Patent ID: 6768332
Filing Date: 2004-07-27
Classification: G01R

Abstract:
A testing method comprising the steps of:providing a diced wafer comprising at least a first area and a second area, wherein both the first area and the second area include at least two fiducial marks and an array of dice each having a plurality of electrical contacts; providing a prober having a plurality of interconnect contacts; searching the at least two fiducial marks in the first area of the wafer and obtaining all coordinates of the dice within the first area of the wafer by a pattern recognition system; placing the interconnect contacts of the prober in electrical communication with the electrical contacts of the dice of the first area according to the coordinates of the dice within the first area; searching the at least two fiducial marks in the second area of the wafer and obtaining all coordinates of the dice of the second area of the wafer by the pattern recognition system; and placing the interconnect contacts of the prober in electrical communication with the electrical contacts of the dice of the second area according to the coordinates of the dice within the second area.