JP6159172B2 - 温度制御方法及びプラズマ処理装置 - Google Patents
温度制御方法及びプラズマ処理装置 Download PDFInfo
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- JP6159172B2 JP6159172B2 JP2013133414A JP2013133414A JP6159172B2 JP 6159172 B2 JP6159172 B2 JP 6159172B2 JP 2013133414 A JP2013133414 A JP 2013133414A JP 2013133414 A JP2013133414 A JP 2013133414A JP 6159172 B2 JP6159172 B2 JP 6159172B2
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- 238000000034 method Methods 0.000 title claims description 141
- 238000012545 processing Methods 0.000 title claims description 73
- 230000008569 process Effects 0.000 claims description 118
- 238000010926 purge Methods 0.000 claims description 26
- 238000009832 plasma treatment Methods 0.000 claims description 10
- 239000011261 inert gas Substances 0.000 claims description 7
- 238000005530 etching Methods 0.000 description 38
- 239000007789 gas Substances 0.000 description 26
- 239000002245 particle Substances 0.000 description 25
- 238000012546 transfer Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000004380 ashing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- BSYNRYMUTXBXSQ-UHFFFAOYSA-N Aspirin Chemical compound CC(=O)OC1=CC=CC=C1C(O)=O BSYNRYMUTXBXSQ-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006870 function Effects 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
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
- H01J37/32724—Temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- 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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67248—Temperature monitoring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6831—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using electrostatic chucks
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Description
最初に、後述するエッチング工程を実行するプラズマ処理装置の一例について説明する。本実施形態に係る温度制御方法を実施できるプラズマ処理装置としては、特に限定されないが、被処理体としての半導体ウエハW(以後、ウエハWと呼ぶ)にRIE(Reactive Ion Etching)処理やアッシング処理等のプラズマ処理を施すことができる、平行平板型(容量結合型とも言う)のプラズマ処理装置が挙げられる。
静電チャック40とウエハWとの温度差は、予め高温に制御した静電チャック40上にウエハWを載置した場合、高温に制御していない静電チャック40上にウエハWを載置した場合に比べて大きくなる。静電チャック40とウエハWとの温度差が大きくなると、ウエハWと静電チャック40との間に生じる熱膨張差が大きくなる。よって、静電チャック40とウエハWとの間の熱膨張差は、予め高温に制御した静電チャック40上にウエハWを載置した場合、高温に制御していない静電チャック40上にウエハWを載置した場合に比べて大きくなる。
次に、発明者は、静電チャックとウエハWとの温度差と、ウエハWの裏面に発生するパーティクルの数との関係についての実験を行った。その実験の結果を図4に示す。
図5に示した温度制御処理が開始されると、制御部100は、プラズマ処理装置1にウエハが搬入されたかを判定する(ステップS10)。制御部100は、ウエハWが搬入されるまでステップS10の処理を繰り返し、ウエハが搬入された場合、ステップS12に進む。
10:処理容器
12:載置台(下部電極)
40:静電チャック
15:高周波電源
38:シャワーヘッド(上部電極)
32:高周波電源
75:ヒータ
100:制御部
Claims (8)
- 温度調節可能な静電チャックを第1の温度に制御した状態で処理室内にて被処理体の第1のプラズマ処理を実行した後、前記静電チャックの温度を前記第1の温度よりも低い第2の温度に段階的に制御する降温制御工程と、
前記第1のプラズマ処理を実行した後、前記処理室内を不活性ガスによりパージするパージ工程と、
前記第2の温度に制御した状態で前記処理室内にて被処理体の第2のプラズマ処理を実行する工程と、を含み、
前記降温制御工程と前記パージ工程とは、少なくとも一部が並行して行われる、ことを特徴とする温度制御方法。 - 被処理体を前記処理室内に搬入した後、前記第1のプラズマ処理を開始する前に前記静電チャックの温度を、被処理体を搬入したときよりも高い前記第1の温度に制御する昇温制御工程、
を更に含むことを特徴とする請求項1に記載の温度制御方法。 - 前記第1のプラズマ処理を実行した後、前記第1のプラズマ処理を実行しているときの圧力よりも高い圧力に制御する圧力制御工程、
を含むことを特徴とする請求項1又は2に記載の温度制御方法。 - 前記降温制御工程と前記パージ工程と前記圧力制御工程とは、
少なくとも一部が並行して行われる、
ことを特徴とする請求項3に記載の温度制御方法。 - 前記降温制御工程は、前記第1の温度よりも低く、前記第2の温度よりも高い第3の温度にて前記静電チャックを維持する工程を含むことを特徴とする請求項1〜4のいずれか一項に記載の温度制御方法。
