Sounds very innovative and interesting thing you are working on.

Surely there are p-type n-type substrates available. Check out the
following for example:

http://www.siliconquest.com/eng/products/index.htm
http://svmi.com/wafers/grade/

All the Best!

Waiting for your paper,
Sudhanshu
India

~*~

On Mon, 9 Aug 2004, Sarah C Mcquaide wrote:

>
>
>
> Does anybody know whether anyone manufactures Si wafers that are p- and
> n-type doped completely through the total thinkness of the wafer? The
> thickness of the wafer does not matter to me; I need to make small
> (micron-sized) dopes Si "powder", and thus would like to buy pre-doped
> wafers to grind up. Alternatively, has anyone heard of doping
> micron-sized Si pieces in a furnace, and whether there are any problems
> with doing this?
>
> Thanks!
> Sarah McQuaide
> Research Engineer
> University of Washington Genomation Lab
>
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