Insight Electronics, LLC Specialist distributor of semiconductors including programmable logic, ASICs, analog/mixed signal, RF/Wireless, communications/networking, DSPs and microcontrollers. Online line card, part search and links to manufacturers' data sheets. http://www.insight-electronics.com/
IT Facts.biz - Just The Facts 2006. permalink more on semiconductors. PC chip sales to grow 18% in 2004. Sales permalink more on semiconductors. Semiconductor manufacturing http://www.itfacts.biz/index.php?id=C0_14_1
MBE Group ISG1 WinGreen is a quantum transport simulation package for layered semiconductors. Free download. http://www.fz-juelich.de/isg/mbe/software.html
Extractions: More screenshots ... WinGreen is a simulation package for transport calculations in layered semiconductors. Based on realtime Green's functions it provides a quantum mechanical approach for the description of dynamic and kinetic properties of interacting many-particle systems in a thermodynamic nonequilibrium state. The Coulomb interaction between charged particles is calculated via a Hartree selfconsistent single-particle potential employing the Poisson equation and the charge density from the Green´s functions. At the moment scattering (phonons, impurities, interface roughness etc.) is incorporated by means of an optical potential which is an empirical parameter. The material layer sequence is formulated on the basis of localized atomic orbitals with material dependant inter-layer coupling matrices. This tight binding approach provides an accurate model of heterointerfaces. WinGreen is an integrated simulation environment which allows a quick and convenient generation of simulation jobs, manages the computation process and provides plotting functions to display the simulation results. All material parameters are stored in ASCII format material databases which can be easily customized. The simulator is capable of generating output for the selfconsistent potential, the quantum charge density, the local density of states, the current density, the transmission probability and the bandstructure of zincblende type materials. In this version, multi-band outputs are supported but should be considered experimental.
Industries & Communities - Bizjournals.com Get started here Email Delivery Sign up to have Industry news headlines sent to you when we post them. » Sign up now HIGH TECH semiconductors. Quick http://www.bizjournals.com/industries/high_tech/semiconductors/
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:: Bates & Associates Houston, Texas area distributor of processors, semiconductors, passives, discretes, and other components, and circuit board manufacturers representative. Line card and part search. http://www.batesquote.com/
AsiaTech Management - A Ventrue Capital Firm Focus early stage funding in the ecommerce, communications, networking, Internet, information technology and semiconductors areas. http://www.asiatechventure.com/
::: AMtek SEMICONDUCTORS CO., LTD. ´¹P¥b¾ÉÅé ::: Design and manufacturing capability of analog and Mixed Mode IC to CD/VCD/DVD player, Scanner and Hall Sensor application of motor driver. http://www.amtek-semi.com/
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Wired News: Semiconductors Are Smokin' Advertisement. semiconductors Are Smokin . by Leander Kahney Also by this reporter Page 1 of 2 next ». 0300 AM Feb. 07, 2000 PT. http://www.wired.com/news/technology/0,1282,34100,00.html?tw=wn_story_related
Extractions: Olympus Products Limited are a global distributor, sourcing electronic components such as obsolete semiconductors, integrated circuits, active components and obsolete electronic components. With over 20 years experience in the electronics industry our aim is to provide our customers with high quality products and high quality leveles of service. Our "state of the art" search engine can analyse literally billions of components worldwide 24 hours a day. We are able to source for you components that are hard to find , that are on long lead times , are on allocation or parts that have become obsolete. We have over 1 billion live stock lines for you to search. We are equally able to supply semiconductors , passives , wound and electromechanical components at realistic competitive prices. Manufacturers that we are able to supply are as follows: Components on long lead times , hard to find , on allocation or parts that have become obsolete we can help. Why call anyone else ? var site="sm6olymprod"
Semiconductors semiconductors. material used. The substances first used for semiconductors were the elements germanium, silicon, and gray tin. It http://www.mtmi.vu.lt/pfk/funkc_dariniai/sol_st_phys/semiconductor.htm
Extractions: Programm Quant mech Intro ... Technology Solids are classified according to their properties as either insulators, conductors, or semiconductors based on the number of charge carriers in the conduction band and hence their ability to support current flow: Insulators do not permit current flow because the separation between their valence and conduction bands is too large to allow an electron to be promoted into the conduction band where it could take part in conduction. (only a few thousand conduction electrons per cm Conductors allow current to flow easily because of the large number of conduction electrons (10 per cm ) available. In conductors the energy bands overlap making it possible for very small energies to liberate the electrons where they then participate in current flow. Semiconductors are classified between conductors and insulators (with approximately 10 carriers per cm ). A few electrons appear in the conduction band, with an equal number of holes in the valence band, enabling limited conduction. The energy separation between the valence and conduction bands in semiconductors can be overcome by thermal, electrical, or chemical excitations to name a few. Because of the widespread use of semiconductor devices in electronics (A p-n junction and a transistor being the basic components of any system) precise analysis of their properties is crucial. Semiconductor
Semiconductors - White Papers, Webcasts And Case Studies - ZDNet Netegrity Case Study Philips semiconductors, Netegrity, July 2002. Interfacing External I/O with Rabbit 2000/3000 Designs, Rabbit semiconductors, June 2002. http://itpapers.zdnet.com/search.aspx?kw=semiconductors&tag=wpr_more&promo=20011
Tallwood Venture Capital Focus semiconductors and semiconductor related technologies. http://www.tallwoodvc.com
Extractions: Tallwood Venture Capital is a venture capital firm focusing on semiconductors and semiconductor related technologies. Tallwood raised its first institutional fund of $180 million in 2002. Investors include Stanford University and Harvard University. Tallwood's practice is based on a deep understanding of markets, the impact technology will have on them and a hands-on, very active involvement post investment. Tallwood also utilizes a best in class team of consultants and advisors to help build our practice and work directly with our portfolio companies. Our vision is to actively help entrepreneurs to develop and grow technology-based start ups into world-class companies.
Cadence Design Systems Cadence is a supplier of electronic design technologies, methodology services, and design services. Cadence solutions are used to accelerate and manage the design of semiconductors, computer systems, networking and telecommunications equipment, consumer electronics, and a variety of other electronicsbased products. (NYSE CDN) http://www.cadence.com/
A Rough Guide To Electronics LESSON 4 semiconductors. Certain materials, called semiconductors, are insulators that have a few loose electrons. They are partly able to conduct a current. http://www.madlab.org/electrnx/lesson4.html
Extractions: Now we come to what is probably the most important discovery in electronics this century. Without this discovery we wouldn't have televisions, computers, space rockets or transistor radios. Unfortunately it's also one of the hardest areas to understand in electronics. But don't lose heart, read the section through a few times until you've grasped the ideas. Here goes. Recall that the reason that metals are such good conductors is that they have lots of electrons which are so loosely held that they're easily able to move when a voltage is applied. Insulators have fixed electrons and so are not able to conduct. Certain materials, called semiconductors , are insulators that have a few loose electrons. They are partly able to conduct a current. The free electrons in semiconductors leave behind a fixed positive charge when they move about (the protons in the atoms they come from). Charged atoms are called ions . The positive ions in semiconductors are able to capture electrons from nearby atoms. When an electron is captured another atom in the semiconductor becomes a positive ion. This behaviour can be thought of as a 'hole' moving about the material, moving in just the same way that electrons move. So now there are two ways of conducting a current through a semiconductor, electrons moving in one direction and holes in the other. There are two kinds of current carriers. The holes don't really move of course. It is just fixed positive ions grabbing neighbouring electrons, but it appears as if holes are moving.
