JP2023079033A - 成膜装置、膜厚測定方法及び電子デバイスの製造方法 - Google Patents
成膜装置、膜厚測定方法及び電子デバイスの製造方法 Download PDFInfo
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Abstract
Description
基板に対して成膜する成膜装置であって、
基板に形成された膜の厚さを測定するための測定ヘッドと、
前記測定ヘッドを移動させる移動手段と、を備える、
ことを特徴とする成膜装置が提供される。
図1は、一実施形態に係る成膜装置1の構成を示す模式図である。成膜装置1は、基板100に対して成膜する装置である。成膜装置1は、例えば、スマートフォン用の有機EL表示装置の表示パネルの製造に用いられるもので、基板100が成膜ブロック301に順次搬送され、基板100に有機ELの成膜が行われる。
図2は、受渡室308の構成要素を説明するための模式図であり、基板100の膜厚測定に関係する要素を中心に示している。なお、図2では、後の説明に必要な構成要素が強調して示されているため、構成要素の配置や大きさ等が他の図面と一致しない場合がある。受渡室308は、チャンバ10と、静電チャック11と、チャック移動部12と、吸着補助部13と、位置決め部14と、基板支持部15と、測定部29と、ガイド部16と、規制部17と、を含む。
静電チャック11は、測定部29による測定対象の基板100を静電気力により吸着する。静電チャック11は、枠体111と、電極配置部112とを含む。枠体111は、静電チャック11の外形を形成する枠状の部材である。例えば、枠体111は、静電チャック11による吸着対象の基板100と同等以上のサイズの枠を形成する。枠体111の側面には、後述する移動部13及び位置決め部14の構成部品が設けられている。電極配置部112には、静電気力を発生させる電極が配置される。すなわち、電極配置部112は、基板100に対する吸着力が生じる吸着領域を形成している。本実施形態では、電極配置部112は、静電チャック11が基板100の一部を吸着するように設けられている。ただし、静電チャック11が基板100の前面を吸着するように電極配置部112が設けられてもよい。
位置決め部14は、静電チャック11の位置決めを行うためのものである。詳細には、位置決め部14は、静電チャック11を、測定部29による測定が行われる際の位置に位置決めする。位置決め部14は、突き当て部141と受け部142とを含む。
基板支持部15は、基板100を支持する。詳細には、基板支持部15は、測定部29による膜厚測定が行われる基板100を下方から支持する。基板支持部15は、チャンバ10内において、上下方向で静電チャック11と測定部29との間に位置している。本実施形態では、基板支持部15は、枠体151と、板バネ152とを含む。
測定部29は、基板100に形成された膜の厚さを測定する。測定部29は、基板支持部15の下方に設けられる。測定部29は、光源2901、真空フランジ2902、測定ヘッド2903測定ヘッド2903、分光器2904、及びPC2905を含む。光源2901、真空フランジ2902、測定ヘッド2903、及び分光器2904間は、光ファイバ2911で接続される。
図12~図13は、受渡室308における基板100の搬送及び膜厚測定の動作説明図である。
上記実施形態では、測定ヘッド2903の移動に追従して光ファイバ2911も移動していたが、光ファイバが移動しない構成も採用可能である。図16は、一実施形態に係る受渡室9308の構成例を示す模式図である。以下、上記実施形態と同様の要素については同様の符号を付して説明を省略する。
次に、電子デバイスの製造方法の一例を説明する。以下、電子デバイスの例として有機EL表示装置の構成及び製造方法を例示する。この例の場合、図1に例示した成膜ブロック301が、製造ライン上に、例えば、3か所、設けられる。
次に、電子デバイスの製造方法の一例を説明する。以下、電子デバイスの例として有機EL表示装置の構成及び製造方法を例示する。この例の場合、図1に例示した成膜ブロック301が、製造ライン上に、例えば、3か所、設けられる。
Claims (10)
- 基板に対して成膜する成膜装置であって、
基板に形成された膜の厚さを測定するための測定ヘッドと、
前記測定ヘッドを移動させる移動手段と、を備える、
ことを特徴とする成膜装置。 - 請求項1に記載の成膜装置であって、
前記測定ヘッドが配置されるチャンバと、
前記チャンバへ基板を搬入する搬送手段と、をさらに備え、
前記移動手段は、前記搬送手段により前記チャンバの内部へ基板が搬送される場合に、基板及び前記搬送手段との接触を回避する回避位置へと前記測定ヘッドを移動させ、
前記移動手段は、測定の対象となる基板が搬送された後に、測定位置へと前記測定ヘッドを移動させる、
ことを特徴とする成膜装置。 - 請求項1に記載の成膜装置であって、
前記測定ヘッドに接続する光ファイバと、
前記光ファイバをガイドするガイド手段と、をさらに備え、
前記ガイド手段は、
前記移動手段による前記測定ヘッドの移動に追従するアーム部と、
前記アーム部に設けられ、前記アーム部に対する前記光ファイバの相対的な移動を規制する規制部と、を含む、
ことを特徴とする成膜装置。 - 請求項3に記載の成膜装置であって、
前記光ファイバは、前記測定ヘッドから切り離し可能に設けられ、
前記移動手段は、前記光ファイバが切り離された状態の前記測定ヘッドを移動させる、
ことを特徴とする成膜装置。 - 請求項1に記載の成膜装置であって、
前記測定ヘッドに選択的に接続する複数の光ファイバをさらに備え、
前記移動手段は、前記測定ヘッドを、第1の測定位置及び第2の測定位置へと移動可能であり、
前記複数の光ファイバは、
前記第1の測定位置に位置する前記測定ヘッドに接続する第1のファイバと、
前記第2の測定位置に位置する前記測定ヘッドに接続する第2のファイバと、を含む、
ことを特徴とする成膜装置。 - 請求項1から5までのいずれか1項に記載の成膜装置であって、
前記測定ヘッドは、投射光を投光し、反射光を受光する投受光部をさらに備える、
ことを特徴とする成膜装置。 - 請求項1から6までのいずれか1項に記載の成膜装置であって、
前記測定ヘッドを用いた測定が行われる際に静電気力により基板を吸着する静電チャックをさらに備える、
ことを特徴とする成膜装置。 - 請求項1に記載の成膜装置であって、
基板に対して成膜する成膜室と、
基板に形成された膜を検査する検査室と、をさらに備え、
前記移動手段は、前記検査室に設けられた前記測定ヘッドを移動させる、
ことを特徴とする成膜装置。 - 基板に形成された膜の厚さを測定するための測定ヘッドを備えた成膜装置の膜厚測定方法であって、
前記測定ヘッドを用いて基板に形成された膜の厚さを測定する測定工程と、
前記測定ヘッドを移動させる移動工程と、を含む、
ことを特徴とする膜厚測定方法。 - 基板に成膜を行う成膜工程と、
請求項9に記載の膜厚測定方法により、前記成膜工程において成膜された基板の膜厚を測定する膜厚測定工程と、を含む、
ことを特徴とする電子デバイスの製造方法。
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