JP7177069B2 - 基板をプロセスチャンバ内で回転及び並進するためのシステム及び方法 - Google Patents
基板をプロセスチャンバ内で回転及び並進するためのシステム及び方法 Download PDFInfo
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Description
本出願は、2017年1月27日に出願され、「基板をプロセスチャンバ内で回転及び並進するためのシステム及び方法」という名称の米国仮出願番号第62/451,499号の優先権を主張し、その全体は、本願明細書に参照によって組み込まれる。
Claims (20)
- 大気圧より低い圧力で維持可能な内部体積を有するチャンバと、
前記チャンバに結合されるピボット要素と、
前記内部体積内に配置される流体ノズルと、
コントローラと、
を備える装置であって、
前記ピボット要素は、
前記内部体積内に配置されるピボット可能なスイングアームであって、前記スイングアームの一端のピボット点を有し、前記ピボット点の周りの弧状運動でピボットするピボット可能なスイングアームと、
前記ピボット可能なスイングアームに結合されるロッキング要素であって、前記ロッキング要素は、前記スイングアームを、処理中に前記弧状運動の範囲をとおって前記ピボット点の周りで往復してピボットさせることができ、前記弧状運動は角速度を有する、ロッキング要素と、
前記スイングアームの遠位端に結合される回転可能な支持要素と、を有し、
前記回転可能な支持要素は、
処理中にマイクロ電子基板を前記回転可能な支持要素に固定するための前記マイクロ電子基板のための支持面と、
前記支持面に結合される基板回転要素であって、前記基板回転要素は、処理中に前記マイクロ電子基板の中心点の周りで前記マイクロ電子基板が回転するように、前記支持面を回転させることができ、前記マイクロ電子基板の前記回転は角速度を有し、前記ピボット点と前記中心点とは互いにオフセットしている、基板回転要素と、を有し、
前記流体ノズルは、前記スイングアームが前記弧状運動の範囲をとおって移動するときに、前記流体ノズルと前記マイクロ電子基板の前記中心点との間の相対的位置が変化するように配置されており、
前記コントローラは、
前記スイングアームの前記弧状運動及び前記マイクロ電子基板の前記回転を同時に発生させるプログラム命令と、
前記スイングアームの前記弧状運動の前記角速度と前記マイクロ電子基板の前記回転の前記角速度とのうちの少なくとも一方を変化させ、したがって、前記流体ノズルが前記マイクロ電子基板の前記中心点から離れて配置されるにつれて、前記角速度のうちの少なくとも前記一方が減少するプログラム命令と、を含む、
装置。 - 前記ロッキング要素は、145度未満の回転角度で前記ピボット点の周りで往復してピボットするように構成される、
請求項1に記載の装置。 - 前記流体ノズルは、流体源及び低温冷却システムに結合される、
請求項1に記載の装置。 - 前記支持面は、前記マイクロ電子基板を前記支持面に固定するための基板クランピング機構を有する、
請求項1に記載の装置。 - 前記基板回転要素は、前記中心点の周りで前記支持面を回転させるためのステッピングモータを有する、
請求項1に記載の装置。 - 前記基板回転要素は、前記中心点の周りで前記支持面を回転させる磁気浮揚システムを有する、
請求項1に記載の装置。 - 前記支持要素は、前記支持面に近接して配置される加熱要素を有する、
請求項1に記載の装置。 - 前記流体ノズルは、低温冷却要素に結合するように構成される、又は、前記低温冷却要素に結合される、
請求項1に記載の装置。 - 絶縁されたガスライン及び流体冷却ユニットをさらに備え、
前記流体ノズルは、前記流体冷却ユニットに結合される前記絶縁されたガスラインに結合される流入口を有する、
請求項8に記載の装置。 - 真空ポンプに結合可能な内部体積を有し、マイクロ電子基板の処理中に、前記マイクロ電子基板がその中に配置されるチャンバであって、前記マイクロ電子基板は中心点を有する、チャンバと、
前記内部体積内に配置されるピボット可能なスイングアームであって、前記スイングアームの一端に位置するピボット点の周りで、第1の位置と第2の位置との間で往復してピボットするように構成されており、したがって、前記ピボット可能なスイングアームは、前記処理中に前記第1及び第2の位置の間を移動する際に、弧状運動の範囲でピボットするスイングアームと、
前記スイングアームに結合される基板チャックであって、前記基板チャックは、前記マイクロ電子基板の中心点が前記スイングアームの前記ピボット点から水平方向にオフセットするように、かつ、前記マイクロ電子基板が前記中心点周りに回転するように、前記マイクロ電子基板を支持する、回転可能な基板チャックと、
前記内部体積内に配置され、処理中に前記内部体積内に処理流体を分配する流体ノズルであって、前記スイングアームが前記弧状運動の範囲をとおって移動するにつれて、前記流体ノズルと前記マイクロ電子基板の前記中心点との間の相対的位置が変化するように配置されている、流体ノズルと、を備える装置。 - 前記装置は、スイングアームピボット要素をさらに有し、前記スイングアームピボット要素は、前記スイングアームを前記弧状運動の範囲の前記第1及び第2の位置の間で動くように前記ピボット点周りにピボットさせる、
請求項10に記載の装置。 - 前記スイングアームピボット要素は、前記内部体積の外部に配置されており、真空気密シールまたはパススルー要素を介して前記スイングアームに結合されており、
前記真空気密シールは、磁性流体シール又は回転スライドシールを有する、
請求項11に記載の装置。 - 前記基板チャックに結合されて前記基板チャックを回転させる回転機構をさらに備え、
前記回転機構は、前記内部体積内に配置される、
請求項10に記載の装置。 - 前記スイングアームは、前記ピボット点の周りで最高145度で回転するように構成される、
請求項10に記載の装置。 - マイクロ電子基板を処理チャンバ内で受け取るためのスイングアームを位置決めするステップと、
マイクロ電子基板を前記スイングアームの一端に結合された回転要素上に配置するステップと、
前記処理チャンバ内に配置されるノズルの下に前記マイクロ電子基板を位置決めするステップと、
前記マイクロ電子基板を、低温冷却流体を含むプロセス処理ガスに露出するステップと、
前記マイクロ電子基板を前記マイクロ電子基板の中心点の周りで回転させるステップと、
前記スイングアームの他端に結合されたピボットロッドをロッキング要素によって回転させることによって前記スイングアームをピボット点の周りで往復してピボット回転させるステップであって、前記ロッキング要素は前記処理チャンバ外に配置されている、ステップと、
を含む方法。 - 前記ピボット回転させるステップは、前記マイクロ電子基板の中心点に対する前記ノズルの相対的な位置に少なくとも部分的に基づいて変化する角速度で、前記スイングアームを回転させるステップを含む、
請求項15に記載の方法。 - 前記ピボット回転させるステップは、1秒につき5と50弧度との間の角速度で前記スイングアームを回転させるステップを含む、
請求項15に記載の方法。 - 前記回転させるステップは、前記マイクロ電子基板の中心点に対する前記ノズルの相対的な位置に少なくとも部分的に基づいて変化する回転速度で、前記マイクロ電子基板を回転させるステップを含む、
請求項15に記載の方法。 - 前記回転させるステップは、10RPMと300RPMとの間の回転速度を有する、
請求項15に記載の方法。 - 前記ピボット回転させるステップは、前記スイングアームを第1の位置と第2の位置との間で回転させるステップを含み、前記第1の位置及び前記第2の位置は、前記ピボット点の周りの弧線に沿って145度未満で離れている、
請求項15に記載の方法。
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US11458512B2 (en) | 2022-10-04 |
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