An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Every artifact measurement standard has some uncertainty associated with its calibration, and the NIST Photomask Linewidth Standards are no exception. This...
This paper presents a bottom up introduction to process modeling requirements for product realization which should drive new methods and computer tools. Though...
A novel design for an ultraviolet critical dimension measurement transmission microscope utilizing the Stewart platform as the rigid main structure has been...
J Schneir, T Mcwaid, Ronald G. Dixson, V W. Tsai, John S. Villarrubia, Edwin R. Williams, E Fu
NIST personnel visited 23 IC manufacturing companies and equipment suppliers during 1994 to determine semiconductor industry needs for scanned probe metrology...
Richard M. Silver, James E. Potzick, Robert D. Larrabee
The relative misalignment of features produced by different mask levels (i.e., overlay error) is projected to become an increasingly important problem to the...
Walter J. Rossiter Jr, Walter E. Byrd, Willard E. Roberts, Dawn M. Bailey
The U.S. Army Construction Engineering Research (CERL) has been investigating the development of a test methodology for evaluating the service life of roofing...
William M. Pitts, Nelson P. Bryner, Erik L. Johnsson
The findings of an extensive series of over 140 natural gas fires in a 2/5ths-scale model of a standard room have been previously reported. The current work...
Y. R. Sivathanu, Anthony Hamins, Robert Hagwood, Takashi Kashiwagi
Deconvolution of local properties from line-of-sight measurements is important in a wide variety of applications such as x-ray tomography, nuclear magnetic...
Research is being conducted to describe the characteristics of an improved fire detector which promptly reacts to smoke while discriminating between smoke and...
In most engineering design processes, there are three major phases of design: functional, conceptual, and detailed design (Gui94). However, most current...
Coordinate measuring systems (CMSs) determine dimensional (length) characteristics of mechanical parts by analyzing 3-dimensional point data acquired on part...
The objective of this study was to evaluate the ability of sprinkler activation models to predict activation time. Large scale compartment fire tests were used...
The Real-time Control System (RCS) architecture developed at NIST and elsewhere over the past two decades [1] defines a canonical form for a nested intelligent...