JP2019121750A - エッチング方法およびエッチング装置 - Google Patents
エッチング方法およびエッチング装置 Download PDFInfo
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- 238000005530 etching Methods 0.000 title claims abstract description 281
- 238000000034 method Methods 0.000 title claims abstract description 195
- 230000008569 process Effects 0.000 claims abstract description 173
- 239000007789 gas Substances 0.000 claims abstract description 136
- 229920002120 photoresistant polymer Polymers 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 31
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000001301 oxygen Substances 0.000 claims abstract description 30
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 29
- 150000002367 halogens Chemical class 0.000 claims abstract description 29
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 25
- 239000010703 silicon Substances 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 19
- 239000007795 chemical reaction product Substances 0.000 claims description 34
- 239000000126 substance Substances 0.000 claims description 10
- 125000005843 halogen group Chemical group 0.000 claims description 6
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 56
- 230000000052 comparative effect Effects 0.000 description 48
- 238000011156 evaluation Methods 0.000 description 38
- 238000010586 diagram Methods 0.000 description 21
- 238000009966 trimming Methods 0.000 description 20
- DEXFNLNNUZKHNO-UHFFFAOYSA-N 6-[3-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperidin-1-yl]-3-oxopropyl]-3H-1,3-benzoxazol-2-one Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1CCN(CC1)C(CCC1=CC2=C(NC(O2)=O)C=C1)=O DEXFNLNNUZKHNO-UHFFFAOYSA-N 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 229910052814 silicon oxide Inorganic materials 0.000 description 12
- 238000009835 boiling Methods 0.000 description 11
- 238000012546 transfer Methods 0.000 description 10
- 229910052581 Si3N4 Inorganic materials 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 9
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 9
- 239000012535 impurity Substances 0.000 description 6
- 229910003902 SiCl 4 Inorganic materials 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001020 plasma etching Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- AWFYPPSBLUWMFQ-UHFFFAOYSA-N 2-[5-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]-1,3,4-oxadiazol-2-yl]-1-(1,4,6,7-tetrahydropyrazolo[4,3-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C1=NN=C(O1)CC(=O)N1CC2=C(CC1)NN=C2 AWFYPPSBLUWMFQ-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 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
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
Description
まず、実施形態に係るエッチング方法を用いて製造される三次元積層半導体メモリの一例について、図1及び図2を参照しながら説明する。図1は、3D NANDフラッシュメモリの構造を概念的に示した斜視図である。図2は、図1の3D NANDフラッシュメモリの1−1断面図である。3D NANDフラッシュメモリは、三次元積層半導体メモリの一例である。
次に、実施形態に係るエッチング装置の全体構成について、図3は、実施形態に係るエッチング装置の構成の一例を示す断面図である。エッチング装置10は、下部2周波数の平行平板型(容量結合型)プラズマエッチング装置として構成されており、例えば表面がアルマイト処理(陽極酸化処理)されたアルミニウムからなる円筒形の真空チャンバ(処理容器)11を有している。チャンバ11は、接地されている。
