SUBSTRATE PROCESSING APPARATUS AND PROCESSING LIQUID CONCENTRATION METHOD

A substrate processing device and method for concentrating a processing liquid may efficiently concentrate a phosphoric acid aqueous solution as a raw material for a phosphoric acid processing liquid to desired concentration. According to one aspect of the present disclosure, the substrate processin...

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Main Authors OGURA KOUJI, TANAKA KOJI, TSURUSAKI KOTARO, HIRASE KEITA, KANAGAWA KOUZOU, ARATAKE HIDEMASA, KURODA OSAMU, KONISHI TERUAKI
Format Patent
LanguageEnglish
Korean
Published 22.06.2020
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Summary:A substrate processing device and method for concentrating a processing liquid may efficiently concentrate a phosphoric acid aqueous solution as a raw material for a phosphoric acid processing liquid to desired concentration. According to one aspect of the present disclosure, the substrate processing device comprises: a processing unit processing a substrate with a processing liquid; and a processing liquid generation unit generating the processing liquid supplied to the processing unit. The processing liquid generation unit has a storage unit, a circulation line, a heating unit, and a nozzle. The storage unit stores the processing liquid. The circulation line circulates the processing liquid stored in the storage unit. The heating unit heats the processing liquid. The nozzle is provided at lower side of the circulation line, and the nozzle has a discharge port for discharging the processing liquid heated in the heating unit from top of the surface of the processing liquid stored in the storage unit. 인산 처리액의 원료로 되는 인산 수용액을 원하는 농도로 효율적으로 농축시킬 수 있다. 본 개시의 일 양태에 따른 기판 처리 장치는, 처리액으로 기판을 처리하는 처리부와, 처리부에 공급하는 처리액을 생성하는 처리액 생성부를 구비한다. 처리액 생성부는, 저류부와, 순환 라인과, 가열부와, 노즐을 갖는다. 저류부는, 처리액을 저류한다. 순환 라인은, 저류부에 저류되는 처리액을 순환시킨다. 가열부는, 처리액을 가열한다. 노즐은, 순환 라인의 하류측에 마련되고, 저류부에 저류되는 처리액의 액면 상방으로부터 가열부에서 가열된 처리액을 토출하는 토출구를 갖는다.
Bibliography:Application Number: KR20190163528