JP2021082701A - 膜をエッチングする方法及びプラズマ処理装置 - Google Patents
膜をエッチングする方法及びプラズマ処理装置 Download PDFInfo
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- JP2021082701A JP2021082701A JP2019208779A JP2019208779A JP2021082701A JP 2021082701 A JP2021082701 A JP 2021082701A JP 2019208779 A JP2019208779 A JP 2019208779A JP 2019208779 A JP2019208779 A JP 2019208779A JP 2021082701 A JP2021082701 A JP 2021082701A
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- 238000005530 etching Methods 0.000 title claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 137
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- 239000001301 oxygen Substances 0.000 claims description 35
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 30
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- 238000001020 plasma etching Methods 0.000 claims description 13
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- 239000001257 hydrogen Substances 0.000 claims description 5
- 150000002500 ions Chemical class 0.000 claims description 4
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 2
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
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- 230000001276 controlling effect Effects 0.000 description 3
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- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
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- 229920005591 polysilicon Polymers 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
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- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- XROWMBWRMNHXMF-UHFFFAOYSA-J titanium tetrafluoride Chemical compound [F-].[F-].[F-].[F-].[Ti+4] XROWMBWRMNHXMF-UHFFFAOYSA-J 0.000 description 1
- 150000003657 tungsten Chemical class 0.000 description 1
- KPGXUAIFQMJJFB-UHFFFAOYSA-H tungsten hexachloride Chemical compound Cl[W](Cl)(Cl)(Cl)(Cl)Cl KPGXUAIFQMJJFB-UHFFFAOYSA-H 0.000 description 1
- NXHILIPIEUBEPD-UHFFFAOYSA-H tungsten hexafluoride Chemical compound F[W](F)(F)(F)(F)F NXHILIPIEUBEPD-UHFFFAOYSA-H 0.000 description 1
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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
- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32139—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer using masks
-
- 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
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
-
- 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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Abstract
Description
Claims (17)
- 膜をエッチングする方法であって、前記膜を有する基板は開口を画成する側壁面及び底面を有しており、該方法は、
前記基板に前駆体ガスを供給することにより、前記基板上に前駆体層を形成する工程と、
処理ガスから形成されたプラズマからの化学種により前記膜をエッチングする工程であり、該エッチングによって前記開口の深さを増加させ、且つ、前記化学種又は前記プラズマからの別の化学種により前記前駆体層から保護領域を形成する、該工程と、
を含み、
前駆体層を形成する前記工程及び前記膜をエッチングする前記工程を各々が含む複数のサイクルが実行され、
