KR20210061474A - 검사 장치용 조명 소스, 검사 장치 및 검사 방법 - Google Patents
검사 장치용 조명 소스, 검사 장치 및 검사 방법 Download PDFInfo
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- KR20210061474A KR20210061474A KR1020217015217A KR20217015217A KR20210061474A KR 20210061474 A KR20210061474 A KR 20210061474A KR 1020217015217 A KR1020217015217 A KR 1020217015217A KR 20217015217 A KR20217015217 A KR 20217015217A KR 20210061474 A KR20210061474 A KR 20210061474A
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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
- G03F7/7065—Defects, e.g. optical inspection of patterned layer for defects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/9501—Semiconductor wafers
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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
- G03F7/70141—Illumination system adjustment, e.g. adjustments during exposure or alignment during assembly of illumination system
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G2/00—Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95676—Masks, reticles, shadow masks
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G2/00—Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
- H05G2/001—Production of X-ray radiation generated from plasma
- H05G2/008—Production of X-ray radiation generated from plasma involving an energy-carrying beam in the process of plasma generation
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- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Engineering & Computer Science (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
- Spinning Or Twisting Of Yarns (AREA)
Abstract
Description
도 1 은 리소그래피 장치를 도시한다;
도 2 는 본 발명에 따른 검사 장치가 사용될 수 있는 리소그래피 셀 또는 클러스터를 도시한다;
도 3 은 공지된 암시야 이미징 검사 방법을 수행하도록 적응된 본 발명의 실시예에 따른 검사 장치를 개략적으로 예시한다;
도 4 는 본 발명의 일 실시예에 따른 계측 장치를 위한 조명 배열체를 개략적으로 보여준다;
도 5 는 본 발명의 제 1 실시예에 따른 HHG 소스를 사용하는 계측 장치를 개략적으로 도시한다;
도 6 은 본 발명의 제 2 실시예에 따른 HHG 소스를 사용한 계측 장치를 개략적으로 도시한다;
도 7 은 본 발명의 다른 실시예에 따른 HHG 소스를 사용한 계측 장치의 세부 사항을 개략적으로 도시한다; 그리고
도 8 은 본 발명의 일 실시예에 따른 HHG 소스의 세부 사항을 개략적으로 도시한다.
Claims (15)
- 고 고조파 방사선을 생성하기 위한 조명 소스로서,
고 고조파 생성 매질;
상기 고 고조파 방사선을 생성하도록 상기 고 고조파 생성 매질을 여기시키기 위한 펌프 방사선의 빔을 방출하는 펌프 방사선 소스; 및
상기 고 고조파 생성 매질을 여기시키기 전에 상기 펌프 방사선의 빔의 파면을 공간적으로 변조하도록 동작가능한 보상 광학 디바이스를 포함하는, 조명 소스. - 제1항에 있어서,
상기 보상 광학 디바이스는 펌프 방사선 소스와 고 고조파 생성 매질 사이의 광 경로에 위치하는, 조명 소스. - 제1항 또는 제2항에 있어서,
상기 보상 광학 디바이스는 공간적 광변조 디바이스를 포함하는, 조명 소스. - 제1항 또는 제2항에 있어서,
상기 공간적 광변조 디바이스는 변형가능 미러, 디지털 마이크로미러 디바이스, 또는 미세전자기계 시스템 중 하나를 포함하는, 조명 소스. - 제1항 또는 제2항에 있어서,
펌프 방사선은 적외선 방사선을 포함하는, 조명 소스. - 제1항 또는 제2항에 있어서,
상기 보상 광학 디바이스는, 상기 고 고조파 방사선의 빔의 위치 오차를 정정하도록, 상기 펌프 방사선의 빔의 파면을 공간적으로 변조하도록 동작가능한, 조명 소스. - 제6항에 있어서,
상기 조명 소스는,
빔의 포커싱된 포인트의 위치를 기술하는 위치 신호를 수신하고 - 상기 빔은 펌프 방사선의 빔 또는 상기 고 고조파 방사선의 빔임 -;
상기 위치 신호에 기초하여, 요구되는 위치에 대한 상기 빔의 포커싱된 포인트의 상기 위치에 대한 정정을, 상기 펌프 방사선의 빔의 파면 변조의 관점에서 결정하며,
상기 보상 광학 디바이스를 통하여 상기 정정을 구현하도록 동작가능한, 조명 소스. - 제7항에 있어서,
위치 신호를 생성하기 위하여 상기 빔의 포커싱된 포인트를 측정하도록 동작가능한 위치 검출기를 포함하는, 조명 소스. - 제8항에 있어서,
