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You searched on: Topic Area: Materials Science

Displaying records 21 to 30 of 390 records.
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21. Synchrotron-Based Measurement of the Impact of Thermal Cycling on the Evolution of Stresses in Cu Through-Silicon Via
Topic: Materials Science
Published: 6/30/2014
Authors: Chukwudi Azubuike Okoro, Lyle E Levine, Ruqing Xu, Klaus Hummler, Yaw S Obeng
Abstract: One of the main causes of failure during the lifetime of microelectronics devices is their exposure to fluctuating temperatures. In this work, synchrotron-based X-ray micro-diffraction is used to study the evolution of stresses in copper through-sili ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915982

22. Defect and Microstructural Evolution in Thermally Cycled Cu Through-Silicon Vias
Topic: Materials Science
Published: 6/14/2014
Authors: Chukwudi Azubuike Okoro, James Marro, Yaw S Obeng, Kathleen Richardson
Abstract: In this study, the effect of thermal cycling on defect generation, microstructure, and the RF signal integrity of blind Cu through-silicon via (TSV) were investigated. Three different thermal cycling profiles were used; each differentiated by their ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915535

23. Spray-deposition and photopolymerization of organic-inorganic thiol-ene resins for fabrication of superamphiphobic surfaces
Topic: Materials Science
Published: 6/9/2014
Authors: Li Xiong, Laken Kendrick, Hannele Heusser, Bradley J Sparks, Christopher M Stafford, James T Goetz, Sergei Nazarenko, Derek L Patton
Abstract: Superamphiphobic surfaces, exhibiting high contact angles and low contact angle hysteresis to both water and low surface tension liquids, have attracted a great deal of attention in recent years due to the importance in many practical application ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=916030

24. Control Fusion for Safe Multi-robot Coordination
Topic: Materials Science
Published: 5/9/2014
Authors: Roger V Bostelman, Jeremy A Marvel
Abstract: Future smart manufacturing systems will include more complex coordination of mobile manipulators (e.g., robot arms mounted on mobile bases). The National Institute of Standards and Technology, Performance of Collaborative Robot Systems Project has b ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915915

25. Measuring Organelle Shape in 3D in Stem Cells Cultured on Nanofiber Scaffolds
Topic: Materials Science
Published: 4/19/2014
Authors: Carl George Simon Jr., Peter Bajcsy, Wojtek J Tutak, Jyotsnendu J. Giri
Abstract: Previous work has demonstrated that culture of osteoprogenitor cells on nanofiber scaffolds can potentiate osteogenic differentiation [1-4]. Culture of cells in nanofiber scaffolds causes changes to cell morphology, suggesting that morphological ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914995

26. Recent Advances in Focused Ion Beam Technology and Applications
Topic: Materials Science
Published: 4/11/2014
Authors: Nabil Bassim, Keana C K Scott, Lucille A Giannuzzi
Abstract: Focused ion beam (FIB) microscopes are extremely versatile and powerful instruments for materials research. These microscopes, when coupled in a system with a scanning electron microscope (SEM), offer the opportunity for novel sample imaging, secti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915390

27. Measuring Stem Cell Dimensionality in Tissue Scaffolds
Topic: Materials Science
Published: 4/1/2014
Authors: Carl George Simon Jr., Sapun Parekh, Christopher K. Tison, Girish Kumar, Tanya M. Farooque, Charles H Camp
Abstract: Many 3D scaffold systems have evolved for tissue engineering, drug screening and in vitro tissue models. However, it is not clear which scaffolds provide a 3D cell niche and there is no clear way to measure cell niche dimensionality. Advances in 3D ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913148

28. EVALUATING THERMAL DAMAGE RESISTANCE OF GRAPHENE/CARBON NANOTUBE HYBRID COMPOSITE COATINGS
Topic: Materials Science
Published: 3/7/2014
Authors: Lamuel David, Ari D Feldman, Elisabeth Mansfield, John H Lehman, Gurpreet Singh
Abstract: Carbon nanotubes and graphene are known to exhibit some exceptional thermal (K~2000 to 4400 W.m-1K-1at 300K) and optical properties. Here, we demonstrate preparation and testing of multiwalled carbon nanotubes and chemically modified graphene-composi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914912

29. Roadmap for Developing Measurement Science for Predicting the Service Life of Polymers Used in Photovoltaic (PV) Systems
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7971
Topic: Materials Science
Published: 2/24/2014
Authors: Xiaohong Gu, Joannie W Chin
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912832

30. A Detailed Failure Analysis Examination of the Effect of Thermal Cycling on Cu TSV Reliability
Topic: Materials Science
Published: 1/1/2014
Authors: Chukwudi Azubuike Okoro, June Waiyin Lau, Yaw S Obeng, Klaus Hummler
Abstract: In this work, a detailed failure analysis of the physical root cause for the increase in electrical resistance and radio-frequency (RF) transmission coefficient of through-silicon via (TSV) daisy chain was investigated. Six different failure modes we ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913115



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