次に、階段形状を形成するエッチング工程について説明する。図4Aは、ウエハの構成の一例を模式的に示した図である。ウエハWには、第1の膜110と第2の膜120とが交互に積層された多層膜mlが形成されている。多層膜mlは、例えば、第1の膜110及び第2の膜120が交互に数十層から数百層積層されているものとする。
次に、本実施形態に係るエッチング装置10が実施するエッチング方法の流れを説明する。図7は、実施形態に係るエッチング方法の流れの一例を示すフローチャートである。図7は、階段形状を形成するエッチング工程の流れを示している。
圧力: 50[mTorr]
第2高周波電源32(100MHz)のパワー: 2400[W]
第1高周波電源31(0.4MHz)のパワー: 200[W]
ガス種及びガス流量: Ar/O2/C4F8=600/20/35[sccm]
圧力: 50[mTorr]
第2高周波電源32(100MHz)のパワー: 1800[W]
第1高周波電源31(0.4MHz)のパワー: 300[W]
ガス種及びガス流量: O2/He/CH3F=60/150/100[sccm]
圧力: 8000[mTorr]
第2高周波電源32(100MHz)のパワー: 5000[W]
第1高周波電源31(0.4MHz)のパワー: 0[W]
ガス種及びガス流量: O2=1000[sccm]
階段形状の断面部分のラフネス3σ: 12.3[nm]
TL/TV: 0.65
ガス種及びガス流量: O2/CF4/Cl2=1000/160/40[sccm]
階段形状の断面部分のラフネス3σ: 4.5[nm]
TL/TV: 0.72
また、図10Bには、比較例(O2=1000[sccm])の評価結果も示している。
平均テーパー角: 73度
階段形状の断面部分のラフネス3σ: 12.3[nm]
TL/TV: 0.65
平均テーパー角: 79度
階段形状の断面部分のラフネス3σ: 4.3[nm]
TL/TV: 0.73
平均テーパー角: 77度
階段形状の断面部分のラフネス3σ: 5.8[nm]
TL/TV: 0.72
平均テーパー角: 77度
階段形状の断面部分のラフネス3σ: 4.9[nm]
TL/TV: 0.66
平均テーパー角: 77度
階段形状の断面部分のラフネス3σ: 5.8[nm]
TL/TV: 0.64
ガス種及びガス流量: O2/CF4=1000/160[sccm]
平均テーパー角: 75度
階段形状の断面部分のラフネス3σ: 10.9[nm]
TL/TV: 0.65
平均テーパー角: 73度
階段形状の断面部分のラフネス3σ: 12.5[nm]
TL/TV: 0.79
平均テーパー角: 74度
階段形状の断面部分のラフネス3σ: 8.1[nm]
TL/TV: 0.82
平均テーパー角: 73度(参考値)
階段形状の断面部分のラフネス3σ: 53.8[nm]
TL/TV: 0.69
平均テーパー角: 69度(参考値)
階段形状の断面部分のラフネス3σ: 61.2[nm]
TL/TV: 0.83
ガス種及びガス流量: O2/CF4/Cl2=1000/160/40[sccm]
ガス種及びガス流量: O2/NF3/Cl2=1000/80/40[sccm]
平均テーパー角: 70度
階段形状の断面部分のラフネス3σ: 5.0[nm]
TL/TV: 0.71
平均テーパー角: 72度
階段形状の断面部分のラフネス3σ: 6.3[nm]
TL/TV: 0.73
このように、実施形態に係るエッチング装置10は、第1の膜110と第2の膜120とが交互に積層された多層膜mlの表面にフォトレジスト層PRが形成され、チャンバ(処理容器)11内に配置されたウエハWに対して、フォトレジスト層PRをマスクとして多層膜mlをエッチングする第1のエッチング工程を行う。エッチング装置10は、酸素およびハロゲンを含有する第1のプロセスガスを供給する、または、ハロゲンを含有する第2のプロセスガスを供給した後に酸素を含有する第3のプロセスガスを供給する第2のエッチング工程を行う。エッチング装置10は、第1のエッチング工程から第2のエッチング工程を複数回繰り返す。これにより、エッチング装置10は、多層膜mlに階段形状を形成できる。また、エッチング装置10は、多層膜mlに形成される階段形状の断面部分のラフネスを低減できる。
11 チャンバ
38 シャワーヘッド
80 制御部
110 第1の膜
120 第2の膜
W 半導体ウエハ
ml 多層膜
PR フォトレジスト層
Claims (8)
- シリコン含有膜が形成され、当該シリコン含有膜の表面にフォトレジストが形成された被処理体をエッチングするエッチング方法であって、
処理容器内に配置された前記被処理体に対して、前記フォトレジストをマスクとして前記シリコン含有膜をエッチングする第1のエッチング工程と、
前記処理容器内に、酸素およびハロゲンを含有する第1のプロセスガスを供給する、または、ハロゲンを含有する第2のプロセスガスを供給した後に酸素を含有する第3のプロセスガスを供給する第2のエッチング工程と、を含み、
前記第1のエッチング工程から前記第2のエッチング工程を複数回繰り返す
ことを特徴とするエッチング方法。 - 前記第2のエッチング工程は、前記処理容器内の圧力を前記第1のエッチング工程よりも高い所定の圧力状態とする
ことを特徴とする請求項1に記載のエッチング方法。 - 前記第1のプロセスガスおよび前記第2のプロセスガスに含有されるハロゲンは、前記第1のエッチング工程により生成される、シリコン含有する反応生成物と反応して、当該反応生成物を第2のエッチング工程の圧力状態より高い蒸気圧を有する第1の物質に変質し、前記フォトレジストと反応して、前記第2のエッチング工程の圧力状態より低い蒸気圧を有する第2の物質を生成する特性のハロゲン族の何れかの元素である
ことを特徴とする請求項1または2に記載のエッチング方法。 - 前記第1のプロセスガスおよび前記第2のプロセスガスは、フロロカーボン、ハイドロフロロカーボンの少なくとも一方をさらに含有する
ことを特徴とする請求項1から3の何れか1つに記載のエッチング方法。 - 前記第1のプロセスガスは、酸素に対するハロゲンの含有割合が0.5%以上である
ことを特徴とする請求項1から4の何れか1つに記載のエッチング方法。 - 前記第2のエッチング工程は、前記第2のプロセスガスの供給の前に、酸素を含有する第4のプロセスガスを供給する
ことを特徴とする請求項1から5の何れか1つに記載のエッチング方法。 - 前記シリコン含有膜は、SiNとSiOの層が交互に積層された多層膜である
ことを特徴とする請求項1から6の何れか1つに記載のエッチング方法。 - 処理容器と、
