KR102297803B1 - 리소그래피 제조 공정을 모니터링하는 장치 및 방법들 - Google Patents
리소그래피 제조 공정을 모니터링하는 장치 및 방법들 Download PDFInfo
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- 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
- G03F7/707—Chucks, e.g. chucking or un-chucking operations or structural details
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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
- G03F7/70491—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
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- 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
- G03F7/70616—Monitoring the printed patterns
- G03F7/7065—Defects, e.g. optical inspection of patterned layer for defects
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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
- G03F7/706835—Metrology information management or control
- G03F7/706837—Data analysis, e.g. filtering, weighting, flyer removal, fingerprints or root cause analysis
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- 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
- G03F7/70783—Handling stress or warp of chucks, masks or workpieces, e.g. to compensate for imaging errors or considerations related to warpage of masks or workpieces due to their own weight
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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
- G03F9/7023—Aligning or positioning in direction perpendicular to substrate surface
- G03F9/7026—Focusing
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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
- G03F9/7023—Aligning or positioning in direction perpendicular to substrate surface
- G03F9/7034—Leveling
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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
- G03F9/7092—Signal processing
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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
- G03F7/70491—Information management, e.g. software; Active and passive control, e.g. details of controlling exposure processes or exposure tool monitoring 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
- G03F7/70691—Handling of masks or workpieces
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- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Abstract
Description
도 1은 본 발명의 일 실시예에 따른 리소그래피 장치를 도시하는 도면;
도 2는 본 발명의 실시예들에 따른 진단 장치를 더 포함하는 반도체 디바이스들을 위한 리소그래피 생산 시스템을 형성하는 다른 장치들과 함께 도 1의 리소그래피 장치의 사용을 개략적으로 나타내는 도면;
도 3은 (a) 높이 변동 데이터의 회귀로부터의 잔차 데이터, 및 (b) 에지 시그니처(edge signature), (c) 중심 버얼 시그니처 및 (d) 중심의 다른 시그니처를 포함하는 이 평균 잔차 데이터로부터 디컨볼브(deconvolve)된 시그니처들을 나타내는 도면;
도 4는 시간에 따른 기판 지지체의 디컨볼브된 시그니처들의 변화율을 나타내는, x-축 상의 시간(t)에 대한 y-축 상의 거리 메트릭(d)의 플롯; 및
도 5는 본 발명의 일 실시예를 설명하는 흐름도이다.
Claims (15)
- 리소그래피 공정을 모니터링하는 방법에 있어서,
기판 지지체에 의해 지지되는 기판에 관한 높이 변동 데이터를 얻는 단계;
상기 높이 변동 데이터를 통해 회귀(regression)를 피팅(fit)하는 단계 -상기 회귀는 상기 기판의 형상에 근접함- ;
상기 높이 변동 데이터와 상기 회귀 간의 차이를 나타내는 잔차 데이터(residual data)를 결정하는 단계;
시간에 따른 상기 잔차 데이터의 변동을 모니터링하는 단계; 및
디컨볼브(deconvolve)된 잔차 데이터를 얻도록 상기 기판 지지체의 알려진 특징들에 기초하여 상기 잔차 데이터를 디컨볼브하는 단계
를 포함하는 방법. - 제 1 항에 있어서,
상기 모니터링하는 단계는 상기 디컨볼브된 잔차 데이터를 모니터링하는 단계를 포함하는 방법. - 제 2 항에 있어서,
상기 디컨볼브된 잔차 데이터는 기판 에지에 관한 적어도 하나의 서브-그룹 및 기판 중심에 관한 적어도 하나의 서브-그룹을 포함하는 방법. - 제 3 항에 있어서,
상기 기판 중심에 관한 적어도 하나의 서브-그룹은 상기 기판 지지체 상의 버얼(burl)들의 위치에 관한 제 1 중심 서브-그룹 및 상기 기판 중심의 잔차 데이터의 나머지에 관한 제 2 중심 서브-그룹으로 디컨볼브되는 방법. - 제 2 항에 있어서,
상기 잔차 데이터를 디컨볼브하는 단계는 상기 잔차 데이터에 적어도 하나의 필터를 적용하는 단계를 포함하는 방법. - 제 1 항에 있어서,
시간에 따른 상기 잔차 데이터의 변동을 모니터링하는 단계에 기초하여 유지보수 조치를 스케줄링(schedule)하는 단계를 포함하는 방법. - 제 6 항에 있어서,
