JP5982223B2 - プラズマ処理方法、及びプラズマ処理装置 - Google Patents
プラズマ処理方法、及びプラズマ処理装置 Download PDFInfo
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- JP5982223B2 JP5982223B2 JP2012186344A JP2012186344A JP5982223B2 JP 5982223 B2 JP5982223 B2 JP 5982223B2 JP 2012186344 A JP2012186344 A JP 2012186344A JP 2012186344 A JP2012186344 A JP 2012186344A JP 5982223 B2 JP5982223 B2 JP 5982223B2
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- 238000012545 processing Methods 0.000 title claims description 249
- 238000003672 processing method Methods 0.000 title claims description 26
- 239000007789 gas Substances 0.000 claims description 309
- 239000000463 material Substances 0.000 claims description 130
- 239000010936 titanium Substances 0.000 claims description 103
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 95
- 229910052719 titanium Inorganic materials 0.000 claims description 95
- 229910052731 fluorine Inorganic materials 0.000 claims description 85
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 84
- 239000011737 fluorine Substances 0.000 claims description 84
- 238000005530 etching Methods 0.000 claims description 72
- 229910052799 carbon Inorganic materials 0.000 claims description 42
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 42
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 21
- 239000000758 substrate Substances 0.000 claims description 18
- 235000012431 wafers Nutrition 0.000 description 93
- 239000010408 film Substances 0.000 description 66
- 230000007246 mechanism Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 23
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 21
- 238000009832 plasma treatment Methods 0.000 description 18
- 238000005108 dry cleaning Methods 0.000 description 15
- 238000009792 diffusion process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 238000003050 experimental design method Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000002826 coolant Substances 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-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
- 239000004020 conductor Substances 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000427 thin-film deposition Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000007599 discharging Methods 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
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 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
- H01J37/32431—Constructional details of the reactor
- H01J37/3244—Gas supply means
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F4/00—Processes for removing metallic material from surfaces, not provided for in group C23F1/00 or C23F3/00
-
- 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
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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
- H01J37/3244—Gas supply means
- H01J37/32449—Gas control, e.g. control of the gas flow
-
- 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
- H01J37/32458—Vessel
-
- 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
- H01J37/32798—Further details of plasma apparatus not provided for in groups H01J37/3244 - H01J37/32788; special provisions for cleaning or maintenance of the apparatus
- H01J37/32853—Hygiene
- H01J37/32862—In situ cleaning of vessels and/or internal parts
-
- 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
- H01L21/31—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
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
- H01L21/31116—Etching inorganic layers by chemical means by dry-etching
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- H—ELECTRICITY
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- 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
- H01L21/31—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
