JP5842808B2 - 瞳強度分布を調整する方法 - Google Patents
瞳強度分布を調整する方法 Download PDFInfo
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- JP5842808B2 JP5842808B2 JP2012500497A JP2012500497A JP5842808B2 JP 5842808 B2 JP5842808 B2 JP 5842808B2 JP 2012500497 A JP2012500497 A JP 2012500497A JP 2012500497 A JP2012500497 A JP 2012500497A JP 5842808 B2 JP5842808 B2 JP 5842808B2
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- H—ELECTRICITY
- 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
- 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
- H01L21/0274—Photolithographic processes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/70058—Mask illumination systems
- G03F7/70091—Illumination settings, i.e. intensity distribution in the pupil plane or angular distribution in the field plane; On-axis or off-axis settings, e.g. annular, dipole or quadrupole settings; Partial coherence control, i.e. sigma or numerical aperture [NA]
- G03F7/70116—Off-axis setting using a programmable means, e.g. liquid crystal display [LCD], digital micromirror device [DMD] or pupil facets
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/70058—Mask illumination systems
- G03F7/70125—Use of illumination settings tailored to particular mask patterns
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70491—Information management, e.g. software; Active and passive control, e.g. details of controlling exposure processes or exposure tool monitoring processes
- G03F7/705—Modelling or simulating from physical phenomena up to complete wafer processes or whole workflow in wafer productions
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/70616—Monitoring the printed patterns
- G03F7/70625—Dimensions, e.g. line width, critical dimension [CD], profile, sidewall angle or edge roughness
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/706843—Metrology apparatus
- G03F7/706849—Irradiation branch, e.g. optical system details, illumination mode or polarisation control
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- 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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/70605—Workpiece metrology
- G03F7/706843—Metrology apparatus
- G03F7/706851—Detection branch, e.g. detector arrangements, polarisation control, wavelength control or dark/bright field detection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Description
これによって、実際に得られている照明輝度分布Ψ(ξ,η)の持つ結像性能を本来得たい照明輝度分布ΨDESIGN(ξ,η)による結像性能に実効的に近づけるという目的で、各変調パラメータZiの値から決まる照明輝度分布の追加的な微小変調を空間光変調器3Sに対して行なう事が可能になる(OPEマッチング)。
Claims (14)
- 光源からの光を照明瞳に分布させ、該照明瞳を介した光でパターンを照明し、照明された該パターンの像で物体を露光する露光装置に用いられ、前記照明瞳における瞳強度分布を調整する方法において、
前記瞳強度分布と目標となる目標瞳強度分布との差を多項式を用いて表現することと、
前記パターンの像を前記物体上に形成する際の結像性能の変化と前記多項式の各項の係数との関係を用いて、前記結像性能が所定範囲内になるような前記多項式の各項の係数を算出することと、
を含む瞳強度分布を調整する方法。 - 前記算出することで得られる前記係数を用いて前記瞳強度分布を調整することをさらに含む請求項1に記載の瞳強度分布を調整する方法。
- 前記調整された瞳強度分布を前記変化される瞳強度分布として、前記表現すること及び前記算出することを実行する請求項2に記載の瞳強度分布を調整する方法。
- 前記多項式は、前記照明瞳における位置を変数とした多項式を備える請求項1〜3のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記多項式は、前記照明瞳における位置ξ,ηに関するフリンジツェルニケ多項式fi(ξ,η)と該フリンジツェルニケ多項式の各次数の展開係数Ziとを用いて定義される透過率変調関数T(ξ,η)≡exp[ΣiZifi(ξ,η)]を備える請求項4に記載の瞳強度分布を調整する方法。
- 前記多項式は、ディストーション多項式ξ’=ΣiZ’i{Di(ξ,η)・Dξ},η’=ΣiZ’i{Di(ξ,η)・Dη}を備える請求項4に記載の瞳強度分布を調整する方法。
- 前記算出することで最小自乗法を用いることを特徴とする請求項1〜6のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記結像性能は、前記パターンの像の線幅誤差を含む請求項1〜7のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記結像性能は、OPE誤差を含む請求項1〜8のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記結像性能は、プロセスウィンドウを含む請求項1〜9のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記多項式は、ツェルニケ多項式に前記目標となる瞳強度分布を乗じたものを含む請求項1〜10のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記多項式は、ディストーション多項式に前記目標瞳強度分布を乗じたものを含む請求項1〜10のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記多項式は、ボケの輝度分布を表すボケ関数と前記目標瞳強度分布との畳込みを含む請求項1〜10のいずれか一項に記載の瞳強度分布を調整する方法。
- 前記多項式は、フレア成分による変調に関する所定の指数関数を含む請求項1〜10のいずれか一項に記載の瞳強度分布を調整する方法。
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JP2012500497A JP5842808B2 (ja) | 2010-02-20 | 2011-02-14 | 瞳強度分布を調整する方法 |
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JP2010035476 | 2010-02-20 | ||
JP2010035476 | 2010-02-20 | ||
PCT/JP2011/000813 WO2011102109A1 (ja) | 2010-02-20 | 2011-02-14 | 光源最適化方法、露光方法、デバイス製造方法、プログラム、露光装置、リソグラフィシステム、及び光源評価方法、並びに光源変調方法 |
JP2012500497A JP5842808B2 (ja) | 2010-02-20 | 2011-02-14 | 瞳強度分布を調整する方法 |
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JP2015077395A Division JP6107870B2 (ja) | 2010-02-20 | 2015-04-06 | 瞳強度分布調整方法、露光方法及びデバイス製造方法 |
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JPWO2011102109A1 JPWO2011102109A1 (ja) | 2013-06-17 |
JP5842808B2 true JP5842808B2 (ja) | 2016-01-13 |
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JP2015077395A Active JP6107870B2 (ja) | 2010-02-20 | 2015-04-06 | 瞳強度分布調整方法、露光方法及びデバイス製造方法 |
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JP (2) | JP5842808B2 (ja) |
KR (1) | KR20120116329A (ja) |
WO (1) | WO2011102109A1 (ja) |
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US9551938B2 (en) | 2017-01-24 |
KR20120116329A (ko) | 2012-10-22 |
JPWO2011102109A1 (ja) | 2013-06-17 |
JP2015172750A (ja) | 2015-10-01 |
US20120133915A1 (en) | 2012-05-31 |
JP6107870B2 (ja) | 2017-04-12 |
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