シリコン含有膜が形成され、当該シリコン含有膜の表面にフォトレジストが形成され、前記処理容器内に配置された被処理体に対して、前記フォトレジストをマスクとして前記シリコン含有膜をエッチングする第1のエッチング工程と、前記第1のエッチング工程の後に、前記処理容器内に、酸素およびハロゲンを含有する第1のプロセスガスを供給する、または、ハロゲンを含有する第2のプロセスガスを供給した後に酸素を含有する第3のプロセスガスを供給する第2のエッチング工程と、を複数回繰り返すように制御する制御部と、
を有することを特徴とするエッチング装置。
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CN201910026345.7A CN110034021B (zh) | 2018-01-11 | 2019-01-11 | 蚀刻方法和蚀刻装置 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112530800A (zh) * | 2019-09-18 | 2021-03-19 | 东京毅力科创株式会社 | 蚀刻方法和基板处理系统 |
JP7635287B2 (ja) | 2023-03-23 | 2025-02-25 | キヤノン株式会社 | 原版、原版のパターン決定方法、露光方法及び物品の製造方法 |
Families Citing this family (1)
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---|---|---|---|---|
KR102328573B1 (ko) * | 2020-01-17 | 2021-11-17 | 성균관대학교산학협력단 | C-free 할로겐 기반의 가스를 이용한 실리콘 산화막 대비 높은 식각 선택비를 갖는 실리콘 질화막 건식 식각 방법 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637061A (ja) * | 1992-07-14 | 1994-02-10 | Nec Corp | 有機膜のエッチング方法 |
JPH06196453A (ja) * | 1992-12-24 | 1994-07-15 | Kawasaki Steel Corp | レジストの剥離方法 |
JP2000100798A (ja) * | 1998-07-22 | 2000-04-07 | Canon Inc | プラズマ処理装置及びプラズマ処理方法 |
JP2004259819A (ja) * | 2003-02-25 | 2004-09-16 | Hitachi High-Technologies Corp | 試料の表面処理装置及び表面処理方法 |
US20060016781A1 (en) * | 2004-07-26 | 2006-01-26 | Kenichi Kuwabara | Dry etching method |
JP2011003722A (ja) * | 2009-06-18 | 2011-01-06 | Toshiba Corp | 半導体装置の製造方法 |
JP2012511254A (ja) * | 2008-12-04 | 2012-05-17 | マイクロン テクノロジー, インク. | 基板作製方法 |
JP2012195569A (ja) * | 2011-03-03 | 2012-10-11 | Tokyo Electron Ltd | 半導体装置の製造方法及びコンピュータ記録媒体 |
JP2013183063A (ja) * | 2012-03-02 | 2013-09-12 | Tokyo Electron Ltd | 半導体装置の製造方法及びコンピュータ記録媒体 |
JP2014036148A (ja) * | 2012-08-09 | 2014-02-24 | Tokyo Electron Ltd | 多層膜をエッチングする方法、及びプラズマ処理装置 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4403241A (en) * | 1980-08-22 | 1983-09-06 | Bell Telephone Laboratories, Incorporated | Method for etching III-V semiconductors and devices made by this method |
DE3682195D1 (de) * | 1985-09-27 | 1991-11-28 | Unisys Corp | Verfahren zur herstellung einer konischen kontaktoeffnung in polyimid. |
FR2590409B1 (fr) * | 1985-11-15 | 1987-12-11 | Commissariat Energie Atomique | Procede de fabrication d'un transistor en couches minces a grille auto-alignee par rapport au drain et a la source de celui-ci et transistor obtenu par le procede |
US4698128A (en) * | 1986-11-17 | 1987-10-06 | Motorola, Inc. | Sloped contact etch process |
US4952274A (en) * | 1988-05-27 | 1990-08-28 | Northern Telecom Limited | Method for planarizing an insulating layer |
GB9600469D0 (en) * | 1996-01-10 | 1996-03-13 | Secr Defence | Three dimensional etching process |
DE19926108C2 (de) * | 1999-06-08 | 2001-06-28 | Infineon Technologies Ag | Nichtflüchtige Halbleiter-Speicherzelle mit einem Metalloxid-Dielektrikum und Verfahren zu deren Herstellung |
US6284666B1 (en) * | 2000-05-31 | 2001-09-04 | International Business Machines Corporation | Method of reducing RIE lag for deep trench silicon etching |
