Cubic GaN funding boost for microLEDs

Business news |
By Nick Flaherty

Kubos Semiconductors in Cambridge has raised £500,000 ($605,000, €605,000) to launch its cubic gallium nitride (GaN) LEDs into new markets such as microLEDs for AR and VR displays.

The UK startup says it has identified the potential for its proprietary material to deliver LEDs capable of switching at faster speeds than those developed in the hexagonal crystal phase and significantly boost the efficiency of green LEDs. It is using a fabless semiconductor model as the cubic-GaN on 3C-SiC/Si is fully compatible with standard LED development process on large wafers, offering lower cost volume production.

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The funding comes from existing investors including UK merchant bank Turquoise and its LCIF2 ‘greentech’ fund as well as new investors. The company, formed in 2018, raised £760,000 in 2020 with backing from the LCIF2 fund.

“We are delighted to have secured the continuing support of LCIF2 and our other shareholders and welcomed some new investors as we progress towards our technical and commercial goals,” said Caroline O’Brien, CEO of Kubos. “We are also excited about the prospect of exploiting our technology’s capabilities in new markets such as improving the efficiency of native red microLEDs for AR/VR and displays and providing high switching speed LEDs for visible light communications applications.”

Desmond Astley-Cooper, director at Turquoise, commented: “My colleagues and I are pleased to be involved with such an exciting new materials technology with many uses, including small form-factor LED devices in the future.”

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