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31144—Etching the insulating layers by chemical or physical means using masks
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- 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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- Condensed Matter Physics & Semiconductors (AREA)
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- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Plasma Technology (AREA)
Description
11 処理容器
20 フォーカスリング
30 第1の高周波電源
40 第2の高周波電源
42 上部電極
51 電極板
52 電極支持体
72 処理ガス供給源
72a、72b、72c、72d ガス供給部
74a、74b、74c、74d 流量調整機構
150 制御部
D1 絶縁膜
D2 マスク膜
S プラズマ処理空間
W ウェハ
Claims (5)
- プラズマ処理装置におけるプラズマ処理方法であって、
第1のフッ素含有ガスをプラズマ処理空間に供給し、絶縁膜の表面にチタン含有物のマスク膜が形成された被処理基板を前記第1のフッ素含有ガスのプラズマを用いてエッチングする第1の工程と、
O2ガスを前記プラズマ処理空間に供給し、前記プラズマ処理空間に表面を対向させて配置された部材に対して前記第1の工程の後に付着したカーボン含有物を前記O2ガスのプラズマを用いて除去する第2の工程と、
窒素含有ガス及び第2のフッ素含有ガスを前記プラズマ処理空間に供給し、前記部材に対して前記第1の工程の後に付着したチタン含有物を前記窒素含有ガス及び前記第2のフッ素含有ガスのプラズマを用いて除去する第3の工程と
を含むことを特徴とするプラズマ処理方法。 - 前記第2の工程と前記第3の工程との間に、第3のフッ素含有ガスを前記プラズマ処理空間に供給し、前記部材に対して前記第1の工程の後に付着したチタン含有物を前記第3のフッ素含有ガスのプラズマを用いて除去する第4の工程をさらに含むことを特徴とする請求項1に記載のプラズマ処理方法。
- 前記プラズマ処理装置が、
前記第1の工程を実行した後に前記第2の工程及び前記第3の工程を少なくとも2回繰り返して実行することを特徴とする請求項1又は請求項2に記載のプラズマ処理方法。 - 前記窒素含有ガスは、N2ガス又はNF3ガスであり、前記第2のフッ素含有ガスは、CF4ガス、C4F8ガス又はCHF3ガスであることを特徴とする請求項1〜3のいずれか一つに記載のプラズマ処理方法。
- 絶縁膜の表面にチタン含有物のマスク膜が形成された被処理基板が配置されるプラズマ処理空間を画成する処理容器と、
第1のフッ素含有ガスを前記プラズマ処理空間に供給する第1のガス供給部と、
O2ガスを前記プラズマ処理空間に供給する第2のガス供給部と、
窒素含有ガス及び第2のフッ素含有ガスを前記プラズマ処理空間に供給する第3のガス供給部と、
前記第1のガス供給部から前記第1のフッ素含有ガスを前記プラズマ処理空間に供給し、前記第1のフッ素含有ガスのプラズマを用いて前記被処理基板をエッチングする第1の工程と、前記第2のガス供給部から前記O2ガスを前記プラズマ処理空間に供給し、前記プラズマ処理空間に表面を対向させて配置された部材に対して前記第1の工程の後に付着したカーボン含有物を前記O2ガスのプラズマを用いて除去する第2の工程と、前記第3のガス供給部から前記窒素含有ガス及び前記第2のフッ素含有ガスを前記プラズマ処理空間に供給し、前記部材に対して前記第1の工程の後に付着したチタン含有物を前記窒素含有ガス及び前記第2のフッ素含有ガスのプラズマを用いて除去する第3の工程とを実行する制御部と
を備えたことを特徴とするプラズマ処理装置。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
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JP2012186344A JP5982223B2 (ja) | 2012-08-27 | 2012-08-27 | プラズマ処理方法、及びプラズマ処理装置 |
CN201380039947.7A CN104508803B (zh) | 2012-08-27 | 2013-08-07 | 等离子体处理方法 |
EP13833486.7A EP2879166B1 (en) | 2012-08-27 | 2013-08-07 | Plasma processing method |
KR1020157005120A KR102114922B1 (ko) | 2012-08-27 | 2013-08-07 | 플라즈마 처리 방법 |
US14/424,217 US9460896B2 (en) | 2012-08-27 | 2013-08-07 | Plasma processing method and plasma processing apparatus |
PCT/JP2013/071409 WO2014034396A1 (ja) | 2012-08-27 | 2013-08-07 | プラズマ処理方法、及びプラズマ処理装置 |
TW102130274A TWI571930B (zh) | 2012-08-27 | 2013-08-23 | 電漿處理方法及電漿處理裝置 |
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KR (1) | KR102114922B1 (ja) |
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JP6049527B2 (ja) * | 2013-04-05 | 2016-12-21 | 東京エレクトロン株式会社 | プラズマ処理方法及びプラズマ処理装置 |
JP2017045849A (ja) * | 2015-08-26 | 2017-03-02 | 東京エレクトロン株式会社 | シーズニング方法およびエッチング方法 |
CN117153656A (zh) * | 2016-01-13 | 2023-12-01 | 应用材料公司 | 用于蚀刻硬件的基于氢等离子体的清洗工艺 |
CN107369603A (zh) * | 2016-05-12 | 2017-11-21 | 中芯国际集成电路制造(上海)有限公司 | 去除含氧副产物、清洗刻蚀腔和形成半导体结构的方法 |
JP6763750B2 (ja) * | 2016-11-07 | 2020-09-30 | 東京エレクトロン株式会社 | 被処理体を処理する方法 |
JP6387198B1 (ja) * | 2017-04-14 | 2018-09-05 | 堺ディスプレイプロダクト株式会社 | 有機el表示装置の製造方法及び製造装置 |
WO2018233825A1 (en) * | 2017-06-21 | 2018-12-27 | Hp Indigo B.V. | VACUUM TABLES |
CN109962001A (zh) * | 2017-12-26 | 2019-07-02 | 中微半导体设备(上海)股份有限公司 | 一种等离子体腔室的运行方法和等离子反应器 |
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US9460896B2 (en) | 2016-10-04 |
KR20150048134A (ko) | 2015-05-06 |
CN104508803B (zh) | 2016-12-07 |
CN104508803A (zh) | 2015-04-08 |
JP2014045063A (ja) | 2014-03-13 |
TWI571930B (zh) | 2017-02-21 |
EP2879166B1 (en) | 2019-10-09 |
TW201413817A (zh) | 2014-04-01 |
US20150228458A1 (en) | 2015-08-13 |
EP2879166A1 (en) | 2015-06-03 |
KR102114922B1 (ko) | 2020-05-25 |
WO2014034396A1 (ja) | 2014-03-06 |
EP2879166A4 (en) | 2016-03-16 |
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