Data processing: measuring – calibrating – or testing – Measurement system – Performance or efficiency evaluation
Reexamination Certificate
2006-03-28
2006-03-28
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Performance or efficiency evaluation
C250S492220, C714S724000
Reexamination Certificate
active
07020582
ABSTRACT:
Systems and methods are provided for marking integrated circuit defects on wafers to facilitate failure analysis. A wafer containing integrated circuits can be tested using a tester. Test data from the tester can be analyzed using integrated circuit design files to identify suspected faults. A fault location program can be used to identify the physical location of the faults. The fault location program uses information on the faults identified and CAD file information on the physical layout of the integrated circuit to map identified faults to actual physical positions. The fault location program may also generate laser control files. The laser control files can be used to control a laser system so that the laser system creates laser marks on the wafer surrounding each of the faults. The marked faults can be polished and examined under an electron microscope or analyzed using other failure analysis tools.
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Banke Mark A.
Dicosola John M.
Hata William
Lei Junzhao J.
Wright Adam
Altera Corporation
Le John H.
Nghiem Michael
Treyz G. Victor
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