JP2020035920A - 基板処理装置、基板処理方法および記憶媒体 - Google Patents
基板処理装置、基板処理方法および記憶媒体 Download PDFInfo
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Abstract
【解決手段】本開示の一態様による基板処理装置は、ノズルと、待機部と、供給路と、排出路と、循環路と、雰囲気遮断機構とを備える。ノズルは、基板に処理液を吐出する。待機部は、開口部を有し、ノズルを開口部に挿通させて待機させる。供給路は、ノズルに処理液を供給する。排出路は、待機部から処理液を排出する。循環路は、ノズルと待機部と供給路と排出路とがつながって形成される。雰囲気遮断機構は、循環路に設けられ、循環路の内部と基板の周囲との間を遮断する。
【選択図】図3
Description
最初に、図1を参照しながら、実施形態に係る基板処理システム1の概略構成について説明する。図1は、実施形態に係る基板処理システム1の概略構成を示す図である。なお、基板処理システム1は、基板処理装置の一例である。以下では、位置関係を明確にするために、互いに直交するX軸、Y軸およびZ軸を規定し、Z軸正方向を鉛直上向き方向とする。
次に、処理ユニット16の構成について、図2を参照しながら説明する。図2は、処理ユニット16の具体的な構成例を示す模式図である。図2に示すように、処理ユニット16は、チャンバ20と、基板処理部30と、処理液吐出部40と、回収カップ50と、待機部60とを備える。
次に、基板処理システム1が備える処理液の処理液供給部100、供給路110および排出路120の構成について、図3を参照しながら説明する。図3は、実施形態に係る処理液供給部100、供給路110および排出路120の構成を示す図である。なお、以下に示す処理液供給部100、供給路110および排出路120の各部は、制御部18によって制御可能である。
つづいて、基板処理システム1における処理液の流れについて、図4および図5を参照しながら説明する。図4および図5は、実施形態に係る処理液の流れについて説明するための図(1)、(2)である。
つづいて、循環路X内の雰囲気とウェハW周囲の雰囲気とが混ざることを抑制する雰囲気遮断機構の各種変形例について、図6〜図16を参照しながら説明する。図6は、実施形態の変形例1に係る雰囲気遮断機構の構成を示す図であり、図7は、図6におけるA−A線断面図である。
つづいて、基板処理システム1における排出路120の詳細な構成について、図17を参照しながら説明する。図17は、実施形態に係る排出路120の詳細な構成を示す図である。なお、以下においては、基板処理システム1内の処理ユニット16が水平方向に2つずつ並んで配置され、垂直方向に3段積み重なって構成される場合について説明する。
つづいて、制御バルブ140の挙動パターンの具体例について、図18を参照しながら説明する。図18は、実施形態に係る制御バルブ140の挙動パターンの具体例を示すタイミングチャートである。なお、かかる制御バルブ140は制御部18により制御される。
つづいて、排出路120の各種変形例について、図19〜図22を参照しながら説明する。図19は、実施形態の変形例7に係る排出路120A〜120Cの詳細な構成を示す図である。かかる変形例7では、処理ユニット16の各段に排出路120A〜120Cが設けられる点が実施形態と異なる。
1 基板処理システム(基板処理装置の一例)
16 処理ユニット
18 制御部
30 基板処理部
40 処理液吐出部
41 ノズル
60 待機部
63 開口部
64 ガス吸引部
65、66 ガス吐出部
68 水シール
69 Oリング
70 膨張シール
71、72 シャッター
80 遮断バルブ(雰囲気遮断機構の一例)
100 処理液供給部
102 タンク
110 供給路
110a 循環ライン
110b 分岐ライン
120、120A〜120C 排出路
120a 第1排出路
120b 第2排出路
120c 第3排出路
121 分岐路
130、130A〜130C 液面センサ
140、140A〜140C 制御バルブ
150、150A〜150C 背圧弁
X 循環路
Claims (13)
- 基板に処理液を吐出するノズルと、
開口部を有し、前記ノズルを前記開口部に挿通させて待機させる待機部と、
前記ノズルに前記処理液を供給する供給路と、
前記待機部から前記処理液を排出する排出路と、
前記ノズルと前記待機部と前記供給路と前記排出路とがつながって形成される循環路と、
前記循環路に設けられ、前記循環路の内部と前記基板の周囲との間を遮断する雰囲気遮断機構と、
を備える基板処理装置。 - 前記排出路は、前記待機部から前記排出路への前記処理液の流入を遮断する遮断バルブを有し、
前記雰囲気遮断機構は、前記遮断バルブである請求項1に記載の基板処理装置。 - 前記雰囲気遮断機構は、前記開口部を開閉するシャッターである請求項1または2に記載の基板処理装置。
- 前記雰囲気遮断機構は、前記開口部または前記開口部に隣接して接続されるガス吸引部およびガス吐出部で構成される請求項1〜3のいずれか一つに記載の基板処理装置。
- 前記雰囲気遮断機構は、前記ノズルと前記待機部との間をシールするシール機構である請求項1〜4のいずれか一つに記載の基板処理装置。
- 前記待機部の下方に設けられ、前記供給路と前記排出路とに接続され、前記処理液を貯留するタンクをさらに備える請求項1〜5のいずれか一つに記載の基板処理装置。
- 前記排出路は、前記排出路内の前記処理液の液面高さを検知する液面センサと、前記排出路から前記タンクへの前記処理液の流入を制御する制御バルブとを有する請求項6に記載の基板処理装置。
- 前記液面センサは、もっとも低い前記待機部の下方でかつ当該待機部に近接して配置され、
前記制御バルブは、前記タンクに近接して配置される請求項7に記載の基板処理装置。 - 前記排出路は、背圧弁を有する請求項6に記載の基板処理装置。
- 請求項1〜9のいずれか一つに記載の基板処理装置において、
前記ノズルが前記待機部に待機する状態では、前記ノズルから前記処理液を吐出して前記処理液を前記循環路で循環させ、
前記ノズルが前記基板に前記処理液を吐出する状態では、前記雰囲気遮断機構で前記循環路の内部と前記基板の周囲との間を遮断する
基板処理方法。 - 請求項7または8に記載の基板処理装置において、
前記排出路内の前記処理液の液面高さが所定の第1液面高さ以上になった場合は、前記制御バルブを開け、
前記排出路内の前記処理液の液面高さが前記第1液面高さより低い所定の第2液面高さ以下になった場合は、前記制御バルブを絞る
基板処理方法。 - 前記第1液面高さは、前記待機部より低い位置である請求項11に記載の基板処理方法。
- 請求項10〜12のいずれか一つに記載の基板処理方法をコンピュータに実行させる、プログラムを記憶した記憶媒体。
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JP7487006B2 (ja) * | 2020-05-19 | 2024-05-20 | 東京エレクトロン株式会社 | 基板液処理装置及び基板液処理方法 |
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