KR101685041B1 - 기판의 모델을 평가하는 방법, 검사 장치 및 리소그래피 장치 - Google Patents
기판의 모델을 평가하는 방법, 검사 장치 및 리소그래피 장치 Download PDFInfo
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Abstract
Description
도 1은 본 발명의 일 실시예에 따른 리소그래피 장치를 도시하는 도면;
도 2는 본 발명의 일 실시예에 따른 리소그래피 셀(cell) 또는 클러스터(cluster)를 도시하는 도면;
도 3은 본 발명의 일 실시예에 따른 제 1 스케터로미터를 도시하는 도면;
도 4는 본 발명의 일 실시예에 따른 제 2 스케터로미터를 도시하는 도면;
도 5는 본 발명의 일 실시예에 따른 흐름도;
도 6은 본 발명의 일 실시예에 따른 방법으로부터의 결과들을 나타내는 그래프; 및
도 7은 본 발명의 일 실시예에 따른 푸리에 변환 분광계를 도시하는 도면이다.
Claims (6)
- 기판 상의 타겟을 검사하도록 구성된 검사 장치에 있어서:
상기 기판 상에 방사선을 투영하도록 구성된 방사선 투영기- 상기 방사선은 복수의 값들을 갖는 특성을 가짐 -;
상기 기판 상에 방사선을 포커싱하는 렌즈; 및
상기 기판의 표면으로부터 반사된 상기 방사선을 검출하도록 구성된 검출기;
를 포함하며,
상기 검출기는 상기 검출된 방사선을 복수의 세분화-부분(sub-division)들로 분리하도록 구성되고, 상기 세분화-부분 각각의 방사선은 상기 특성에 대해 상이한 값을 가지며,
상기 복수의 세분화-부분들 중 제 1 세분화-부분의 방사선은 상기 특성에 대해 제 1 특성값을 가지고, 상기 복수의 세분화-부분들 중 제 2 세분화-부분의 방사선은 상기 특성에 대해 제 2 특성값을 가지며, 상기 제 1 특성값 및 제 2 특성값은 서로 상이하고,
상기 검사 장치는 상기 타겟의 특성의 제 1 값 또는 제 1 잔차를 상기 제 1 특성값을 사용하여 결정하고, 상기 타겟의 특성의 제 2 값 또는 제 2 잔차를 상기 제 2 특성값을 사용하여 결정하며, 상기 타겟의 특성의 상기 제 1 값과 상기 제 2 값 또는 상기 제 1 잔차와 상기 제 2 잔차를 비교하여 상기 타겟의 특성을 검사하는 검사 장치. - 제 1 항에 있어서,
상기 세분화-부분들 사이에서 상이한 상기 특성은 파장인 검사 장치. - 제 1 항에 있어서,
상기 검출된 방사선을 복수의 세분화-부분들로 분리하도록 구성된 이미징 분광계(imaging spectrometer)를 더 포함하고, 상기 세분화-부분 각각의 방사선은 상기 특성에 대해 상이한 값을 갖는 검사 장치. - 리소그래피 장치에 있어서:
패턴을 조명하도록 배치된 조명 시스템;
기판 상에 상기 패턴의 이미지를 투영하도록 배치된 투영 시스템; 및
상기 기판 상의 타겟을 검사하도록 구성된 검사 장치;
를 포함하고, 상기 검사 장치는:
상기 기판 상에 방사선을 투영하도록 구성된 방사선 투영기- 상기 방사선은 복수의 값들을 갖는 특성을 가짐 -;
상기 기판 상에 방사선을 포커싱하는 렌즈; 및
상기 기판의 표면으로부터 반사된 상기 방사선을 검출하도록 구성된 검출기;
를 포함하며,
상기 검출기는 상기 검출된 방사선을 복수의 세분화-부분들로 분리하도록 구성되고, 상기 세분화-부분 각각의 방사선은 상기 특성에 대해 상이한 값을 가지며,
상기 복수의 세분화-부분들 중 제 1 세분화-부분의 방사선은 상기 특성에 대해 제 1 특성값을 가지고, 상기 복수의 세분화-부분들 중 제 2 세분화-부분의 방사선은 상기 특성에 대해 제 2 특성값을 가지며, 상기 제 1 특성값 및 제 2 특성값은 서로 상이하고,
상기 검사 장치는 상기 타겟의 특성의 제 1 값 또는 제 1 잔차를 상기 제 1 특성값을 사용하여 결정하고, 상기 타겟의 특성의 제 2 값 또는 제 2 잔차를 상기 제 2 특성값을 사용하여 결정하며, 상기 타겟의 특성의 상기 제 1 값과 상기 제 2 값 또는 상기 제 1 잔차와 상기 제 2 잔차를 비교하여 상기 타겟의 특성을 검사하는 리소그래피 장치. - 제 4 항에 있어서,
상기 세분화-부분들 사이에서 상이한 상기 특성은 파장인 리소그래피 장치. - 제 4 항 또는 제 5 항에 있어서,
상기 검출된 방사선을 복수의 세분화-부분들로 분리하도록 구성된 이미징 분광계를 더 포함하고, 상기 세분화-부분 각각의 방사선은 상기 특성에 대해 상이한 값을 갖는 리소그래피 장치.
Applications Claiming Priority (3)
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US7103408P | 2008-04-09 | 2008-04-09 | |
US61/071,034 | 2008-04-09 | ||
PCT/EP2009/002300 WO2009124669A1 (en) | 2008-04-09 | 2009-03-30 | A method of assessing a model of a substrate, an inspection apparatus and a lithographic apparatus |
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KR1020107024924A Division KR101617644B1 (ko) | 2008-04-09 | 2009-03-30 | 기판의 모델을 평가하는 방법, 검사 장치 및 리소그래피 장치 |
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KR20160054606A KR20160054606A (ko) | 2016-05-16 |
KR101685041B1 true KR101685041B1 (ko) | 2016-12-09 |
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KR1020167011043A Active KR101685041B1 (ko) | 2008-04-09 | 2009-03-30 | 기판의 모델을 평가하는 방법, 검사 장치 및 리소그래피 장치 |
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US (1) | US8830472B2 (ko) |
JP (1) | JP5100887B2 (ko) |
KR (2) | KR101617644B1 (ko) |
CN (1) | CN101978255B (ko) |
IL (2) | IL208056A (ko) |
NL (1) | NL1036734A1 (ko) |
TW (1) | TWI405046B (ko) |
WO (1) | WO2009124669A1 (ko) |
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NL2005332A (en) * | 2009-10-13 | 2011-04-14 | Asml Netherlands Bv | Inspection method and apparatus. |
KR102003326B1 (ko) * | 2011-08-01 | 2019-07-24 | 노바 메주어링 인스트루먼츠 엘티디. | 패턴처리 구조의 측정치 확인용 모니터링 시스템 및 방법 |
JP6002480B2 (ja) * | 2012-07-06 | 2016-10-05 | 株式会社日立ハイテクノロジーズ | オーバーレイ誤差測定装置、及びパターン測定をコンピューターに実行させるコンピュータープログラム |
US9512985B2 (en) | 2013-02-22 | 2016-12-06 | Kla-Tencor Corporation | Systems for providing illumination in optical metrology |
CN104570616B (zh) * | 2013-10-29 | 2017-06-27 | 上海微电子装备有限公司 | 一种自参考散射测量装置及方法 |
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