Patent ID: 11953836
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 19:
20. A reticle transportation system further comprising:
a transportation stage drive system;
a reticle transportation stage capable of being magnetically levitate and moved by said transportation stage drive system; and
a transportation stage controller coupled to said transportation stage drive system wherein in response to signals provided thereto from said transportation stage controller, said transportation stage drive system moves said reticle transportation stage; and
a pair of linear slice motors arranged on opposing sides of the reticle transportation stage, each linear slice motor comprising:
a primary provided from a pair of stator segments;
a permanent magnet disposed between the pair of stator segments; and
a motor secondary provided as part of the reticle transportation stage.