Overlay is one of the most critical process control steps of semiconductor manufacturing technology. A typical advanced scheme includes an overlay feedback loop based on after litho optical imaging ...

Optical metrology involves using light to set the standards of measurement. More generally, it can be defined as the science of measuring with light. Under this broader definition, it could include ...

General discussion in the metrology field tends to revolve around the relative merits of non-contact or contact measurement solutions. However, demand now exists in almost every industry for more ...

Optical metrology is the science and technology of making measurements with use of light as standards or information carriers. Although optical metrology is a rapidly growing area, it is not a new ...

FREMONT, Calif.–Therma-Wave Inc. today announced the first critical dimension (CD) metrology tool that combines spectroscopic ellipsometry technology for high levels of optical measurement with ...

Starrett announced the introduction of a new horizontal digital video projector to its range of metrology equipment. The HDV500 Digital Video Projector is a further evolution of Starrett’s existing ...

A new method significantly advances 3D imaging of reflective surfaces. The approach integrates techniques known from high-precision optical 3D metrology and computer vision, and could benefit ...

Even aircraft manufacturing now makes extensive use of metrological measurements for quality control – though making and verifying measurements at this large scale poses its own set of challenges. 1 ...

Scientists have developed a methodology for assessing the surface topography of 3D-printed layers using optical metrology. The method ensures the quality of parts printed with additive manufacturing ...

Optical metrology is the science and technology concerning measurements using light. These measurements may focus on the properties of light itself or other properties such as distance. Global optics ...

Accurate and robust 3D imaging of specular, or mirror-like, surfaces is crucial in fields such as industrial inspection, medical imaging, virtual reality, and cultural heritage preservation. Yet ...