JP4344949B2 - シャワーヘッド、シャワーヘッドを含む成膜装置、ならびに強誘電体膜の製造方法 - Google Patents
シャワーヘッド、シャワーヘッドを含む成膜装置、ならびに強誘電体膜の製造方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000151 deposition Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 88
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 239000003990 capacitor Substances 0.000 description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000013078 crystal Substances 0.000 description 7
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 238000000224 chemical solution deposition Methods 0.000 description 3
- 229910052741 iridium Inorganic materials 0.000 description 3
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 3
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 125000002524 organometallic group Chemical group 0.000 description 2
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- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
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- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
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- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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
- C23C16/45565—Shower nozzles
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- 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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- 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
- H01L21/02104—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
- H01L21/02172—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 at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides
- H01L21/02197—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 at least one metal element, e.g. metal oxides, metal nitrides, metal oxynitrides or metal carbides the material having a perovskite structure, e.g. BaTiO3
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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
- H01L21/314—Inorganic layers
- H01L21/316—Inorganic layers composed of oxides or glassy oxides or oxide based glass
- H01L21/31691—Inorganic layers composed of oxides or glassy oxides or oxide based glass with perovskite structure
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- Microelectronics & Electronic Packaging (AREA)
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- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Description
強誘電体膜の成膜に用いられるシャワーヘッドにおいて、
少なくとも前記強誘電体膜を構成する金属元素を含む第1ガスが流入される第1ガス室と、
少なくとも前記第1ガスと反応する第2ガスが流入される第2ガス室と、
前記第1ガス室と接続された第1ノズルと、
前記第2ガス室と接続された第2ノズルと、を含み、
前記第1ノズルは、前記第1ガスを放出する第1放出口を備え、
前記第2ノズルは、前記第2ガスを放出する第2放出口を備え、
前記第1放出口は、前記第2放出口よりも突出している。
成膜に用いられるシャワーヘッドにおいて、
第1ガスが流入される第1ガス室と、
第2ガスが流入される第2ガス室と、
前記第1ガス室に接続された第1ノズルと、
前記第2ガス室に接続された第2ノズルと、を含み、
前記第1ノズルは、前記第1ガスを放出する第1放出口を備え、
前記第2ノズルの内壁の少なくとも一部は、前記第1放出口に向かっている形状を有している。
前記第2ノズルは、前記第2ガス室側に位置する第1部分と、該第2ガスが放出される側に位置する第2部分とを有し、該第2部分は逆テーパ形状であることができる。
前記逆テーパ形状をなす側面は、曲面である、シャワーヘッド。
前記第2ノズルは、前記第2ガスを放出する第2放出口を備え、
前記第1放出口の一部と前記第2放出口の一部とが接触している、シャワーヘッド。
前記シャワーヘッドは、強誘電体膜の成膜に用いられ、
前記第1ガスは、少なくとも前記強誘電体膜を構成する金属元素を含み、
前記第2ガスは、少なくとも前記第1ガスと反応するガスを含む、シャワーヘッド。
所定の膜を堆積させるための成膜装置において、
処理容器と、
前記処理容器内に設置された、上述の本発明にかかるシャワーヘッドを含む。
1.1.第1の実施の形態
次に、本発明にかかる成膜装置の実施の形態の一例について、図面を参照しつつ説明する。図1は、本実施の形態にかかる成膜装置1000を模式的に示す図である。図2は、本実施の形態にかかる成膜装置1000に含まれるシャワーヘッド200を拡大して示す図である。
次に、第2の実施の形態にかかる成膜装置について、図3を参照しつつ説明する。図3(A)は、第2の実施の形態にかかるシャワーヘッド230を説明する図であり、図2に対応した部分を示す。図3(B)は、図3(A)のa部を拡大して示す図である。なお、第2の実施の形態にかかる成膜装置は、第1の実施の形態と比して、噴射面222に設けられる第2放出口224の形状が異なる例である。成膜装置1000の構造については、共通するため、その詳細な説明は省略する。
次に、第3の実施の形態にかかる成膜装置について、図4を参照しつつ説明する。図4(A)は、第3の実施の形態にかかるシャワーヘッド260を説明する図であり、図2に対応した部分を示す。図4(B)は、図4(A)のa部を拡大して示す図である。なお、第3の実施の形態にかかる成膜装置は、第1の実施の形態と比して、噴射面222に設けられる第2放出口224の形状が異なる例である。成膜装置1000の構造については、共通するため、その詳細な説明は省略する。
次に、上記1.の項で説明した成膜装置を用いた強誘電体膜の成膜方法について図5および図6を参照しつつ説明する。なお、この成膜方法の説明では、強誘電体膜の上下に電極が設けられた強誘電体キャパシタを形成する場合を例として説明する。図5および図6は、強誘電体キャパシタの製造工程を模式的に示す断面図である。
Claims (5)
- 第1ガスが流入される第1ガス室と、
第2ガスが流入される第2ガス室と、
第1放出口を備え、前記第1ガス室の流出口に接続された第1ノズルと、
第2放出口を備え、前記第2ガス室の流出口に接続された第2ノズルと、
を含み、
前記第2ノズルを前記第2放出口の面に垂直な面に投影したとき、前記第2ノズルの側面は前記第2ガス室の流出口から前記第2放出口に向かう曲線であり、前記曲線は前記第2放出口に向かって凸である、シャワーヘッド。 - 第1ガスが流入される第1ガス室と、
第2ガスが流入される第2ガス室と、
第1放出口を備え、前記第1ガス室の流出口に接続された第1ノズルと、
第2放出口を備え、前記第2ガス室の流出口に接続された第2ノズルと、
を含み、
第2ノズルを前記第2放出口の面に投影したとき、前記第2ガス室の流出口の領域は前記第2放出口の領域に含まれ、
前記第1放出口と前記第2放出口とは連続している、シャワーヘッド。 - 請求項2において、
前記第2ノズルは、前記第2ガス室側に位置する第1部分と、該第2ガスが放出される側に位置する第2部分とを有し、該第2部分は逆テーパ形状である、シャワーヘッド。 - 所定の膜を堆積させるための成膜装置において、
処理容器と、
前記処理容器内に設置された、請求項1ないし3のいずれかに記載のシャワーヘッドを含む、成膜装置。 - 請求項4に記載の成膜装置を用いて形成される、強誘電体膜の製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005374502A JP4344949B2 (ja) | 2005-12-27 | 2005-12-27 | シャワーヘッド、シャワーヘッドを含む成膜装置、ならびに強誘電体膜の製造方法 |
US11/615,315 US20070148349A1 (en) | 2005-12-27 | 2006-12-22 | Showerhead, film forming apparatus including showerhead and method for manufacturing ferroelectric film |
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JP2005374502A JP4344949B2 (ja) | 2005-12-27 | 2005-12-27 | シャワーヘッド、シャワーヘッドを含む成膜装置、ならびに強誘電体膜の製造方法 |
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JP4344949B2 true JP4344949B2 (ja) | 2009-10-14 |
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