semiconductor device

(redirected from Semiconductor devices)
Also found in: Dictionary, Thesaurus.

semiconductor device

[¦sem·i·kən¦dək·tər di‚vīs]
Electronic device in which the characteristic distinguishing electronic conduction takes place within a semiconductor.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Semiconductor Device


an electron device whose operating principle is based on the electronic processes that occur in semiconductors. In electronics, such devices are used for the conversion of various signals; in power engineering, they are used for the direct conversion of one kind of energy into another.

Semiconductor devices can be classified in many ways—for example, according to their purpose and operating principle; according to the type of material, design, and fabrication techniques; or according to their application. The principal classes of semiconductors, however, are considered to be the following: (1) electric-conversion devices, which convert one electrical quantity into another electrical quantity—semiconductor diodes, transistors, and thyristors; (2) optical electronic devices, which convert light signals into electric signals or vice versa— optrons, photoresistors, photodiodes, phototransistors, light-activated thyristors, semiconductor lasers, light-emitting diodes, and solid-state image converters, which are analogues of, for example, the vidicon; (3) thermoelectric devices which convert heat energy into electric energy or vice versa—for example, thermocouples, thermoelectric generators, solar batteries, and thermistors; (4) magnetoelectric devices such as sensing elements that make use of the Hall effect; and (5) piezoelectric and strain-gauge devices, which respond to pressure or mechanical displacement. Integrated circuits should be regarded as a separate class of semiconductor devices. Such circuits can be, for example, of the electric conversion type or the optical electronic type, or they can be of a mixed type and combine effects of quite different kinds in one device.

Electric-conversion semiconductor devices are the broadest class of devices designed to convert (with respect, for example, to type of current or to frequency), amplify and generate electrical oscillations in the frequency range from fractions of a hertz to 100 gigahertz or more. Their operating powers range from less than 10-12 watt to several hundred watts, their voltages from fractions of a vok to several thousand volts, and their currents from several nanoamperes to several thousand amperes.

Depending on the semiconductor material used, such types as germanium and silicon semiconductor devices are distinguished. When classified by their design and fabrication characteristics, semiconductor devices are categorized as point-contact devices or as junction devices. The latter category is in turn subdivided into, for example, alloy-type, diffusion-type, mesa-planar, planar, and epitaxial-planar devices. Planar devices are the most widespread type. With respect to their application, such types as high-frequency, high-voltage, and pulsed semiconductor devices are distinguished.

Semiconductor devices are enclosed in metal-glass, cermet ceramic or plastic casings, which protect the devices from external influences. Casingless semiconductor devices are manufactured for use in hybrid integrated circuits. Approximately 100,000 types of semiconductor devices for various purposes are manufactured throughout the world.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

semiconductor device

A transistor, circuit or chip, all of which use semiconductor materials. See semiconductor.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
North America has many research centers and is expected to be the second dominating region for SiC power semiconductor devices.
Manufacture of semiconductor devices and other electronic components industries was the highest with a value of P468.4 billion, or 9.7%.
In a bid to achieve practical use of semiconductor devices necessary for automated driving technologies, DENSO established NSITEXE in 2017 to design and develop a next-generation, high-performance semiconductor devices to advance autonomous driving solutions.
This new platform tests the latest semiconductor devices for mobile, automotive, wearable and industrial applications, and can be tailored to meet precise production test requirements.
Teysseyre and de los Reyes developed a top-gate molding system for encapsulating semiconductor devices based on mold cavities formed between a middle plate and a bottom plate with an elaborate runner system.
"By developing breakthrough wafer cleaning solutions that will provide semiconductor device manufacturers with demonstrable enhancements of their production yields, Planar is on the cusp of extraordinary revenue growth," said Rob Randhawa, founder and CEO of Planar.
"Perhaps the most important result is that we are able to incorporate multifunctional, silicon semiconductor device technologies into the form of soft, three-dimensional, form-fitting skins, suitable for integration not only with the fingertips but also other parts of the body," continued Professor Rogers.
The Silicon Carbide semiconductor devices market ] is expected to grow robustly at a high CAGR of 37.67% from 2012 to 2022.
The rater will keep a close watch on the company's ability to bolster its financial base through improvements in earnings and cash flows, driven mainly by the opportunities on the market for energy-saving products with semiconductor devices.
1998, currently focuses on designing and manufacturing high-quality power semiconductor devices for applications to a broad spectrum of information-technology and industrial platforms.
The seven chapters cover spin-polarized transport in organic semiconductors, modeling spin injection and transport in organic semiconductor structures, magnetoresistance and spin transport in organic semiconductor devices, spintronic applications of organic materials, magnetic field effects in pi-conjugated systems, investigating spin-dependent processes in organic semiconductors, and sensor and memory applications.
This 3-year project is designed to maintain the strong positions that Europe's semiconductor and electronics equipment companies have achieved in highly competitive application areas such as automotive systems and factory automation where the semiconductor devices are often required to work under harsh conditions with temperatures in excess of 100 degrees Celsius.

Full browser ?