National Epitaxy Facility

The National Epitaxy Facility plays a central role in enabling UK university research through provision of high-quality Semiconductor Epitaxy for custom designed structures and devices.

We also play a significant role in enabling developments in UK industry with many companies utilising our expertise, knowledge and world class facilities to further their businesses. Contact us to find out how we can help you with our facilities, expertise and consultancy services.

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Our Epitaxy Offer

Molecular Beam Epitaxy (MBE) growth production is provided at the University of Sheffield and University College London

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Metal-Organic Vapour Phase Epitaxy (MOVPE) growth production is provided at the University of Sheffield and the University of Cambridge

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Take a virtual tour of our facility

View our ‘Virtual Tour’ to see our cleanroom facilities.

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If you want to work with us and utilise our world class expertise and facilities in the development of III-V and Silicon Technologies please contact us to see how we can help you with our facilities, expertise and consultancy services.

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NEF over 45+ years

The National Epitaxy Facility timeline shows our highlights from the past 45 years.

Our History

ISO9001 Certified Service

The Quality Management System employed at the National Epitaxy Facility has been ISO9001 certified since 2014. This demonstrates the quality of our epitaxial material, our customer focus, and our dedication to continuous improvement, enabling world-class semiconductor research in the UK.

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Latest News

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February 24, 2026

Providing high-quality epitaxial wafers for over 45 years enabling world-class semiconductor research

Our Epitaxy Offer

MBE

MOVPE

Take a virtual tour of our facility

Access our facility

NEF over 45+ years

ISO9001 Certified Service

““This wafer was instrumental in advancing our project and the wider 1550 nm quantum dot field, establishing a new performance benchmark”

“My discussions and consultations with NEF staff about my wafter requirements have always been productive, helpful and friendly. The NEF is an essential facility for the benefit of the entire UK semiconductor community.”

“The NEF team were very responsive and provided excellent expert advice and support, as always. The quantum wells were of very high quality with narrow exciton linewidth and homogeneous across the wafer.”

“I received the exact structure I designed in a short time, and the staff were very supportive throughout the process. I’m pleased with this collaboration between PSI and NEF and will definitely consider NEF again for my future research.“

“Wafer delivery in time. The impressive performance of the fabricated devices is especially commendable, considering that this is just the first sample.“

“A swift answer even when we needed to make changes. I have also interacted regularly with NEF staff and found them to be extremely knowledgeable scientifically and I value their expertise.”

“Excellent interaction, technical support and timely response!”

“The wafer arrived a lot quicker than expected and Zofia was very helpful and always quick to respond to emails.”

“Communications were always timely and useful. On the ‘responsiveness to innovation’, the addition of Te exceeds expectations. This is particularly important from the perspective of scaling towards industry, with IQE plc. now offering highly doped Te as standard for n-type.”

“The staff were really helpful in assisting with tweaking any initial design to the facilities capabilities. The quote was returned in advance of our deadline. The staff made every effort to help design samples that will make a successful research programme.”

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