Materials in Intel Processors?

[MJCfromCT]

I am creating a thermal model of an Intel processor, and have a few details I was hoping to get filled in.

First, I'm creating a model of one of these guys:

It is a P4 Northwood. I've got some questions regarding dimensions and materials used in the construction of these processors.

In this exploded view (taken from an Intel .pdf),

...does anyone know the material that the substrate is made out of?

Also, what are the dimensions of the actual chip under the heat spreader?

Is the chip itself created primarily out of silicon, or are there other materials as well?

The same with the heat spreader, does anyone know what material this is made from?

Sorry for the long list of questions, and thanks in advance for your help.

 

[aethelwulf]

Not unlike Honda.... Intels run on hopes and dreams. Hopes and dreams...

 

[MJCfromCT]

Alrighty, even though your link is to a different generation of Intel chip, I found the corresponding .pdf for the one I need, and the materials are the same. It also had some dimensions that I can possibly back out the die size from. So thank you for that.

I guess that leaves one question left, the material that the actual die is created from. Silicon as the primary material I assume?