238000012545 processing Methods 0.000 title claims description 92
- 238000003672 processing method Methods 0.000 title claims description 8
- 230000005291 magnetic effect Effects 0.000 claims description 55
- 239000000758 substrate Substances 0.000 claims description 32
- 238000001020 plasma etching Methods 0.000 claims description 27
- 230000005284 excitation Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 description 50
- 239000004065 semiconductor Substances 0.000 description 43
- 238000009826 distribution Methods 0.000 description 35
- 238000005530 etching Methods 0.000 description 28
- 230000002093 peripheral effect Effects 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005259 measurement Methods 0.000 description 9
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 240000006829 Ficus sundaica Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- H—ELECTRICITY
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
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- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
- H01L21/32136—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only using plasmas
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- 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
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- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
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- H01J37/32669—Particular magnets or magnet arrangements for controlling the discharge
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
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- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
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- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
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- H01J2237/334—Etching
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Plasma Technology (AREA)
Description
チャンバ内圧力:5.32Pa(40mTorr)
処理ガス:C4F8/C4F6/Ar/O2=35/10/400/20sccm
第1の高周波:周波数100MHz、電力300W、パルス周期50kHz、デューティー比20%
第2の高周波:周波数3.2MHzMHz、電力10000W
処理時間:60秒
[他の実施形態または変形例]
12 チャンバ(処理容器)
14 載置台
26 上部電極
18 (プラズマ生成用)の第1の高周波電源
20 (イオン引き込み用)の第2の高周波電源
32 電磁石
34 ヨーク部材
36,38,40,42 コイル
44 柱状部
46,48,50,52 円筒部
54 バックプレート部
56 コイル励起回路
60 制御部
Claims (4)
- 被処理基板に処理ガスのプラズマを作用させて処理を施すプラズマ処理装置であって、
前記被処理基板を出し入れ可能に収容する処理容器と、
前記処理容器内に配設され、前記被処理基板が載置される下部電極と、
前記処理容器内に配設され、プラズマ生成空間を介して前記下部電極と対向する上部電極と、
前記上部電極と前記下部電極との間に高周波電力を印加する高周波電源と、
前記処理容器の上部または上方で前記下部電極の中心を上下方向に通過する中心軸線を中心とする1つまたは複数の環状コイルを有する電磁石と、
前記電磁石の各環状コイルに励起電流を供給するための電磁石励起回路と、
前記被処理基板の上に形成されるイオンシースとバルクプラズマとの界面の勾配を制御するために、前記電磁石励起回路を通じて前記電磁石のいずれかの環状コイルを選択的に通電してその周囲に磁界を発生させる制御部と
を有し、
前記上部電極と前記下部電極との間の電極間ギャップが、前記下部電極の中心を通る鉛直の中心軸線に対して軸対称のプロファイルを有し、半径方向において前記中心軸線から前記下部電極上に載置される前記被処理基板のエッジの位置に対応する第1の位置まで延びる第1の領域では均一なギャップ幅を有し、前記第1の位置からそれより半径方向外側の第2の位置まで延びる第2の領域ではテーパ状に狭まるギャップ幅を有し、
前記電磁石の環状コイルの1つが、前記第1の位置と上下方向で重なっており、
前記被処理基板の周辺部の上でイオンシースとバルクプラズマとの界面の勾配を平坦化するために、前記第1の位置と上下方向で重なっている環状コイルを選択的に通電させる、
プラズマ処理装置。 - 複数の前記環状コイルは、同じ面内で同心状に配置される、請求項1に記載のプラズマ処理装置。
- 前記電磁石は、各々の前記コイルの下面を除いてその内周面、外周面および上面を覆うヨークを有する、請求項2に記載のプラズマ処理装置。
- 請求項1に記載のプラズマ処理装置を用いて被処理基板にプラズマ処理を施すプラズマ処理方法であって、
前記被処理基板の上でイオンシースとバルクプラズマとの界面の勾配を平坦化することによって、プラズマエッチングにより前記被処理基板上の被エッチング材に形成されるパターンにチルティングが発生することを抑制することを特徴とするプラズマ処理方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014079837A JP6204869B2 (ja) | 2014-04-09 | 2014-04-09 | プラズマ処理装置及びプラズマ処理方法 |
