Cleaning and liquid contact with solids – Apparatus – With plural means for supplying or applying different fluids...
Reexamination Certificate
2007-08-14
2007-08-14
Barr, Michael (Department: 1746)
Cleaning and liquid contact with solids
Apparatus
With plural means for supplying or applying different fluids...
C134S095200, C134S095300, C134S184000, C134S186000, C134S200000, C134S902000
Reexamination Certificate
active
10410278
ABSTRACT:
An apparatus for cleaning semiconductor wafers includes a chamber, a bubbler having a vapor generating part for generating alcohol vapor and a spray pipe for spraying the alcohol vapor into the chamber, a gas supply nozzle for spraying gas into the chamber to dry the wafers, a liquid supply nozzle for supplying cleaning liquid into the chamber and a discharge system. The spray pipe of the bubbler has a liquid retention portion that keeps condensate of the alcohol vapor from issuing into the chamber. The gas supply nozzle has a spray outlet configured to spray the same amount of the drying gas onto all of the wafers in the chamber. The liquid supply nozzle has liquid supply openings only in a side portion thereof so that liquid alcohol will not become trapped therein.
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Ahn Duk-Min
Kwon Young-Min
Myoung Young-Kwang
Nam Chang-Hyeon
Park Sang-Oh
Barr Michael
Husband Sarah E.
Volentine & Whitt PLLC
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