SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD
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United States of America Patent
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app pub date -
Oct 2, 2014
filing date -
Jan 30, 2006
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Abandoned
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Abstract
A substrate processing apparatus of the present invention comprises a cooling mechanism for cooling a processing solution and a filter for removing impurities contained in the processing solution, at some midpoint in a circulation path of the processing solution. With this constitution, the substrate processing apparatus can precipitate the impurities dissolved in the processing solution and remove the precipitated impurities. It therefore becomes possible to maintain the performance of the processing solution and reuse the processing solution. Further, the frequency of changing the processing solution to a new solution decreases, and this causes an increase in availability of the substrate processing apparatus and a decrease in consumption and drainage of the processing solution.
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