IQE's Wafer Technology division to lead £2 million 4" GaSb Thermo-Photovoltaic (TPV) project ear end trading update

17 February 2009

Milton Keynes, 17 February 2009. IQE plc (AIM: IQE, “IQE” or the “Group”), the leading global supplier of advanced semiconductor wafer products and wafer services to the semiconductor industry, is pleased to announce that its Milton Keynes based wafer operation, Wafer Technology Ltd., will lead a collaborative effort to develop highly efficient thermo-photovoltaic (TPV) cells for electricity generation from waste heat from industrial processes.
The £2M project has been awarded by the Technology Strategy Board. Wafer Technology will lead a consortium of partners including Lancaster University and QinetiQ.
The project aims to realise novel low bandgap TPV devices based on alloys including InAsSb and InGaSbN lattice matched to GaSb substrates. Such cells will exhibit significantly higher efficiencies than existing devices and will more effectively generate electricity from waste heat sources at temperatures below 1000ºC.
Wafer Technology’s contribution will be to extend their world leading GaSb substrate technology to 4” diameter. Lancaster and QinetiQ will undertake epitaxial growth studies of these novel narrow gap alloys and QinetiQ will also fabricate the devices. Prototype TPV systems will be validated by two further industrial partners to assess their performance in real industrial processes and environments.
Commenting on the project, Dr Mark Furlong, Sales and Marketing Director at IQE’s Wafer Technology Division said: “Thermo-voltaic cells will play an important role in the drive towards providing an efficient and cost effective way of recovering waste energy from a wide range of industrial processes and recycling that energy into electricity. TPV’s add to the growing portfolio of the Group’s energy efficient products that include ultra high brightness LEDs and high efficiency concentrator-photovoltaic (CPV) solar cells.”

Wafer Technology Limited (+44 19 0821 0444) Becky Martinez IQE plc (+44 29 2083 9400) Chris Meadows

Note to Editors
IQE is the leading global supplier of advanced semiconductor wafers with products that cover a diverse range of applications, supported by an innovative outsourced foundry services portfolio that allows the Group to provide a 'one stop shop' for the wafer needs of the world's leading semiconductor manufacturers.
IQE uses advanced crystal growth technology (epitaxy) to manufacture and supply bespoke semiconductor wafers ('epi-wafers') to the major chip manufacturing companies, who then use these wafers to make the chips which form the key components of virtually all high technology systems. IQE is unique in being able to supply wafers using all of the leading crystal growth technology platforms.
IQE's products are found in many leading-edge consumer, communication, computing and industrial applications, including a complete range of wafer products for the wireless industry, such as mobile handsets and wireless infrastructure, Wi-Fi, WiMAX, base stations, GPS, and satellite communications; optical communications, optical storage (CD, DVD), laser optical mouse, laser printers & photocopiers, thermal imagers, leading-edge medical products, barcode, ultra high brightness LEDs, a variety of advanced silicon based systems and high efficiency concentrator photovoltaic (CPV) solar cells.
The manufacturers of these chips are increasingly seeking to outsource wafer production to specialist foundries such as IQE in order to reduce overall wafer costs and accelerate time to market.
IQE also provides bespoke R&D services to deliver customised materials for specific applications and offers specialist technical staff to manufacture to specification either at its own facilities or on the customer's own sites. The Group is also able to leverage its global purchasing volumes to reduce the cost of raw materials. In this way IQE's outsourced services, provide compelling benefits in terms of flexibility and predictability of cost, thereby significantly reducing operating risk.
IQE operates six manufacturing facilities located in Cardiff (two) and Milton Keynes in the UK; in Bethlehem, Pennsylvania and Somerset, New Jersey in the USA; and Singapore. The Group also has 11 sales offices located in major economic centres worldwide.