Gas separation: apparatus – Solid sorbent apparatus – Plural diverse separating means
Reexamination Certificate
2008-01-29
2008-01-29
Lawrence, Frank M. (Department: 1724)
Gas separation: apparatus
Solid sorbent apparatus
Plural diverse separating means
C096S142000
Reexamination Certificate
active
07323042
ABSTRACT:
An apparatus and method for abating toxic and/or hazardous gas species in a diluent gas stream line deriving from a by-pass line of a semiconductor process tool, comprising contacting the diluent gas stream with a dry resin sorbent material having an affinity for the toxic and/or hazardous gas species to effect the removal of at least a portion of the toxic and/or hazardous gas species by a chemisorbent or physisorbent reaction between the sorbent bed and the toxic gas component effectively reduces the concentration of the toxic gas component in the process diluent stream to below TLV.
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Semiconductor Environmental, Safety and Health Association Emerging Technologies Miniconference in Phoenix, AZ, Sep. 19, 2003.
Applied Materials Inc.
Dugan & Dugan
Lawrence Frank M.
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