Integrated multi-pass inspection
Abstract:
Methods and systems for integrated multi-pass reticle inspection are provided. One method for inspecting a reticle includes acquiring at least first, second, and third images for the reticle. The first image is a substantially high resolution image of light transmitted by the reticle. The second image is a substantially high resolution image of light reflected from the reticle. The third image is an image of light transmitted by the reticle that is acquired with a substantially low numerical aperture. The method also includes detecting defects on the reticle using at least the first, second, and third images for the reticle in combination.
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