ST and Macom make RF GaN-on-Si prototypes
Devices meet cost and performance targets and move effort to qualification stage
STMicroelectronics and Macom Technology Solutions have announced the successful production of RF GaN-on-Si prototypes.
The companies say that prototype wafers and devices manufactured by ST have achieved cost and performance targets that would allow them to effectively compete with the incumbent LDMOS and GaN-on-SiC technologies on the market.
These prototypes are now moving to the next big milestones – qualification and industrialisation. ST is on target to hit these milestones in 2022. With this progress, ST and Macom have begun discussions to further expand their efforts to accelerate delivery of advanced RF GaN-on-Si products to the market.
“Together, we continue to make good progress in moving the GaN-on-Si technology towards commercialisation and high-volume production,” said Stephen G. Daly, Macom president and CEO. “Our collaboration with ST is an important part of our RF Power strategy and I am confident that we can win market share in targeted applications where the GaN-on-Silicon technology meets the technical requirements.”
RF GaN-on-SiC can be more expensive because of the competition for SiC wafers from high-power applications and because of its non-mainstream semiconductor processing. On the other hand, the GaN-on-Si technology under development by ST and Macom is expected to offer competitive performance paired with large economies of scale, enabled by its integration into standard semiconductor process flows.