JP7471972B2 - 処理装置及び処理方法 - Google Patents
処理装置及び処理方法 Download PDFInfo
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- 238000003672 processing method Methods 0.000 title claims description 6
- 238000000034 method Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 285
- 235000012431 wafers Nutrition 0.000 description 69
- 238000009826 distribution Methods 0.000 description 49
- 239000002994 raw material Substances 0.000 description 31
- 238000004088 simulation Methods 0.000 description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 18
- 229910052710 silicon Inorganic materials 0.000 description 18
- 239000010703 silicon Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 16
- 229910007264 Si2H6 Inorganic materials 0.000 description 14
- PZPGRFITIJYNEJ-UHFFFAOYSA-N disilane Chemical compound [SiH3][SiH3] PZPGRFITIJYNEJ-UHFFFAOYSA-N 0.000 description 14
- 238000010926 purge Methods 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000005229 chemical vapour deposition Methods 0.000 description 4
- 238000005979 thermal decomposition reaction Methods 0.000 description 4
- 238000000231 atomic layer deposition Methods 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 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
- C23C16/44—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
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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
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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
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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
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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
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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- 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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- 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
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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
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Description
図1及び図2を参照し、実施形態の処理装置の一例について説明する。図1は、実施形態の処理装置の一例を示す概略図である。図2は、ガスノズルの配置の一例を示す図である。
実施形態の処理方法の一例として、図1及び図2に示される処理装置1を用いて原子層堆積(ALD:Atomic Layer Deposition)法により、ウエハWにシリコン酸化膜を成膜する方法について説明する。
(実施例1)
実施例1では、図1及び図2に示される処理装置1を用いて、CVD法により、ウエハW上にシリコン膜を成膜した。実施例1では、1本のガスノズル34又は3本のガスノズル31,34,37からSi2H6を供給した。また、1本のガスノズル34から供給されるSi2H6の流量と、3本のガスノズル31,34,37から供給されるSi2H6の総流量とを同じ流量に設定した。より具体的には、1本のガスノズル34から供給されるSi2H6の流量を350sccmに設定し、3本のガスノズル31,34,37から供給されるSi2H6の流量をそれぞれ117sccmに設定した。なお、その他の条件については、1本のガスノズル34からSi2H6を供給した条件と、3本のガスノズル31,34,37からSi2H6を供給した条件とにおいて同じに設定した。
