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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- 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
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- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
- H10P50/20—Dry etching; Plasma etching; Reactive-ion etching
- H10P50/26—Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials
- H10P50/264—Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials by chemical means
- H10P50/266—Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials by chemical means by vapour etching only
- H10P50/267—Dry etching; Plasma etching; Reactive-ion etching of conductive or resistive materials by chemical means by vapour etching only using plasmas
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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
- H01J37/32431—Constructional details of the reactor
- H01J37/32532—Electrodes
- H01J37/32568—Relative arrangement or disposition of electrodes; moving means
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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
- H01J37/32431—Constructional details of the reactor
- H01J37/32623—Mechanical discharge control means
- H01J37/32642—Focus rings
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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
- H01J37/32431—Constructional details of the reactor
- H01J37/3266—Magnetic control means
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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
- H01J37/32431—Constructional details of the reactor
- H01J37/3266—Magnetic control means
- H01J37/32669—Particular magnets or magnet arrangements for controlling the discharge
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
- H05H1/4645—Radiofrequency discharges
- H05H1/4652—Radiofrequency discharges using inductive coupling means, e.g. coils
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/60—Formation of materials, e.g. in the shape of layers or pillars of insulating materials
- H10P14/65—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials
- H10P14/6502—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed before formation of the materials
- H10P14/6512—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed before formation of the materials by exposure to a gas or vapour
- H10P14/6514—Formation of materials, e.g. in the shape of layers or pillars of insulating materials characterised by treatments performed before or after the formation of the materials of treatments performed before formation of the materials by exposure to a gas or vapour by exposure to a plasma
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
- H10P50/20—Dry etching; Plasma etching; Reactive-ion etching
- H10P50/24—Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials
- H10P50/242—Dry etching; Plasma etching; Reactive-ion etching of semiconductor materials of Group IV materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P50/00—Etching of wafers, substrates or parts of devices
- H10P50/20—Dry etching; Plasma etching; Reactive-ion etching
- H10P50/28—Dry etching; Plasma etching; Reactive-ion etching of insulating materials
- H10P50/282—Dry etching; Plasma etching; Reactive-ion etching of insulating materials of inorganic materials
- H10P50/283—Dry etching; Plasma etching; Reactive-ion etching of insulating materials of inorganic materials by chemical means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/04—Apparatus for manufacture or treatment
- H10P72/0402—Apparatus for fluid treatment
- H10P72/0418—Apparatus for fluid treatment for etching
- H10P72/0421—Apparatus for fluid treatment for etching for drying etching
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
- H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping
- H10P72/72—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping using electrostatic chucks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electromagnetism (AREA)
- Spectroscopy & Molecular Physics (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 |
| 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 |
| KR1020227003784A KR102434088B1 (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 |
| KR1020247002420A KR102839720B1 (ko) | 2014-04-09 | 2015-02-26 | 플라즈마 처리 장치 |
| KR1020167024629A KR102361240B1 (ko) | 2014-04-09 | 2015-02-26 | 플라즈마 처리 장치 및 플라즈마 처리 방법 |
| 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 |
| US15/124,589 US10074545B2 (en) | 2014-04-09 | 2015-02-26 | Plasma processing apparatus and plasma processing method |
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| 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 |
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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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| JP2015201552A JP2015201552A (ja) | 2015-11-12 |
| JP6204869B2 true JP6204869B2 (ja) | 2017-09-27 |
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| JP2014079837A Active 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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| Country | Link |
|---|---|
| US (1) | US10074545B2 (ja) |
| JP (1) | JP6204869B2 (ja) |
| KR (4) | KR102839720B1 (ja) |
| CN (1) | CN106104769B (ja) |
| WO (1) | WO2015155923A1 (ja) |
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| JP4094040B2 (ja) * | 2006-08-18 | 2008-06-04 | 株式会社エフオーアイ | プラズマ発生装置 |
| 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 |
| JP5231308B2 (ja) * | 2009-03-31 | 2013-07-10 | 東京エレクトロン株式会社 | プラズマ処理装置 |
| 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 |
-
2014
- 2014-04-09 JP JP2014079837A patent/JP6204869B2/ja active Active
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2015
- 2015-02-26 CN CN201580013158.5A patent/CN106104769B/zh active Active
- 2015-02-26 US US15/124,589 patent/US10074545B2/en active Active
- 2015-02-26 KR KR1020247002420A patent/KR102839720B1/ko active Active
- 2015-02-26 KR KR1020167024629A patent/KR102361240B1/ko active Active
- 2015-02-26 WO PCT/JP2015/000997 patent/WO2015155923A1/ja not_active Ceased
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|---|---|
| WO2015155923A1 (ja) | 2015-10-15 |
| CN106104769B (zh) | 2019-07-19 |
| KR20160141711A (ko) | 2016-12-09 |
| CN106104769A (zh) | 2016-11-09 |
| KR102434088B1 (ko) | 2022-08-18 |
| JP2015201552A (ja) | 2015-11-12 |
| KR102839720B1 (ko) | 2025-07-28 |
| KR20220113555A (ko) | 2022-08-12 |
| KR20220021032A (ko) | 2022-02-21 |
| US20170018407A1 (en) | 2017-01-19 |
| US10074545B2 (en) | 2018-09-11 |
| KR20240015728A (ko) | 2024-02-05 |
| KR102361240B1 (ko) | 2022-02-09 |
| KR102630511B1 (ko) | 2024-01-29 |
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