Semiconductor device manufacturing: process – Chemical etching
Reexamination Certificate
2006-12-05
2006-12-05
Le, Thao P. (Department: 2818)
Semiconductor device manufacturing: process
Chemical etching
C414S217000, C219S388000, C256S013000, C438S908000, C438S907000
Reexamination Certificate
active
07144813
ABSTRACT:
An apparatus for thermally processing a microelectronic workpiece is provided. The apparatus comprises a rotatable carousel assembly configured to support at least one workpiece. A driver is coupled to the carousel assembly and rotates the carousel assembly, moving the workpiece between a loading station, a heating station and a cooling station. The loading, heating and cooling stations are radially positioned and approximately equally spaced about a center axis of the carousel assembly. The heating station includes a heating element and an actuator for moving the heating element into thermal engagement with the workpiece in the heating station. The cooling station includes a cooling element and an actuator for moving the cooling element into thermal engagement with the workpiece in the cooling station. A process fluid distribution manifold for delivering process fluid to the workpieces at each station extends through a central opening in the carousel assembly. A non-oxidizing gas is delivered through the manifold to create an oxygen free environment during the thermal process.
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Davis Jeffry Alan
Wirth Paul Zachary
Le Thao P.
Perkins Coie LLP
Semitool Inc.
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