Patent ID: 6777833
Filing Date: 2004-08-17
Classification: H02K,H02N

Abstract:
A magnetic levitation (maglev) stage apparatus, comprising:a platen having an upper surface capable of supporting a workpiece; a set of magnet arrays arranged on a bottom surface of the platen; first and second side magnet arrays arranged on respective opposite first and second sides of the platen; a support frame at least partially surrounding the platen on the first and second sides and the bottom surface; a plurality of motor coils arranged on the support frame so as to be in operable communication with the set of magnet arrays and the first and second side magnet arrays; and wherein the set of magnet arrays and first and second side magnet arrays and the plurality of motor coils are operable to magnetically levitate the platen within the support frame and move the platen in up to six degrees of freedom (DOF).