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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.

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.
New CD-ROM released by Journal of Research of the National Institute of Standards and Technology
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.
Nanometrics intros wireless version of NanoNet by EDP Weekly's IT Monitor
The Wyko optical metrology module (OMM) is available for in-situ metrology in high-volume production environments for OEM applications.
OEM optical metrology. (Instruments) by Rubber World
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