前記複数のサイクルのうち少なくとも一つのサイクルに含まれる前記膜をエッチングする前記工程の実行中の前記基板の温度と前記複数のサイクルのうち少なくとも一つの別のサイクルに含まれる前記膜をエッチングする前記工程の実行中の前記基板の温度が、互いに異なる温度に設定される、
方法。 - 前記少なくとも一つの別のサイクルは、前記少なくとも一つのサイクルの後に実行され、
前記少なくとも一つの別のサイクルに含まれる前記膜をエッチングする前記工程の実行中の前記基板の前記温度は、前記少なくとも一つのサイクルに含まれる前記膜をエッチングする前記工程の実行中の前記基板の前記温度よりも高い温度に設定される、
請求項1に記載の方法。 - 前記少なくとも一つの別のサイクルは、前記少なくとも一つのサイクルにおいてエッチングされる前記膜の深さ方向の位置よりも深い位置において前記膜をエッチングするときに実行される、請求項2に記載の方法。
- 前記複数のサイクルの実行の進行に伴い、前記保護領域が前記開口を画成する側壁面に沿って前記開口の深さ方向に拡張される、請求項1〜3の何れか一項に記載の方法。
- 前記基板は、前記膜上に設けられたマスクを更に有する、請求項1〜4の何れか一項に記載の方法。
- 前記複数のサイクルのうち少なくとも二つのサイクルの間で、プラズマエッチングにより前記保護領域の厚さを減少させる工程を更に含む請求項1〜5の何れか一項に記載の方法。
- 前記複数のサイクルを実行する前に、前記膜に前記開口を形成する工程を更に含む、請求項1〜6の何れか一項に記載の方法。
- 前記複数のサイクルは、単一のプラズマ処理装置のチャンバ内に連続して維持される減圧された空間内で前記基板を該チャンバから取り出さずに実行される、請求項1〜6の何れか一項に記載の方法。
- 前記プラズマ処理装置は、容量結合型プラズマ処理装置であり、
前記チャンバと、
下部電極を含み、前記チャンバ内で前記基板を支持するように構成された支持台と、
前記前駆体ガス及び前記処理ガスを前記チャンバ内に供給するように構成されたガス供給部と、
前記支持台の上方に設けられた上部電極と、
プラズマを生成するための第1の高周波電力を前記上部電極に供給するように構成された第1の高周波電源と、
基板にイオンを引き込むための第2の高周波電力を前記下部電極に供給するように構成された第2の高周波電源と、
を備える、請求項8に記載の方法。 - 前記膜は、有機膜であり、
前記膜をエッチングする前記化学種は、酸素化学種を含み、
前記酸素化学種によって前記前駆体層に含まれる前駆体が酸化される、
請求項1〜9の何れか一項に記載の方法。 - 前記前駆体はシリコン又は金属を含む、請求項10に記載の方法。
- 前記膜は、シリコン、炭素、酸素、及び水素を含む低誘電率膜であり、
前記前駆体層に含まれる前駆体は、シリコンを含み、
前記膜をエッチングする前記化学種は、フッ素化学種及び窒素化学種を含み、
前記窒素化学種によって前記前駆体が窒化される、
請求項1〜9の何れか一項に記載の方法。 - 前記膜は、シリコン、炭素、酸素、及び水素を含む低誘電率膜であり、
前記前駆体層に含まれる前駆体は、金属を含み、
前記膜をエッチングする前記化学種は、フッ素化学種及び窒素化学種を含み、
前記別の化学種は、酸素化学種を含む、
請求項1〜9の何れか一項に記載の方法。 - 前記膜は、多結晶シリコン膜であり、
前記前駆体層に含まれる前駆体は、シリコン又は金属を含み、
前記膜をエッチングする前記化学種は、ハロゲン化学種を含み、
前記別の化学種は、酸素化学種を含む、
請求項1〜9の何れか一項に記載の方法。 - 前記膜は、窒化シリコン膜であり、
前記前駆体層に含まれる前駆体は、シリコン又は金属を含み、
前記膜をエッチングする前記化学種は、前記処理ガス中のハイドロフルオロカーボンから形成される化学種を含み、
前記別の化学種は、酸素化学種を含む、
請求項1〜9の何れか一項に記載の方法。 - 前記金属はタングステン又はチタンである、請求項11、13、14、又は15に記載の方法。
- チャンバと、
前記チャンバ内で基板を支持するように構成された支持台と、
前駆体ガス及び処理ガスを前記チャンバ内に供給するように構成されたガス供給部と、
前記処理ガスのプラズマを生成するよう構成されたプラズマ生成部と、
前記支持台上に載置された基板の温度を調整するように構成された温度調整機構と、
前記ガス供給部、前記プラズマ生成部、及び前記温度調整機構を制御するように構成された制御部と、
を備え、
前記制御部は、
第1制御及び第2制御を各々が含む複数の制御サイクルを実行し、
前記支持台上に載置された基板上に前駆体層を形成するために、前記チャンバ内に前記前駆体ガスを供給するように、前記第1制御において前記ガス供給部を制御し、
前記基板が提供する開口の深さを該基板の膜をエッチングすることにより増加させ、且つ、前記前駆体層を変質させて保護領域を形成するために、前記チャンバ内に前記処理ガスを供給し、且つ、該チャンバ内で該処理ガスのプラズマを生成するように、前記第2制御において前記ガス供給部及び前記プラズマ生成部を制御し、
前記複数の制御サイクルのうち少なくとも一つの制御サイクルに含まれる前記第2制御の実行中の前記基板の温度と前記複数の制御サイクルのうち少なくとも一つの別の制御サイクルに含まれる前記第2制御の実行中の前記基板の温度を互いに異なる温度に設定するように前記温度調整機構を制御する、
ように構成されている、
プラズマ処理装置。
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TW109138534A TW202135161A (zh) | 2019-11-19 | 2020-11-05 | 膜之蝕刻方法及電漿處理裝置 |
CN202011238186.6A CN112908844A (zh) | 2019-11-19 | 2020-11-09 | 对膜进行蚀刻的方法和等离子体处理装置 |
KR1020200148571A KR20210061937A (ko) | 2019-11-19 | 2020-11-09 | 막을 에칭하는 방법 및 플라즈마 처리 장치 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7099675B1 (ja) | 2021-07-27 | 2022-07-12 | 東京エレクトロン株式会社 | エッチング方法、半導体装置の製造方法、プログラムおよびプラズマ処理装置 |
