JP7098677B2 - 基板処理装置、半導体装置の製造方法及びプログラム - Google Patents
基板処理装置、半導体装置の製造方法及びプログラム Download PDFInfo
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Description
基板を処理する処理室と、
前記処理室内に設けられ、前記基板が載置される載置部を複数有する基板支持部と、を備え、
前記処理室は、前記基板に処理ガスを供給する処理領域と、前記基板をパージするパージ領域と、を有し、
前記パージ領域は、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、
を有する技術を提供する。
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。
次に、図7および図8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7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8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)パージ領域において、基板Sを、圧力差のある(真空度の異なる)複数の領域を通過させることにより、高いアスペクト比の溝内の副生成物を除去し、パーティクルの発生を抑制することが可能となる。
(c)パージ領域において、圧力の低い(高真空の)領域における移動距離を長くすることにより、基板S上の副生成物をより効果的に除去することができる。
(d)パージ領域において、圧力の低い(高真空の)領域に連通される排気路に接続される排気配管の内径を、他の領域に連通される排気路に接続される排気配管の内径よりも大きくすることにより、真空引きしやすくして、基板S上の副生成物を排出させやすくすることができる。
(e)パージ領域において、圧力の低い(高真空の)領域に連通される排気路に連通される排気配管に補助ポンプを設けることにより、真空ポンプのみ設けた場合と比較して、真空引きしやすくして、基板S上の副生成物を排出させやすくすることができる。
パージ領域207a,207bを構成する天井の形状等は、上述した実施形態に示す態様に限定されない。例えば、以下に示す実施形態のように変更することも可能である。以下では、主に、上述した実施形態と異なる箇所について記載する。以下の実施形態によっても、上述の実施形態に示す態様と同様の効果が得られる。
図9は、上述した図1に示すリアクタ200のB-B'線断面図の変形例である。本変形例では、パージ領域207a,207bにおける第2領域が異なる。ここでは、パージ領域207aを用いて説明する。
図10は、上述した図1に示すリアクタ200のB-B'線断面図の変形例である。本変形例では、パージ領域207a,207bが、それぞれ4つの領域に区画されている。ここでは、パージ領域207aを用いて説明する。
以下に、本開示の好ましい態様について付記する。
(付記1)
基板を処理する処理室と、
前記処理室内に設けられ、前記基板が載置される載置部を複数有する基板支持部と、を備え、
前記処理室は、前記基板に処理ガスを供給する処理領域と、前記基板をパージするパージ領域と、を有し、
前記パージ領域は、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、
を有する基板処理装置。
(付記2)
付記1記載の基板処理装置であって、
前記パージ領域には、前記基板支持部と対向して設けられた天井と、前記天井と連続して形成され、前記第1パージ領域と前記第2パージ領域とを仕切る仕切部と、が設けられ、
前記第1パージ領域の天井の高さは、前記第2パージ領域の天井の高さよりも低く、前記仕切部の下端位置以上の高さに構成される。
(付記3)
付記1又は付記2に記載の基板処理装置であって、
前記第1パージ領域に接続される排気配管の径は、前記第2パージ領域に接続される排気配管の径よりも大きく構成される。
(付記4)
付記2記載の基板処理装置であって、
前記処理室を構成する処理容器の天板の下面により前記天井が構成され、
前記第1パージ領域の天板の上面の高さは、前記第2パージ領域の天板の上面の高さよりも低く構成される。
(付記5)
付記1から付記4のいずれか記載の基板処理装置であって、
前記第2パージ領域における圧力は、前記処理領域における圧力よりも低く構成される。
(付記6)
付記1から付記5のいずれか記載の基板処理装置であって、
前記第1パージ領域における前記基板の移動距離は、前記第2パージ領域における前記基板の移動距離よりも長くなるよう構成される。
(付記7)
付記1から付記6のいずれか記載の基板処理装置であって、
前記パージ領域は、第3の圧力でパージする第3パージ領域をさらに有し、
前記第2パージ領域と前記第3パージ領域に、パージガスを供給するパージガス供給部と、
前記第3パージ領域における圧力が、前記処理領域における圧力よりも低く、前記第2パージ領域における圧力よりも高くなるように、前記第2パージ領域と前記第3パージ領域における排気量と、前記パージガス供給部によるパージガスの供給流量のいずれか又は両方を制御するよう構成される制御部と、
を有する。
(付記8)
基板が載置される載置部を複数有する基板支持部を備え、処理ガスを供給する処理領域と、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、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、前記第1の圧力でパージする工程と、
