Solid State Electronic Devices has been written for the undergraduate students of Electronics and Electrical Engineering. The book caters to introductory and advance courses on Solid State Devices. It is student-friendly and written for those who like to understand the subject from a physical perspective. Even teachers and researchers will benefit immensely from this book. This thoughtfully-organized book provides intense knowledge of the subject with the help of lucid descriptions of theories and solved examples and covers the syllabus of most of the colleges under WBUT.