JP2008147645A - 計測法とエッチング処理を統合する方法及び装置 - Google Patents
計測法とエッチング処理を統合する方法及び装置 Download PDFInfo
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- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 5
- YXTPWUNVHCYOSP-UHFFFAOYSA-N bis($l^{2}-silanylidene)molybdenum Chemical compound [Si]=[Mo]=[Si] YXTPWUNVHCYOSP-UHFFFAOYSA-N 0.000 claims description 4
- 229910021344 molybdenum silicide Inorganic materials 0.000 claims description 4
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- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 2
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/3105—After-treatment
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Abstract
【解決手段】装置は、移送チャンバ105と、エッチングチャンバと、計測チャンバ110と、エッチングチャンバと計測チャンバとの間で基板を移送するように構成されたロボット140とを有するマルチチャンバシステム100を備える。また、基板を処理し、この装置を用いて計測測定を実行する方法も開示されている。
【選択図】図1
Description
[0001]本発明は、マルチチャンバプロセスシステムにおける計測ツールを統合する方法及び装置に関する。より具体的には、本発明は、エッチングプロセスのモニタリングのための計測測定値を統合する方法及び装置に関する。
[0002]マイクロエレクトロニクスデバイスの製造は、典型的には、半導電性、絶縁性及び導電性の基板に対して実行される数百の個別のステップを必要とする複雑なプロセスシーケンスを伴う。これらのプロセスステップの実例は、酸化、拡散、イオン注入、薄膜成膜、洗浄、エッチング及びリソグラフィーを含む。(多くの場合、パターン転写ステップと呼ばれる)リソグラフィー及びエッチングを用いて、所望のパターンがまず、感光材料層、例えば、フォトレジストに転写された後、後のエッチング中に、下にある材料物質層に転写される。リソグラフィーステップにおいては、ブランケットフォトレジスト層が、パターンのイメージがフォトレジスト中に形成されるようにパターンを含有するレチクル又はフォトマスクを介して照射源に曝される。フォトレジストを適当な化学溶液で現像することにより、フォトレジストの一部が除去され、それに伴って、パターン化されたフォトレジスト層が得られる。このフォトレジストパターンをマスクとして作用させた状態で、下にある材料物質層が、例えば、ウェットエッチング又はドライエッチングを用いて反応性環境に曝され、それにより、パターンが下にある材料物質層に転写される。
Claims (19)
- 移送チャンバと、エッチングチャンバと、計測チャンバとを備えるマルチチャンバシステムと、
前記移送チャンバ内に配置され、かつ前記エッチングチャンバと前記計測チャンバとの間で基板を移送するように構成されたロボットと、
を備え、
前記ロボットが、
ロボットアームと、
前記ロボットアームに取り付けられた、第1の位置を有するプレートと、
前記プレートの第2の位置に取り付けられたブレードと、
を備え、
前記ブレードが、前記ブレードの前記プレートに対する方向性を変化させる少なくとも1つの調節可能部材と、開口を画成する周辺部とを有し、前記周辺部が、前記基板を、前記周辺部の上の所定の高さに支持する支持部材を有する、装置。 - 前記少なくとも1つの調節可能部材が、前記ブレードと前記プレートとの間の高さ及び角度のうちの少なくとも一方を調節するように構成されている、請求項1に記載の装置。
- 前記少なくとも1つの調節可能部材が、前記ブレードの中心長手方向軸の両側のねじ穴内に配置された2つの位置決めねじを備え、前記2つの位置決めねじの各々が、端部を前記プレートの上面に接触させている、請求項2に記載の装置。
- 前記ブレードの周辺部がさらに、前記基板の前記周辺部に対する横方向位置を規定する突出部材を備える、請求項1に記載の装置。
- 前記計測チャンバに作動可能に結合された計測ツールをさらに備える、請求項1に記載の装置。
- 前記計測ツールが、前記計測チャンバの底部側から前記計測チャンバに結合されている、請求項5に記載の装置。
- 前記ロボット及び前記計測ツールとつながっているコントローラをさらに備え、前記コントローラが、前記ブレードを前記プレートに対して、前記計測ツールの動作に関して所定の位置に移動させる信号を提供するように構成されている、請求項5に記載の装置。
- 前記ブレードが、前記計測ツールを用いて前記基板に対して測定を実行するための十分に正確なアラインメントで、前記計測チャンバ内部に前記基板を支持するように構成されている、請求項5に記載の装置。
- 前記計測チャンバが、限定された圧力条件下での動作用に構成されている、請求項1に記載の装置。
- 基板を処理する方法であって、
(a)移送チャンバと、エッチングチャンバと、計測チャンバとを備えるマルチチャンバシステムを設けるステップと、
