JP4679510B2 - 堆積システムにおける堆積物の形成を制御するための方法および装置、ならびにそれらを含む堆積システムおよび方法 - Google Patents
堆積システムにおける堆積物の形成を制御するための方法および装置、ならびにそれらを含む堆積システムおよび方法 Download PDFInfo
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- 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
- C23C16/45519—Inert gas curtains
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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
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
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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
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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
- C23C16/48—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 by irradiation, e.g. photolysis, radiolysis, particle radiation
- C23C16/488—Protection of windows for introduction of radiation into the coating chamber
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Description
本発明は、海軍研究事務所により与えられた海軍研究事務所契約番号N00014−02−C−0302に基づいて、政府支援で行われた。政府は、本発明において一定の権利を有する。
L=サセプタの長さ
M=質量流量
ρ=圧力、温度およびガス組成によって決定されるサセプタ内部におけるガスの平均密度
A=サセプタ開口部の断面積
Claims (52)
- 基板上に膜を堆積させるための堆積システムにおいて寄生堆積物を制御するための方法であって、その型の堆積システムは、基板を収容するための反応室を画定し、および反応室中のプロセスガスおよび反応室と隣接する内部表面を含み、該方法は:
反応室の中のプロセスガスの温度よりも高い温度で反応室にバッファガスを与えること、および
前記バッファガスを流して内部表面とプロセスガスの少なくとも一部との間に流動するガスバリア層を形成して、流動するガスバリア層が内部表面とプロセスガスの成分との間の接触を阻止するようにすること
を含むことを特徴とする方法。 - バッファガスを流す工程が、内部表面に沿ってバッファガスを流すことを含むこと特徴とする請求項1に記載の方法。
- 反応室を貫いて流れ方向にプロセスガスを流すことを含む方法であって、およびバッファガスを流す工程が反応室を貫いて前記流れ方向にバッファガスを流すことを含むことを特徴とする請求項1に記載の方法。
- バッファガスを流す工程が、プロセスガスと実質的に同じ速度で反応室を貫いてバッファガスを流すことを含むことを特徴とする請求項3に記載の方法。
- それぞれの流れの中および流れ間の乱流を阻止するように、バッファガスおよびプロセスガスの両方を流れ方向に沿って実質的に同じ位置において反応室へ導入することを含むことを特徴とする請求項3に記載の方法。
- プロセスガス注入口を通して反応室の中へプロセスガスを流すことを含み、および:
プロセスガス注入口が、反応室の中にバッファガス領域を画定するように、反応室の断面よりも小さい断面積を有することと;
バッファガスを流す工程が、バッファガス領域の中へバッファガスを流すことを含むことと
を特徴とする請求項1に記載の方法。 - バッファガスを流す工程が、内部表面に沿ってバッファガスの実質的に層状の流れを与えることを含むことを特徴とする請求項1に記載の方法。
- 内部表面が基板の上方に位置することを特徴とする請求項1に記載の方法。
- バッファガスを反応室の中へ導入する前にバッファガスを加熱することを含むことを特徴とする請求項1に記載の方法。
- バッファガスが内部表面に沿って流れる際にバッファガスを加熱することを含むことを特徴とする請求項1に記載の方法。
