JP2020061443A - 塗布、現像装置及び塗布、現像方法。 - Google Patents
塗布、現像装置及び塗布、現像方法。 Download PDFInfo
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- G03F7/70—Microphotolithographic exposure; Apparatus therefor
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70991—Connection with other apparatus, e.g. multiple exposure stations, particular arrangement of exposure apparatus and pre-exposure and/or post-exposure apparatus; Shared apparatus, e.g. having shared radiation source, shared mask or workpiece stage, shared base-plate; Utilities, e.g. cable, pipe or wireless arrangements for data, power, fluids or vacuum
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Abstract
Description
上下に積層されると共に互いに区画される複数の基板搬送領域を備える処理ブロックと、
前記基板を格納する搬送容器と前記各基板搬送領域との間で当該基板を搬送するための搬送ブロックと、
前記複数の基板搬送領域に各々設けられる前記処理モジュールと、
前記複数の基板搬送領域に各々設けられ、前記搬送ブロックと前記処理モジュールとの間で前記基板を搬送する搬送機構と、
複数の前記処理モジュールのうちの少なくとも一の処理モジュールにおける前記基板の温度を調整するために当該一の処理モジュールへ搬送される前の当該基板の温度を調整し、前記搬送機構によって温度が調整された当該基板の搬出が行われる温度調整モジュールと、
複数の前記基板搬送領域のうちの少なくとも一の基板搬送領域の雰囲気温度を検出する温度センサと、
前記温度センサにより検出される前記雰囲気温度に基づいて、前記温度調整モジュールにおける前記基板の温度を変更する温度変更機構と、
備える。
以下、本開示の技術に関連する評価試験について説明する。この評価試験では互いに異なる構成の塗布、現像装置を用いてウエハWに処理を行っている。その装置の一つは、既述の塗布、現像装置1であり、温度センサ26の検出温度に基づいて温度調整モジュールSCPL1〜SCPL6の温度が制御される。また、他の装置として、温度センサ26が設けられず、単位ブロックEの雰囲気温度に基づいた温度調整モジュールSCPLの温度制御が行われないことを除いて、塗布、現像装置1と同様に構成された装置を用いており、当該装置を第1比較例の装置と記載する。さらに他の装置として、単位ブロックE1〜E6、上下搬送ブロックD2及びインターフェイスブロックD4が各々ダクトを介してガス供給機構に接続された装置を用いており、当該装置を第2比較例の装置と記載する。この第2比較例の装置も、第1比較例の装置と同様に温度センサ26が設けられず、単位ブロックEの雰囲気温度に基づいた温度調整モジュールSCPLの温度制御が行われない。この第2比較例の装置におけるガス供給機構は、クリーンルームの大気を取り込み、当該大気の温度、湿度を夫々所定の温度、所定の湿度になるように調整し、上記のダクトを介して各ブロックに供給できるように構成されている。
評価試験1では既述の各塗布、現像装置内で、温度調整モジュールSCPLから直接ウエハWが搬送される特定の処理モジュールにおいて、当該処理モジュールに搬入時の複数枚のウエハWの温度を測定した。そして、測定された複数枚のウエハWの温度について、最大値−最小値をばらつきとして算出した。また、この温度を測定したウエハWについて、レジストパターンが形成された後、当該レジストパターンのCDの最大値−最小値を、CDのばらつきとして算出した。
評価試験2−1として、クリーンルームの温度が一定の環境で、評価試験1で説明した第1比較例の塗布、現像装置を用いて、レジスト膜の形成、SiARCと呼ばれる反射防止膜の形成、ネガ現像によるレジストパターンの形成を複数のウエハWに夫々行った。そしてレジスト膜、反射防止膜について、各々複数のウエハW間における膜厚の平均値を算出した。また、レジストパターンのCDについて、複数のウエハW間における平均値を算出した。
D2 上下搬送ブロック
D3 インターフェイスブロック
E1〜E6 単位ブロック
F1〜F6 搬送機構
SCPL1〜SCPL6 温度調整モジュール
W ウエハ
1 塗布、現像装置
26 温度センサ
3 レジスト膜形成モジュール
50 制御部
55 チラー
Claims (13)
