RF GaN is growing, but will it ever make it in phones? NOVEMBER 21ST, 2019 - BY: MARK LAPEDUS Wide-bandgap semiconductors are hot topics these days. One wide-bandgap semi type–silicon carbide (SiC)–is the talk of the town and is gaining steam in electric vehicles and other systems. But let’s not forget about gallium nitride (GaN). GaN, a binary III-V material, has 10 times the breakdown field strength with double the electron mobility than silicon. GaN is used for LEDs, power electronics and RF. While GaN-based power semiconductors are heating up, the RF version of GaN is taking off. In 2018, sales of RF GaN-enabled devices grew by nearly 22%, according to Strategy Analytics. By 2023, the RF GaN device market will surpass $1.7 billion, according to the firm. Cree, Qorvo and Sumitomo are among the big suppliers of RF GaN. For years, RF GaN was a niche-oriented technology used in the military/aerospace community, namely for radar. Then, the technology q...