JP2013074220A - 堆積物除去方法 - Google Patents
堆積物除去方法 Download PDFInfo
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- JP2013074220A JP2013074220A JP2011213677A JP2011213677A JP2013074220A JP 2013074220 A JP2013074220 A JP 2013074220A JP 2011213677 A JP2011213677 A JP 2011213677A JP 2011213677 A JP2011213677 A JP 2011213677A JP 2013074220 A JP2013074220 A JP 2013074220A
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- 238000000034 method Methods 0.000 title claims abstract description 88
- 239000007789 gas Substances 0.000 claims abstract description 164
- 238000012545 processing Methods 0.000 claims abstract description 85
- 239000001301 oxygen Substances 0.000 claims abstract description 43
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 43
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 37
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 238000005530 etching Methods 0.000 claims abstract description 27
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims description 50
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 238000009832 plasma treatment Methods 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000011368 organic material Substances 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 81
- 239000004065 semiconductor Substances 0.000 description 39
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 9
- 229910004298 SiO 2 Inorganic materials 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 229910001882 dioxygen Inorganic materials 0.000 description 9
- 238000009792 diffusion process Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 238000000635 electron micrograph Methods 0.000 description 2
- 238000009616 inductively coupled plasma Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000002926 oxygen Chemical class 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
- B05D3/145—After-treatment
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- 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
- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
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- 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
- H01L21/28—Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
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- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
【解決手段】基板上にエッチングによって形成されたパターンの表面に堆積した堆積物を除去する堆積物除去方法であって、基板を、フッ化水素ガスを含む雰囲気に晒す第1処理工程と、第1処理工程の後に、基板を加熱しながら酸素プラズマに晒す酸素プラズマ処理工程と、酸素プラズマ処理工程の後に、基板を、フッ化水素ガスを含む雰囲気に晒す第2処理工程と、を具備している。
【選択図】図3
Description
エッチングガス:HBr/NF3/CO/O2
エッチングガス:HBr/CF4/CO/O2
圧力:133Pa(1Torr)
高周波電力:1000W
処理ガス:O2=2000sccm
ステージ温度:250℃
時間:120秒
圧力:(931Pa(7Torr)10秒⇔173Pa(1.3Torr)10秒)×3サイクル
処理ガス:HF/CH3OH=2800/65sccm
ステージ温度:10℃
圧力:133Pa(1Torr)
高周波電力:1000W
処理ガス:O2=2000sccm
ステージ温度: 250℃
時間:30秒
圧力:(931Pa(7Torr)10秒⇔173Pa(1.3Torr)10秒)×3サイクル
処理ガス:HF/CH3OH=2800/65sccm
ステージ温度:10℃
Claims (8)
- 基板上にエッチングによって形成されたパターンの表面に堆積した堆積物を除去する堆積物除去方法であって、
前記基板を、フッ化水素ガスを含む雰囲気に晒す第1処理工程と、
前記第1処理工程の後に、前記基板を加熱しながら酸素プラズマに晒す酸素プラズマ処理工程と、
前記酸素プラズマ処理工程の後に、前記基板を、フッ化水素ガスを含む雰囲気に晒す第2処理工程と、
を具備したことを特徴とする堆積物除去方法。 - 請求項1記載の堆積物除去方法であって、
前記堆積物が、シリコン酸化物と有機物を含む
ことを特徴とする堆積物除去方法。 - 請求項2記載の堆積物除去方法であって、
