Varactor Diode

Varactor Diode allow you to select from various doping profiles, spanning all commonly used concentration profiles, from hyperabrupt, over abrupt to linear. The corresponding characteristic of the diode is calculated and displayed.

In practice, theoretical doping profiles as assumed by the simulation program can be obtained only with difficulty. Complicated diffusion processes cause non-constant concentration-dependent diffusion coefficients and therefore result in deviations from the ideal dopings. Diodes are usually manufactured with complex technologies such as multiple diffusion or multiple implantation.