BIPOLAR TRANSISTOR DEVICE WITH EMITTER HAVING TWO TYPES OF EMITTER REGIONS

摘要

PROBLEM TO BE SOLVED: To provide a bipolar transistor device with an emitter having two types of emitter regions.SOLUTION: A bipolar semiconductor device comprises: a semiconductor body 100 having a first surface; and a base region 10 of a first doping type and a first emitter region 20 in the semiconductor body. The first emitter region adjoins the first surface and comprises a plurality of first type emitter regions 21 of a second doping type complementary to the first doping type, a plurality of second type emitter regions 22 of the second doping type, a plurality of third type emitter regions 23 of the first doping type, and a recombination region 24 comprising recombination centers.SELECTED DRAWING: Figure 1