Patent ID: 8054097

Claim:
A method of automatically managing probe mark shifts, the method comprising: determining from test data whether a die on a wafer is defective; performing, in response to a determination that the die is defective, a probe mark check on the wafer to determine whether a probe mark is shifted in a direction parallel to a top surface of the die; wherein performing a probe mark check on the wafer includes: selecting a plurality of probe mark positions from the test data; and determining if at least one of the plurality of probe mark positions violates an engineering rule; and automatically performing necessary recovery action in response to the probe mark being shifted, including performing a real-time offset optimization using the plurality of probe mark positions; wherein performing a real-time offset optimization using the plurality of probe mark positions includes: generating a target offset map from a target plurality of probe mark positions; and generating an actual offset map from the plurality of probe mark positions.