Patent ID: 7168911
Filing Date: 2007-01-30
Classification: H01L

Abstract:
1. A robot assembly for transferring thin, flat substrates between a first chamber and a hotter second chamber, comprising: a first robot arm having a supported end and a free end, said arm having a primary location for supporting a substrate on the free end and a secondary location for supporting a substrate between the free end and the supported end so that two substrates can be supported on the first arm at the same time; said arm being mounted for linear movement from a retracted position to an extended position for moving a substrate into and out of said first chamber; and a second robot arm having a supported end and a free end, said second arm having a Bernoulli end effector on its free end, said second arm being mounted for linear movement from a retracted position to an extended position for moving a substrate into and out of the second chamber, said second arm being positioned above said first arm with the supported end of the second arm being substantially directly above the supported end of the first arm when the arms are in their retracted positions; said arms being rotatable as a unit to be aligned with an entry to either the first chamber or the second chamber; and said arms being movable so that the Bernoulli end effector is directly above said first robot arm primary or secondary locations to enable a substrate positioned on either location to be lifted or released by the Bernoulli end effector, and said arms being movable so that a substrate may be removed from the second chamber and placed on said first arm while a second substrate is on the first arm in position to be transferred into the second chamber by the second arm.