JP6993941B2 - マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 - Google Patents
マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 Download PDFInfo
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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
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
- G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
- G03F9/7003—Alignment type or strategy, e.g. leveling, global alignment
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/02—Interferometers
- G01B9/02015—Interferometers characterised by the beam path configuration
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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
-
- 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
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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
- G03F7/70653—Metrology techniques
- G03F7/70675—Latent image, i.e. measuring the image of the exposed resist prior to development
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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
- G03F7/70681—Metrology strategies
- G03F7/70683—Mark designs
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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
- G03F7/70691—Handling of masks or workpieces
- G03F7/70733—Handling masks and workpieces, e.g. exchange of workpiece or mask, transport of workpiece or mask
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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
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/7085—Detection arrangement, e.g. detectors of apparatus alignment possibly mounted on wafers, exposure dose, photo-cleaning flux, stray light, thermal load
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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
- G03F9/00—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically
- G03F9/70—Registration or positioning of originals, masks, frames, photographic sheets or textured or patterned surfaces, e.g. automatically for microlithography
- G03F9/7049—Technique, e.g. interferometric
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
- G01B2290/65—Spatial scanning object beam
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Description
Δφ=φ1-φ2=4・2π・Δx/p (1)
図1に参照番号54に示すミラーは、図3に記載のミラー54aに対応する。これらのミラーは、測定構造のx座標に関する横方向位置の特定に使用される。この目的のために、y方向に延びる格子線を有する線格子32aが、測定構造として使用される。ウェーハ30の面全体の測定では、線格子32aは、ウェーハ面31上で蜘蛛の巣型の配列で位置決めされる。測定構造のy方向の位置を測定するために、対応する格子構造32bがウェーハ面31上に配置され、その格子線はx方向に延びている。
この図では格子構造72を文字「A」に示している。測定ビーム74aと74bとへの入射測定光44の分割は、格子A上でのマイナス1次の回折次数とプラス1次の回折次数とにおける回折によって実施される。次に、測定ビーム74a及び74bは、ウェーハ30の面上の測定構造32上でマイナス1次の回折次数とプラス1次の回折次数とにおける回折によってこれらの測定ビーム自体に反射して戻される。格子構造72は、有利な態様においては、ウェーハ30の面全体を測定することができるように、少なくとも300mmの直径を有するように設計される。
Δφ=φ1-φ2=4π・Δx/p (2)
ν==2・νgratingA 及び Δν==2・1/λ・sin(α) (3)
νgratingAは、格子構造72の間隔を表している。一実施形態により、角度αは少なくとも0.1°である。
Positioning:位置決め
direction of incidence x component of the k-vector:k-ベクトルの入射方向x成分
DOE outward path:DOE外向き経路
Wafer:ウェーハ
DOE return path:DOE戻り経路
emergent direction x component of the k-vector:k-ベクトルの射出方向x成分
DIFFRACTION ORDERS:回折次数
used reflex:使用反射光
direction of incidence:入射方向
DOE outward path:DOE外向き経路
Wafer:ウェーハ
DOE return path:DOE戻り経路
emergent direction x component of the k-vector:k-ベクトルの射出方向x成分
DIFFRACTION ORDERS:回折次数
used reflex:使用反射光
Form:形状
direction of incidence x component of the k-vector:k-ベクトルの入射方向x成分
DOE outward path:DOE外向き経路
Wafer:ウェーハ
DOE return path:DOE戻り経路
emergent direction x component of the k-vector:k-ベクトルの射出方向x成分
DIFFRACTION ORDERS:回折次数
interfering reflex:干渉反射光
used reflex:使用反射光
interfering reflex:干渉反射光
direction of incidence:入射方向
DOE outward path:DOE外向き経路
Wafer:ウェーハ
DOE return path:DOE戻り経路
emergent direction x component of the k-vector:k-ベクトルの射出方向x成分
DIFFRACTION ORDERS:回折次数
interfering reflex:干渉反射光
used reflex:使用反射光
interfering reflex:干渉反射光
sin(α)>NA (4)
R=λ/NA (5)
sin(2β)>NA (6)
h=0.5×λ2/(n-1)=λ2、n=1.5の場合 (7)
10 投影露光ツール
12 照明系
14 露光放射線源
15 露光放射線
16 ビーム伝播光学系
17 照明器
18 投影対物系
19 フレーム
20 マスク
22 マスク構造
24 マスク台
30 ウェーハ
31 ウェーハ面
32 測定構造
32a 線格子
32b 線格子
33 露光台
34 ウェーハホルダ
36 変位台
38 測定台
40 測定装置
41 第1の測定光源
42 第1の測定光
42n 使用光
42s 干渉光
43 第2の測定光源
44 第2の測定光
44a 第1の測定ビーム
44b 第2の測定ビーム
44e 入射測定光
44n 使用光
44s 干渉光
46 干渉計
48 ビームスプリッタ
50 フィゾーコリメータ
51 光軸
52 フィゾー面
54 平面ミラー
54a 平面ミラー
54b 平面ミラー
56 開口部
58 コリメータレンズ
60 局所分解検出器
61 検出面
62 評価デバイス
64 記録デバイス
66 制御デバイス
68 露光視野
70 回折光学要素
72 格子構造
74a、74b 測定ビーム
132a 格子構造
132b 格子構造
