I find really impressive about the way you explain about the fundamentals of P-N junction.
In fact, it is the best-suited website for me, since I can not find other websites which provide me such essential knowledge about the working principles of semiconductor devices. However, I feel a little inconvenient as I have to read it from the Internet. I really want to own a pdf version of the P-N junction chapter cause I can have it as a book to read whenever I want. So, would you mind sending me a pdf version. My email address is : email@example.com
It would be a great pleasure for me as receiving the pdf files from you.
Same point as Nguyen Huy - it'll be much easier for me to read everything as a PDF