実施例2では、図1及び図2に示される処理装置1を用いて、CVD法により、ウエハW上にシリコン膜を成膜した。実施例2では、3本のガスノズル31,34,37から供給されるSi2H6の総流量を600sccmに固定した状態で、それぞれのガスノズル31,34,37から供給されるSi2H6の流量配分を変更させた。Si2H6の流量配分は、ガスノズル31/ガスノズル34/ガスノズル37=200/200/200sccm、150/300/150sccm、100/400/100sccm、0/600/0sccmの4水準である。
まず、図1及び図2に示される処理装置1において、ガスノズル31,34,37から吐出される原料ガスの流量配分を変更したときの処理容器10内の反応活性種の濃度分布について、熱流体解析によるシミュレーションを実施した。本シミュレーションでは、ガスノズル31から吐出される原料ガスの流量とガスノズル37から吐出される原料ガスの流量とを常に同じ流量に設定した。なお、反応活性種の濃度分布を解析の対象としたのは、ウエハW上に成膜される所定の膜の膜厚は、原料ガスが熱分解して生成される反応活性種の濃度に起因することを考慮したことによる。本シミュレーションにおける条件は以下である。
原料ガス:Si2H6
流量配分:X1~X7の7水準
X1:0/600/0sccm
X2:50/500/50sccm
X3:100/400/100sccm
X4:150/300/150sccm
X5:200/200/200sccm
X6:250/100/250sccm
X7:300/0/300sccm
原料ガス:Si2H6
流量配分:Y1~Y5の5水準
Y1:200/200/200sccm
Y2:250/200/150sccm
Y3:300/200/100sccm
Y4:350/200/50sccm
Y5:400/200/0sccm
10 処理容器
15 排気スリット
31,34,37 ガスノズル
W ウエハ
Claims (9)
- 略円筒形状を有し、側壁に排気スリットが形成された処理容器と、
前記処理容器の前記側壁の内側に沿って鉛直方向に延設する複数のガスノズルと、
を備え、
前記複数のガスノズルは、
前記処理容器の中心と前記排気スリットの中心とを結ぶ直線に対して対称配置された第1ガスノズル及び第2ガスノズルと、
前記直線上に配置された第3ガスノズルと、
を有し、
前記第1ガスノズル、前記第2ガスノズル及び前記第3ガスノズルは、同じ処理ガスを前記処理容器内に吐出する、
処理装置。 - 前記第1ガスノズル、前記第2ガスノズル及び前記第3ガスノズルは、前記処理容器内の同じ高さ範囲に前記処理ガスを吐出する、
請求項1に記載の処理装置。 - 前記第1ガスノズル、前記第2ガスノズル及び前記第3ガスノズルの各々は、その長手方向に沿って間隔を空けて設けられた複数のガス孔を有し、
前記複数のガス孔は、前記処理容器の中心側に配向する、
請求項1又は2に記載の処理装置。 - 前記第1ガスノズル、前記第2ガスノズル及び前記第3ガスノズルは、同じ内径を有する、
請求項1乃至3のいずれか一項に記載の処理装置。 - 前記第1ガスノズル、前記第2ガスノズル及び前記第3ガスノズルから前記処理容器内に吐出される前記処理ガスの流量を制御する制御部を更に備え、
前記制御部は、前記第1ガスノズル及び前記第2ガスノズルの各々から前記処理容器内に吐出される前記処理ガスの流量が同じとなるように制御する、
請求項1乃至4のいずれか一項に記載の処理装置。 - 略円筒形状を有し、側壁に排気スリットが形成された処理容器と、
前記処理容器の前記側壁の内側に沿って鉛直方向に延設する複数のガスノズルと、
を備え、
前記複数のガスノズルは、
前記処理容器の中心と前記排気スリットの中心とを結ぶ直線に対して対称配置された第1ガスノズル及び第2ガスノズルと、
前記直線に対して対称配置された第4ガスノズル及び第5ガスノズルと、
を有し、
前記第1ガスノズル、前記第2ガスノズル、前記第4ガスノズル及び前記第5ガスノズルは、同じ処理ガスを前記処理容器内に吐出する、
処理装置。 - 前記処理容器内には、複数の基板が鉛直方向に間隔を有して略水平に収容される、
請求項1乃至6のいずれか一項に記載の処理装置。 - 前記複数の基板は、前記処理容器内において鉛直方向を回転軸として回転可能である、
請求項7に記載の処理装置。 - 略円筒形状を有し、側壁に排気スリットが形成された処理容器内に基板を搬入する工程と、
前記処理容器の前記側壁の内側に沿って鉛直方向に延設する複数のガスノズルの各々から前記処理容器内に処理ガスを供給する工程と、
を有し、
前記複数のガスノズルは、
前記処理容器の中心と前記排気スリットの中心とを結ぶ直線に対して対称配置された第1ガスノズル及び第2ガスノズルと、
前記直線上に配置された第3ガスノズルと、
を有し、
前記処理ガスを供給する工程は、前記第1ガスノズル、前記第2ガスノズル及び前記第3ガスノズルから同じ処理ガスを前記処理容器内に吐出することを含む、
処理方法。
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JP2012023073A (ja) | 2010-07-12 | 2012-02-02 | Hitachi Kokusai Electric Inc | 基板処理装置および基板の製造方法 |
JP2015185837A (ja) | 2014-03-26 | 2015-10-22 | 東京エレクトロン株式会社 | 成膜装置 |
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JP2015185837A (ja) | 2014-03-26 | 2015-10-22 | 東京エレクトロン株式会社 | 成膜装置 |
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