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Exponential Challenges, Exponential Rewards - The Future of Moore's Law
14 Dec 2004 | | Contributor(s):: Shekhar Borkar
Three exponentials have been the foundation of today's electronics, which are often taken for granted—namely transistor density, performance, and energy. Moore's Law captures the impact of these exponentials. Exponentially increasing transistor integration capacity, and...
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Faster Materials versus Nanoscaled Si and SiGe: A Fork in the Roadmap?
20 Apr 2004 | | Contributor(s):: Jerry M. Woodall
Strained Si and SiGe MOSFET technologies face fundamental limits towards the end of this decade when the technology roadmap calls for gate dimensions of 45 nm headed for 22 nm. This fact, and difficulties in developing a suitable high-K dielectric, have stimulated the search for alternatives to...
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Field Regulation of Single Molecule Conductivity by a Charged Atom
29 Jul 2005 | | Contributor(s):: Robert Wolkow
A new concept for a single molecule transistor is demonstrated. A single chargeable atom adjacent to a molecule shifts molecular energy levels into alignment with electrode levels, thereby gating current through the molecule. Seemingly paradoxically, the silicon substrate to which the molecule...
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Fine Tuning Microcantilever Vibrations for Ultrasensitive Analyte Mass Detection
27 Jul 2005 | | Contributor(s):: Arvind Raman
Microcantilever based biochemical sensing has shown tremendous promise for ultrasenstive detection in both liquid and ambient conditions. However improving the sensitivity, reliability and robustness of these sensors so they can achieve their potential needs substantial efforts in (a) chemical...
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Finite Size Scaling and Quantum Criticality
09 May 2007 | | Contributor(s):: Sabre Kais
The study of quantum phase transitions, which are driven by quantum fluctuations as a consequence of Heisenberg's uncertainty principle, continues to be of increasing interest in the fields of condensed matter and atomic and molecular physics. In this field we have established an analogy between...
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First Principles-Based Modeling of materials: Towards Computational Materials Design
20 Apr 2006 | | Contributor(s):: Alejandro Strachan
Molecular dynamics (MD) simulations with accurate, first principles-based interatomic potentials is a powerful tool to uncover and characterize the molecular-level mechanisms that govern the chemical, mechanical and optical properties of materials. Such fundamental understanding is critical to...
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From density functional theory to defect level in silicon: Does the “band gap problem” matter?
01 Oct 2008 | | Contributor(s):: Peter A. Schultz
Modeling the electrical effects of radiation damage in semiconductor devices requires a detailed description of the properties of point defects generated during and subsequent to irradiation. Such modeling requires physical parameters, such as defect electronic levels, to describe carrier...
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From Vision to Reality: The NNI at Five Years
11 Apr 2006 | | Contributor(s):: Mihail "Mike" Roco
Science and engineering are at the heart of the human endeavor leading to a "knowledge society." They also are the primary drivers of global technological competition. The newest key player in this science and technology arena is nanotechnology, the ability to organize individual atoms and...
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Fun in the Sand: Some Experiments in Granular Physics
16 Feb 2010 | | Contributor(s):: Peter E. Schiffer
In the last two decades, condensed matter physicists have begun an intense study of the dynamic and static properties of granular media (materials made from individual acroscopic solid grains). These materials offer a vast arena of new physical phenomena which are highly accessible and largely...
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Functionalized Nanomaterials at the Interface of Biology and Technology
24 Apr 2008 | | Contributor(s):: Dean Ho, National Center for Learning & Teaching in Nanoscale Science & Engineering
Nanomaterials, such as block copolymeric membranes and nanodiamonds, can be engineered for a broad range of applications in energy and medicine. This presentation will highlight the relevance of these materials as foundations for device fabrication across the spectrum of biology and technology....
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Funding Opportunities for Bilateral Activities between USA and India
09 Jul 2008 | | Contributor(s):: Arabinda Mitra
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Gas Damping of Microcantilevers at Low Ambient Pressures
03 Nov 2008 | | Contributor(s):: Rahul Anil Bidkar
This seminar will present a theoretical model for predicting the gas damping of long, rectangular silicon microcantilevers, which are oscillating in an unbounded gaseous medium with the ambient pressures varying over 5 orders of magnitude (1000 > Kn > 0.03). The work is the result of a...
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HCIS-15 Lecture: Nanodevices and Maxwell’s Demon
23 Jul 2007 | | Contributor(s):: Supriyo Datta
The 15th International Conference onNonequilibrium Carrier Dynamics in Semiconductors (HCIS-15) lecture.This 30 minute lecture coversroughly the same material as Lecture 1 of Concepts of Quantum Transport.
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Hexagonal Prism Blue Diode Laser Using Whispering Gallery Mode (WGM) Resonances
23 Oct 2007 | | Contributor(s):: sangho kim
Semiconductor lasers have many important applications, including communication technologies, optical storage, printing, and molecular detection. The range of applications could be broadened significantly if the lasers could be made smaller and with lower threshold currents. Today’s in-plane...
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Hierarchical Temporal Memory: How a New Theory of Neocortex May Lead to Truly Intelligent Machines
12 Dec 2007 | | Contributor(s):: Jeff Hawkins
Coaxing computers to perorm basic acts of perception and robotics, let alone high-level thought, has been difficult. No existing computer can recognize pictures, understand language, or navigate through a cluttered room with anywhere near a child's facility. Following nature's example, Jeff...
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High-Aspect-Ratio Micromachining of Titanium: Enabling New Functionality and Opportunity in Micromechanical Systems Through Greater Materials Selection
09 Apr 2007 | | Contributor(s):: Masa Rao
Traditionally, materials selection has been limited in high-aspect-ratio micromechanical applications, due primarily to the predominance of microfabrication processes and infrastructure dedicated to silicon. While silicon has proven to be an excellent material for many of these applications, no...
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High-Aspect-Ratio Micromachining of Titanium: Enabling New Functionality and Opportunity in Micromechanical Systems Through Greater Materials Selection
18 Jun 2008 | | Contributor(s):: Masa Rao
Traditionally, materials selection has been limited in high-aspect-ratio micromechanical applications, due primarily to the predominance of microfabrication processes and infrastructure dedicated to silicon. While silicon has proven to be an excellent material for many of these applications, no...
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Highly Efficient Thermal Transport: The Application of Carbon Nanotube Array Interfaces
01 Feb 2007 | | Contributor(s):: Baratunde A. Cola
Carbon nanotubes (CNTs) have received much attention in recent years for their extraordinary properties that through careful engineering may be leverage for the development of numerous advantageous applications. However, to date, only few CNT based applications exist in the market place. So when...
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History of Semiconductor Engineering
28 Jun 2006 | | Contributor(s):: Bo Lojek
When basic researchers started working on semiconductors during the late nineteen thirties and on integrated circuits at the end of the nineteen fifties, they did not know that their work would change the lives of future generations. Very few people at that time recognized the significance of...
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How Can Your Educational Modules Contain Interactive Online Simulation?
28 Feb 2005 | | Contributor(s):: Gerhard Klimeck
The Network for Computational Nanotechnology (NCN) is a multi-university, NSF-funded initiative with a mission to lead in research, education, and outreach to students and professionals, while at the same time deploying a unique web-based cyber-infrastructure to serve the nation''s National...