JP7229033B2 - 基板処理方法及び基板処理装置 - Google Patents
基板処理方法及び基板処理装置 Download PDFInfo
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- 239000000758 substrate Substances 0.000 title claims description 128
- 238000012545 processing Methods 0.000 title claims description 62
- 238000003672 processing method Methods 0.000 title claims description 23
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 54
- 229910052717 sulfur Inorganic materials 0.000 claims description 54
- 239000011593 sulfur Substances 0.000 claims description 54
- 238000005530 etching Methods 0.000 claims description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 38
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 37
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 20
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 20
- 239000002356 single layer Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000012360 testing method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 38
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 claims 1
- 229910052756 noble gas Inorganic materials 0.000 claims 1
- 239000010410 layer Substances 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 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
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 239000000047 product Substances 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
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 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
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- 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
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- 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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- 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
- H01J37/30—Electron-beam or ion-beam tubes for localised treatment of objects
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- H01J37/3056—Electron-beam or ion-beam tubes for localised treatment of objects for casting, melting, evaporating, or etching for evaporating or etching for microworking, e. g. etching of gratings or trimming of electrical components
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/02164—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon oxide, e.g. SiO2
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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
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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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/02252—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by plasma treatment, e.g. plasma oxidation of the substrate
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- 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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- 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
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- 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
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
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- Power Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Drying Of Semiconductors (AREA)
Description
<COSを添加した場合の条件>
・処理圧力:2.7Pa
・COS流量:10~35sccm
・C4F6,C4F8,C3F8流量:180sccm
・CH2F2流量:150sccm
・O2:177sccm
・第1の高周波電力:40MHz,3300W
・第2の高周波電力:0.4MHz,14000W
・処理時間:600秒
<O2を調整した場合の条件>
・処理圧力:2.7Pa
・C4F6,C4F8,C3F8流量:180sccm
・CH2F2流量:150sccm
・O2:130~180sccm
・第1の高周波電力:40MHz,3300W
・第2の高周波電力:0.4MHz,14000W
・処理時間:600秒
W1 第1基板
W2 第2基板
1 基板処理装置
10 チャンバ
14 支持台
40 ガスソース群
80 制御部
100 下地層
110 第1領域
111 シリコン酸化膜
112 シリコン窒化膜
120 第2領域
150 マスク
Claims (19)
- シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第1基板を提供する工程と、
硫黄含有ガスの流量を変えて、各流量で前記第1基板を処理ガスを用いてエッチングし、前記硫黄含有ガスの流量と、前記第1領域に形成された凹部の形状と前記第2領域に形成された凹部の形状との形状差と、の関係を求める工程と、
前記関係から、前記硫黄含有ガスの流量を決定する工程と、
決定した前記硫黄含有ガスの流量で、シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第2基板をエッチングする工程と、を有する基板処理方法。 - 前記関係を求める工程の前記形状差は、前記第1領域に形成された凹部の最大CDと前記第2領域に形成された凹部の最大CDとの差である、
請求項1に記載の基板処理方法。 - 前記流量を決定する工程は、前記第1領域に形成された凹部の最大CDと前記第2領域に形成された凹部の最大CDとの差が所定の閾値以下となるように、前記硫黄含有ガスの流量を決定するステップを含む、
請求項2に記載の基板処理方法。 - 前記流量を決定する工程は、
