Internal structure of a cpu

[atc_traffic856]

Would some one direct me to a good site for information on the internal structures of a modern CPU? The information I seek is "what is the physical material that separates the CPU registers"? Example as to its elements metal, silicon et-cetera.
The comparison of wall structures between Notebooks and Desktop CPU's are they different in width or structure?
Thank you for your support>>

[Paul Komski]

A couple of links - for starters anyway:

http://www.intel.com/education/makingchips/
http://www.pcguide.com/ref/cpu/char/pack.htm
http://en.wikipedia.org/wiki/Semiconductor_device
http://en.wikipedia.org/wiki/Semiconductor_fabrication

[saphalline]

Which CPU? The materials have changed significantly over time. At least one change is made every year, and vast differences appear every 7-10 years. Even something as recent as a Pentium III barely looks like a modern CPU.