I want to preface this by saying that 183 is a retarded class and I don't think we should be forced to take it. now, when it comes to teaching, Hahn is a horrible horrible teacher. One time 3 of the 80 people enrolled went to lecture but what disturbs me is that he knows no one pays attention or listens to him but he is just as happy coming to class every other day and talking to himself for two hours. if it was me I would've quit the second day. his midterm and final were easy as hell. they're all the homework problems and end of chapter quizzes. I got an A and I didn't learn anything. I am not exaggerating when I say that. if I was to grade myself based on my knowledge of manufacturing I would give myself a C- but he gave me an A which just goes to show that he agrees with me on how useless this class is. plus I wish we had spent less time reviewing material science and more time learning modern manufacturing. we did IC, IC packaging, MEMS which are 3 chapters and ~300 pages in the last lecture and we didn't have time to cover nanotechnology (not that I learned anything about the ones we did). if they had asked me I would have skipped the first 8 chapters that we did in the fist 6 weeks and spent 10 weeks on the 10 chapters we did in the last 4 weeks. but they didn't ask me. oh and one time I sent him an email asking him something, he didn't even answer it. I don't like this guy as my teacher but he seems like a nice person.