Company profile
Plessey Semiconductors
Plymouth manufacturer developing gallium nitride micro-LED displays on silicon wafers, operating its own fabrication facility for augmented reality applications.
Company overview
Plessey Semiconductors designs and manufactures photonic devices and systems at its integrated facility in Plymouth, UK. The company operates across two main areas: developing high-brightness microLED displays for augmented reality, head-up displays, and consumer electronics; and creating photonic devices for optical interconnects to improve data transfer efficiency in AI infrastructure and data centres. Plessey's capabilities cover the entire process from research and IP development through to volume production, utilising its expertise in GaN-on-Si (Gallium Nitride on Silicon) technology. The company operates from its main fabrication site in Plymouth and an office in Oxford. According to its website, Plessey was acquired by Haylo Labs.
Semiconductor activity
Primary capability: Photonic Semiconductor Devices. Supply-chain role: Design, Manufacturing, Research & Development, IP Licensing, Materials.
Technologies and capabilities
- Gallium Nitride / GaN
- Photonics
- MicroLED
- Optical Interconnects
- GaN-on-Si
- Gallium Nitride
- Silicon
MicroLED Displays; Optical Interconnect Devices; Photonic Devices; Photonic Systems
Markets served
- Augmented & Virtual Reality
- Data Centres
- AI Infrastructure
- Automotive
- Aerospace
- Consumer Electronics
UK presence
Plymouth, England. Other UK sites: Oxford, England.