Fall 2018 - If you decide take his class, that means you spend over five thousand dollar to learn nothing. If you insist on taking it, please spend most of time in self-learning. BTW, the equation he teach in the class is totally different from the textbook. Lecture is useless. None of lecture material will shows on the test. The TA can teach much better than him. Just go to the discussion session, question on the discussion will shows on the test. One last thing, the final is worth 100% and good luck!
I attended UCLA more than 10 years ago, and it's nice to know that things haven't changed all that much- namely Dr. Woo is still there and he's ranked as #2 worst professor overall and the #3 least effective professor. He had just replaced Michael J. Werter (who was known for failing 40% of the class, but those who passed considered him one of the best professors for circuit analysis). When I asked Dr. Woo in front of everyone on the 1st day of class if it's true that 40% of us will mandatorily fail his class, his response was: "I won't hesitate to fail 90% of you!" He was kind of funny though, in a politically incorrect kind of way. He had self-deprecating humor toward his own people (either that or he was a self-hater of sorts): on our 1st day of class, he said that most asian (as in "oriental" asian) people are "bannanas": "yellow on the outside, but white on the inside," which was met by collective gasps and gaffes. There is nothing prestigious about having guys like him "teaching" engineering and then failing the majority of the students because the are incompetent at teaching. UCLA School of Engineering really needs to clean house and get rid of profs who only care about their research and put in place profs who are there to PROPERLY teach the material.
Avoid if you can, the course should be named "Mathematics of semocondutors" not "PHYSICS of semiconductors" Lecture notes are basically mathematical derivations of every single equations with minimum physics. One more thing to note is that your grade will depend on whether you have the past exam scripts, not how much you know or understand.