- 内部表面上に堆積するプロセスガスからの寄生堆積物の昇華を促進するのに十分な温度まで内部表面を加熱することを含むことを特徴とする請求項1に記載の方法。
- 内部表面と隣接するサセプタ部材を誘導的に加熱し、それによって内部表面を加熱することを含むことを特徴とする請求項1に記載の方法。
- バッファガスを流す工程が、少なくとも約1m/sの速度で反応室を貫いてバッファガスを流すことを含むことを特徴とする請求項1に記載の方法。
- バッファガスを流す工程が、約5m/sと100m/sとの間の速度で反応室を貫いてバッファガスを流すことを含むことを特徴とする請求項13に記載の方法。
- バッファガスが希ガスを含むことを特徴とする請求項1に記載の方法。
- バッファガスが、H2、N2、NH3および/または空気を含むことを特徴とする請求項1に記載の方法。
- バッファガスが、内部表面上の寄生堆積物の堆積を化学的に阻止すること、および/または内部表面から寄生堆積物を除去することができる活性物質を含むことを特徴とする請求項1に記載の方法。
- 活性物質がエッチング剤を含むことを特徴とする請求項17に記載の方法。
- 前記エッチング剤が、HCl、Cl2および炭素含有ガスの少なくとも1つを含むことを特徴とする請求項18に記載の方法。
- 堆積システムが化学気相堆積(CVD)システムであることを特徴とする請求項1に記載の方法。
- 堆積システムがホットウォール型CVDシステムであることを特徴とする請求項20に記載の方法。
- 基板が半導体基板であることを特徴とする請求項1に記載の方法。
- 基板が、SiC、サファイア、III族窒化物、ケイ素、ゲルマニウム、およびIII−V化合物およびIII−VI化合物およびインターアロイからなる群から選択される材料を含むことを特徴とする請求項22に記載の方法。
- プロセスガスが、SiH4、C3H8、C2H4、Si2H6、SiCl4、SiH2Cl2、SiCl3(CH3)、NH3、トリメチルガリウム、およびトリメチルアルミニウムからなる群から選択される試薬を含むことを特徴とする請求項1に記載の方法。
- プロセスガスが、SiC、III族窒化物、ケイ素、ゲルマニウム、およびIII−V化合物およびIII−VI化合物およびインターアロイからなる群から選択される材料の層を基板上に堆積させるのに適合することを特徴とする請求項1に記載の方法。
- 前記バッファガスの平均温度は、前記反応室内のプロセスガスの平均温度よりも少なくとも10℃高温であることを特徴とする請求項1に記載の方法。
- プロセスガスを使用する、基板上に膜を堆積させるための堆積システムであって、前記堆積システムが:
a)基板およびプロセスガスを収容するのに適合する反応室と;
b)反応室と隣接する内部表面と;
c)プロセスガスを反応室の中に配置するときに、バッファガスの流れがガスバリア層を形成して内部表面とプロセスガスの成分との間の接触を阻止するように、内部表面とプロセスガスの少なくとも一部との間にバッファガスの流れを供給するのに適合するバッファガス供給系と
を含み、前記堆積システムが反応室の中のプロセスガスの温度よりも高い温度で反応室にバッファガスを与えるのに適合することを特徴とする堆積システム。 - バッファガス供給系が、内部表面に沿ってバッファガスを流すのに適合することを特徴とする請求項27に記載のシステム。
- 反応室にプロセスガスの流れを供給するためのプロセスガス供給系を含むことを特徴とする請求項27に記載のシステム。
- プロセスガス供給系が、反応室を貫いて流れ方向にプロセスガスの流れを供給するのに適合し;およびバッファガス供給系が、前記反応室を貫いて前記流れ方向にバッファガスを流すのに適合する
ことを特徴とする請求項29に記載のシステム。 - バッファガス供給系およびプロセスガス供給系が、実質的に同じ速度で反応室を貫いてバッファガスおよびプロセスガスを流すのに適合することを特徴とする請求項30に記載の方法。
- バッファガス供給系およびプロセスガス供給系が、バッファガス流およびプロセスガス流の中および間の乱流を阻止するように、バッファガスおよびプロセスガスの両方を流れ方向に沿って実質的に同じ位置において反応室の中へ導入するのに適合することを特徴とする請求項29に記載のシステム。
- 反応室にプロセスガスを供給するためのプロセスガス注入口を含み:
反応室の中にバッファガス領域を画定するように、プロセスガス注入口が反応室の断面積より小さい断面積を有し;および
バッファガス供給系が、バッファガス領域の中へバッファガスを流すのに適合する
ことを特徴とする請求項29に記載のシステム。 - バッファガス供給系が、内部表面に沿ってバッファガスの実質的に層状の流れを与えるのに適合することを特徴とする請求項27に記載のシステム。
- 内部表面が反応室の天井表面であることを特徴とする請求項27に記載のシステム。
- バッファガス供給系が、反応室の中へバッファガスを導入する前にバッファガスを加熱するのに適合することを特徴とする請求項27に記載のシステム。
