KR20160122217A - 프로세스 윈도우를 최적화하는 방법 - Google Patents
프로세스 윈도우를 최적화하는 방법 Download PDFInfo
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- KR20160122217A KR20160122217A KR1020167025138A KR20167025138A KR20160122217A KR 20160122217 A KR20160122217 A KR 20160122217A KR 1020167025138 A KR1020167025138 A KR 1020167025138A KR 20167025138 A KR20167025138 A KR 20167025138A KR 20160122217 A KR20160122217 A KR 20160122217A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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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
- 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
- G03F7/70525—Controlling normal operating mode, e.g. matching different apparatus, remote control or prediction of failure
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- G—PHYSICS
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- 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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- G06F17/5009—
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/20—Sequence of activities consisting of a plurality of measurements, corrections, marking or sorting steps
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Abstract
Description
도 1은 본 발명의 일 실시예에 따른 리소그래피 장치를 도시한 도면;
도 2는 일 실시예에 따른 리소그래피 공정에서 결함들의 존재를 결정하는 방법에 대한 흐름도;
도 3은 처리 파라미터들의 예시적인 소스들을 나타낸 도면;
도 4a는 도 2의 단계 213의 구현을 나타낸 도면;
도 4b는 도 2의 단계 213의 대안적인 구현을 나타낸 도면;
도 5a는 다수의 다이를 갖는 예시적인 기판을 나타낸 도면;
도 5b는 통상적인 방법을 이용하여 얻어진 사용가능한 초점심도(usable depth of focus: uDOF)를 나타낸 도면;
도 5c는 본 명세서에 설명된 일 실시예에 따른 방법을 이용하여 얻어진 사용가능한 초점심도(uDOF)를 나타낸 도면;
도 6은 처리 흐름에 대한 개략적인 흐름도; 및
도 7은 포커스에 대한 예시적인 맵을 나타낸 도면이다.
Claims (15)
- 기판 상으로 패턴의 처리를 수반하는 디바이스 제조 공정을 위한 컴퓨터-구현되는(computer-implemented) 결함 결정 또는 예측 방법에 있어서,
상기 패턴으로부터 프로세싱 윈도우 제한 패턴(processing window limiting pattern : PWLP)을 식별하는 단계;
상기 프로세싱 윈도우 제한 패턴이 처리되는 처리 파라미터를 결정하는 단계; 및
상기 처리 파라미터를 이용하여, 상기 디바이스 제조 공정으로 상기 프로세싱 윈도우 제한 패턴으로부터 생성되는 결함의 존재, 존재 확률(probability of existence), 특성, 또는 이의 조합을 결정 또는 예측하는 단계를 포함하는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 존재, 존재 확률, 특성, 또는 이의 조합을 결정 또는 예측하는 단계는, 상기 프로세싱 윈도우 제한 패턴의 특성, 상기 패턴의 특성, 또는 둘 모두를 더 이용하는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 결함의 존재, 존재 확률, 특성, 또는 이의 조합을 이용하여 상기 처리 파라미터를 조정하는 단계를 더 포함하는 결함 결정 또는 예측 방법. - 제 3 항에 있어서,
상기 조정된 처리 파라미터를 이용하여, 상기 디바이스 제조 공정을 이용함으로써 상기 프로세싱 윈도우 제한 패턴으로부터 생성되는 잔여 결함의 존재, 존재 확률, 특성, 또는 이의 조합을 결정 또는 예측하는 단계를 더 포함하는 결함 결정 또는 예측 방법. - 제 4 항에 있어서,
상기 잔여 결함의 결정된 또는 예측된 존재, 존재 확률, 특성, 또는 이의 조합에 적어도 부분적으로 기초하여, 복수의 프로세싱 윈도우 제한 패턴들 중 어느 것을 검사할 것인지를 나타내는 단계를 더 포함하는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 프로세싱 윈도우 제한 패턴의 프로세스 윈도우를 결정하는 단계를 더 포함하는 결함 결정 또는 예측 방법. - 제 6 항에 있어서,