(b)前記計測チャンバに作動可能に結合された計測ツールを設けるステップと、
(c)正方形又は矩形形状の一方である基板を、前記エッチングチャンバ内で処理するステップと、
(d)前記処理された基板を、前記移送チャンバ内部に提供されたロボットを用いて、前記計測チャンバへ移送するステップと、
(e)前記計測ツールを用いて、前記処理された基板に対して、少なくとも1つの光学測定を実行し、その間、前記処理された基板を、前記計測チャンバ内部の所定位置で前記ロボットのブレード上に支持するステップと、
(f)前記少なくとも1つの光学測定から、基板の特性を判断するステップと、
を備える方法。 - 前記基板特性が、クリティカルディメンジョン、エッチング深度、層の厚さ又は位相シフトのうちの1つを含む、請求項10に記載の方法。
- (g)ステップ(d)及び(e)を通して限定された圧力条件下で前記計測チャンバ及び前記移送チャンバを維持するステップをさらに備える、請求項10に記載の方法。
- 前記基板が、酸化シリコン含有層、金属含有層又はフォトレジスト層のうちの1つを備える、請求項10に記載の方法。
- 前記酸化シリコン含有層が石英である、請求項13に記載の方法。
- 前記金属含有層が、クロム、酸化クロム、酸窒化クロム、モリブデン、ケイ化モリブデン、ケイ化モリブデンタングステン又はこれらの組合せのうちの1つを備える、請求項13に記載の方法。
- 前記ステップ(e)が、
(e1)入射光ビームを前記計測ツールから前記処理した基板上へ向けるステップと、
(e2)前記処理した基板からのリターン光ビームを検出するステップと、
をさらに備える、請求項10に記載の方法。 - ステップ(e)の前に、前記入射光ビームを、前記基板上のテストパターンへ向けることができるように、かつ前記リターン光ビームを、前記計測ツールによって検出できるようにするために、前記基板の方向性を調節するステップをさらに備える、請求項16に記載の方法。
- (g)前記マルチチャンバシステム及び前記計測ツールとつながっているコントローラを提供するステップと、
(h)前記光学測定から得られた情報に応答して、前記コントローラから前記マルチチャンバシステムへ命令を送るステップと、
をさらに備える、請求項10に記載の方法。 - (g)(f)で判断された基板の特性を基準と比較するステップと、
(h)(g)からの結果に基づいて、
(h1)追加的処理のために、前記処理した基板を前記エッチングチャンバへ移送するステップと、
(h2)別の基板を処理する前に、前記エッチングチャンバにおける少なくとも1つのプロセス条件を変えるステップと、
のうちの一方を実行するステップと、
をさらに備える、請求項10に記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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US11/561,995 US7601272B2 (en) | 2005-01-08 | 2006-11-21 | Method and apparatus for integrating metrology with etch processing |
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JP2008147645A true JP2008147645A (ja) | 2008-06-26 |
JP2008147645A5 JP2008147645A5 (ja) | 2011-01-06 |
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Country | Link |
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US (1) | US7601272B2 (ja) |
EP (1) | EP1939931B1 (ja) |
JP (1) | JP2008147645A (ja) |
KR (1) | KR101188385B1 (ja) |
CN (2) | CN103745912B (ja) |
AT (1) | ATE455369T1 (ja) |
DE (1) | DE602007004290D1 (ja) |
TW (1) | TWI387039B (ja) |
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TW200832594A (en) | 2008-08-01 |
KR20080046107A (ko) | 2008-05-26 |
CN101188192A (zh) | 2008-05-28 |
US20070097383A1 (en) | 2007-05-03 |
EP1939931B1 (en) | 2010-01-13 |
TWI387039B (zh) | 2013-02-21 |
DE602007004290D1 (de) | 2010-03-04 |
EP1939931A3 (en) | 2008-11-05 |
CN103745912A (zh) | 2014-04-23 |
KR101188385B1 (ko) | 2012-10-08 |
US7601272B2 (en) | 2009-10-13 |
EP1939931A2 (en) | 2008-07-02 |
CN103745912B (zh) | 2018-09-21 |
ATE455369T1 (de) | 2010-01-15 |
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