HBT
MicroLink Devices’ current product line is used in the manufacture of heterojunction bipolar transistors (HBTs). The key feature of HBTs is that different semiconductor materials are used for the emitter and base regions, which creates a heterojunction. This allows a high density of dopants to be used in the base, which permits higher electron lifetime while maintaining DC current gain. The result is transistors that can handle signals at frequencies up to several hundred gigahertz. HBTs are commonly used in radio frequency communications applications, such as mobile phones.