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Topic: Semiconductor devices

	Multi-junction semiconductor devices
		Their first working device was a "point-contact transistor" -- Shockley's team had modified a "cat's whisker"-style diode by placing two fine metal wires close together on the surface of a piece of N-type germanium.
		In the bipolar transistor (as in all modern transistors), the vital junctions between the N-type and P-type layers are buried deep within the semiconductor crystal where they cannot be affected by their surroundings.
		Note that the bipolar transistor is a current-amplifying device, unlike the vacuum tube and the field-effect transistor (FET), both of which depend upon voltage changes to operate.
	www.solarbotics.net /bftgu/starting_elect_semic_nj.html (1662 words)

	Multilayer semiconductor switching devices - Patent 4190853
		The semiconductor switch device of claim 1 wherein said first and fourth electrodes are connected to form a gate electrode, said second and third electrodes are connected to form a first anode and said fifth and sixth electrodes are connected to form a second anode.
		Semiconductor regions and electrodes are formed on the other side of the body on the other side of the channel to form electrical circuitry which operates independently, in at least one mode, of the switching device.
		The bottom NP stages of device 60 are shared, or are common, with a second NPNP device 62 which comprises the remainder of the layers shown in the devices of FIGS.
	www.freepatentsonline.com /4190853.html (6415 words)

	Semiconductor Materials, Junctions, and Devices
		Semiconductor devices are small but versatile units that can perform an amazing variety of control functions in electronic equipment.
		Unlike other electron devices, which depend for their functioning on the flow of electric charges through a vacuum or a gas, semiconductor devices make use of the flow of current in a solid.
		As used in semiconductor devices, however, these materials contain carefully controlled amounts of certain impurities which reduce their resistivity to about 2 ohm–centimeters at room temperature (this resistivity decreases rapidly as the temperature rises).
	www.luminet.net /~wenonah/riddick/semicond.htm (2173 words)

	Semiconductor applications
		Semiconductor devices are contained in television sets, portable radios, stereo equipment, and much more.
		It should not be difficult to conclude, from what you already know, that semiconductor devices can and do perform all the conventional functions of rectification, amplification, oscillation, timing, switching, and sensing.
		This is true mainly because semiconductor devices perform very well with an extremely small amount of power; in addition, they require no filaments or heaters as in the case of the electron tube.
	www.tpub.com /neets/book7/24a.htm (790 words)

	Semiconductor Devices
		Semiconductor physics, one of the largest branches of solid state physics, studies both the fundamental principles of nature and the complexity of its systems.
		What renders semiconductors really unique and fascinating, however, is their incredible richness in phenomena, and the enormous range of their physical parameters.
		In addition to their commercial significance, advanced semiconductor devices are also a wonderful playground for testing quantum physics.
	www.phys.unsw.edu.au /~arh/background/Semiconductor_Devices/semiconductor_devices.html (757 words)

	Understanding Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		Bridging the gap between theory and practice, Understanding Semiconductor Devices incorporates the "nuts and bolts" of SPICE (models and parameters) and provides links between theoretical principles and real-life issues like reliability and device parameter measurement.
		By the time the reader is done with the first chapter on resistors, he or she can carry forward the tools and viewpoints into the capacitor, diode, and transistor chapters.
		Semiconductor devices remain at the core of the modern technology industry.
	www.gu.edu.au /school/mee/PPages/Sima/usd.html (916 words)

	CMM: The Virtual Electron Microscope - Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		Smaller devices imply that the associated capacitances are reduced.
		The research loop is closed by the investigation of the causes of failure in the fabricated devices.
		To form these devices, regions of the silicon which are not to be altered by diffusion, etching, metal deposition must be protected.
	www.uq.edu.au /nanoworld/semicond.html (545 words)

	MRB: Semiconductor Devices
		The author not only has great efforts to make the material easy to understand but also has been careful to avoid compromising the accuracy and thoroughness of the material for which an understanding of the basic quantum mechanical concepts is necessary.
		These pages are intended to describe the basic structure and general properties of semiconductor devices.
		EE-3103-B Semiconductor Devices You will explore the world of semiconductors - diodes, bipolar transistors, FETs, thyristors and UJTs - to discover how these components are made, how they operate and...
	www.medical-research-books.com /mrb-books-reviewed/0023619384.html (1040 words)

	Semiconductor Software (Site not responding. Last check: 2007-11-07)
		A semiconductor device electric model, based on drift-diffusion equations for carrier densities and energy balance equations for carrier temperatures, calculates the spatially dependent current flow.
		The program involves the dynamic response of semiconductor lasers, the amplitude and phase response of modulators, the gain and noise characteristics of the optical amplifiers, the chromatic dispersion, Kerr nonlinearity and Raman scattering of fibers, and the frequency and noise characteristics of the receiver.
		The SENSOR kernel for numerical simulations of sensor and actuator devices, the REACTIVE FLOW kernel for numerical simulations of flows in (micro) fluid systems or fuel cells and the SEMICONDUCTOR kernel for simulation of inorganic semiconductor devices are available.
	www.engineering.ucsb.edu /~piprek/software.htm (2830 words)

