This companion to "Fundamentals of Solid-State Electronics - Study Guide" provides the solutions to selected problems listed in the book. Most of the solutions are for selected assigned problems from an introductory device core course taught to engineering undergraduates at the University of Florida from 1991 to 1996. The manual also contains an extensive appendix on state-of-the-art transistor reliability physics and engineering discussions and solutions which have been taught to advanced undergraduate and graduate students at that university.