0.7-μm InP DHBT technology with 400-GHz fT and fMAX and 4.5-V BVCE0 for high speed and high frequency integrated circuits

We report the performances of a 0.7- $\mu \text{m}$ InP/GaInAs DHBT developed in III-V Lab demonstrating both ${f} _{T}$ and ${f} _{\mathrm{ MAX}}$ of 400 GHz as well as a high fabrication yield and homogeneity on a 3-inch wafer. This technology is used for the fabrication of a very high speed 2:1 multiplexing selector operating up to 212-Gb/s, establishing a speed record. A 5.4-Vpp 100-Gb/s distributed differential selector-driver, as well as a 4.3-Vpp 64-GBd 8-pulse-amplitude-modulation (PAM) (192 Gb/s) high-speed power digital-to-analog converter (DAC) were also realized in this technology.