Electronics is a field that has immense importance in almost every field of science. Electronics has been contributing a lot to the present day technology. Understanding about semiconductor devices could be real fun and full of enthusiasm for any electronics engineering student. It is such a vast area and lots of present day applications have been derived from that technology. So it would be really interesting if one chooses mini projects on semi conductor devices because it scales an array of applications over the last two decades. It would also help you to come in grips with the science, mechanisms and phenomenon underlying the technology.