상기 결함의 존재, 존재 확률, 특성, 또는 이의 조합을 결정 또는 예측하는 단계는 상기 프로세스 윈도우와 상기 처리 파라미터를 비교하는 단계를 포함하는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 처리 파라미터를 처리 파라미터 맵으로 컴파일(compile)하는 단계를 더 포함하는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 프로세싱 윈도우 제한 패턴은 경험 모델(empirical model) 또는 연산 모델(computational model)을 이용하여 식별되는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 처리 파라미터는 포커스, 도즈, 소스 파라미터, 투영 광학기 파라미터, 메트롤로지로부터 얻어진 데이터, 및/또는 상기 디바이스 제조 공정에 사용되는 처리 장치의 작업자로부터의 데이터로부터 하나 이상 선택되는 결함 결정 또는 예측 방법. - 제 1 항에 있어서,
상기 결함의 존재, 존재 확률, 특성, 또는 이의 조합을 결정 또는 예측하는 단계는 상기 처리 파라미터에 따라서(under the processing parameter) 상기 프로세싱 윈도우 제한 패턴의 이미지 또는 예측되는 패터닝 윤곽(patterning contour)들을 시뮬레이션하는 단계, 및 이미지 또는 윤곽 파라미터를 결정하는 단계를 포함하는 결함 결정 또는 예측 방법. - 기판 상으로 또는 상기 기판의 다이 상으로 패턴의 처리를 수반하는 디바이스 제조 방법에 있어서,
상기 기판 또는 상기 다이를 처리하기 전에 처리 파라미터를 결정하는 단계;
상기 기판 또는 상기 다이를 처리하기 전에 상기 처리 파라미터를 이용하여, 또한 상기 기판 또는 상기 다이의 특성, 상기 기판 또는 상기 다이 상으로 처리될 패턴의 지오메트리의 특성, 또는 둘 모두를 이용하여, 결함의 존재, 결함의 존재 확률, 결함의 특성, 또는 이의 조합을 예측 또는 결정하는 단계; 및
상기 결함의 확률을 제거, 감소시키거나, 상기 결함의 심각도(severity)를 감소시키기 위해 상기 예측 또는 결정에 기초하여 상기 처리 파라미터를 조정하는 단계를 포함하는 디바이스 제조 방법. - 디바이스 제조 방법에 있어서,
제 1 항 내지 제 12 항 중 어느 한 항에 따른 컴퓨터-구현되는 결함 예측 방법; 및
상기 결함의 결정된 또는 예측된 존재, 존재 확률, 특성, 또는 이의 조합에 적어도 부분적으로 기초하여, 복수의 프로세싱 윈도우 제한 패턴들 중 어느 것을 검사할 것인지를 나타내는 단계를 포함하는 디바이스 제조 방법. - 리소그래피 공정을 위한 결함 결정, 예측 또는 분류 방법에 있어서,
상기 리소그래피 공정의 적어도 일부분의 시뮬레이션을 이용하여, 결함의 존재, 존재 확률, 특성, 또는 이의 조합을 결정 또는 예측하는 단계를 포함하는 결함 결정, 예측 또는 분류 방법. - 리소그래피 공정에서 복수의 패턴들로부터 검사될 패턴을 선택하는 방법에 있어서,
상기 리소그래피 공정의 적어도 일부분의 시뮬레이션에 적어도 부분적으로 기초하여, 검사될 상기 패턴을 선택하는 단계를 포함하는 패턴 선택 방법.
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US201461939071P | 2014-02-12 | 2014-02-12 | |
US61/939,071 | 2014-02-12 | ||
US201461943834P | 2014-02-24 | 2014-02-24 | |
US61/943,834 | 2014-02-24 | ||
PCT/EP2015/050168 WO2015120996A1 (en) | 2014-02-12 | 2015-01-07 | Method of optimizing a process window |
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KR1020167025138A Active KR101939288B1 (ko) | 2014-02-12 | 2015-01-07 | 프로세스 윈도우를 최적화하는 방법 |
KR1020227003222A Active KR102427139B1 (ko) | 2014-02-12 | 2015-01-07 | 프로세스 윈도우를 최적화하는 방법 |
KR1020217002743A Active KR102359050B1 (ko) | 2014-02-12 | 2015-01-07 | 프로세스 윈도우를 최적화하는 방법 |
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KR1020217002743A Active KR102359050B1 (ko) | 2014-02-12 | 2015-01-07 | 프로세스 윈도우를 최적화하는 방법 |
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EP (1) | EP3105636B1 (ko) |
JP (2) | JP6386569B2 (ko) |
KR (4) | KR102211093B1 (ko) |
CN (2) | CN105980934B (ko) |
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