What does tunnel diode mean?
Definitions for tunnel diode
tun·nel diode
This dictionary definitions page includes all the possible meanings, example usage and translations of the word tunnel diode.
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Wiktionary
tunnel diodenoun
A semiconductor diode that has negative resistance in the forward direction of its operating range due to quantum effects.
Wikidata
Tunnel diode
A tunnel diode or Esaki diode is a type of semiconductor diode that is capable of very fast operation, well into the microwave frequency region, by using the quantum mechanical effect called tunneling. It was invented in August 1958 by Leo Esaki when he was with Tokyo Tsushin Kogyo, now known as Sony. In 1973 he received the Nobel Prize in Physics, jointly with Brian Josephson, for discovering the electron tunneling effect used in these diodes. Robert Noyce independently came up with the idea of a tunnel diode while working for William Shockley, but was discouraged from pursuing it. These diodes have a heavily doped p–n junction only some 10 nm wide. The heavy doping results in a broken bandgap, where conduction band electron states on the n-side are more or less aligned with valence band hole states on the p-side. Tunnel diodes were first manufactured by Sony in 1957 followed by General Electric and other companies from about 1960, and are still made in low volume today. Tunnel diodes are usually made from germanium, but can also be made in gallium arsenide and silicon materials. They are used in frequency converters and detectors. They have negative differential resistance in part of their operating range, and therefore are also used as oscillators, amplifiers, and in switching circuits using hysteresis.
Numerology
Chaldean Numerology
The numerical value of tunnel diode in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of tunnel diode in Pythagorean Numerology is: 6
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"tunnel diode." Definitions.net. STANDS4 LLC, 2024. Web. 1 May 2024. <https://www.definitions.net/definition/tunnel+diode>.
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