상기 위치 검출기는 펌프 방사선의 빔의 포커싱된 포인트의 위치를 측정하도록 동작가능한, 조명 소스. - 제8항에 있어서,
상기 위치 검출기는 고 고조파 방사선의 빔의 포커싱된 포인트의 위치를 측정하도록 동작가능한, 조명 소스. - 제1항 또는 제2항에 있어서,
상기 보상 광학 디바이스는, 요구되는 프로파일을 펌프 방사선의 빔 상에 부여하여, 대응하는 프로파일을 상기 고 고조파 방사선의 빔 상에 부여하도록, 상기 펌프 방사선의 빔의 파면을 공간적으로 변조하도록 동작가능한, 조명 소스. - 제11항에 있어서,
상기 요구되는 프로파일은 상기 펌프 방사선의 빔 상의 비-원형 단면 프로파일을 포함하는, 조명 소스. - 제11항에 있어서,
상기 요구되는 프로파일은 상기 펌프 방사선의 빔 상의 평평한-상단 프로파일을 포함하는, 조명 소스. - 제1항 또는 제2항에 있어서,
상기 보상 광학 디바이스는 변동하는 조명 패턴을 상기 펌프 방사선의 빔 상에 부여하기 위해 상기 펌프 방사선의 빔의 파면을 공간적으로 변조하도록 동작가능한, 조명 소스. - 제1항 또는 제2항에 있어서,
고 고조파 생성 매질은 가스 소스에 의해 방출되는 가스를 포함하고,
상기 조명 소스는, 상기 보상 광학 디바이스에 의해 부과되는 펌프 방사선의 빔의 파면의 공간적 변조에 기초하여, 펌프 방사선의 빔과 생성된 고 고조파 방사선 사이의 위상 매칭을 최적화하기 위해, 상기 가스 소스의 제어를 위한 순방향 제어 신호를 결정하도록 동작가능한, 조명 소스.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16188816.9A EP3296723A1 (en) | 2016-09-14 | 2016-09-14 | Illumination source for an inspection apparatus, inspection apparatus and inspection method |
EP16188816.9 | 2016-09-14 | ||
KR1020197010298A KR102256685B1 (ko) | 2016-09-14 | 2017-08-02 | 검사 장치용 조명 소스, 검사 장치 및 검사 방법 |
PCT/EP2017/069506 WO2018050350A1 (en) | 2016-09-14 | 2017-08-02 | Illumination source for an inspection apparatus, inspection apparatus and inspection method |
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KR1020197010298A Division KR102256685B1 (ko) | 2016-09-14 | 2017-08-02 | 검사 장치용 조명 소스, 검사 장치 및 검사 방법 |
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KR20210061474A true KR20210061474A (ko) | 2021-05-27 |
KR102360940B1 KR102360940B1 (ko) | 2022-02-08 |
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KR1020217015217A Active KR102360940B1 (ko) | 2016-09-14 | 2017-08-02 | 검사 장치용 조명 소스, 검사 장치 및 검사 방법 |
KR1020197010298A Active KR102256685B1 (ko) | 2016-09-14 | 2017-08-02 | 검사 장치용 조명 소스, 검사 장치 및 검사 방법 |
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Country Status (8)
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US (2) | US10330606B2 (ko) |
EP (1) | EP3296723A1 (ko) |
JP (2) | JP6959339B2 (ko) |
KR (2) | KR102360940B1 (ko) |
CN (1) | CN109716110B (ko) |
IL (1) | IL265282B2 (ko) |
TW (2) | TWI657240B (ko) |
WO (1) | WO2018050350A1 (ko) |
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CN109716110B (zh) | 2022-01-18 |
TW201823713A (zh) | 2018-07-01 |
JP2019529953A (ja) | 2019-10-17 |
IL265282A (en) | 2019-05-30 |
JP7271628B2 (ja) | 2023-05-11 |
TWI657240B (zh) | 2019-04-21 |
KR20190051029A (ko) | 2019-05-14 |
EP3296723A1 (en) | 2018-03-21 |
JP2022019719A (ja) | 2022-01-27 |
TW201930861A (zh) | 2019-08-01 |
WO2018050350A1 (en) | 2018-03-22 |
US20180073992A1 (en) | 2018-03-15 |
KR102256685B1 (ko) | 2021-05-26 |
IL265282B1 (en) | 2023-03-01 |
US10451559B2 (en) | 2019-10-22 |
TWI692634B (zh) | 2020-05-01 |
CN109716110A (zh) | 2019-05-03 |
KR102360940B1 (ko) | 2022-02-08 |
US20190003981A1 (en) | 2019-01-03 |
IL265282B2 (en) | 2023-07-01 |
US10330606B2 (en) | 2019-06-25 |
JP6959339B2 (ja) | 2021-11-02 |
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