An InP-based single-heterojunction bipolar transistor (SHBT) with base μ-bndge and emitter air-bridge is reported. Because those bridges reduce parasitic capacitance greatly, the cutoff frequency fT of the 2μm ×1...
An emitter self-aligned InP-based single heterojunction bipolar transistor with a cutoff frequency (fT) of 162GHz is reported. The emitter size is 0.8μm × 12μm, the maximum DC gain is 120, the offset voltage is 0...
We report the performance of the first self-aligned InP/InGaAs double heterojunction bipolar transistor (DHBT) produced in China. The device has a 2μm × 12μm U-shaped emitter area and demonstrates a peak common-e...
A self-aligned InP/GalnAs single heterojunction bipolar transistor(HBT) is investigated using a novel T-shaped emitter. A U-shaped emitter layout,selective wet etching,laterally etched undercut, and an air-bridge ar...