High throughput method of in transit wafer position...

Details High throughput method of in transit wafer position... High throughput method of in transit wafer position...

2007-11-30

2011-11-15

Trammell, James (Department: 3667)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Robot control

C700S217000, C700S218000, C700S245000, C700S249000, C700S250000, C414S217000, C414S222010, C414S416030, C414S416080, C414S744200, C901S002000, C901S006000, C901S008000, C901S009000, C901S014000, C318S568110, C318S568120, C318S568210, C118S715000, C118S719000, C118S729000, C356S614000

Reexamination Certificate

active

08060252

ABSTRACT:
Methods correcting wafer position error are provided. The methods involve measuring wafer position error on a robot, e.g. a dual side-by-side end effector robot, during transfer to an intermediate station. This measurement data is then used by a second robot to perform wafer pick moves from the intermediate station with corrections to center the wafer. Wafer position correction may be performed at only one location during the transfer process. Also provided are systems and apparatuses for transferring wafers using an intermediate station.

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