Patent ID: 11862498
Assignee: BROOKS AUTOMATION US, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 17:
18. The linear electrical machine of claim 1, wherein the controller controls the levitation forces, generated by the array of electromagnets, so as to:
impart differential levitation forces across the reaction platen that effect a controlled inclination of the reaction platen, relative to the drive plane, that controls a predetermined reaction platen attitude in at least one of reaction platen pitch and reaction platen roll; or
effect a predetermined bias attitude of the reaction platen, relative to the drive plane, that imparts a bias reaction force, from a reaction platen payload seating surface on a payload supported by the reaction platen seating surface, in a direction countering payload inertial force arising from acceleration of the reaction platen along the drive plane.