Photolithography reticle stage drive system
AssigneeMassachusetts Institute of Technology
InventorsCharles Byron Seaberg, David L. Trumper
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AssigneeMassachusetts Institute of Technology
InventorsCharles Byron Seaberg, David L. Trumper
Estimating the term…
A reticle stage for a photolithography scanner is disclosed having a direct-drive ironless linear motor to actuate a short-stroke stage during a turnaround operation. The reticle stage may include a long stroke stage, an array of permanent magnets coupled to a beam, and at least one conductive coil mounted to the short-stroke stage without a ferromagnetic core. The beam may pass through the short-stroke stage and be coupled to one of the long-stroke stage or a balance mass, both of which may be disposed about the perimeter of the short-stroke stage. An electrical current applied to the coil may interact with the magnetic field from the permanent magnets to provide a force on the short-stroke stage.
A reticle stage system configured to support a photolithography reticle, the reticle stage system comprising:
A system comprising:
A system comprising:
Dependencies are inferred from the claim text.