Optics: measuring and testing – Inspection of flaws or impurities – Surface condition
Reexamination Certificate
2006-02-14
2006-02-14
Pham, Hoa Q. (Department: 2877)
Optics: measuring and testing
Inspection of flaws or impurities
Surface condition
C356S237500, C700S121000
Reexamination Certificate
active
06999164
ABSTRACT:
Systems and methods are disclosed for measuring semiconductor wafers in a fabrication process using one or more of a plurality of measurement systems. A measurement system cluster is provided having a plurality of such measurement systems, along with a system for transferring wafers to one or more of the measurement systems according to one or more selection criteria. Measurement systems may be selected for use based on availability and throughput capabilities, whereby overall system throughput and efficiency may be improved within the required accuracy capabilities required for measuring process parameters associated with the wafers.
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Pham Hoa Q.
Stallman & Pollock LLP
Tokyo Electron Limited
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