MAGNETIC SENSOR CALIBRATION AND SERVO FOR PLANAR MOTOR STAGE

A stage assembly for positioning a device includes: (i) a stage that retains the device; (ii) a base; (iii) a mover assembly that moves the stage along a first axis, along a second axis, and along a third axis relative to the base; (iv) a magnetic sensor system that monitors the movement of the stag...

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Bibliographische Detailangaben
Hauptverfasser:	MAHADESWARASWAMY CHETAN, OGIWARA TSUTOMU, YANG PAI-HSUEH, BINNARD MICHAEL, WELLS J. KYLE
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CINEMATOGRAPHY CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY ELECTROGRAPHY GENERATION HOLOGRAPHY MATERIALS THEREFOR ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS
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Beschreibung
Zusammenfassung:	A stage assembly for positioning a device includes: (i) a stage that retains the device; (ii) a base; (iii) a mover assembly that moves the stage along a first axis, along a second axis, and along a third axis relative to the base; (iv) a magnetic sensor system that monitors the movement of the stage along the first, second and third axes, the magnetic sensor system generating a magnetic sensor signal; (v) a second sensor system that monitors the movement of the stage along the first, second and third axes, the second sensor system generating a second sensor signal; and (vi) a control system that controls the mover assembly using at least one of the magnetic sensor signal and the second sensor signal.