Patent ID: 6271606
Filing Date: 2001-08-07
Classification: G03F,H02K,Y10S

Abstract:
A stage assembly for moving an object, the stage assembly comprising:a first motor including a first component and a second component and generating a force that causes relative movement between the first component and the second component, wherein one of the components includes a pair of spaced apart, magnet arrays, each magnet array including at least one magnet, and the other component includes at least one conductor that is positioned between the magnet arrays, the at least one conductor cooperating with the magnet arrays to generate the force;a stage member connected to the second component, the stage member retaining the object; anda chamber enclosing the second component and the stage member, the chamber including a first wall interposed between at least a portion of the first component and a portion of the second component of the first motor.