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Specialized Diodes

By adjusting the doping levels and gradients as well as the geometry of a semiconductor crystal, we can modify the behavior of the device. This page lists a wide range of diodes whose properties have been deliberately controlled to produce specific capabilities.

Each of these specialized diodes has its own schematic symbol, shown to the right of its description below. The symbols are all specific variations on the basic diode symbol, so that the nature and function of the device is clear on a schematic diagram.




Experimentation is always in progress, and new applications are invented regularly. As new diode types come to my attention, I will add them to the list above. If you should hear of a diode type not yet in the list, please contact the webmaster and let me know there. I will research the device and add it as quickly as possible. Thanks.


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