Patent ID: 6614201
Filing Date: 2003-09-02
Classification: B25J,H01L,Y10S

Abstract:
A substrate transfer system which transfers a substrate, comprising:a robot hand equipped with at least two end-effectors each having a surface for mounting the substrate; said end-effectors being placed such that said surface for mounting the substrate is along with a periphery of a cone having a vertical angle at 2&thgr; angle with respect to a central axis which is at an arbitrary &thgr; angle to a horizontal plane, and the end-effectors rotate along with the periphery of the cone pivoting on said central axis; and wherein changing over each of said end-effectors from one side to another in a horizontal position, interchanges on one same robot hand at least two substrates to be processed, and thereby allows simultaneous transfer of said at least two substrates.