cutoff peak
2.The device has a 2μm×12μm U-shaped emitter area and demonstrates a peak common-emitter DC current gain of over 300,an offset voltage of 0.16V,a knee voltage of 0.6V,and an open-base breakdown voltage of about 6V.The HBT exhibits good microwave performance with a current gain cutoff frequency of 80GHz and a maximum oscillation frequency of 40GHz.

