JP6584567B1 - リソグラフィ装置、パターン形成方法及び物品の製造方法 - Google Patents
リソグラフィ装置、パターン形成方法及び物品の製造方法 Download PDFInfo
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- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L2223/544—Marks applied to semiconductor devices or parts
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Abstract
Description
本実施形態では、基板にパターンを形成するリソグラフィ装置の一例として、フラットパネルディスプレイ(FPD)製造用の露光装置を説明する。露光装置は、マスク(原版、レチクル)を照明し、マスクのパターンを基板(ウエハ、ガラス基板等)に露光する装置である。露光装置は、例えば、投影光学系を用いてマスクのパターンを、感光剤(レジスト)が塗布された基板に投影して、感光剤に潜像パターンを形成する。
次に、図6に基づいて第2実施形態のアライメントマークMの形成について説明する。図6は、第2実施形態のマーク形成手段190と基板22を示す。第1実施形態と同様の構成、方法については説明を省略する。本実施形態のマーク形成手段190は、第1実施形態と同じ場所に配置される。
物品の製造方法について説明する。物品は半導体デバイス、表示デバイス、カラーフィルタ、光学部品、MEMS等である。例えば、半導体デバイスは、基板に回路パターンを作る前工程と、前工程で作られた回路チップを製品として完成させる後工程を経ることにより製造される。前工程は、前述の露光装置を使用して感光剤が塗布された基板を露光する工程と、感光剤を現像する工程を含む。現像された感光剤のパターンをマスクとしてエッチング工程やイオン注入工程等が行われ、ウエハ上に回路パターンが形成される。これらの露光、現像、エッチング等の工程を繰り返して、基板上に複数の層からなる回路パターンが形成される。後工程で、回路パターンが形成された基板に対してダイシングを行い、チップのマウンティング、ボンディング、検査工程を行う。表示デバイスは、透明電極を形成する工程を経ることにより製造される。透明電極を形成する工程は、透明導電膜が蒸着されたガラス基板に感光剤を塗布する工程と、前述の露光装置を使用して感光剤が塗布されたガラス基板を露光する工程と、露光された感光剤を現像する工程を含む。本実施形態の製造方法によれば、従来よりも高品位の物品を製造することができる。
Claims (10)
- 基板上にパターンを形成するリソグラフィ装置であって、
基板上の第1材料と、露光光とは異なる波長の照射光に対して前記第1材料よりも光吸収率が低く、前記第1材料上に塗布された感光剤とに、前記照射光を照射して前記基板上に位置合せ用マークを形成する形成部と、
前記基板の位置合せを行い、前記感光剤に前記露光光を照明して前記基板上にパターンを転写する転写部と、
前記形成部を制御する制御部と、を有し、
前記形成部による前記照射光の波長、強度及び照射時間は、前記形成部が前記感光剤を介して前記第1材料を照射することによって前記第1材料を加熱して前記第1材料の熱により前記感光剤を変質させるように、前記第1材料と前記感光剤との情報に基づいて設定され、
設定された前記照射光の波長、強度及び照射時間で前記感光剤を介して前記第1材料を照射するように前記制御部が前記形成部を制御することにより、前記形成部が前記感光剤の変質した位置合せ用マークを形成する、ことを特徴とするリソグラフィ装置。 - 前記第1材料は金属膜を含むことを特徴とする請求項1に記載のリソグラフィ装置。
- 前記第1材料は、前記パターンを形成するための材料であることを特徴とする請求項1又は2に記載のリソグラフィ装置。
- 前記制御部は、前記感光剤の情報及び前記第1材料の情報を取得し、取得した情報に基づいて、前記形成部が照射する光の強度及び照射時間の少なくとも一方を制御することを特徴とする請求項1乃至3の何れか1項に記載のリソグラフィ装置。
- 前記形成部は、照射する光の強度及び照射時間の少なくとも一方を変えながら基板の前記第1材料及び前記感光剤を照射して前記感光剤に複数のマークを形成し、
前記制御部は、形成された前記複数のマークを計測した結果に基づいて、前記形成部が照射する光の強度及び照射時間の少なくとも一方を決定することを特徴とする請求項1乃至4の何れか1項に記載のリソグラフィ装置。 - 基板上にパターンを形成するパターン形成方法であって、
基板上の第1材料と、露光光とは異なる波長の照射光に対して前記第1材料よりも光吸収率が低く、前記第1材料上に塗布された感光剤とに、前記照射光を照射して前記基板上に位置合せ用マークを形成する形成工程と、
前記基板の位置合せを行い、前記感光剤に前記露光光を照明して前記基板上にパターンを転写する工程と、を有し、
前記照射光の波長、強度及び照射時間は、前記感光剤を介して前記第1材料に照射したときに前記第1材料を加熱して前記第1材料の熱により前記感光剤を変質させるように、前記第1材料と前記感光剤との情報に基づいて設定され、
前記形成工程において、設定された前記照射光の波長、強度及び照射時間で前記感光剤を介して前記第1材料に照射することにより、前記感光剤の変質した位置合せ用マークを形成する、ことを特徴とするパターン形成方法。 - 前記第1材料は金属膜を含むことを特徴とする請求項6に記載のパターン形成方法。
- 前記第1材料は、前記パターンを形成するための材料であることを特徴とする請求項6又は7に記載のパターン形成方法。
- 照射する光の強度及び照射時間の少なくとも一方を変えながら基板の前記第1材料及び前記感光剤を照射して前記感光剤に複数のマークを形成し、
形成された前記複数のマークを計測した結果に基づいて、前記照射光の強度及び照射時間の少なくとも一方を設定することを特徴とする請求項6乃至8の何れか1項に記載のパターン形成方法。 - 請求項6乃至9の何れか1項に記載のパターン形成方法を用いて基板上にパターンを形成する工程と、
パターンが形成された基板を加工することによって物品を製造する工程と、を有することを特徴とする物品の製造方法。
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