Measurement of test object with stacked features

An apparatus and associated method for measuring spatial characteristics of a test object with stacked features. First and second measurement assemblies for measuring opposing first and second planar features, respectively, of a test object, by directing light beams into a gap between the features t...

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Bibliographische Detailangaben
Hauptverfasser: Smith, Ronald Jacob, Gerogeorge, John George, Nayar, Sham Sunder, Fahrendorff, Mark Curtis, Silewski, Shawn Stephen
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An apparatus and associated method for measuring spatial characteristics of a test object with stacked features. First and second measurement assemblies for measuring opposing first and second planar features, respectively, of a test object, by directing light beams into a gap between the features to measure a position and a static attitude of each feature.