SUBSTRATE PROCESSING APPARATUS AND CLEANING TOOL

PROBLEM TO BE SOLVED: To provide a cleaning process technology capable of suppressing unintended liquid splashing of a cleaning liquid.SOLUTION: A cleaning tool CT instead of a normal substrate is attached on a spin chuck 20. The cleaning tool CT comprises a flat base surface 71 and an inclined surf...

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Bibliographic Details
Main Authors HIGUCHI AYUMI, TAKAHASHI MITSUKAZU, YOSHIZUMI ASUKA
Format Patent
LanguageEnglish
Japanese
Published 12.03.2015
Subjects
Online AccessGet full text

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Summary:PROBLEM TO BE SOLVED: To provide a cleaning process technology capable of suppressing unintended liquid splashing of a cleaning liquid.SOLUTION: A cleaning tool CT instead of a normal substrate is attached on a spin chuck 20. The cleaning tool CT comprises a flat base surface 71 and an inclined surface 72 which is disposed throughout the whole periphery of the peripheral edge of the base surface 71, inclining upward toward the outer periphery from the center of the base surface 71. A cleaning liquid is supplied in the vicinity of the center of the base surface 71 from a discharge head 31 while rotating the cleaning tool CT. The cleaning liquid flows toward the outer periphery from the center of the cleaning tool CT by centrifugal force and is splashed obliquely upward from the inclined surface 72. As the base surface 71 and the inclined surface 72 make a continuous surface over the whole periphery of the peripheral edge of the base surface 71, the cleaning liquid supplied to the base surface 71 is smoothly guided to the inclined surface 72; therefore, the cleaning liquid can be splashed obliquely upward while suppressing unintended liquid splashes. 【課題】意図しない洗浄液の液はねを抑制することができる洗浄処理技術を提供する。【解決手段】スピンチャック20には、通常の基板に代えて洗浄用治具CTが装着される。洗浄用治具CTは、平坦なベース面71と、そのベース面71の周縁部の全周にわたって設けられ、ベース面71の中心から外周に向けて上方に傾斜する傾斜面72と、を備える。洗浄用治具CTを回転させつつ、ベース面71の中心近傍に吐出ヘッド31から洗浄液を供給する。洗浄液は遠心力によって洗浄用治具CTの中心から外周に向けて流れ、傾斜面72から斜め上方に向けて飛散される。ベース面71の周縁部全周にわたってベース面71と傾斜面72とが連続した面となっているため、ベース面71に供給された洗浄液が円滑に傾斜面72へと導かれることとなり、意図しない洗浄液の液はねを抑制しつつ、洗浄液を斜め上方に向けて飛散させることができる。【選択図】図5
Bibliography:Application Number: JP20130176310