Part I of the book comprising of 7 chapters covers Microelectronics: Physics and Processing with emphasis on both Physics and microelectronic processing. The chapters on theory of junctions and on microelectronic processing will attract particular interest of the readers. Part II comprising of 8 chapters discusses pure Physics of semiconductor nanostructures discussing structure, band model and Physics of about 12 basic nanostructures in detail. Thorough discussion and extensive use of diagrams help readers become adept in drawing band model in any discussion on nanostructure Physics. The Nanostructure Physics of isolated Quantum Well and of MODFET are covered in considerable detail alongwith applications of magnetic field to nanostructures.