JP7102478B2 - 基板処理装置、半導体装置の製造方法、プログラム及び基板処理方法 - Google Patents
基板処理装置、半導体装置の製造方法、プログラム及び基板処理方法 Download PDFInfo
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Description
基板を処理する複数の処理領域が設けられた処理室と、
前記処理室内に載置された前記基板を、前記基板外のある点を中心として回転させることにより前記複数の処理領域を順次通過させる回転テーブルと、
前記回転テーブルを回転させる回転機構と、を有し、
前記複数の処理領域は、前記基板に対して処理ガスを供給する第1の領域と、前記基板に対して不活性ガスを供給する第2の領域と、を有し、
前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう前記第2の領域に対応する前記回転テーブルの下側空間が構成される
技術を提供する。
図1および図2に示されているように、リアクタ200は、円筒状の気密容器である処理容器203を備えている。処理容器203は、例えばステンレス(SUS)やアルミ合金等で構成されている。処理容器203内には、基板Sを処理する処理室201が構成されている。処理容器203にはゲートバルブ205が接続されており、ゲートバルブ205を介して基板Sが搬入出される。なお、以下の説明において用いられる図面は、いずれも模式的なものであり、図面に示される、各要素の寸法の関係、各要素の比率等は、現実のものとは必ずしも一致していない。また、複数の図面の相互間においても、各要素の寸法の関係、各要素の比率等は必ずしも一致していない。
次に、図8および図9を用い、本開示の一実施形態に係る基板処理工程について説明する。図8は、本実施形態に係る基板処理工程を示すフロー図である。図9は、本実施形態に係る成膜工程を示すフロー図である。以下の説明において、基板処理装置10のリアクタ200の構成各部の動作は、コントローラ300により制御される。
上述の実施形態によれば、以下に示す1つまたは複数の効果が得られる。
(b)パーティクルの発生を抑制することが可能となる。
(c)基板にパーティクルが付着しまうのを抑制することが可能となる。
(d)パージ領域内へ処理ガスが入り込むのを抑制することができる。
以下に、本開示の好ましい態様について付記する。
(付記1)
基板を処理する複数の処理領域が設けられた処理室と、
前記処理室内に載置された前記基板を、前記基板外のある点を中心として回転させることにより前記複数の処理領域を順次通過させる回転テーブルと、
前記回転テーブルを回転させる回転機構と、を有し、
前記複数の処理領域は、前記基板に対して処理ガスを供給する第1の領域と、前記基板に対して不活性ガスを供給する第2の領域と、を有し、
前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう前記第2の領域に対応する前記回転テーブルの下側空間が構成される
基板処理装置。
(付記2)
付記1記載の基板処理装置であって、
前記第2の領域に対応する前記回転テーブルの下側空間に、不活性ガスを供給する不活性ガス供給部を有する。
(付記3)
付記2記載の基板処理装置であって、
前記不活性ガス供給部は、前記回転テーブルの回転方向とは逆方向に不活性ガスを供給するよう構成される。
(付記4)
付記2又は3に記載の基板処理装置であって、
前記不活性ガス供給部は、前記回転テーブルの回転方向とは逆方向に開口する不活性ガス供給孔を有する。
(付記5)
付記2から4のいずれか記載の基板処理装置であって、
前記不活性ガス供給部は、前記回転テーブル裏面の外周側に供給する不活性ガスの流量と前記回転テーブル裏面の中心側に供給する不活性ガスの流量とを異ならせるよう構成される。
(付記6)
付記2から5のいずれか記載の基板処理装置であって、
前記不活性ガス供給部は、前記回転テーブル裏面の外周側に供給する不活性ガスの流量を前記回転テーブル裏面の中心側に供給する不活性ガスの流量よりも多くなるよう構成される。
(付記7)
付記6記載の基板処理装置であって、
前記不活性ガス供給部のガス供給孔は、前記回転テーブルの裏面の外周側に対向するガス供給孔の孔径が、前記回転テーブルの裏面の回転中心側に対向するガス供給孔の孔径よりも大きく構成される。
(付記8)
付記1から7のいずれか記載の基板処理装置であって、
前記第2の領域の処理容器の内壁側であって、前記回転テーブルの斜め上方に前記処理容器の中心側に向かって突出する突出部を有する。
(付記9)
付記8記載の基板処理装置であって、
前記突出部は、前記第2の領域に不活性ガスを供給する不活性ガス供給部の外周面と対向するように構成される。
(付記10)
付記1から9のいずれか記載の基板処理装置であって、
前記第2の領域に対応する前記回転テーブル裏面と処理容器の底面との間の距離は、前記第1の領域に対応する前記回転テーブル裏面と前記処理容器の底面との間の距離よりも短く構成される。
(付記11)
基板が載置される載置部を複数有し、前記基板外のある点を中心として回転される回転テーブルを備え、処理ガスを供給する第1の領域と、不活性ガスを供給する第2の領域と、前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう構成された前記第2の領域に対応する前記回転テーブルの下側空間と、を備える処理室内で、
前記基板に対して、前記処理ガスを供給する工程と、
前記基板に対して、前記不活性ガスを供給する工程と、
