While preparing for the class, I come across this useful youtube video that will be able to assist you (definitely it did assist me!) in understanding the materials:
The above youtube video describe qualitatively the different between conductors, insulators, and semiconductors. It gives very clear illustrations on each type of materials.
The above describes the valence electrons (4 for the case of semiconductors) when it is in a crystal structure. The video compares with that of insulators and conductors valence electrons.
This video illustrates qualitatively the difference between intrinsic and extrinsic semiconductors. The only thing this video does not describe is the quantitative description about the the intrinsic and extrinsic semiconductors with respect to carrier concentration in valence band, conduction band as well as the introduction of the intrinsic carrier concentration. Recombination and generation of EHP quantitatively is also missing in this video. Treat this video as complementary material in helping you visualizing what I am going to talk in the class.
Happy Reviewing!
3:50 pm 19th March, 2012
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ReplyDeleteAs i was looking for resources to complete my tutorial, i came across a set of lecture notes and slides from previous years and made a few comparisons. It turns out that what is being taught now is much too detailed and intense as compared to what was taught to the seniors. So i had an exchange of words with them and they too agreed in saying that the current syllabus is way beyond what was required as fundamentals for later subjects like Analog I & II. This discovery has put me in quite a confusing disposition. Reading the textbook itself does not help my understanding because of the depth it covers.
ReplyDeleteWith this, i really hope that u would cover only what is necessary, ie the qualitative illustrations from the videos u uploaded is as sufficient as it gets (according to the seniors) without the tedious quantitative parts. Also, derivations of complicated formula's that only bring more confusion rather clarity, and lastly, plz consider using the previous syllabus as your guide so that we don't stray too far from what is needed to be understood...
This is just my two cents Dr Tun, nonetheless, changes HAVE to be made before everyone goes on a failing frenzy..plz..plz..plz =)