JP6294151B2 - 成膜方法 - Google Patents
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- JP6294151B2 JP6294151B2 JP2014098573A JP2014098573A JP6294151B2 JP 6294151 B2 JP6294151 B2 JP 6294151B2 JP 2014098573 A JP2014098573 A JP 2014098573A JP 2014098573 A JP2014098573 A JP 2014098573A JP 6294151 B2 JP6294151 B2 JP 6294151B2
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- 238000000151 deposition Methods 0.000 title claims description 7
- 239000007789 gas Substances 0.000 claims description 166
- 238000000926 separation method Methods 0.000 claims description 56
- 238000000034 method Methods 0.000 claims description 50
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 33
- 238000012545 processing Methods 0.000 claims description 30
- 239000000758 substrate Substances 0.000 claims description 16
- 230000001590 oxidative effect Effects 0.000 claims description 11
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 238000005121 nitriding Methods 0.000 claims description 6
- 239000011261 inert gas Substances 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 9
- 238000002955 isolation Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 176
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 48
- 239000012495 reaction gas Substances 0.000 description 30
- 230000015572 biosynthetic process Effects 0.000 description 29
- 230000002093 peripheral effect Effects 0.000 description 12
- 238000012546 transfer Methods 0.000 description 10
- 238000010926 purge Methods 0.000 description 8
- 238000011534 incubation Methods 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002052 molecular layer Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- -1 and for example Chemical compound 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000010438 heat treatment 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
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- HDZGCSFEDULWCS-UHFFFAOYSA-N monomethylhydrazine Chemical compound CNN HDZGCSFEDULWCS-UHFFFAOYSA-N 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/06—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of metallic material
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/40—Oxides
- C23C16/405—Oxides of refractory metals or yttrium
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45548—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction
- C23C16/45551—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction for relative movement of the substrate and the gas injectors or half-reaction reactor compartments
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45574—Nozzles for more than one gas
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/458—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
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Description
前記基板上に形成された前記下地膜上にTiO2の連続膜を成膜する工程と、
前記TiO2の連続膜上に、前記TiO2膜よりも厚いTiNの連続膜を成膜する工程と、を有する。
始めに、本発明の実施形態による成膜方法を実施するのに好適な成膜装置について説明する。図1から図3までを参照すると、この成膜装置は、ほぼ円形の平面形状を有する扁平な真空容器1と、この真空容器1内に設けられ、真空容器1の中心に回転中心を有する回転テーブル2と、を備えている。真空容器1は、有底の円筒形状を有する容器本体12と、容器本体12の上面に対して、例えばOリングなどのシール部材13(図1)を介して気密に着脱可能に配置される天板11とを有している。
次に、本発明の実施形態に係る成膜方法について、図6を参照しながら説明する。以下の説明では、上述の成膜装置を用いる場合を例にとる。
次に、上述の成膜方法の効果を確認するために行った実施例について説明する。以下の説明において、説明の便宜上、回転テーブル2を回転しつつTiCl4ガスと酸化ガスを供給するステップ(S120)を「TiO2成膜ステップ」といい、回転テーブル2を回転しつつTiCl4ガスとNH3ガスを供給するステップ(S170)を「TiN成膜ステップ」という。また、TiO2成膜ステップとTiN成膜ステップにおけるウエハWの温度は同一である。
Claims (10)
- SiO 2 膜の下地膜が形成された基板上にTiNの連続膜を成膜する成膜方法であって、
前記基板上に形成された前記下地膜上にTiO2の連続膜を成膜する工程と、
前記TiO2の連続膜上に、前記TiO2膜よりも厚いTiNの連続膜を成膜する工程と、を有する成膜方法。 - 前記TiNの連続膜を成膜する工程は、8nm以下の膜厚の前記TiNの連続膜を成膜する工程である請求項1に記載の成膜方法。
- 前記TiNの連続膜を成膜する工程は、4nm以下の膜厚の前記TiNの連続膜を成膜する工程である請求項1に記載の成膜方法。
- 前記TiO2の連続膜を成膜する工程は、2nm以下の膜厚の前記TiO2の連続膜を成膜する工程である請求項1乃至3のいずれか一項に記載の成膜方法。
- 前記TiO2の連続膜を成膜する工程と、前記TiNの連続膜を成膜する工程は、ALD法により行われる請求項1乃至4のいずれか一項に記載の成膜方法。
- 前記基板は、回転テーブル上に載置され、
該回転テーブルの回転方向に沿って第1の処理領域と第2の処理領域とが互いに離間して設けられるとともに、該第1の処理領域に第1のガスノズル、該第2の処理領域に少なくとも1本の第2のガスノズルがそれぞれ設けられ、
前記TiO2の連続膜を成膜する工程は、前記第1のガスノズルからTi含有ガス、前記少なくとも1本の第2のガスノズルから酸化ガスをそれぞれ供給しながら前記回転テーブルを回転させて前記基板を前記第1の処理領域と前記第2の処理領域とを順次通過させることにより行われ、
前記TiNの連続膜を成膜する工程は、前記第1のガスノズルから前記Ti含有ガス、前記少なくとも1本の第2のガスノズルから窒化ガスをそれぞれ供給しながら前記回転テーブルを回転させて前記基板を前記第1の処理領域と前記第2の処理領域とを順次通過させることにより行われる請求項5に記載の成膜方法。 - 前記Ti含有ガスは、TiCl4ガスである請求項6に記載の成膜方法。
- 前記窒化ガスは、NH3ガスである請求項6又は7に記載の成膜方法。
- 前記少なくとも1本の第2のガスノズルは、複数のガスノズルを含み、
前記酸化ガスと前記窒化ガスは、異なるガスノズルから供給される請求項6乃至8のいずれか一項に記載の成膜方法。 - 前記回転テーブルの回転方向における前記第1の処理領域と前記第2の処理領域との間には、不活性ガスを供給する第1及び第2の分離領域が設けられ、
前記TiO2の連続膜を成膜する工程及び前記TiNの連続膜を成膜する工程において、前記回転テーブルを回転させることにより、前記基板は前記第1の処理領域、前記第1の分離領域、前記第2の処理領域、前記第2の分離領域を順次通過する請求項6乃至9のいずれか一項に記載の成膜方法。
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JP2014098573A JP6294151B2 (ja) | 2014-05-12 | 2014-05-12 | 成膜方法 |
US14/700,593 US9441291B2 (en) | 2014-05-12 | 2015-04-30 | Method of depositing a film |
TW104114659A TWI604083B (zh) | 2014-05-12 | 2015-05-08 | 成膜方法 |
KR1020150065193A KR101862907B1 (ko) | 2014-05-12 | 2015-05-11 | 성막 방법 |
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JP6851173B2 (ja) | 2016-10-21 | 2021-03-31 | 東京エレクトロン株式会社 | 成膜装置および成膜方法 |
JP6937604B2 (ja) * | 2017-04-26 | 2021-09-22 | 東京エレクトロン株式会社 | タングステン膜を形成する方法 |
SG11202102655YA (en) * | 2018-09-20 | 2021-04-29 | Kokusai Electric Corp | Substrate processing apparatus, method of manufacturing semiconductor device and program |
CN114059040A (zh) * | 2021-11-24 | 2022-02-18 | 四川大学 | 一种在管网内表面上TiN涂层的沉积方法及装置 |
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US5691044A (en) * | 1994-12-13 | 1997-11-25 | Asahi Glass Company, Ltd. | Light absorptive antireflector |
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