Coating processes – Immersion or partial immersion
Patent
1988-08-04
1990-01-09
Beck, Shrive
Coating processes
Immersion or partial immersion
118429, 134 57R, 134 60, B05D 118
Patent
active
048927619
ABSTRACT:
Time periods required for dipping semiconductor wafers in a treatment liquid in a treatment bath and for replacing the treatment liquid etc. are previously stored in a memory. Based on these data, the expected clock time when the semiconductor wafers reach each treatment bath is calculated and the replacement of the treatment liquid and transporation of the wafers are controlled on the basis of these data and the expected clock time.
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Bashore Alain
Beck Shrive
Dainippon Screen Mfg. Co,. Ltd.
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