KR20210054557A - 기판 처리 방법 및 기판 처리 장치 - Google Patents
기판 처리 방법 및 기판 처리 장치 Download PDFInfo
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Abstract
Description
도 2는, 처리 유닛의 구성의 개략적인 일례를 나타내는 평면도이다.
도 3은, 처리 유닛의 구성의 개략적인 일례를 나타내는 단면도이다.
도 4는, 카메라에 의해 취득된 촬상 화상의 일례를 개략적으로 나타내는 도면이다.
도 5는, 카메라와 카메라 유지부의 구성의 일례를 개략적으로 나타내는 사시도이다.
도 6은, 기판 처리의 일례를 나타내는 플로차트이다.
도 7은, 감시 처리의 일례를 나타내는 플로차트이다.
도 8은, 촬상 화상의 일부를 확대한 도면이다.
도 9는, 2치화 화상의 일례를 개략적으로 나타내는 도면이다.
도 10은, 처리 유닛의 구성의 개략적인 일례를 나타내는 평면도이다.
도 11은, 처리 유닛의 구성의 개략적인 일례를 나타내는 평면도이다.
도 12는, 제어부의 내부 구성의 일례를 개략적으로 나타내는 기능 블록도이다.
31 : 노즐(토출 노즐) 33 : 이동 기구
40 : 컵 부재(처리 컵) 44 : 승강 기구
70 : 카메라 91 : 분류기
93 : 알림부 100 : 기판 처리 장치
W : 기판
Claims (10)
- 기판 유지부에 기판을 유지시키는 유지 공정과,
상기 기판 유지부를 회전시켜, 상기 기판을 회전시키는 회전 공정과,
상기 기판 유지부의 외주를 둘러싸는 컵 부재를 상승시켜, 상기 컵 부재의 상단을, 상기 기판 유지부에 유지된 상기 기판의 상면보다 높은 상단 위치에 위치시키는 상승 공정과,
상기 상단 위치보다 낮은 위치에 있는 노즐의 토출구로부터, 상기 기판 유지부에 유지된 상기 기판의 상면의 단부로, 처리액을 토출하는 베벨 처리 공정과,
상기 노즐의 상기 토출구로부터 토출되는 처리액과, 상기 기판의 상면에 비치는 상기 처리액인 거울상을 포함하는 촬상 영역이며, 상기 기판 유지부에 유지된 상기 기판의 상방의 촬상 위치에서 본 촬상 영역을, 카메라로 하여금 촬상하게 해, 촬상 화상을 취득하는 촬상 공정과,
상기 촬상 화상에 있어서의 상기 처리액과 상기 거울상에 의거하여, 상기 처리액의 착액 위치를 감시하는 감시 공정
을 구비하는, 기판 처리 방법. - 청구항 1에 있어서,
상기 촬상 화상에 있어서, 상기 처리액 및 상기 거울상을 포함하는 전체 상이 상기 처리액과 상기 거울상의 경계에 있어서 굴곡되어 있고,
상기 감시 공정에 있어서는, 상기 처리액의 상기 전체 상의 굴곡 위치에 의거하여 상기 착액 위치를 구하는, 기판 처리 방법. - 청구항 2에 있어서,
상기 감시 공정에 있어서,
상기 촬상 화상에 대해 에지 검출 처리 및 2치화 처리를 행하여 얻어진 2치화 화상으로부터, 상기 처리액의 토출 방향을 따라 연장되는 제1 직선 성분과, 상기 거울상의 토출 방향을 따라 연장되는 제2 직선 성분을 검출하고, 상기 제1 직선 성분과 상기 제2 직선 성분의 교점을 상기 굴곡 위치로서 구하는, 기판 처리 방법. - 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,
상기 카메라의 노광 시간은 기판이 1회전하는 데 필요로 하는 시간 이상으로 설정되는, 기판 처리 방법. - 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,
기판이 1회전하는 데 필요로 하는 시간 이상의 시간 내에 상기 카메라에 의해 취득된 복수의 촬상 화상을 적분 또는 평균하여 얻어진 촬상 화상에 있어서의 상기 전체 상에 의거하여, 상기 착액 위치를 구하는, 기판 처리 방법. - 청구항 1 내지 청구항 5 중 어느 한 항에 있어서,
상기 감시 공정에 있어서는,
상기 촬상 화상에 있어서의 상기 기판의 주연(周緣)의 위치를 특정하고,
상기 기판의 주연의 위치를 기준으로 한 상기 처리액의 상기 착액 위치를 구하는, 기판 처리 방법. - 청구항 1 내지 청구항 6 중 어느 한 항에 있어서,
상기 감시 공정은,
구한 상기 착액 위치가 소정의 범위 내에 없을 때에, 그 취지를 알림부로 하여금 알리게 하는 공정을 포함하는, 기판 처리 방법. - 청구항 1 내지 청구항 7 중 어느 한 항에 있어서,
상기 감시 공정에 있어서,
기계 학습이 끝난 분류기에 의해, 상기 촬상 화상을, 착액 위치의 이상 없음의 카테고리, 및, 착액 위치의 이상 있음의 카테고리 중 어느 한쪽으로 분류하는, 기판 처리 방법. - 청구항 8에 있어서,
상기 감시 공정에 있어서,
상기 촬상 화상으로부터, 상기 노즐의 바로 아래에 위치하며, 상기 처리액 및 상기 거울상을 포함하는 영역을 잘라내고, 잘라낸 영역의 화상을 상기 분류기에 입력하는, 기판 처리 방법. - 기판을 유지하고, 상기 기판을 회전시키는 기판 유지부와,
상기 기판 유지부의 외주를 둘러싸는 컵 부재와,
상기 컵 부재를 상승시켜, 상기 컵 부재의 상단을, 상기 기판 유지부에 유지된 상기 기판의 상면보다 높은 상단 위치에 위치시키는 승강 기구와,
상기 상단 위치보다 낮은 위치에 있는 토출구를 갖고, 상기 토출구로부터, 상기 기판 유지부에 유지된 상기 기판의 상면의 단부로, 처리액을 토출하는 노즐과,
상기 노즐의 상기 토출구로부터 토출되는 처리액과, 상기 기판의 상면에 비치는 상기 처리액인 거울상을 포함하는 촬상 영역이며, 상기 기판 유지부에 유지된 상기 기판의 상방의 촬상 위치에서 본 촬상 영역을, 카메라로 하여금 촬상하게 해, 촬상 화상을 취득하는 카메라와,
상기 촬상 화상에 있어서의 상기 처리액과 상기 거울상에 의거하여, 상기 처리액의 착액 위치를 감시하는 화상 처리부
를 구비하는, 기판 처리 장치.
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