5G and beyond PA applications push the performance of CMOS, SOI, SiGe, GaAs, GaN and InP semiconductors for operating frequency, output power and efficiency. SiGe HBT PAs currently find a sweet spot with 5G NR and Ka-band PA applications with broad bandwidth, high efficiency and good linearity at output power levels typically required. The III-V technologies such as GaAs and GaN with higher breakdown voltage characteristics shine in high output power applications compared to silicon devices; however, their physically larger size significantly hampers their integration into large antenna arrays. No one technology delivers the "super" PA that satisfies all design specifications.