- 前記第2のプラズマ処理を実行する前に、前記不活性ガスの導入を停止する工程を含むことを特徴とする請求項1〜5のいずれか一項に記載の温度制御方法。
- 前記第2のプラズマ処理を実行する前に、前記処理室内の圧力を、前記圧力制御工程にて制御された圧力よりも低い圧力に制御する工程を含むことを特徴とする請求項3又は4に記載の温度制御方法。
- 処理室内と、
温度調節可能な静電チャックと、
前記静電チャックの温度を制御する制御部と、
を有し、
前記制御部が行う制御は、
前記静電チャックを第1の温度に制御した状態で前記処理室内にて被処理体の第1のプラズマ処理の実行を制御した後、前記静電チャックの温度を前記第1の温度よりも低い第2の温度に段階的に制御する降温制御と、
前記第1のプラズマ処理を実行した後、前記処理室内を不活性ガスによりパージするパージ制御と、
前記第2の温度に制御した状態で前記処理室内にて被処理体の第2のプラズマ処理を実行する実行制御と、を含み、
前記降温制御による工程と前記パージ制御による工程とは、少なくとも一部が並行して行われるように制御する、ことを特徴とするプラズマ処理装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013133414A JP6159172B2 (ja) | 2013-06-26 | 2013-06-26 | 温度制御方法及びプラズマ処理装置 |
US14/308,970 US10217616B2 (en) | 2013-06-26 | 2014-06-19 | Method of controlling temperature and plasma processing apparatus |
TW103121649A TWI612600B (zh) | 2013-06-26 | 2014-06-24 | 溫度控制方法及電漿處理裝置 |
KR1020140078363A KR102241740B1 (ko) | 2013-06-26 | 2014-06-25 | 온도 제어 방법 및 플라즈마 처리 장치 |
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JP2013133414A JP6159172B2 (ja) | 2013-06-26 | 2013-06-26 | 温度制御方法及びプラズマ処理装置 |
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JP2015008249A JP2015008249A (ja) | 2015-01-15 |
JP6159172B2 true JP6159172B2 (ja) | 2017-07-05 |
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Country Status (4)
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US (1) | US10217616B2 (ja) |
JP (1) | JP6159172B2 (ja) |
KR (1) | KR102241740B1 (ja) |
TW (1) | TWI612600B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6407694B2 (ja) * | 2014-12-16 | 2018-10-17 | 株式会社日立ハイテクノロジーズ | プラズマ処理装置 |
US20170278730A1 (en) * | 2016-03-28 | 2017-09-28 | Hitachi High-Technologies Corporation | Plasma processing apparatus and plasma processing method |
JP6877133B2 (ja) * | 2016-03-28 | 2021-05-26 | 株式会社日立ハイテク | プラズマ処理装置およびプラズマ処理方法 |
JP7073098B2 (ja) | 2017-12-27 | 2022-05-23 | 株式会社日立ハイテク | ウエハ処理方法およびウエハ処理装置 |
KR102554014B1 (ko) * | 2018-06-15 | 2023-07-11 | 삼성전자주식회사 | 저온 식각 방법 및 플라즈마 식각 장치 |
US11728187B2 (en) * | 2018-12-21 | 2023-08-15 | Axcelis Technologies, Inc. | Method for decreasing cool down time with heated system for semiconductor manufacturing equipment |
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JPH10172919A (ja) * | 1996-12-11 | 1998-06-26 | Sony Corp | レーザーアニール方法及び装置 |
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JP2010010397A (ja) * | 2008-06-27 | 2010-01-14 | Hitachi High-Technologies Corp | プラズマ処理装置およびプラズマ処理方法 |
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JP6217233B2 (ja) * | 2013-08-21 | 2017-10-25 | 住友電気工業株式会社 | 半導体装置の製造方法 |
JP6541439B2 (ja) * | 2015-05-29 | 2019-07-10 | 東京エレクトロン株式会社 | エッチング方法 |
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2014
- 2014-06-19 US US14/308,970 patent/US10217616B2/en active Active
- 2014-06-24 TW TW103121649A patent/TWI612600B/zh active
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TWI612600B (zh) | 2018-01-21 |
US10217616B2 (en) | 2019-02-26 |
JP2015008249A (ja) | 2015-01-15 |
TW201508853A (zh) | 2015-03-01 |
KR102241740B1 (ko) | 2021-04-19 |
KR20150001664A (ko) | 2015-01-06 |
US20150004794A1 (en) | 2015-01-01 |
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