JP5738349B2 - 反応気体の噴射速度を積極的に調節するシャワーヘッドを備えた化学気相蒸着装置およびその方法 - Google Patents
反応気体の噴射速度を積極的に調節するシャワーヘッドを備えた化学気相蒸着装置およびその方法 Download PDFInfo
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- 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
- 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
- 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
- C23C16/45578—Elongated nozzles, tubes with holes
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Description
Claims (5)
- 反応チャンバ内に置かれている基板上に膜を蒸着させるために、反応気体とパージ気体とを、シャワーヘッドを介して前記基板上に噴射するシャワーヘッドを用いた化学気相蒸着装置において、
前記シャワーヘッドは、
内部に前記反応気体を供給する反応気体流入口を具備し、底面に取り付けられた複数の反応気体噴射チューブを有して、前記反応気体を前記反応気体噴射チューブを介して前記基板上に噴射する反応気体シャワーヘッドモジュールと、
パージ気体シャワーヘッドモジュールであって、前記反応気体シャワーヘッドモジュールの下側に設置され、パージ気体を該パージ気体シャワーヘッドモジュール内部に供給するパージ気体供給口を備え、前記反応気体噴射チューブが該パージ気体シャワーヘッドモジュールの内部を通過するとともに、前記反応気体噴射チューブとの密封を維持するパージ気体シャワーヘッドモジュールと、
前記パージ気体シャワーヘッドモジュールの下に取り付けられ、天井、垂直壁、冷却材の流入口および冷却材の流出口、底面を備え、前記シャワーヘッドを冷却する冷却ジャケットと、
前記冷却ジャケットの天井と底面との間にその両端が密閉挿入されて前記反応気体噴射チューブを収納するように構成される案内管とを含んで構成され、
前記案内管の内径は前記反応気体噴射チューブの外径よりも大きく、前記案内管と前記反応気体噴射チューブとの間に隙間が設けられており、
前記シャワーヘッドは、前記パージ気体シャワーヘッドモジュールから排出された前記パージ気体が前記案内管と前記反応気体噴射チューブとの間の隙間を通過して、前記基板に噴射されるように構成されることを特徴とする、シャワーヘッドを備えた化学気相蒸着装置。 - 前記冷却ジャケットは前記冷却ジャケットの天井と底面との間に取り付けられた複数の追加的な案内管をさらに備え、前記パージ気体シャワーヘッドモジュールから排出された前記パージ気体が前記追加的な案内管の内部を通過して前記基板に噴射されることを特徴とする、請求項1に記載のシャワーヘッドを備えた化学気相蒸着装置。
- 前記反応気体噴射チューブは前記冷却ジャケットの底面から基板側に0〜10mmの範囲で突出し、前記反応気体噴射チューブの端部は窄まったノズルの形状を有し、前記ノズルの出口の内径は0.8〜2mmであることを特徴とする、請求項1または2に記載のシャワーヘッドを備えた化学気相蒸着装置。
- 前記反応チャンバの内部に設置された基板を取り囲む反応気体閉じ込め装置であって、
前記反応気体閉じ込め装置は側壁と天井とを備え、前記反応気体閉じ込め装置の内側領域と外側領域とが連通し得るように表面に複数の孔が設けられており、前記側壁は反応チャンバの底部まで延長していることにより、前記反応チャンバの天井と前記反応気体閉じ込め装置の天井との間に所定の大きさの空間が設けられてなる反応気体閉じ込め装置と、
第2のパージ気体を前記反応チャンバに供給する、前記反応チャンバの天井に設けられる第2のパージ気体供給ポートと、
反応チャンバから副産物を排出させるために前記反応気体閉じ込め装置の内部領域に設置される排気口とをさらに含む化学気相蒸着装置において、
前記第2のパージ気体供給ポートを介して供給される第2のパージ気体が、前記空間を通り、前記反応気体閉じ込め装置の表面に設けられている複数の孔を介して前記反応気体閉じ込め装置の内部に流入し、その流入する時間当たりの流量が調節されることにより前記反応気体閉じ込め装置の汚染を防ぎ、基板の付近で反応気体の濃度を増大させて、基板上で成長する膜の成長速度を高める役割を果たしてなることを特徴とする、請求項1または2に記載のシャワーヘッドを備えた化学気相蒸着装置。 - 前記反応チャンバの内部に設置された基板を取り囲む反応気体閉じ込め装置であって、
前記反応気体閉じ込め装置は垂直壁と平らな縁部付き天井とを備え、前記反応気体閉じ込め装置の内側領域と外側領域とが連通し得るように表面に複数の孔が設けられており、前記垂直壁は反応チャンバの底部まで延長していることにより、前記反応チャンバの天井と前記反応気体閉じ込め装置の天井との間に所定の大きさの空間が設けられ、前記垂直壁を下降させて前記反応気体閉じ込め装置の前記垂直壁と前記反応チャンバの垂直な内壁間に隙間を設けることが可能な反応気体閉じ込め装置と、
第2のパージ気体を前記反応チャンバに供給する、前記反応チャンバの天井に設けられる第2のパージ気体供給ポートと、
反応チャンバから副産物を排出させるために前記反応気体閉じ込め装置の内部領域に設置される排気口とをさらに含む化学気相蒸着装置において、
前記第2のパージ気体供給ポートを介して供給される第2のパージ気体が、前記空間を通り、前記反応気体閉じ込め装置の表面に設けられている複数の孔を介して前記反応気体閉じ込め装置の内部に流入し、その流入する時間当たりの流量が調節されることにより前記反応気体閉じ込め装置の汚染を防ぎ、基板の付近で反応気体の濃度を増大させて、基板上で成長する膜の成長速度を高める役割を果たしてなることを特徴とする、請求項1または2に記載のシャワーヘッドを備えた化学気相蒸着装置。
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KR1020070008668A KR100849929B1 (ko) | 2006-09-16 | 2007-01-29 | 반응 기체의 분사 속도를 적극적으로 조절하는 샤워헤드를구비한 화학기상 증착 방법 및 장치 |
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US9469900B2 (en) | 2016-10-18 |
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US20090169744A1 (en) | 2009-07-02 |
JP2010503768A (ja) | 2010-02-04 |
US20150000594A1 (en) | 2015-01-01 |
US8882913B2 (en) | 2014-11-11 |
US20150004313A1 (en) | 2015-01-01 |
KR100849929B1 (ko) | 2008-08-26 |
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