University of Essex Nanofab

These pages provide an overview of the semiconductor device research and teaching nanofabrication facilities

Semiconductor Lasers and Heterojuction LEDs

Henry Kressel & J.K.Butler A.P.1977 "To facilitate contacts on (AlGa)As with sufficiently low resistance for CW laser operation, a ~1um thick GaAs 'cap' layer is commonly used on such heterojunction devices. The preferred method of attaching leads consists of using a soft solder such as indium because of the possibility of damaging the device with thermocompression bonding." p.402

laser diodes

These pages are written & maintained by Adrian Boland-Thoms