Coating apparatus – Work holders – or handling devices
Patent
1995-03-29
1997-07-29
Snay, Jeffrey
Coating apparatus
Work holders, or handling devices
118503, 414225, 414416, 414940, 396624, B65G 2500
Patent
active
056518234
ABSTRACT:
A substrate photolithography system includes a substrate handling robot which pivots about a fixed point and transfers substrates between photoresist coater, a developer, and a heating/cooling unit, all of which are clustered about the robot. The end effector of the robot is capable of both vertical and lateral movement so that individual modules of the heating/cooling unit may be stacked. An apparatus and a method for baking and cooling silicon substrates are disclosed. Both baking and cooling of silicon substrates are done in a single integrated thermal process module. Each thermal process module includes two hot plate assemblies, a cool plate assembly, two local linear transfer arms and a micro-processor based module controller. Both transfer arms are capable of transferring substrates among the cool and hot plate assemblies. A cassette input/output unit handles cassettes which contain semiconductor wafers or other substrates that are to be delivered to or withdrawn from a semiconductor processing system. The input/output unit includes a drawer front which rotates 90.degree. about a horizontal axis as it is opened.
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Anderson H. Alexander
Biche Michael R.
Lurye Alexander
Parodi Michael L.
Semiconductor Systems, Inc.
Snay Jeffrey
Steuber David E.
Suryadevara Omkar K.
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