An integrated circuit including a bipolar transistor with improved forward
second breakdown is disclosed. In one embodiment, the bipolar transistor
includes a base, a collector, a plurality of emitter sections coupled to
a common emitter and a ballast emitter for each emitter section. Each
ballast resistor is coupled between the common emitter and an associated
emitter section. The size of each ballast resistor is selected so that
the size of the ballast resistors vary across a two dimensional direction
in relation to a lateral surface of the bipolar transistor.