IQE plc is a United Kingdom-based holding company. The Company is engaged in the research, development and provision of engineering consultancy services to the compound semiconductor industry. The Company's segments include wireless, photonics, Infra Red and CMOS++. The Company is the manufacturer and supplier of Compound Semiconductor wafers or epiwafers using a process called epitaxy. Its photonics business enables a range of end applications, from data communications and advanced optical-fibers, to sensors in consumer and industrial applications. It operates through business units, including wireless, photonics, InfraRed, CPV (advanced solar), power switching, light emitting diodes (LEDs) and advanced electronics. It produces atomically engineered layers of crystalline materials containing a range of semiconductor materials, such as gallium, arsenic, aluminum, indium and phosphorous. The Company has operations in the United States, Asia and Europe.