US6743727B2 (en) * | 2001-06-05 | 2004-06-01 | International Business Machines Corporation | Method of etching high aspect ratio openings |
US6916746B1 (en) * | 2003-04-09 | 2005-07-12 | Lam Research Corporation | Method for plasma etching using periodic modulation of gas chemistry |
US7491343B2 (en) * | 2006-09-14 | 2009-02-17 | Lam Research Corporation | Line end shortening reduction during etch |
JP4912907B2 (ja) * | 2007-02-06 | 2012-04-11 | 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 |
CN103258729B (zh) * | 2007-12-21 | 2016-07-06 | 朗姆研究公司 | 硅结构的制造和带有形貌控制的深硅蚀刻 |
WO2010141257A2 (en) * | 2009-06-03 | 2010-12-09 | Applied Materials, Inc. | Method and apparatus for etching |
KR101603737B1 (ko) * | 2010-05-11 | 2016-03-16 | 삼성전자주식회사 | 기상 세정을 이용한 금속 잔류물 제거 방법, 도전막 패턴의 형성 방법, 반도체 소자의 제조 방법 및 관련 설비 |
CN102655086B (zh) * | 2011-03-03 | 2015-07-01 | 东京毅力科创株式会社 | 半导体器件的制造方法 |
JP5912637B2 (ja) | 2012-02-17 | 2016-04-27 | 東京エレクトロン株式会社 | 半導体装置の製造方法 |
US9059038B2 (en) * | 2012-07-18 | 2015-06-16 | Tokyo Electron Limited | System for in-situ film stack measurement during etching and etch control method |
JP6230930B2 (ja) * | 2014-02-17 | 2017-11-15 | 東京エレクトロン株式会社 | 半導体装置の製造方法 |
US20150371889A1 (en) * | 2014-06-20 | 2015-12-24 | Applied Materials, Inc. | Methods for shallow trench isolation formation in a silicon germanium layer |
-
2018
- 2018-01-11 JP JP2018002342A patent/JP2019121750A/ja not_active Ceased
-
2019
- 2019-01-11 CN CN201910026345.7A patent/CN110034021B/zh active Active
- 2019-01-11 US US16/245,411 patent/US10658193B2/en active Active
- 2019-01-11 KR KR1020190003675A patent/KR20190085873A/ko active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637061A (ja) * | 1992-07-14 | 1994-02-10 | Nec Corp | 有機膜のエッチング方法 |
JPH06196453A (ja) * | 1992-12-24 | 1994-07-15 | Kawasaki Steel Corp | レジストの剥離方法 |
JP2000100798A (ja) * | 1998-07-22 | 2000-04-07 | Canon Inc | プラズマ処理装置及びプラズマ処理方法 |
JP2004259819A (ja) * | 2003-02-25 | 2004-09-16 | Hitachi High-Technologies Corp | 試料の表面処理装置及び表面処理方法 |
US20060016781A1 (en) * | 2004-07-26 | 2006-01-26 | Kenichi Kuwabara | Dry etching method |
JP2012511254A (ja) * | 2008-12-04 | 2012-05-17 | マイクロン テクノロジー, インク. | 基板作製方法 |
JP2011003722A (ja) * | 2009-06-18 | 2011-01-06 | Toshiba Corp | 半導体装置の製造方法 |
JP2012195569A (ja) * | 2011-03-03 | 2012-10-11 | Tokyo Electron Ltd | 半導体装置の製造方法及びコンピュータ記録媒体 |
JP2013183063A (ja) * | 2012-03-02 | 2013-09-12 | Tokyo Electron Ltd | 半導体装置の製造方法及びコンピュータ記録媒体 |
JP2014036148A (ja) * | 2012-08-09 | 2014-02-24 | Tokyo Electron Ltd | 多層膜をエッチングする方法、及びプラズマ処理装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112530800A (zh) * | 2019-09-18 | 2021-03-19 | 东京毅力科创株式会社 | 蚀刻方法和基板处理系统 |
JP7635287B2 (ja) | 2023-03-23 | 2025-02-25 | キヤノン株式会社 | 原版、原版のパターン決定方法、露光方法及び物品の製造方法 |
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US20190214267A1 (en) | 2019-07-11 |
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US10658193B2 (en) | 2020-05-19 |
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