Topics Covered

Residual impurities in silicon wafers, zone refining. Crystal imperfections: structural, optical and electronic properties . Implantation related defects, recovery of crystal structure, solid phase epitaxial regrowth (SPE). Semiconductor alloys: Structural and electronic properties: growth techniques- molecular beam epitaxy (MBE). Chemical vapour deposition (CVD): pseudomorphic and metastable structures, tetragonal distortion. Strain relaxation. Structural and optical properties of double sided heterostructures, quantum wells and superlattices; types of band alignment. Solid state heterostructural LED and LASER . optoelectronic Functionality in silicon chip . Structural and electrical study of heterojunction bipolar transistor (HBT), heterojunction avalanche photodiode, and silicon-germanium MOSFET .