Shockley diode
Invented | William Shockley |
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Pin configuration | Anode and Cathode |
Electronic symbol | |
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The Shockley diode (named after physicist William Shockley) is a four-layer semiconductor diode, which was one of the first semiconductor devices invented. It was a "pnpn" diode. It is equivalent to a thyristor with a disconnected gate. Shockley Diodes were manufactured and marketed by Shockley Semiconductor Laboratory in the late 1950s.[1]
Usages
Common applications:
- Trigger switch for silicon controlled rectifier
- Relaxation oscillator / sawtooth oscillator
Niche applications:
Typical values
Description | Range[4] | Typically |
---|---|---|
Forward operation | ||
Switching voltage Vs | 10V to 250V | 50V +/- 4V |
Holding voltage Vh | 0.5V to 2V | 0.8V |
Switching current Is | a few µA to some mA | 120µA |
Hold current IH | 1 to 50mA | 14 to 45mA |
Reverse operation | ||
Reverse current IR | 15µA | |
Reverse breakdown voltage Vrb | 10V to 250V | 60V |
Dynistor
Small-signal Shockley diodes are no longer manufactured, but the unidirectional thyristor breakover diode, also known as the dynistor, is a functionally equivalent power device. An early publication about dynistors was published in 1958.[5] In 1988 the first dynistor using silicon carbide was made.[6] Dynistors can be used as switches in micro- and nanosecond power pulse generators.[7]
References
- Michael Riordan and Lillian Hoddeson; Crystal Fire: The Invention of the Transistor and the Birth of the Information Age. New York: Norton (1997) ISBN 0-393-31851-6 pbk.
- ↑ http://semiconductormuseum.com/PhotoGallery/PhotoGallery_Shockley4E30_Page3.htm
- ↑ http://semiconductormuseum.com/PhotoGallery/PhotoGallery_Shockley4E30_Page5.htm
- ↑ https://web.archive.org/web/20070221045323/http://www.elecdesign.com/Articles/ArticleID/3979/3979.html
- ↑ Willfried Schurig (1971) (in German), amateurreihe electronica: Kennlinien elektronischer Bauelemente. Teil II: Halbleiter Dioden, Berlin: Deutscher Militärverlag, p. 119
- ↑ http://ieeexplore.ieee.org/document/1155602/
- ↑ http://digital-library.theiet.org/content/journals/10.1049/el_19880702
- ↑ http://przyrbwn.icm.edu.pl/APP/PDF/115/a115z627.pdf
External links
Wikimedia Commons has media related to Shockley diodes. |
- Shockley diode analysis
- Shockley diode information
- http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5243983