Patent ID: 6917046
Filing Date: 2005-07-12
Classification: H01J

Abstract:
1. A positioning apparatus comprising: a first stage, capable of moving in a first direction and a second direction which is orthogonal to the first direction; a second stage, arranged on said first stage and moved with said first stage, and capable of moving in the first direction and the second direction and capable of mounting an object to be adjusted in a position and a rotation; and a driving mechanism, arranged on said first stage, and for moving said second stage relative to said first stage, wherein said driving mechanism includes: a first electromagnet which generates first suction power; a second electromagnet, provided opposite to and away from said first electromagnet, which generates second suction power; and a core member, which is held movable between said first and second electromagnets, and moves by being pulled in accordance with the first and/or second suction power.