The Bipolar Junction Lab in ABACUS allows Bipolar Junction Transistor (BJT) simulation using a 2D mesh. It allows users to simulate either the npn- or pnp-type of device. Users can specify the emitter, base and collector region depths and doping densities. Also the material and minority-carrier lifetimes can be specified by the user. The tool is supported by a homework assignment in which students are asked to find the emitter efficiency, the base transport factor, current gains, and the Early voltage. Also, students are requested to provide a qualitative discussion.
There is a dedicated group page for Faculty Only, where further assignments and solutions are shared. Access to that group is granted on an individual basis.