Patent ID: 8260461

Claim:
A method to recalibrate a robot, comprising: manually calibrating a center of a robot blade aligned with respect to a target, which is located in a process chamber; recording a first positional value of the center of the robot blade aligned with respect to a camera station based on the camera station capturing an image of the center of the robot blade in alignment with a center of the camera station during the calibration of the robot, wherein the camera station is remotely located from the robot blade while capturing the image; automatically determining a second positional value of the center of the robot blade aligned with respect to the camera station during a recalibration of the robot; and automatically recalibrating the robot blade based on an offset between the second positional value and the first positional value exceeding a tolerance offset from the first positional value, wherein the recalibration of the robot occurs automatically without opening the process chamber.