Method for calibrating a force constant of a motorized stage used for supporting and moving a workpiece

Methods are disclosed for calibrating a force constant of a movable stage. In an exemplary method, in first and second preliminary pre-stepping motions of the stage, a baseline force and a calibration force, respectively, as exerted by the stage are measured. From a force-variation ratio of the base...

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1. Verfasser: YANG PAI-HSUEH
Format: Patent
Sprache:eng
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