JP7365973B2 - ガスノズル、基板処理装置及び基板処理方法 - Google Patents
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- C23C16/45563—Gas nozzles
- C23C16/45574—Nozzles for more than one gas
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Description
図1及び図2を参照し、実施形態の基板処理装置の一例について説明する。図1は、実施形態の基板処理装置の一例を示す概略図である。図2は、ガスノズルの配置を説明するための図である。
図3~図5を参照し、実施形態の基板処理装置1が備えるガスノズル32の構成例について説明する。
図6を参照し、パーティクル発生のメカニズムについて説明する。図6は、パーティクル発生のメカニズムを説明するための図である。図6は、互いに反応するAガスとBガスとをパージを挟んで交互に供給してAガスとBガスとの反応生成物を堆積させる原子層堆積(ALD:Atomic Layer Deposition)法の動作を示す。
実施形態の基板処理方法について、前述の基板処理装置1を用いてALD法により、ウエハWにシリコン酸化膜を成膜する方法を例に挙げて説明する。
実施例では、実施形態に係る基板処理装置1の効果を確認するために、先端孔の孔径、数及び管軸に対する配向角度(以下「配向角度」という。)が異なるガスノズルからオゾンガスを吐出させたときのオゾンガスの流速分布及び濃度分布について数値解析を行った。数値解析では、Ansys社製の流体解析ソフトウェアFluentを用いた。
実施例1では、3種類のガスノズルA1~A3からオゾンガスを吐出させたときのオゾンガスの流速分布を解析した。
実施例2では、3種類のガスノズルA1、A4、A5からオゾンガスを吐出させたときのオゾンガスの流速分布を解析した。
実施例3では、4種類のガスノズルA6~A9からオゾンガスを吐出させたときのオゾンガスの流速分布について数値解析を行った。
実施例4では、ガスノズルA10からオゾンガスを吐出させたときのオゾンガスの流速分布について数値解析を行った。
実施例5では、実施例3と同じ4種類のガスノズルA6~A9からオゾンガスを吐出させたときのオゾンガスの濃度分布について数値解析を行った。
実施例6では、実施例4と同じガスノズルA10からオゾンガスを吐出させたときのオゾンガスの濃度分布について数値解析を行った。
10 処理容器
31、32 ガスノズル
31a、32a ガス孔
31b、32b 先端孔
31c、32c 第2の先端孔
Claims (8)
- 略円筒形状の処理容器の内壁内側に沿って鉛直方向に延設するガスノズルであって、
前記処理容器は、内管と、前記内管の外側を覆う外管と、を有し、
前記ガスノズルは、
長手方向に沿って間隔を空けて設けられた複数の第1のガス孔と、
先端に設けられ、長手方向からの平面視で前記複数の第1のガス孔が設けられる側と反対側に配向し、開口面積が前記複数の第1のガス孔の各々よりも大きい第2のガス孔と、
を有し、
前記第1のガス孔及び前記第2のガス孔は、前記内管の内部に設けられる、
ガスノズル。 - 前記第2のガス孔は、前記長手方向に対する配向角度が30度~90度である、
請求項1に記載のガスノズル。 - 前記第2のガス孔は、円形、楕円形、長方形又は角丸長方形の開口である、
請求項1又は2に記載のガスノズル。 - 前記先端に設けられ、前記長手方向からの平面視で前記複数の第1のガス孔が設けられる側と反対側であり、前記第2のガス孔と異なる方向に配向する第3のガス孔を有する、
請求項1乃至3のいずれか一項に記載のガスノズル。 - 前記第1のガス孔は、前記処理容器の中心側に配向し、
前記第2のガス孔は、前記処理容器の近傍の内壁側に配向する、
請求項1乃至4のいずれか一項に記載のガスノズル。 - 略円筒形状の処理容器と、
前記処理容器の内壁内側に沿って鉛直方向に延設するガスノズルと、
を備え、
前記処理容器は、内管と、前記内管の外側を覆う外管と、を有し、
前記ガスノズルは、
長手方向に沿って間隔を空けて設けられた複数の第1のガス孔と、
先端に設けられ、長手方向からの平面視で前記複数の第1のガス孔が設けられる側と反対側に配向し、開口面積が前記複数の第1のガス孔の各々よりも大きい第2のガス孔と、
を有し、
前記第1のガス孔及び前記第2のガス孔は、前記内管の内部に設けられる、
基板処理装置。 - 第1のガスノズルから処理容器内に第1の処理ガスを吐出する工程と、
第2のガスノズルから前記処理容器内に前記第1の処理ガスと反応して反応生成物を生成する第2の処理ガスを吐出する工程と、
前記第1の処理ガスを吐出する工程と前記第2の処理ガスを吐出する工程とを含むサイクルを繰り返す工程と、
を有し、
前記第1のガスノズル及び前記第2のガスノズルは、略円筒形状の処理容器の内壁内側に沿って鉛直方向に延設し、
前記処理容器は、内管と、前記内管の外側を覆う外管と、を有し、
前記第2のガスノズルは、
長手方向に沿って間隔を空けて設けられた複数の第1のガス孔と、
先端に設けられ、長手方向からの平面視で前記複数の第1のガス孔が設けられる側と反対側に配向し、開口面積が前記複数の第1のガス孔の各々よりも大きい第2のガス孔と、
を有し、
前記第1のガス孔及び前記第2のガス孔は、前記内管の内部に設けられる、
基板処理方法。 - 前記第1の処理ガスは、シリコン又は金属を含有する原料ガスであり、
前記第2の処理ガスは、酸素又は窒素を含有する反応ガスである、
請求項7に記載の基板処理方法。
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JP2020106472A JP7365973B2 (ja) | 2020-06-19 | 2020-06-19 | ガスノズル、基板処理装置及び基板処理方法 |
KR1020210075529A KR20210157332A (ko) | 2020-06-19 | 2021-06-10 | 가스 노즐, 기판 처리 장치 및 기판 처리 방법 |
CN202110652056.5A CN113818008A (zh) | 2020-06-19 | 2021-06-11 | 气体喷嘴、基板处理装置以及基板处理方法 |
US17/304,119 US20210395893A1 (en) | 2020-06-19 | 2021-06-15 | Gas nozzle, substrate processing apparatus, and substrate processing method |
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Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2007110168A (ja) | 2003-08-26 | 2007-04-26 | Hitachi Kokusai Electric Inc | 半導体装置の製造方法および基板処理装置 |
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