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Displaying records 61 to 70 of 117 records.
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61. Optical Critical Dimension Measurement and Illumination Analysis using the Through-focus Focus Metric
Published: 3/24/2006
Authors: Ravikiran Attota, Richard M Silver, M R Bishop, Ronald G Dixson
Abstract: In this paper we present utility of the out of focus optical microscope images for metrology applications as opposed to the best focus images. Depending on the type of analysis, considerable beneficial information can be deduced from the out of focus ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823215

62. Koehler Illumination for High-Resolution Optical Metrology
Published: 3/1/2006
Authors: Martin Y Sohn, Bryan M Barnes, Lowell P. Howard, Richard M Silver, Ravikiran Attota, Michael T. Stocker
Abstract: Accurate preparation of illumination is critical for high-resolution optical metrology applications such as line width and overlay measurements. To improve the detailed evaluation and alignment of the illumination optics, we have separated Koehler il ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823207

63. The Limits of Image-Based Optical Metrology
Published: 3/1/2006
Authors: Richard M Silver, Bryan M Barnes, Ravikiran Attota, Jay Shi Jun, James J Filliben, Juan Soto, Michael T. Stocker, P Lipscomb, Egon Marx, Heather J Patrick, Ronald G Dixson, Robert D. Larrabee
Abstract: An overview of the challenges encountered in imaging device-sized features using optical techniques recently developed in our laboratories is presented in this paper.  We have developed a set of techniques we refer to as scatterfield microscopy ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823206

64. The Study of Silicon Stepped Surfaces as Atomic Force Microscope Calib Standards With a Calibrated AFM at NIST
Published: 9/29/2005
Authors: V W. Tsai, Theodore Vincent Vorburger, Ronald G Dixson, Joseph Fu, R Koning, Richard M Silver, Edwin Ross Williams
Abstract: Due to the limitations of modern manufacturing technology, there is no commercial height artifact at the sub-nanometer scale currently available. The single-atom steps on a cleaned silicon (111) surface with a height of 0.314 nm, derived from the lat ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=820918

65. Dynamic Modeling and Vibration Analysis of a UHV Scanning Tunneling
Published: 8/17/2005
Authors: Sumanth B. Chikkamaranahalli, R. R Vallance, Bradley N Damazo, Richard M Silver, James D Gilsinn
Abstract: Techniques based on scanning probe microscopy (SPM) are used to fabricate surface structures with dimensions ranging from 10 - 100mm. These structures have been fabricated and imaged using a scanning tunneling microscope (STM), and the STM requires ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822269

66. High-resolution Optical Metrology
Published: 5/1/2005
Authors: Richard M Silver, Ravikiran Attota, Michael T. Stocker, M R Bishop, Lowell P. Howard, Thomas Avery Germer, Egon Marx, M P Davidson, Robert D. Larrabee
Abstract: Recent advances in optical imaging techniques have unveiled new possibilities for optical metrology and optical-based process control measurements of features in the 65 nm node and beyond. In this paper we discuss methods and applications that combin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822387

67. Characterization of Prototype Silicon Pitch Artifacts Fabricated by Scanning Probe Lithography and Anisotropic Wet Etching
Published: 1/1/2005
Authors: F S Chien, W F Hsieh, S Gwo, Jay Shi Jun, Richard M Silver, Andras Vladar, John A Dagata
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822246

68. Photomask Metrology, Photomask Fabrication Technology
Published: 1/1/2005
Authors: Richard M Silver, Andras Vladar
Abstract: In this paper we will focus on the different metrology techniques used to measure features on photomasks.  In view of the above discussion, we will focus on the importance of accurately measuring features and developing traceability.  The m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823184

69. The Influence of Defects on the Morphology of Si (111) Etched in NHF
Published: 1/1/2005
Authors: Hui H. Zhou, Joseph Fu, Richard M Silver
Abstract: We have implemented a kinetic Monte-Carlo (KMC) simulation to study the morphologies of Si (111) surfaces etched in NHF. Although our initial simulations reproduced the previous results from Hines, it failed to produce the morphologies observed in ou ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=823191

70. Evaluation of New In-Chip and Arrayed Line Overlay Target Designs
Published: 5/24/2004
Authors: M P Davidson, M R Bishop, Robert D. Larrabee, Michael T. Stocker, Jay Shi Jun, Egon Marx, Richard M Silver, Ravikiran Attota
Abstract: Two types of overlay targets have been designed and evaluated for the study of optical overlay metrology. They are in-chip and arrayed overlay targets. In-chip targets are three-bar two-level targets designed to be placed in or near the active device ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=822156



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