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metrology

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metrology

Science of measurement. Measuring a quantity means establishing its ratio to another fixed quantity of the same kind, known as the unit of that kind of quantity. A unit is an abstract idea, defined either by reference to a randomly chosen material standard or to a natural phenomenon. For example, the metre, the standard of length in the metric system, was formerly defined (1889–1960) by the separation of two lines on a particular metal bar, but it is now defined as the distance traveled by light in a vacuum in 1/299,792,458 second. See also International System of Units.


metrology

The science of weights and measures. Metrology is an important part of semiconductor manufacturing where high-resolution tools are required to measure the tiny elements in a chip that continue to decrease year after year.



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Created by NIST staff and contractors, the CD-ROM represents the culmination of a 3 year effort to provide an interactive, multimedia supplement/reinforcement for a basic mass metrology seminar.
The system integrates seamlessly into existing fab networks as a wireless overlay or standalone wireless network for NanoNet, a proprietary software networking technology for integrated and standalone metrology systems.
The Wyko optical metrology module (OMM) is available for in-situ metrology in high-volume production environments for OEM applications.
 
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