WO2023008025A1 (ja) * | 2021-07-27 | 2023-02-02 | 東京エレクトロン株式会社 | エッチング方法、半導体装置の製造方法、エッチングプログラムおよびプラズマ処理装置 |
WO2023127820A1 (ja) * | 2021-12-28 | 2023-07-06 | 東京エレクトロン株式会社 | エッチング方法及びプラズマ処理装置 |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0372087A (ja) * | 1989-08-10 | 1991-03-27 | Toshiba Corp | ドライエッチング方法 |
JP2007214171A (ja) * | 2006-02-07 | 2007-08-23 | Hitachi High-Technologies Corp | エッチング処理方法 |
JP2009049141A (ja) * | 2007-08-17 | 2009-03-05 | Tokyo Electron Ltd | 半導体装置の製造方法及び記憶媒体 |
JP2009277770A (ja) * | 2008-05-13 | 2009-11-26 | Toshiba Corp | 不揮発性半導体記憶装置及びその製造方法 |
JP2012248844A (ja) * | 2011-05-24 | 2012-12-13 | Air Products & Chemicals Inc | 有機アミノシラン前駆体、並びにその製造方法及び使用方法 |
JP2016197680A (ja) * | 2015-04-06 | 2016-11-24 | 東京エレクトロン株式会社 | エッチング方法 |
JP2018037453A (ja) * | 2016-08-29 | 2018-03-08 | 東京エレクトロン株式会社 | 被処理体を処理する方法 |
JP2018157048A (ja) * | 2017-03-17 | 2018-10-04 | 株式会社日立ハイテクノロジーズ | エッチング方法及びプラズマ処理装置 |
JP2019192728A (ja) * | 2018-04-23 | 2019-10-31 | 東京エレクトロン株式会社 | 温度制御方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5642001B2 (ja) | 2011-03-25 | 2014-12-17 | 東京エレクトロン株式会社 | プラズマエッチング方法 |
JP6185305B2 (ja) | 2013-06-28 | 2017-08-23 | 東京エレクトロン株式会社 | プラズマエッチング方法およびプラズマエッチング装置 |
US11670516B2 (en) * | 2018-08-24 | 2023-06-06 | Lam Research Corporation | Metal-containing passivation for high aspect ratio etch |
-
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- 2019-11-19 JP JP2019208779A patent/JP7336365B2/ja active Active
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2023
- 2023-03-16 US US18/122,553 patent/US20230215707A1/en active Pending
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0372087A (ja) * | 1989-08-10 | 1991-03-27 | Toshiba Corp | ドライエッチング方法 |
JP2007214171A (ja) * | 2006-02-07 | 2007-08-23 | Hitachi High-Technologies Corp | エッチング処理方法 |
JP2009049141A (ja) * | 2007-08-17 | 2009-03-05 | Tokyo Electron Ltd | 半導体装置の製造方法及び記憶媒体 |
JP2009277770A (ja) * | 2008-05-13 | 2009-11-26 | Toshiba Corp | 不揮発性半導体記憶装置及びその製造方法 |
JP2012248844A (ja) * | 2011-05-24 | 2012-12-13 | Air Products & Chemicals Inc | 有機アミノシラン前駆体、並びにその製造方法及び使用方法 |
JP2016197680A (ja) * | 2015-04-06 | 2016-11-24 | 東京エレクトロン株式会社 | エッチング方法 |
JP2018037453A (ja) * | 2016-08-29 | 2018-03-08 | 東京エレクトロン株式会社 | 被処理体を処理する方法 |
JP2018157048A (ja) * | 2017-03-17 | 2018-10-04 | 株式会社日立ハイテクノロジーズ | エッチング方法及びプラズマ処理装置 |
JP2019192728A (ja) * | 2018-04-23 | 2019-10-31 | 東京エレクトロン株式会社 | 温度制御方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7099675B1 (ja) | 2021-07-27 | 2022-07-12 | 東京エレクトロン株式会社 | エッチング方法、半導体装置の製造方法、プログラムおよびプラズマ処理装置 |
WO2023008025A1 (ja) * | 2021-07-27 | 2023-02-02 | 東京エレクトロン株式会社 | エッチング方法、半導体装置の製造方法、エッチングプログラムおよびプラズマ処理装置 |
JP2023018631A (ja) * | 2021-07-27 | 2023-02-08 | 東京エレクトロン株式会社 | エッチング方法、半導体装置の製造方法、プログラムおよびプラズマ処理装置 |
WO2023127820A1 (ja) * | 2021-12-28 | 2023-07-06 | 東京エレクトロン株式会社 | エッチング方法及びプラズマ処理装置 |
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