前記第1領域及び前記第2領域における最大CDの差が、前記第1領域の最大CDに対し5%以下となるように、前記硫黄含有ガスの流量を決定するステップを含む、
請求項2に記載の基板処理方法。 - シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第1基板を提供する工程と、
硫黄含有ガスの流量を変えて、各流量で前記第1基板を処理ガスを用いてエッチングし、前記硫黄含有ガスの流量と、前記第1領域に形成された凹部のエッチングレートと前記第2領域に形成された凹部のエッチングレートとの差と、の関係を求める工程と、
前記関係から、前記硫黄含有ガスの流量を決定する工程と、
決定した前記硫黄含有ガスの流量で、シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第2基板をエッチングする工程と、を有する基板処理方法。 - 前記流量を決定する工程は、
前記第1領域及び前記第2領域におけるエッチングレートの差が所定の閾値以下となるように、前記硫黄含有ガスの流量を決定するステップを含む、
請求項5に記載の基板処理方法。 - 前記関係を求める工程の前記形状差は、前記第1領域に形成された凹部の深さと前記第2領域に形成された凹部の深さとの差である、
請求項1に記載の基板処理方法。 - 前記流量を決定する工程は、前記第1領域に形成された凹部の深さと前記第2領域に形成された凹部の深さとの差が所定の閾値以下となるように、前記硫黄含有ガスの流量を決定するステップを含む、
請求項7に記載の基板処理方法。 - 前記第1基板は、前記第1領域及び前記第2領域の上にマスクを有し、
前記関係を求める工程は、
前記硫黄含有ガスの流量と、前記第1領域に形成された凹部における前記マスクの最小幅と前記第2領域に形成された凹部における前記マスクの最小幅との差と、の関係を求める、
請求項1乃至請求項4、請求項7及び請求項8のいずれか1項に記載の基板処理方法。 - 前記硫黄含有ガスを含まない処理ガスを用いて、前記形状差が所定の範囲内となるように前記第1基板をエッチングし、前記硫黄含有ガス以外の処理ガスの条件を決定する工程を含む、
請求項1乃至請求項4、請求項7及び請求項9のいずれか1項に記載の基板処理方法。 - 前記第1基板は、テスト用の基板であり、
前記第2基板は、半導体デバイス製造用の基板ある、
請求項1乃至請求項10のいずれか1項に記載の基板処理方法。 - 前記硫黄含有ガスは、COS、SO2、SF6の少なくとも1つを含む、
請求項1乃至請求項11のいずれか1項に記載の基板処理方法。 - 前記処理ガスは、CH2F2、C4F6、C4F8の少なくとも1つを含む、
請求項1乃至請求項12のいずれか1項に記載の基板処理方法。 - 前記処理ガスは、ハイドロフルオロカーボンガス、フルオロカーボンガス、酸素含有ガス、及び、希ガスを含む、
請求項1乃至請求項12のいずれか1項に記載の基板処理方法。 - 前記ハイドロフルオロカーボンガスは、CH2F2、CHF3の少なくとも1つを含む、
請求項14に記載の基板処理方法。 - 前記フルオロカーボンガスは、C4F6、C4F8、C3F8の少なくとも1つを含む、
請求項14に記載の基板処理方法。 - 前記酸素含有ガスはO2、O3の少なくとも1つを含む、
請求項14に記載の基板処理方法。 - シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第1基板を提供する工程と、
硫黄含有ガスの流量を変えて、各流量で前記第1基板をエッチングする工程と、
前記硫黄含有ガスの流量と、前記第1領域に形成された凹部の形状と前記第2領域に形成された凹部の形状との形状差と、の関係から決定された前記硫黄含有ガスの流量で、第2基板をエッチングする工程と、を有する基板処理方法。 - チャンバと、
前記チャンバ内に配置され、基板を支持する支持台と、
前記チャンバ内にガスを供給するガス供給部と、
制御部と、を備え、
前記制御部は、
シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第1基板を提供する工程と、
硫黄含有ガスの流量を変えて、各流量で前記第1基板を処理ガスを用いてエッチングし、前記硫黄含有ガスの流量と、前記第1領域に形成された凹部の形状と前記第2領域に形成された凹部の形状との形状差と、の関係を求める工程と、
前記関係から、前記硫黄含有ガスの流量を決定する工程と、
決定した前記硫黄含有ガスの流量で、シリコン酸化膜及びシリコン窒化膜の積層膜を有する第1領域と、シリコン酸化膜の単層膜を有する第2領域と、を有する第2基板をエッチングする工程と、を実行する、
基板処理装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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JP2019017380A JP7229033B2 (ja) | 2019-02-01 | 2019-02-01 | 基板処理方法及び基板処理装置 |
KR1020200009876A KR20200096142A (ko) | 2019-02-01 | 2020-01-28 | 기판 처리 방법 및 기판 처리 장치 |
US16/776,774 US11139161B2 (en) | 2019-02-01 | 2020-01-30 | Method of processing substrates and substrate processing apparatus |
CN202010078704.6A CN111524807A (zh) | 2019-02-01 | 2020-02-03 | 基板处理方法和基板处理装置 |
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JP2011134896A (ja) | 2009-12-24 | 2011-07-07 | Tokyo Electron Ltd | エッチング方法及びエッチング処理装置 |
JP2016051750A (ja) | 2014-08-29 | 2016-04-11 | 東京エレクトロン株式会社 | エッチング方法 |
JP2017118091A (ja) | 2015-12-18 | 2017-06-29 | 東京エレクトロン株式会社 | エッチング方法 |
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JP2979563B2 (ja) * | 1990-01-13 | 1999-11-15 | ソニー株式会社 | 半導体装置の製造方法 |
JPH03231426A (ja) * | 1990-02-07 | 1991-10-15 | Fujitsu Ltd | 半導体装置の製造方法 |
JPH0722398A (ja) * | 1993-06-23 | 1995-01-24 | Yamaha Corp | ドライエッチング方法 |
JP5530088B2 (ja) * | 2008-10-20 | 2014-06-25 | 東京エレクトロン株式会社 | プラズマエッチング方法及びプラズマエッチング装置 |
JP5968130B2 (ja) * | 2012-07-10 | 2016-08-10 | 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 |
CN103107085B (zh) * | 2013-01-31 | 2016-02-10 | 电子科技大学 | 一种NiCr薄膜的干法刻蚀工艺 |
JP6423643B2 (ja) * | 2014-08-08 | 2018-11-14 | 東京エレクトロン株式会社 | 多層膜をエッチングする方法 |
JP6498022B2 (ja) * | 2015-04-22 | 2019-04-10 | 東京エレクトロン株式会社 | エッチング処理方法 |
US9613824B2 (en) * | 2015-05-14 | 2017-04-04 | Tokyo Electron Limited | Etching method |
JP6604911B2 (ja) * | 2016-06-23 | 2019-11-13 | 東京エレクトロン株式会社 | エッチング処理方法 |
US10658194B2 (en) * | 2016-08-23 | 2020-05-19 | Lam Research Corporation | Silicon-based deposition for semiconductor processing |
KR102356741B1 (ko) * | 2017-05-31 | 2022-01-28 | 삼성전자주식회사 | 절연층들을 갖는 반도체 소자 및 그 제조 방법 |
US10811267B2 (en) * | 2017-12-21 | 2020-10-20 | Micron Technology, Inc. | Methods of processing semiconductor device structures and related systems |
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JP2016051750A (ja) | 2014-08-29 | 2016-04-11 | 東京エレクトロン株式会社 | エッチング方法 |
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