Patent ID: 8354908

Claim:
A cylindrical magnetic levitation stage comprising: a cylindrical substrate; a first cylindrical substrate holder and a second cylindrical substrate holder coupled to both ends of the cylindrical substrate; a first mover and a second mover to which a first permanent magnet array and a second permanent magnet array are coupled, respectively; a first coupling section and a second coupling section for connecting the first and second movers to the first and second cylindrical substrate holders, respectively, so as to allow the first mover and the first cylindrical substrate holder to be operated in cooperation with each other and the second mover and the second cylindrical substrate holder to be operated in cooperation with each other; and a first stator and a second stator disposed below the first permanent magnet array and the second permanent magnet array, respectively, with a first coil array and a second coil array interposed between the first and second permanent magnet arrays and the first and second stators, respectively.