	Amazon.com: Books: Physics of Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		The physics of semiconductor devices is naturally dependent on the physics of semiconductors themselves.
		Fundamentals of Semiconductor Devices by Betty Lise Anderson
		The Physics of Semiconductor Devices is a classic in the field, containing all the necessary knowledge as of 1981.
	www.amazon.com /exec/obidos/tg/detail/-/0471056618?v=glance (1214 words)

	EE 3161 Semiconductor Devices
		This course is designed to provide an introduction to the microscopic mechanisms of device operation.
		These concepts will then be applied to understanding the operation of the most basic semiconductor devices – pn junction diodes, bipolar junction transistors, and metal-oxide-semiconductor field effect transistors.
		The course will prepare a student for advanced study, give the student a fluency in the language of semiconductor devices, improve the student’s ability to design circuits, and enable the student to understand new semiconductor devices.
	www.ece.umn.edu /users/kiehl/EE3161S02.html (245 words)

	Optoelectronic Semiconductor Devices - Principals and Characteristics.
		Optical semiconductor devices are widely used, in fields ranging from optical fiber communication systems to consumer electronics, and have become indispensable devices in the equipment and systems making up the infrastructure of our society.
		Most semiconductor optoelectronic devices are pn-junction diodes, and their performance depends on the properties of the pn-junction and of the semiconductor material.
		Unlike in most semiconductor diodes or transistors that are to be used in purely electronic circuits, it is desirable to have all of the injected carriers recombine in the active region to form photons in a laser or LED.
	www.ece.concordia.ca /~i_statei/vlsi-opt (7467 words)

	Semiconductor Devices
		These pages will begin with basic semiconductor structure and what happens when impurities are added to a pure silicon crystal through a process known as "doping." We'll look at what happens when two or three different regions are created within a single silicon crystal.
		Then we'll start to look at variations: field-effect devices, devices with four and even five different regions, and finally the kinds of effects we can get when we change the amount of impurities within the crystal.
		If a new semiconductor device is invented, I will add it to the site as soon as I do the necessary research.
	www.play-hookey.com /semiconductors (309 words)

	Semiconductor Devices
		Unlike simple devices such as resistors and capacitors, which are fully specified by a value, these devices almost always require a model.
		The model is specified with a model property, which is applied to the device in the same way that a value property is applied to a simple device.
		There are two different MOS device types: the nmos1/pmos1 devices contain stubs for all four nodes (gate, drain, source, and bulk).
	www.wrcad.com /manual/xicmanual/node39.html (630 words)

	Semi1Source Home Page
		Comprehensive guide to semiconductor devices; an attempt to group devices based on principles of operation (under construction).
		Sites are selected to provide information on the variety of topics related to semiconductor processes, semicondutor devices, semiconductor physics, information of general interest to semiconductor community, links to semiconductor related organizations and others.
		Semiconductor Hall of Fame was created and posted in order to recognize those individuals whose scientific and technical contribution had a pivotal effect on semiconductor science and engieering.
	www.semi1source.com (416 words)

	Amazon.com: Books: Semiconductor Devices: Physics and Technology, 2nd Edition (Site not responding. Last check: 2007-11-07)
		It begins with a brief historical review of major devices and key technologies and is then divided into three sections: semiconductor material properties, physics of semiconductor devices and processing technology to fabricate these semiconductor devices.
		As such, it is suited to undergraduate electrical/electronic engineers wishing to gain some appreciation of the physics underpinning conventional semiconductor devices, and the way they are fabricated, or for physicists wishing to gain some perspective on the fabrication and operation of the same, but it is in no way a comprehensive textbook on semiconductor physics.
		All the essentials of semiconductor materials (almost exclusively Si and GaAs) are described, the p-n junction, as well as the major device types (BJTs, (MOS/MES)FETs, microwave diodes, LEDs, lasers, etc.) and the modern technologies employed for their fabrication.
	www.amazon.com /exec/obidos/tg/detail/-/0471333727?v=glance (1421 words)

	Semiconductor devices - a reference guide from Electronicstalk
		We see from your search that you're looking for information on the term "Semiconductor devices", and we have a large number of manufacturers' news stories and technical articles here on Electronicstalk which will be of interest.
		Start with the news story Semiconductor devices enable low-cost handsets from Analog Devices, which we summarised at the time by saying "Analog Devices has revealed its plans for next week's 3GSM World Congress in Cannes, France (14th to 17th February 2005).".
		Several months prior to that, we featured the news story Advanced modelling for semiconductor devices from Innotech: "Innotech Corp is to act as a sales and support agent for Japanese semiconductor device modelling company Modech.".
	www.electronicstalk.com /guides/semiconductor-devices.html (246 words)