- 基板に処理を行う処理モジュールとして、前記基板にレジスト膜を形成するレジスト膜形成モジュール及び露光済みの前記レジスト膜を現像する現像モジュールを含む塗布、現像装置において、
上下に積層されると共に互いに区画される複数の基板搬送領域を備える処理ブロックと、
前記基板を格納する搬送容器と前記各基板搬送領域との間で当該基板を搬送するための搬送ブロックと、
前記複数の基板搬送領域に各々設けられる前記処理モジュールと、
前記複数の基板搬送領域に各々設けられ、前記搬送ブロックと前記処理モジュールとの間で前記基板を搬送する搬送機構と、
複数の前記処理モジュールのうちの少なくとも一の処理モジュールにおける前記基板の温度を調整するために当該一の処理モジュールへ搬送される前の当該基板の温度を調整し、前記搬送機構によって温度が調整された当該基板の搬出が行われる温度調整モジュールと、
複数の前記基板搬送領域のうちの少なくとも一の基板搬送領域の雰囲気温度を検出する温度センサと、
前記温度センサにより検出される前記雰囲気温度に基づいて、前記温度調整モジュールにおける前記基板の温度を変更する温度変更機構と、
備える塗布、現像装置。 - 前記複数の基板搬送領域は、第1の基板搬送領域及び第2の基板搬送領域を含み、
前記一の処理モジュールは、前記第1の基板搬送領域、第2の基板搬送領域の各々に設けられ、
前記温度調整モジュールは、前記第1の基板搬送領域に搬出される基板の温度を調整する第1の温度調整モジュール及び第2の基板搬送領域に搬出される基板の温度を調整する第2の温度調整モジュールを含む請求項1記載の塗布、現像装置。 - 前記第1の基板搬送領域の一の処理モジュール、前記第2の基板搬送領域の一の処理モジュールは互いに前記基板に同種の処理を行う請求項2記載の塗布、現像装置。
- 前記複数の基板搬送領域毎に、前記一の処理モジュール及び前記温度調整モジュールが設けられる請求項1ないし3のいずれか一つに記載の塗布、現像装置。
- 前記温度センサは、複数の前記基板搬送領域のうち少なくとも前記一の処理モジュールが設けられる基板搬送領域に設けられる請求項1ないし4のいずれか一つに記載の塗布、現像装置。
- 前記一の処理モジュールは、前記基板に薬液を供給して成膜する処理モジュールである請求項1ないし5のいずれか一つに記載の塗布、現像装置。
- 前記薬液はレジストであり、前記処理モジュールは前記基板にレジスト膜を形成する請求項6記載の塗布、現像装置。
- 前記搬送ブロックは、前記搬送容器が載置されると共に前記各基板搬送領域の前方側に設けられる前方ブロックと、前記各処理ブロックの後方側に設けられ、前記レジスト膜を露光する露光機に接続される後方ブロックと、を備え
前記温度調整モジュールは、前記前方ブロック及び前記後方ブロックのうちの少なくともいずれかにおいて、前記一の処理モジュールが設けられる前記基板搬送領域に対応する高さに設けられる請求項1ないし7のいずれか一つに記載の塗布、現像装置。 - 前記基板搬送領域は、前記前方ブロックから後方ブロックへ向かって前後方向に伸びる前記基板の搬送路を備え、
当該搬送路に対して左右方向から面するように前記一の処理モジュールを含む前記複数の処理モジュールが設けられる請求項1ないし8のいずれか一つに記載の塗布、現像装置。 - 前記温度センサは、前記搬送路に設けられる請求項9記載の塗布、現像装置。
- 先発の基板、後続の基板を順に前記一の処理モジュールに搬送するにあたり、
後続の基板を支持した搬送機構が前記一の処理モジュールに対して当該基板を受け渡す位置に到達するタイミングは、前記一の処理モジュールにおいて先発の基板の搬出が可能になるタイミングと同時か当該タイミングよりも後となるように前記搬送機構の動作が制御される請求項1ないし10記載の塗布、現像装置。 - 先発の基板、後続の基板を順に前記一の処理モジュールに搬送するにあたり、
前記一の処理モジュールにおいて前記先発の基板が搬出可能となるタイミングよりも前に、前記搬送機構が前記温度調整モジュールから後続の基板を受け取り、当該一の処理モジュールへ向けて搬出するように当該搬送機構の動作が制御される請求項11記載の塗布、現像装置。 - 基板を格納する搬送容器から当該基板を搬出する工程と、
搬送機構により基板搬送領域に設けられる複数の処理モジュールに各々基板を搬送して、レジスト膜の形成及び露光済みの前記レジスト膜の現像を含む処理を行う工程と、
前記複数の処理モジュールのうちの少なくとも一の処理モジュールにおける前記基板の温度を調整するために、当該一の処理モジュールへ搬送される前の前記基板の温度を温度調整モジュールにより調整する工程と、
前記温度調整モジュールにおいて温度が調整された前記基板を、前記搬送機構により前記一の処理モジュールに搬送する工程と、
温度センサにより前記基板搬送領域の雰囲気温度を検出する工程と、
前記温度センサにより検出された前記雰囲気温度に基づいて、前記温度調整モジュールによって調整される前記基板の温度を変更する工程と、
備える塗布、現像方法。
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