154 キャッツアイ配列
170 カラービームスプリッタ
12 照明系
18 投影対物系
22 マスク構造
30 ウェーハ
Claims (4)
- 像提供基板のマスク構造を構造化される基板上に結像するためのマイクロリソグラフィのための投影露光ツールであって、
前記投影露光ツール内に統合され、基板のうちの1つの面上に配置された測定構造の該基板面に関する少なくとも1つの横方向の互いに対する相対位置を測定し、それによって、同時干渉計測を用いて、互いに対して横方向にオフセットして配置された測定構造の少なくとも3つのそれぞれの横方向相対位置を測定するように構成され、同時に測定される測定構造のうちの2つは、互いから少なくとも1mm分離した、測定装置、
を含み、
前記測定構造は、構造化可能な製品区域を取り囲む複数の蜘蛛の巣メッシュを有する蜘蛛の巣構造を形成するように配置される、
ことを特徴とする投影露光ツール。 - 前記測定装置は、前記基板面全体にわたって分布された測定構造の前記横方向相対位置を同時に測定するように構成される、
ことを特徴とする請求項1に記載の投影露光ツール。 - 前記測定装置は、前記構造化される基板上の前記横方向相対位置の測定値を取得するように構成される、
ことを特徴とする請求項1から請求項2のいずれか1項に記載の投影露光ツール。 - 前記測定装置は、前記基板面全体上の前記測定構造の前記横方向相対位置の測定値を10秒未満で取得するように構成される、
ことを特徴とする請求項1から請求項3のいずれか1項に記載の投影露光ツール。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38725010P | 2010-09-28 | 2010-09-28 | |
DE102010041556A DE102010041556A1 (de) | 2010-09-28 | 2010-09-28 | Projektionsbelichtungsanlage für die Mikrolithographie und Verfahren zur mikrolithographischen Abbildung |
DE102010041556.1 | 2010-09-28 | ||
US61/387,250 | 2010-09-28 |
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JP2016039152A Division JP6429817B2 (ja) | 2010-09-28 | 2016-03-01 | マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 |
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JP2018165838A JP2018165838A (ja) | 2018-10-25 |
JP6993941B2 true JP6993941B2 (ja) | 2022-01-14 |
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JP2013530607A Active JP5898210B2 (ja) | 2010-09-28 | 2011-09-22 | マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 |
JP2016039152A Expired - Fee Related JP6429817B2 (ja) | 2010-09-28 | 2016-03-01 | マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 |
JP2018131561A Active JP6993941B2 (ja) | 2010-09-28 | 2018-07-11 | マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 |
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JP2013530607A Active JP5898210B2 (ja) | 2010-09-28 | 2011-09-22 | マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 |
JP2016039152A Expired - Fee Related JP6429817B2 (ja) | 2010-09-28 | 2016-03-01 | マイクロリソグラフィのための投影露光ツール及びマイクロリソグラフィ結像の方法 |
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US (5) | US9046792B2 (ja) |
JP (3) | JP5898210B2 (ja) |
CN (1) | CN103154819B (ja) |
DE (1) | DE102010041556A1 (ja) |
TW (1) | TWI546629B (ja) |
WO (1) | WO2012041457A2 (ja) |
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DE102010041556A1 (de) * | 2010-09-28 | 2012-03-29 | Carl Zeiss Smt Gmbh | Projektionsbelichtungsanlage für die Mikrolithographie und Verfahren zur mikrolithographischen Abbildung |
WO2014062972A1 (en) * | 2012-10-18 | 2014-04-24 | Kla-Tencor Corporation | Symmetric target design in scatterometry overlay metrology |
US10078269B2 (en) | 2015-10-02 | 2018-09-18 | Nikon Corporation | Array of encoders for alignment measurement |
US10712671B2 (en) | 2016-05-19 | 2020-07-14 | Nikon Corporation | Dense line extreme ultraviolet lithography system with distortion matching |
US11067900B2 (en) | 2016-05-19 | 2021-07-20 | Nikon Corporation | Dense line extreme ultraviolet lithography system with distortion matching |
JP2019518246A (ja) | 2016-06-20 | 2019-06-27 | 株式会社ニコン | 歪み整合のための密集ライン極紫外線リソグラフィシステム |
US9960076B2 (en) | 2016-08-05 | 2018-05-01 | Infineon Technologies Ag | Devices with backside metal structures and methods of formation thereof |
DE102018201935B4 (de) * | 2018-02-08 | 2022-12-15 | Carl Zeiss Smt Gmbh | Verfahren zur Vermessung von Strukturen auf einem Substrat für die Mikrolithographie |
US11036145B2 (en) | 2018-12-21 | 2021-06-15 | Applied Materials, Inc. | Large area self imaging lithography based on broadband light source |
US20220268574A1 (en) * | 2019-07-24 | 2022-08-25 | Asml Holding N.V. | On chip wafer alignment sensor |
CN113784044B (zh) * | 2021-08-26 | 2023-07-18 | 昆山丘钛微电子科技股份有限公司 | 一种摄像模组成像方法、摄像模组及电子设备 |
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US9709902B2 (en) | 2017-07-18 |
CN103154819A (zh) | 2013-06-12 |
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TWI546629B (zh) | 2016-08-21 |
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WO2012041457A3 (en) | 2012-06-28 |
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US20150042975A1 (en) | 2015-02-12 |
JP2016153895A (ja) | 2016-08-25 |
US20170371251A1 (en) | 2017-12-28 |
US9046792B2 (en) | 2015-06-02 |
JP2013541210A (ja) | 2013-11-07 |
US10303068B2 (en) | 2019-05-28 |
JP5898210B2 (ja) | 2016-04-06 |
CN103154819B (zh) | 2017-06-09 |
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