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Author: Richard Silver

Displaying records 1 to 10 of 114 records.
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1. Pattern Transfer of Hydrogen Depassivation Lithography Patterns into Silicon with Atomically Traceable Placement and Size Control
Published: 7/17/2014
Authors: Josh Ballard, Stephen McDonnell, Don Dick, Maia Bischof, Joseph Fu, D Jaeger, James Owen , w Owen, Justin Alexander, Udi Fuchs, Pradeep Narayanan Namboodiri, Kai Li, John Randall, Robert Wallace, Yves Chabal, Richard Reidy, Richard M Silver
Abstract: Reducing the scale of etched nanostructures below the 10 nm range eventually will require an atomic scale understanding of the masks being used in order to maintain exquisite control over both feature size and feature density. Here, we demonstrate a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915583

2. Optimizing Hybrid Metrology through a Consistent Multi-Tool Parameter Set and Uncertainty Model
Published: 4/14/2014
Authors: Richard M Silver, Bryan M Barnes, Nien F Zhang, Hui H. Zhou, Andras Vladar, John S Villarrubia, Regis J Kline, Daniel Franklin Sunday, Alok Vaid
Abstract: There has been significant interest in hybrid metrology as a novel method for reducing overall measurement uncertainty and optimizing measurement throughput (speed) through rigorous combinations of two or more different measurement techniques into a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915846

3. Optical volumetric inspection of sub-20 nm patterned defects with wafer noise
Published: 4/2/2014
Authors: Bryan M Barnes, Francois R. Goasmat, Martin Y Sohn, Hui H. Zhou, Richard M Silver, Andras Vladar, Abraham Arceo
Abstract: We have previously introduced a new data analysis method that more thoroughly utilizes scattered optical intensity data collected during defect inspection using bright-field microscopy. This volumetric approach allows conversion of focus resolved 2-D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915807

4. NIST SURFACE ROUGHNESS AND STEP HEIGHT CALIBRATIONS, Measurement Conditions and Sources of Uncertainty
Published: 3/18/2014
Authors: Theodore Vincent Vorburger, Thomas B Renegar, Xiaoyu A Zheng, Jun-Feng Song, Johannes A Soons, Richard M Silver
Abstract: NIST methods for calibration of surface roughness parameters and step height are described. The surface roughness parameters currently being measured include roughness average (Ra), root mean square (rms) roughness (Rq), average maximum height of the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915207

5. Three-dimensional deep sub-wavelength defect detection using (lambda) = 193 nm optical microscopy
Published: 10/25/2013
Authors: Bryan M Barnes, Martin Y Sohn, Francois R. Goasmat, Hui H. Zhou, Andras Vladar, Richard M Silver, Abraham Arceo
Abstract: Identifying defects in photolithographic patterning is a persistent challenge in semiconductor manufacturing. Well-established optical methods in current use are jeopardized by upcoming sub-20 nm device dimensions. Volumetric processing of focus-reso ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914244

6. Quantitative microscope characterization for parametric measurements with sub-nm parametric uncertainties
Published: 9/23/2013
Authors: Bryan M Barnes, Jing Qin, Hui H. Zhou, Richard M Silver
Abstract: Recently, a new technique called Fourier normalization has enabled the parametric fitting of optical images with multiple or even a continuum of spatial frequencies. Integral to the performance of this methodology is the characterization of the high ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914714

7. Fourier Domain Optical Tool Normalization for Quantitative Parametric Image Reconstruction
Published: 9/5/2013
Authors: Jing Qin, Richard M Silver, Bryan M Barnes, Hui H. Zhou, Francois R. Goasmat
Abstract: There has been much recent work in developing advanced optical metrology methods that use imaging optics for critical dimension measurements and defect detection. Sensitivity to nanometer scale changes has been observed when measuring critical dimens ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913587

8. Harnessing 3D Scattered Optical Fields for sub-20 nm Defect Detection
Published: 6/24/2013
Authors: Bryan M Barnes, Martin Y Sohn, Francois R. Goasmat, Hui H. Zhou, Richard M Silver, Abraham Arceo
Abstract: Experimental imaging at =193 nm of sub-resolved defects performed at several focus positions yields a volume of spatial and intensity data. Defects are located in a differential volume, given a reference, with up to 5x increase in sensitivity ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913510

9. 3-D Optical Metrology of Finite sub-20nm Dense Arrays With sub-nanometer Parametric Uncertainties
Published: 6/23/2013
Authors: Jing Qin, Hui H. Zhou, Bryan M Barnes, Ronald G Dixson, Richard M Silver
Abstract: A new approach that involves parametric fitting of 3-D scattered field with electromagnetic simulation, Fourier domain normalization, and uncertainties analysis is presented to rigorously analyze 3-D through-focus optical images of targets that scatt ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913511

10. Distributed Force Probe Bending Model of CD-AFM Bias
Published: 4/1/2013
Authors: Vladimir A. Ukraintsev, Ndubuisi George Orji, Theodore Vincent Vorburger, Ronald G Dixson, Joseph Fu, Richard M Silver
Abstract: Critical Dimension AFM (CD-AFM) is a widely used reference metrology technique. To characterize modern semiconductor devices, small and flexible probes, often 15 nm to 20 nm in diameter, are used. Recent studies have reported uncontrolled and signif ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912266



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