Publication Date

1954

Document Type

Dissertation/Thesis

First Advisor

Rigney, Carl J. (Carl Jennings), 1925-2011||Miner, Wallace B.||Gould, Howard W.

Degree Name

M.S. (Master of Science)

Legacy Department

Department of Physics

LCSH

Physics; Transistors

Abstract

In 1948 the first transistor was developed as nothing more than just a laboratory curiousity. Today it has been developed into a small economical valve for electrons. The transistor is a small crystal, about the size of a kernel of corn, which does the same job as a hot bulky vacuum tube, except that the transistor controls electrons within a solid block of material, whereas the vacuum tube controls the electron flow across a vacuum. The germanium transistor consists of extremely purified germanium (one atom of impurity to one hundred-mil 1 ion atoms of germanium) in crystal form (5:40). Pure germanium has a high resistance. Yet when exactly measured amounts of certain impurities such as arsenic, aluminum, antimony, or gallium are added, the crystal conductivity increases by definite amounts. These germanium crystals are sliced into thin pellets for use in the translator.

Comments

Includes bibliographical references.||Includes illustrations.

Extent

29 pages, 5 unnumbered pages of plates

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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