前記基板に対して、前記第1の圧力の少なくとも前または後に、前記第2の圧力でパージする工程と、を有する
半導体装置の製造方法。
(付記9)
基板が載置される載置部を複数有する基板支持部を備え、処理ガスを供給する処理領域と、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、を備える基板処理装置の処理室内で、
前記基板に対して、前記処理ガスを供給する手順と、
前記基板に対して、前記第1の圧力でパージする手順と、
前記基板に対して、前記第1の圧力の少なくとも前または後に、前記第2の圧力でパージする手順と、
をコンピュータにより前記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,207b パージ領域
217 回転テーブル(基板支持部)
217b 凹部(載置部)
300 コントローラ(制御部)
Claims (9)
- 基板を処理する処理室と、
前記処理室内に設けられ、前記基板が載置される載置部を複数有する基板支持部と、を備え、
前記処理室は、前記基板に処理ガスを供給する処理領域と、前記基板をパージするパージ領域と、を有し、
前記パージ領域は、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、前記基板支持部と対向し、前記第1パージ領域と前記第2パージ領域に連続して設けられる天井と、を有し、
前記第1パージ領域における前記天井の高さは、前記第2パージ領域における前記天井の高さよりも低く構成される
基板処理装置。 - 前記パージ領域には、前記天井と連続して形成され、前記第1パージ領域と前記第2パージ領域とを仕切る仕切部が設けられる請求項1に記載の基板処理装置。
- 前記第1パージ領域に接続される排気配管の径は、前記第2パージ領域に接続される排気配管の径よりも大きく構成される請求項1又は2に記載の基板処理装置。
- 前記処理室を構成する処理容器の天板の下面により前記天井が構成され、
前記第1パージ領域の天板の上面の高さは、前記第2パージ領域の天板の上面の高さよりも低く構成される請求項1又は2に記載の基板処理装置。 - 前記第2パージ領域における圧力は、前記処理領域における圧力よりも低く構成される請求項1から4のいずれか一項に記載の基板処理装置。
- 前記第1パージ領域における前記基板の移動距離は、前記第2パージ領域における前記基板の移動距離よりも長くなるよう構成される請求項1から5のいずれか一項に記載の基板処理装置。
- 前記パージ領域は、第3の圧力でパージする第3パージ領域をさらに有し、
前記第2パージ領域と前記第3パージ領域に、パージガスを供給するパージガス供給部と、
前記第3パージ領域における圧力が、前記処理領域における圧力よりも低く、前記第2パージ領域における圧力よりも高くなるように、前記第2パージ領域と前記第3パージ領域における排気量と、前記パージガス供給部によるパージガスの供給流量のいずれか又は両方を制御することが可能なよう構成される制御部と、
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。 - 基板が載置される載置部を複数有する基板支持部を備え、処理ガスを供給する処理領域と、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、前記基板支持部と対向し、前記第1パージ領域と前記第2パージ領域に連続して設けられる天井と、を備え、前記第1パージ領域における前記天井の高さは、前記第2パージ領域における前記天井の高さよりも低く構成される処理室内で、
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、前記第1の圧力でパージする工程と、
前記基板に対して、前記第1の圧力の少なくとも前または後に、前記第2の圧力でパージする工程と、
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する基板支持部を備え、処理ガスを供給する処理領域と、第1の圧力でパージする第1パージ領域と、前記第1の圧力よりも高い第2の圧力でパージする第2パージ領域と、前記基板支持部と対向し、前記第1パージ領域と前記第2パージ領域に連続して設けられる天井と、を備え、前記第1パージ領域における前記天井の高さは、前記第2パージ領域における前記天井の高さよりも低く構成される基板処理装置の処理室内で、
前記基板に対して、前記処理ガスを供給する手順と、
前記基板に対して、前記第1の圧力でパージする手順と、
前記基板に対して、前記第1の圧力の少なくとも前または後に、前記第2の圧力でパージする手順と、
をコンピュータにより前記基板処理装置に実行させるプログラム。
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| US11473196B2 (en) | 2022-10-18 |
| JP2022132676A (ja) | 2022-09-09 |
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| CN113451169B (zh) | 2024-02-06 |
| TW202137362A (zh) | 2021-10-01 |
| JP2021158143A (ja) | 2021-10-07 |
| KR102514775B1 (ko) | 2023-03-27 |
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