を有する半導体装置の製造方法。
(付記12)
基板が載置される載置部を複数有し、前記基板外のある点を中心として回転される回転テーブルを備え、処理ガスを供給する第1の領域と、不活性ガスを供給する第2の領域と、前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう構成された前記第2の領域に対応する前記回転テーブルの下側空間と、を備える処理室内で、
前記基板に対して、前記処理ガスを供給させる手順と、
前記基板に対して、前記不活性ガスを供給させる手順と、
をコンピュータにより基板処理装置に実行させるプログラム。
200 リアクタ
201 処理室
203 処理容器
206a 第1処理領域、
206b 第2処理領域、
207a 第1パージ領域
207b 第2パージ領域
217 回転テーブル
217b 凹部(載置部)
300 コントローラ(制御部)
500a、500b 不活性ガス供給機構(不活性ガス供給部)
Claims (12)
- 基板に処理ガスを供給する第1の領域と、前記基板に不活性ガスを供給する第2の領域と、が設けられた処理室と、
前記処理室内に載置された前記基板を、前記基板外のある点を中心として回転させることにより前記第1の領域と前記第2の領域を順次通過させる回転テーブルと、
前記回転テーブルを回転させる回転機構と、
前記第2の領域に対応する前記回転テーブルの下側に設けられる不活性ガスを供給する不活性ガス供給部と、を有し、
前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう前記第2の領域に対応する前記回転テーブルの下側空間が構成される
基板処理装置。 - 前記不活性ガス供給部は、前記回転テーブルの回転方向とは逆方向に不活性ガスを供給するよう構成される請求項1記載の基板処理装置。
- 前記不活性ガス供給部は、前記回転テーブルの回転方向とは逆方向に開口する不活性ガス供給孔を有する請求項1又は2に記載の基板処理装置。
- 前記不活性ガス供給部は、前記回転テーブル裏面の外周側に供給する不活性ガスの流量と前記回転テーブル裏面の中心側に供給する不活性ガスの流量とを異ならせるよう構成される請求項1から3のいずれか一項に記載の基板処理装置。
- 前記不活性ガス供給部は、前記回転テーブル裏面の外周側に供給する不活性ガスの流量を前記回転テーブル裏面の中心側に供給する不活性ガスの流量よりも多くなるよう構成される請求項1から4のいずれか一項に記載の基板処理装置。
- 前記不活性ガス供給部のガス供給孔は、前記回転テーブルの裏面の外周側に対向するガス供給孔の孔径が、前記回転テーブルの裏面の回転中心側に対向するガス供給孔の孔径よりも大きく構成される請求項5記載の基板処理装置。
- 前記第2の領域の処理容器の内壁側であって、前記回転テーブルの斜め上方に前記処理容器の中心側に向かって突出する突出部を有する請求項1から6のいずれか一項に記載の基板処理装置。
- 前記突出部は、前記第2の領域に不活性ガスを供給する不活性ガス供給部の外周面と対向するように構成される請求項7記載の基板処理装置。
- 前記第2の領域に対応する前記回転テーブル裏面と処理容器の底面との間の距離は、前記第1の領域に対応する前記回転テーブル裏面と前記処理容器の底面との間の距離よりも短く構成される請求項1から8のいずれか一項に記載の基板処理装置。
- 基板が載置される載置部を複数有し、前記基板外のある点を中心として回転される回転テーブルを備え、処理ガスを供給する第1の領域と、不活性ガスを供給する第2の領域と、前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう構成された前記第2の領域に対応する前記回転テーブルの下側空間と、前記第2の領域に対応する前記回転テーブルの下側に設けられる不活性ガスを供給する不活性ガス供給部と、を備える処理室内で、
前記基板に対して、前記処理ガスを供給する工程と、
前記基板に対して、前記不活性ガスを供給する工程と、
を有する半導体装置の製造方法。 - 基板が載置される載置部を複数有し、前記基板外のある点を中心として回転される回転テーブルを備え、処理ガスを供給する第1の領域と、不活性ガスを供給する第2の領域と、前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう構成された前記第2の領域に対応する前記回転テーブルの下側空間と、前記第2の領域に対応する前記回転テーブルの下側に設けられる不活性ガスを供給する不活性ガス供給部と、を備える処理室内で、
前記基板に対して、前記処理ガスを供給させる手順と、
前記基板に対して、前記不活性ガスを供給させる手順と、
をコンピュータにより基板処理装置に実行させるプログラム。 - 基板が載置される載置部を複数有し、前記基板外のある点を中心として回転される回転テーブルを備え、処理ガスを供給する第1の領域と、不活性ガスを供給する第2の領域と、前記第2の領域に対応する前記回転テーブルの下側空間の圧力が、前記第1の領域に対応する前記回転テーブルの下側空間の圧力よりも高くなるよう構成された前記第2の領域に対応する前記回転テーブルの下側空間と、前記第2の領域に対応する前記回転テーブルの下側に設けられる不活性ガスを供給する不活性ガス供給部と、を備える処理室内で、
前記基板に対して、前記処理ガスを供給させる工程と、
前記基板に対して、前記不活性ガスを供給させる工程と、
を有する基板処理方法。
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