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You searched on: Author: jon pratt

Displaying records 51 to 60 of 87 records.
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51. Development of Traceable Small Force Standards
Published: 6/1/2005
Authors: Gordon Allan Shaw, Jon Robert Pratt
Abstract: Although instrumented indentation and atomic forcve microscope (AFM) are utilized extensively for the measurement of forces in the piconewton to millinewton regime, accurate calibration of these forces remains an obstacle to quantitative research. D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822278

52. Metrologies for Quantitative Nanomechanical Testing and Quality Control in Semiconductor Manufacturing
Published: 2/1/2005
Authors: Jon Robert Pratt, John A Kramar, David B Newell, Douglas T Smith
Abstract: If nanomechanical testing is to evolve into a tool for process and quality control in semiconductor fabrication, great advances in throughout, repeatability, and accuracy of the associated instruments and measurements will be required. A recent gran ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822080

53. Realizing and Disseminating the SI Micronewton With the Next Generation NIST Electrostatic Force Balance
Published: 10/1/2004
Authors: Richard Seugling, David B Newell, John A Kramar, Jon Robert Pratt
Abstract: The NIST Electrostatic Force Balance (EFB) compares deadweight and mechanical probe forces to an SI realization of force derived from measurements of the capacitance gradient and voltage in an electronic null balance. In the following abstract, we br ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822393

54. Traceable Force Metrology for Micronewton Level Calibration
Published: 10/1/2004
Authors: Jon Robert Pratt, Richard Seugling
Abstract: The research presented in this abstract concerns the calibration and implementation of a prototype secondary force standard to disseminate the SI (Syst?me International d''unit?s) unit of force ranging from 5.0 mN to 5.0 mN. The elastic-force measuri ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822220

55. Progress Towards SI Traceable Force Metrology for Nanomechanics
Published: 1/1/2004
Authors: David B Newell, Eric Paul Whitenton, John A Kramar, Jon Robert Pratt, Douglas T Smith
Abstract: This paper is based, in its entirety, on NIST-approved publications: Calibration of Piezoresistive Cantilever Force Sensors Using the NIST Electrostatic Force Balance, The NIST Electrostatic Force Balance Experiment, The NIST Microforce Realization a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822096

56. Progress Towards Systeme International d'Unites Traceable Force Metrology for Nanomechanics
Published: 1/1/2004
Authors: Jon Robert Pratt, Douglas T Smith, David B Newell, John A Kramar, Eric Paul Whitenton
Abstract: Recent experiments with the National Institute of Standards and Technology (NIST) Electrostatic Force Balance (EFB) have achieved agreement between an electrostatic force and a gravitational force of 10^(-5) N to within a few hundred pN/¿N. This resu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822394

57. Calibration of Piezoresistive Cantilever Force Sensors Using the NIST Electrostatic Force Balance
Published: 11/16/2003
Authors: Jon Robert Pratt, David B Newell, John A Kramar, Eric Paul Whitenton
Abstract: The characterization of material properties and mechanical performance of micro-electromechanical devices often hinges on the accurate measurement of small forces.  Calibrated load cells of appropriate size and range are used, but are often not ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823316

58. The NIST Microforce Realization and Measurement Project
Published: 4/1/2003
Authors: David B Newell, Edwin Ross Williams, John A Kramar, Jon Robert Pratt, Douglas T Smith
Abstract: The National Institute of Standards and Technology (NIST) has launched a five-year Micro-force Realization and Measurement project focusing on the development of an instrument and laboratory capable of realizing and measuring the SI unit of force bel ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822085

59. Microforce and Instrumented Indentation Research at the National Institute of Standards and Technology, Gaithersburg, MD
Published: 1/1/2003
Authors: Jon Robert Pratt, David B Newell, John A Kramar, Douglas T Smith
Abstract: This paper provides an overview of recent efforts at the National Institute of Standards and TEchnology to develop metrology and standards to support general users of instrumented indentation and scan-probe devices. Research directed towards a primar ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821956

60. Probe-Force Calibration Experiments Using the NIST Electrostatic Force Balance
Published: 1/1/2003
Authors: Jon Robert Pratt, David B Newell, John A Kramar, J Mulholland, Eric Paul Whitenton
Abstract: The sensitivity of a piezoresistive cantilever force sensor has been determined by probing the weighing pan of the NIST prototype electrostatic force balance. In this experiment, micronewton contact forces between a force probe and the balance''s wei ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821900



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