	Wiley::Semiconductor Devices Explained: Using Active Simulation
		Simulation is a popular tool used by engineers and scientists in device and process research and the accompanying two dimensional process and device simulation software 'MicroTec', enables students to make their own devices and allows the recreation of real performance under varying parameters.
		Semiconductor Devices Explained offers a comprehensive new approach to teaching the fundamentals of semiconductor components based on the use of the accompanying process and device simulation software.
		There is also a self-test element in which a data bank generates questions on the fundamentals of semiconductor junctions enabling students to assess their progress.
	www.wiley.com /WileyCDA/WileyTitle/productCd-0471988545.html (487 words)

	Power Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		Power semiconductor devices such as MOSFETs and IGBTs have become an enabling technology for modern automotive systems to achieve higher fuel efficiency, lower emission, and better reliability.
		With the discrete semiconductor technologies reaching their maturity on the learning curves, further advancement proves to be difficult if not impossible and requires new ways of thinking.
		The objective of the proposed research is to identify and develop the most cost-effective semiconductor solutions for specific automotive applications by creating an interactive and cooperative research environment with active participation from both automotive and semiconductor industries.
	www.engin.umd.umich.edu /ceep/reports/2002/shen02.html (369 words)

	SPICE: Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		Moreover, many devices in a circuit often are defined by the same set of device model parameters.
		If a device is specified OFF when in reality the device is conducting, the program will still obtain the correct solution (assuming the solutions converge) but more iterations will be required since the program must independently converge to two separate solutions.
		The dc characteristics of the MOSFET are defined by the device parameters VTO, KP, LAMBDA, PHI and GAMMA.
	dolphin.wmin.ac.uk /spice-manual/_semidev.html (1990 words)

	Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		Sophisticated semiconductor nanofabrication techniques can then be used to further constrain the electrons such that they are forced to travel in narrow one-dimensional quantum wires, or bounce around like billiards in small quantum boxes.
		The Semiconductor Nanofabrication Facility at UNSW houses complete facilities for processing both silicon and and gallium arsenide devices.
		If the semiconductor device is of high enough quality that electrons can travel along this narrow channel without scattering, then the channel acts as a one-dimensional electron waveguide.
	www.phys.unsw.edu.au /~arh/background/Nanofabrication/nanofabrication.html (408 words)

	Module: Semiconductor Devices (Site not responding. Last check: 2007-11-07)
		The aim of the module is to enable the student to understand the basic parameters which control the behaviour of electronic devices, such as diodes, bipolar transistors, MOSFETs and thyristors.
		The phenomena which occur in non-idealized devices are studied and the behaviour of real devices is examined in the light of these phenomena.
		Semiconductor Devices M J CookePrentice Hall, 1990, ISBN 0-13-806183-1Semiconductor Materials and DevicesM S Tyagi Wiley, 1991, ISBN 0-471-51772-0Semiconductors and Electronic Devices, A Bar-Lev Prentice-Hall, 1984, ISBN 0-13-806240-4
	www.dcu.ie /registry/module_contents.php?function=2&subcode=EE403 (517 words)

	Steinbeis Transfer Center "Semiconductor Devices" (Site not responding. Last check: 2007-11-07)
		It is based at the Department of Electron Devices and Circuits, and shares the latter's extensive suite of processing and characterization equipment.
		It is dedicated to making advanced semiconductor devices and microfabrication technology available to small and medium-sized enterprises.
		While the Steinbeis Transfer Center is newly established, the Department of Electron Devices and Circuits has successfully participated in a large number of projects, funded by the German government, the European Community, and industry.
	heureka.e-technik.uni-ulm.de /stz (229 words)

	Ion Implantation
		SEMI (Semiconductor Equipment and Materials Internation) is an international trade association that represents semiconductor and flat panel display equipment and materials suppliers.
		SEMATECH is a consortium of American semiconductor manufacturers working with government and academia to sponsor and conduct research aimed at assuring leadership in semiconductor manufacturing technology for the U.S. semiconductor industry.
		Semiconductor Physics Research Center (SPRC) is one of 13 centers of excellence designated by the Korea Science and Engineering Foundation (KOSEF) for the first time in 1990.
	www.casetechnology.com /links.html (4102 words)

	Basic Testing of Semiconductor Devices
		Before testing an unknown device, it is best to confirm and label lead polarity (of voltage provided in resistance or diode test mode) of your meter whether it be an analog VOM or digital DMM using a known good diode (e.g., 1N4007 rectifier or 1N4148 signal diode) as discussed below.
		A fuse is a very analog device with mass and it seems like it would be a slow, lumbering giant compared to almost instantaneous current change.
		The device can be used with any type of oscilloscope and consists of a 6 volt filament transformer, three 1/4 watt resistors and two test probes.
	repairfaq.ece.drexel.edu /sam/semitest.htm (10004 words)

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