Shockley diode
| Invented | William Shockley |
|---|---|
| Pin configuration | Anode and Cathode |
| Electronic symbol | |
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|
The Shockley diode (named after physicist William Shockley) is a four-layer semiconductordiode, 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 where manufactured and marketed by Shockley Semiconductor Laboratory in the late 1950s.
Contents
- Usages
- Typical Values
- Dynistor
- References
1 Usages
Common applications:
- Trigger Switch for Silicon controlled rectifier
- Relaxation oscillator / Sawtooth oscillator
niche applications:
- Audio Amplifier
2 Typical Values
V-I diagram
| Description | Range | Typically |
|---|---|---|
| Forward Operation | ||
| Switching Voltage Vs | 10V bis 250V | 50V +/- 4V |
| Holding Voltage Vh | 0.5V bis 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 Break down voltage Vrb | 10V to 250V | 60V |
3 Dynistor
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. Dynistors can be used as switches in Micro- and Nanosecond Power Pulse Generators.
4 References
- Michael Riordan and Lillian Hoddeson; Crystal Fire: The Invention of the Transistor and the Birth of the Information Age. New York: Norton (1997) ISBN0-393-31851-6 pbk.
- https://semiconductormuseum.com/PhotoGallery/PhotoGallery_Shockley4E30_Page3.htm
- https://semiconductormuseum.com/PhotoGallery/PhotoGallery_Shockley4E30_Page5.htm
- https://web.archive.org/web/20070221045323/https://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
- https://ieeexplore.ieee.org/document/1155602/
- https://digital-library.theiet.org/content/journals/10.1049/el_19880702
- https://przyrbwn.icm.edu.pl/APP/PDF/115/a115z627.pdf