This invention is an apparatus for imaging metrology, which in particular
embodiments may be integrated with a processor station such that a
metrology station is apart from but coupled to a process station. The
metrology station is provided with a first imaging camera with a first
field of view containing the measurement region. Alternate embodiments
include a second imaging camera with a second field of view. Preferred
embodiments comprise a broadband ultraviolet light source, although other
embodiments may have a visible or near infrared light source of broad or
narrow optical bandwidth. Embodiments including a broad bandwidth source
typically include a spectrograph, or an imaging spectrograph. Particular
embodiments may include curved, reflective optics or a measurement region
wetted by a liquid. In a typical embodiment, the metrology station and
the measurement region are configured to have 4 degrees of freedom of
movement relative to each other.