ELEN E6140x Gallium Arsenide Materials Processing Lect: 3. 3 pts.Not offered in 2009-2010. Prerequisites: ELEN E4301 or the instructor's permission. Materials and device aspects of GaAs and compound technologies, electronic properties of GaAs, growth techniques (bulk and epitaxial), surface and etching properties, implantation, MESFETS, transferred electron devices, Impatt diodes, HEMTS, HBTs.