- バッファガスが内部表面に沿って流れる際にバッファガスを加熱するのに適合することを特徴とする請求項27に記載のシステム。
- 内部表面上に堆積するプロセスガスからの寄生堆積物の昇華を促進するのに十分な温度まで内部表面を加熱するのに適合することを特徴とする請求項27に記載のシステム。
- バッファガス供給系が、反応室を貫いて少なくとも約1m/sの速度でバッファガスを流すのに適合することを特徴とする請求項27に記載のシステム。
- バッファガス供給系が、反応室を貫いて約5m/sと100m/sとの間の速度でバッファガスを流すのに適合することを特徴とする請求項39に記載のシステム。
- バッファガス供給系がバッファガスの供給源を含むことを特徴とする請求項27に記載のシステム。
- バッファガスが希ガスを含むことを特徴とする請求項41に記載のシステム。
- バッファガスが、H2、N2、NH3および/または空気を含むことを特徴とする請求項41に記載のシステム。
- バッファガスが、内部表面上の寄生堆積物の堆積を化学的に阻止すること、および/または内部表面から寄生堆積物を除去することができる活性物質を含むことを特徴とする請求項41に記載のシステム。
- 活性物質がエッチング剤を含むことを特徴とする請求項44に記載のシステム。
- 前記エッチング剤が、HCl、Cl2および炭素含有ガスの少なくとも1つを含むことを特徴とする請求項45に記載のシステム。
- システムがホットウォール型CVDシステムであることを特徴とする請求項27に記載のシステム。
- プロセスガスを反応室の中に配置する際に、プロセスガスと接触するのに適合する第2の表面よりも高い温度まで内部表面を加熱するのに適合することを特徴とする請求項27に記載のシステム。
- 第2の表面は第1の材料を含み、および内部表面は第2の材料を含み、前記第2の材料が第1の材料よりも低い放射率を有することを特徴とする請求項48に記載のシステム。
- 第2の表面がSiCで形成され、および内部表面が金属炭化物で形成されることを特徴とする請求項49に記載のシステム。
- 第2の表面が、TaCおよびNbCの少なくとも1つで形成されることを特徴とする請求項50に記載のシステム。
- 渦電流に応答して内部表面および第2の表面のそれぞれを加熱する少なくとも1つのサセプタ部材を含むことを特徴とする請求項49に記載のシステム。
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US10/414,787 US7118781B1 (en) | 2003-04-16 | 2003-04-16 | Methods for controlling formation of deposits in a deposition system and deposition methods including the same |
PCT/US2004/004943 WO2005028701A2 (en) | 2003-04-16 | 2004-02-19 | Methods and apparatus for controlling formation of deposits in a deposition system and deposition systems and methods including the same |
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ATE486977T1 (de) | 2010-11-15 |
EP1613791A2 (en) | 2006-01-11 |
EP1613791B1 (en) | 2010-11-03 |
DE602004029877D1 (de) | 2010-12-16 |
JP2011021278A (ja) | 2011-02-03 |
US20060216416A1 (en) | 2006-09-28 |
TW200427861A (en) | 2004-12-16 |
EP2253734B1 (en) | 2015-04-22 |
US20070101939A1 (en) | 2007-05-10 |
US7118781B1 (en) | 2006-10-10 |
WO2005028701A2 (en) | 2005-03-31 |
JP5209022B2 (ja) | 2013-06-12 |
EP2253734A2 (en) | 2010-11-24 |
WO2005028701A3 (en) | 2005-06-30 |
JP2006523777A (ja) | 2006-10-19 |
US8430960B2 (en) | 2013-04-30 |
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