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Note for Electronic Devices and Circuits - EDC By Ram Babu

  • Electronic Devices and Circuits - EDC
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Ram Babu
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Chapter 16 Semiconductors, Diodes and Their Applications

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A diode is a one-way valve for Current Examples of One-Way Valves Air Check Valve Leg Vein Valves Heart Valves

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Typical diode packages and terminal identification. A is anode and K is cathode. Thomas L. Floyd Electronics Fundamentals, 6e Electric Circuit Fundamentals, 6e Copyright ©2004 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

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Introduction to Semiconductor Materials • Two types of semiconductive materials are silicon and germainium – both have four valance electrons • When silicon and germanium atoms combine into molecules to form a solid material, they arrange themselves in a fixed pattern called a crystal – atoms within the crystal structure are held together by covalent bonds (atoms share valence electrons) • An intrinsic crystal is one that has no impurities

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