摘要:
A linear motor having a high driving force, high efficiency and low normal force comprises two opposed magnet tracks 11, 12 and an armature 13 comprising three open coil sets. The linear motor may be used to drive a stage, particularly the mask stage, in a lithographic projection apparatus.
摘要:
A linear motor having a high driving force, high efficiency and low normal force comprises two opposed magnet tracks 11, 12 and an armature 13 comprising three open coil sets. The linear motor may be used to drive a stage, particularly the mask stage, in a lithographic projection apparatus.