Formfactor, Inc.

Sun Yalei

Uday G Nayak

Richard James Casler, Jr

Thomas Rohrs

Methods and apparatuses for modifying a stage position and measuring at least one parameter of a motor connected with a stage during a commanded stage position are described. In one embodiment of one aspect of the invention, the motor is configured to move the stage in a first direction in response to the at least one parameter and determine whether the at least one parameter is within a threshold range.

Compliance control methods and apparatuses

Methods and systems for, in one embodiment, accelerating a stage through a clearance height in a first direction and decelerating the stage in the first direction while accelerating in a second direction are shown. The stage is moved in a third direction and a determination is made whether the stage movement in the second direction is below a threshold value before continuing to move the stage further in the third direction. The first direction is perpendicular to the second direction and is parallel and opposite to the third direction.

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Singapore, Singapore

Sun Yalei