Professor David Wallis
Professor - Compound Semiconductors
Academic Interface Director, Institute for Compound Semiconductors
- wallisd1@cardiff.ac.uk
- +44 (0)29 2087 9065
- Room S/1.08, Queen's Buildings - South Building, 5 The Parade, Newport Road, Cardiff, CF24 3AA
- Available for postgraduate supervision
Overview
Gallium Nitride is a new semiconductor that is delivering a revolution in the performance and efficiency of LEDs and transistors. My research focuses on the development of epitaxial growth and device technologies in this material. In particular, I am developing GaN on Si that will deliver the next generation of low cost GaN electronic devices and cubic-GaN, which will significantly improve the efficiency and quality of LED lighting. I have also recently launched a spin-out company, Kubos semiconductors, which will commercially develop the cubic GaN growth technology based on my research.
Biography
I currently hold a join chair in Compound semiconductors between the Universities of Cardiff and Cambridge and I am also an EPSRC Manufacturing fellow. Before taking up my current academic position I was employed by Plessey Semiconductors and was responsible for setting up their GaN growth capability and the technology transfer of the GaN on Si growth technology that they aquired from the University of Cambridge to enable the launch of their GaN on Si LED products. Prior to this I worked for QinetiQ Plc for 14 years and was technical lead for their GaN growth and characterisation capability. This role was largely focused on the development of GaN based RF devices. I recieved my PhD in Microstructural Physics from the University of Cambridge.
Publications
We are currently unable to retrieve the list of publications. Visit our institutional repository.ID | Title | Funder | Dates | Value | PI/CoI | ||
EP/R01146X/1 |
| EPSRC | 2/18 –1/21 | £493k | PI | ||
EP/R03480X/1 | 'Hetero-print': A holistic approach to transfer-printing for heterogeneous integration in manufacturing | EPSRC | 6/18 – 5/23 | £5.5M | CoI | ||
EP/P00945X/1 | Integrated GaN-Diamond Microwave Electronics: From Materials, Transistors to MMICs | EPSRC | 1/17 - 12/21 | £4.3M | CoI | ||
EP/N017927/1 | Integration of RF Circuits with High Speed GaN Switching on Silicon Substrates | EPSRC | 5/16 - 4/19 | £2.4M | CoI | ||
EP/P03036X/1 | Vertical cubic GaN LEDs on 150mm 3C-SiC substrates | IUK | 2/17 - 7/18 | £208k | PI | ||
EP/N01202X/2 | EPSRC Manufacturing Fellowship in Gallium Nitride | EPSRC | 3/16 - 2/21 | £1.3M | PI | ||
103446 | GaNSense | IUK | 10/17-12/18 | £306k | CoI | ||
EP/S01005X/1 | Non-linear (large signal) Millimetre-wave Devices, Circuits and Systems On-Wafer Characterization Facility | EPSRC | 10/18 - 9/19 | £1.4M | CoI | ||
EEF6084 | Energy Entrepreneurs grant | BEIS | 10/18 - 9/20 | £690k | PI |
Supervision
I am interested in supervising PhD students in the area of
- GaN growth
- GaN characterisation
- GaN devices