Cleaning and liquid contact with solids – Apparatus – With treating fluid purifying or separating means
Patent
1991-02-08
1992-10-13
Stinson, Frankie L.
Cleaning and liquid contact with solids
Apparatus
With treating fluid purifying or separating means
134153, 134157, 134200, 134155, B08B 302
Patent
active
051541998
ABSTRACT:
Rinser dryer system for rising process chemical from silicon or gallium arsenide wafers, substrates, masks or disks and drying of silicon or gallium arsenide wafers, substrates, masks or disks positioned in a wafer cassette. A wafer cassette is positioned in a rotor assembly and the rotor assembly positioned within a removable heated chamber bowl. The wafer cassette rotates past rising and drying manifold nozzles. The removable chamber bowl is secured to a rinser mounting plate by quick disconnect hardware for removal and for external cleansing. A broken chip collector in a lower portion of an exhaust manifold assembly removes small broken chip remains. An acidity sensor is positioned in a bottom portion of the exhaust manifold assembly for monitoring rinse effluent during the rising process. A gated exhaust valve in an exhaust gas manifold of the exhaust manifold assembly provides for gases to exhaust to an external location. A computer controls cycling of the process modes as the silicon or gallium arsenide wafers, substrates, masks or disks are sprayed, washed, rinsed, and dried.
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Owczarz Aleksander
Thompson Raymon F.
Semitool Inc.
Stinson Frankie L.
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