前記堆積物中の有機物が、前記パターンを形成する際のエッチングで炭素を含むガスを用いることによって形成された
ことを特徴とする堆積物除去方法。 - 請求項1〜3いずれか1項記載の堆積物除去方法であって、
前記第1処理工程及び前記第2処理工程におけるフッ化水素ガスを含む雰囲気は、フッ化水素ガスとアルコールガスの混合ガスの雰囲気である
ことを特徴とする堆積物除去方法。 - 請求項4記載の堆積物除去方法であって、
前記第1処理工程、前記第2処理工程のうちの少なくとも一方は、
処理チャンバー内で実施し、前記アルコールガスの分圧を第1の分圧とする第1の期間と、処理チャンバー内を排気し前記アルコールガスの分圧を第1の分圧より低い第2の分圧とする第2の期間とを、複数サイクル繰り返すサイクル処理によって行う
ことを特徴とする堆積物除去方法。 - 請求項5記載の堆積物除去方法であって、
前記第1の分圧が、前記混合ガスの作用によって前記堆積物を除去可能な分圧である
ことを特徴とする堆積物除去方法。 - 請求項1〜6いずれか1項記載の堆積物除去方法であって、
前記第1処理工程の前に、
前記基板を加熱しながら酸素プラズマに晒す酸素プラズマによる前処理工程を行う
ことを特徴とする堆積物除去方法。 - 請求項は1〜7いずれか1項記載の堆積物除去方法であって、
前記パターンが、構造物として二酸化ケイ素を含む
ことを特徴とする堆積物除去方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011213677A JP5859262B2 (ja) | 2011-09-29 | 2011-09-29 | 堆積物除去方法 |
CN201280047417.2A CN103828029B (zh) | 2011-09-29 | 2012-09-25 | 堆积物去除方法 |
PCT/JP2012/006091 WO2013046642A1 (ja) | 2011-09-29 | 2012-09-25 | 堆積物除去方法 |
KR1020147011356A KR101930577B1 (ko) | 2011-09-29 | 2012-09-25 | 퇴적물 제거 방법 |
TW101135420A TW201332010A (zh) | 2011-09-29 | 2012-09-26 | 沉積物移除方法 |
US14/222,762 US9177816B2 (en) | 2011-09-29 | 2014-03-24 | Deposit removal method |
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JP2011213677A JP5859262B2 (ja) | 2011-09-29 | 2011-09-29 | 堆積物除去方法 |
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JP2013074220A true JP2013074220A (ja) | 2013-04-22 |
JP5859262B2 JP5859262B2 (ja) | 2016-02-10 |
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JP2011213677A Active JP5859262B2 (ja) | 2011-09-29 | 2011-09-29 | 堆積物除去方法 |
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US (1) | US9177816B2 (ja) |
JP (1) | JP5859262B2 (ja) |
KR (1) | KR101930577B1 (ja) |
CN (1) | CN103828029B (ja) |
TW (1) | TW201332010A (ja) |
WO (1) | WO2013046642A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20210126542A (ko) | 2020-04-10 | 2021-10-20 | 주식회사 히타치하이테크 | 에칭 방법 |
KR20230123009A (ko) | 2022-02-14 | 2023-08-22 | 주식회사 히타치하이테크 | 에칭 처리 방법 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP6017170B2 (ja) * | 2012-04-18 | 2016-10-26 | 東京エレクトロン株式会社 | 堆積物除去方法及びガス処理装置 |
JP6499001B2 (ja) | 2015-04-20 | 2019-04-10 | 東京エレクトロン株式会社 | 多孔質膜をエッチングする方法 |
CN113506731B (zh) * | 2016-10-08 | 2024-07-23 | 北京北方华创微电子装备有限公司 | 一种集成电路的制造工艺 |
KR102490700B1 (ko) * | 2017-03-27 | 2023-01-26 | 주식회사 히타치하이테크 | 플라스마 처리 방법 |
CN107331614B (zh) * | 2017-06-23 | 2021-05-25 | 江苏鲁汶仪器有限公司 | 一种自限制精确刻蚀硅的方法及其专用装置 |
JP7137927B2 (ja) * | 2017-12-20 | 2022-09-15 | キオクシア株式会社 | 半導体装置の製造方法 |
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- 2012-09-25 KR KR1020147011356A patent/KR101930577B1/ko active IP Right Grant
- 2012-09-25 WO PCT/JP2012/006091 patent/WO2013046642A1/ja active Application Filing
- 2012-09-25 CN CN201280047417.2A patent/CN103828029B/zh active Active
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JP5859262B2 (ja) | 2016-02-10 |
KR20140082758A (ko) | 2014-07-02 |
CN103828029A (zh) | 2014-05-28 |
TW201332010A (zh) | 2013-08-01 |
WO2013046642A1 (ja) | 2013-04-04 |
CN103828029B (zh) | 2016-06-15 |
KR101930577B1 (ko) | 2018-12-18 |
US9177816B2 (en) | 2015-11-03 |
US20140206198A1 (en) | 2014-07-24 |
TWI562228B (ja) | 2016-12-11 |
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