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With over 2000 terms defined and explained, Semiconductor Glossary is the most complete reference in the field of semiconductors on the market today.


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Including some 500 new terms defined and remaining terms updated and modified, a 2nd edition book version of this glossary is now available.


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Term (Index) Definition
amorphous material  non-crystalline solid; no periodicity and long-range order at all; lower quality than crystalline materials but cheaper to form; amorphous semiconductors are useful in large-area applications such as solar cells and flat panel displays; insulators used in semiconductor technology, e.g. SiO2 and Si3N4, are typically amorphous.

Reference: See Semiconductor Notes for more information
polycrystalline material, poly  long-range order exists only within limited in volume grains; grains are randomly connected to form a solid; size of grains in x-y-z directions varies depending on material and method of its formation, but there is no preferential extension of the single-crystal within the grain in any direction; readily available in the bulk form, but most commonly used as a thin film; common applications in Si devices: gate contact in MOSFETs, active material in TFTs, and as a substrate for Si solar cells.

Reference: See Semiconductor Notes for more information
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Jerzy Ruzyllo is a Distinguished Professor Emeritus in the Department of Electrical Engineering at Penn State University.



This book gives a complete account of semiconductor engineering covering semiconductor properties, semiconductor materials, semiconductor devices and their uses, process technology, fabrication processes, and semiconductor materials and process characterization.


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Created and operated by J. Ruzyllo. Copyright J. Ruzyllo 2001-2016. All rights reserved.

Information in this glossary is provided at the author's discretion. Any liability based on, or related to the contents of this glossary is disclaimed.