What processes are involved in silicon refinement and how many different types of processes are there and what are the end results of each process?

Do the people who work in these fields study EEE of physics/chemistry?

 

Hello,

Have a look at the following wiki pages:
http://en.wikipedia.org/wiki/Silicon
http://en.wikipedia.org/wiki/Monocrystalline_silicon
http://en.wikipedia.org/wiki/Czochralski_process

Bertus