US15/124,589 US10074545B2 (en) | 2014-04-09 | 2015-02-26 | Plasma processing apparatus and plasma processing method |
CN201580013158.5A CN106104769B (zh) | 2014-04-09 | 2015-02-26 | 等离子体处理装置和等离子体处理方法 |
KR1020167024629A KR102361240B1 (ko) | 2014-04-09 | 2015-02-26 | 플라즈마 처리 장치 및 플라즈마 처리 방법 |
KR1020227003784A KR102434088B1 (ko) | 2014-04-09 | 2015-02-26 | 플라즈마 처리 장치 및 플라즈마 처리 방법 |
KR1020247002420A KR20240015728A (ko) | 2014-04-09 | 2015-02-26 | 플라즈마 처리 장치 및 플라즈마 처리 방법 |
KR1020227027285A KR102630511B1 (ko) | 2014-04-09 | 2015-02-26 | 플라즈마 처리 장치 |
PCT/JP2015/000997 WO2015155923A1 (ja) | 2014-04-09 | 2015-02-26 | プラズマ処理装置及びプラズマ処理方法 |
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JP2014079837A JP6204869B2 (ja) | 2014-04-09 | 2014-04-09 | プラズマ処理装置及びプラズマ処理方法 |
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JP2017168240A Division JP6462072B2 (ja) | 2017-09-01 | 2017-09-01 | プラズマ処理装置及びプラズマ処理方法 |
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JP6204869B2 true JP6204869B2 (ja) | 2017-09-27 |
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US (1) | US10074545B2 (ja) |
JP (1) | JP6204869B2 (ja) |
KR (4) | KR102630511B1 (ja) |
CN (1) | CN106104769B (ja) |
WO (1) | WO2015155923A1 (ja) |
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US10957561B2 (en) | 2015-07-30 | 2021-03-23 | Lam Research Corporation | Gas delivery system |
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US10699878B2 (en) | 2016-02-12 | 2020-06-30 | Lam Research Corporation | Chamber member of a plasma source and pedestal with radially outward positioned lift pins for translation of a substrate c-ring |
US10438833B2 (en) | 2016-02-16 | 2019-10-08 | Lam Research Corporation | Wafer lift ring system for wafer transfer |
US11011353B2 (en) | 2016-03-29 | 2021-05-18 | Lam Research Corporation | Systems and methods for performing edge ring characterization |
US10312121B2 (en) * | 2016-03-29 | 2019-06-04 | Lam Research Corporation | Systems and methods for aligning measurement device in substrate processing systems |
US10410832B2 (en) | 2016-08-19 | 2019-09-10 | Lam Research Corporation | Control of on-wafer CD uniformity with movable edge ring and gas injection adjustment |
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JP6937644B2 (ja) * | 2017-09-26 | 2021-09-22 | 東京エレクトロン株式会社 | プラズマ処理装置及びプラズマ処理方法 |
JP2019109980A (ja) * | 2017-12-15 | 2019-07-04 | 株式会社日立ハイテクノロジーズ | プラズマ処理装置 |
JP7038593B2 (ja) * | 2018-04-16 | 2022-03-18 | 東京エレクトロン株式会社 | 処理装置及び処理装置の制御方法 |
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JP2005303099A (ja) | 2004-04-14 | 2005-10-27 | Hitachi High-Technologies Corp | プラズマ処理装置およびプラズマ処理方法 |
JP4593413B2 (ja) * | 2005-09-15 | 2010-12-08 | 株式会社日立ハイテクノロジーズ | プラズマ処理方法及び処理装置 |
JP4884047B2 (ja) * | 2006-03-23 | 2012-02-22 | 東京エレクトロン株式会社 | プラズマ処理方法 |
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JP5264231B2 (ja) * | 2008-03-21 | 2013-08-14 | 東京エレクトロン株式会社 | プラズマ処理装置 |
KR101117922B1 (ko) * | 2008-03-27 | 2012-03-14 | 도쿄엘렉트론가부시키가이샤 | 전극 구조체 및 기판 처리 장치 |
JP2012164766A (ja) * | 2011-02-04 | 2012-08-30 | Ulvac Japan Ltd | エッチング装置 |
JP6009171B2 (ja) * | 2012-02-14 | 2016-10-19 | 東京エレクトロン株式会社 | 基板処理装置 |
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KR20160141711A (ko) | 2016-12-09 |
CN106104769B (zh) | 2019-07-19 |
KR102434088B1 (ko) | 2022-08-18 |
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