상기 유지보수 조치는 상기 기판 지지체를 교체하는 것을 포함하는 방법. - 제 6 항에 있어서,
사건이 상기 잔차 데이터에서 관찰되어 오염을 나타내는 경우에, 상기 유지보수 조치는 상기 기판 지지체를 세정하는 단계를 포함하는 방법. - 제 8 항에 있어서,
상기 사건은 시간에 따른 상기 잔차 데이터에서의 스파이크(spike)를 포함하는 방법. - 제 8 항에 있어서,
상기 리소그래피 공정에 의해 적용되고 있는 제품 레이아웃에 대해 상기 오염의 위치를 결정하는 단계; 및
수율에 대한 상기 오염의 영향을 결정하는 단계를 포함하는 방법. - 제 1 항에 있어서,
상기 기판 지지체에 의해 지지되는 적어도 하나의 모니터 기판에 관한 모니터 높이 변동 데이터를 얻는 초기 단계를 포함하고, 상기 모니터 기판은 상기 리소그래피 공정에 의해 적용되는 산물(product)을 갖지 않는 방법. - 제 1 항에 있어서,
등가 벡터 맵(equivalent vector map)을 얻도록 상기 잔차 데이터를 벡터화하는 단계, 및 오버레이에 대한 여하한의 기판 지지체 변화들의 영향을 결정하기 위해 상기 벡터 맵을 사용하는 단계를 포함하는 방법. - 리소그래피 장치에 있어서,
기판에 관한 높이 변동 데이터를 측정하도록 작동가능한 레벨 센서;
상기 기판을 지지하도록 작동가능한 기판 지지체; 및
프로세서
를 포함하고, 상기 프로세서는:
상기 높이 변동 데이터를 통해 회귀를 피팅하고 -상기 회귀는 상기 기판의 형상에 근접함- ;
상기 높이 변동 데이터와 상기 회귀 간의 차이를 나타내는 잔차 데이터를 결정하고;
시간에 따른 상기 잔차 데이터의 변동을 모니터링하고; 및
디컨볼브(deconvolve)된 잔차 데이터를 얻도록 상기 기판 지지체의 알려진 특징들에 기초하여 상기 잔차 데이터를 디컨볼브하도록 작동가능한 리소그래피 장치. - 제 13 항에 있어서,
상기 프로세서는 상기 디컨볼브된 잔차 데이터를 모니터링하도록 더 작동가능한 리소그래피 장치. - 명령어들이 기록된 컴퓨터 프로그램을 저장하는 컴퓨터 판독가능 매체로서,
상기 명령어들은, 컴퓨터에 의해 실행될 때 청구항 1의 방법을 구현하는, 컴퓨터 판독가능 매체.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020217027300A KR102384562B1 (ko) | 2017-02-17 | 2018-01-03 | 리소그래피 제조 공정을 모니터링하는 장치 및 방법들 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17156769.6 | 2017-02-17 | ||
| EP17156769.6A EP3364247A1 (en) | 2017-02-17 | 2017-02-17 | Methods & apparatus for monitoring a lithographic manufacturing process |
| PCT/EP2018/050135 WO2018149553A1 (en) | 2017-02-17 | 2018-01-03 | Methods & apparatus for monitoring a lithographic manufacturing process |
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| KR1020217027300A Active KR102384562B1 (ko) | 2017-02-17 | 2018-01-03 | 리소그래피 제조 공정을 모니터링하는 장치 및 방법들 |
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| US (2) | US10866527B2 (ko) |
| EP (2) | EP3364247A1 (ko) |
| KR (2) | KR102297803B1 (ko) |
| CN (2) | CN113867109B (ko) |
| TW (2) | TWI828316B (ko) |
| WO (1) | WO2018149553A1 (ko) |
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| EP3654104A1 (en) | 2018-11-16 | 2020-05-20 | ASML Netherlands B.V. | Method for monitoring lithographic apparatus |
| WO2020099050A1 (en) | 2018-11-16 | 2020-05-22 | Asml Netherlands B.V. | Method for monitoring lithographic apparatus |
| EP3671347A1 (en) * | 2018-12-19 | 2020-06-24 | ASML Netherlands B.V. | Method for controling a manufacturing process and associated apparatuses |
| KR102730208B1 (ko) * | 2019-09-12 | 2024-11-13 | 에이에스엠엘 네델란즈 비.브이. | 리소그래피 매칭 성능의 결정 |
| US11988612B2 (en) * | 2021-01-26 | 2024-05-21 | Changxin Memory Technologies, Inc. | Methods for determining focus spot window and judging whether wafer needs to be reworked |
| JP7610463B2 (ja) * | 2021-04-20 | 2025-01-08 | キヤノン株式会社 | インプリント装置、インプリント方法および物品製造方法 |
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| CN110300929B (zh) | 2021-10-22 |
| CN113867109B (zh) | 2024-05-14 |
| US10866527B2 (en) | 2020-12-15 |
| TWI780106B (zh) | 2022-10-11 |
| WO2018149553A1 (en) | 2018-08-23 |
| US20200004164A1 (en) | 2020-01-02 |
| EP3364247A1 (en) | 2018-08-22 |
| KR102384562B1 (ko) | 2022-04-08 |
| US20210018847A1 (en) | 2021-01-21 |
| TW201833791A (zh) | 2018-09-16 |
| EP3583467A1 (en) | 2019-12-25 |
| TWI828316B (zh) | 2024-01-01 |
| CN110300929A (zh) | 2019-10-01 |
| KR20210111868A (ko) | 2021-09-13 |
| KR20190117662A (ko) | 2019-10-16 |
| EP3583467B1 (en) | 2022-06-01 |
| US11422476B2 (en) | 2022-08-23 |
| TW202301154A (zh) | 2023-01-01 |
| CN113867109A (zh) | 2021-12-31 |
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