Asad wrote:

HI,

How can I perform doping of silicon manually?

Asad

Why, with precision tooling and steady hands of course! I recommend a
clean room envoirnment.

If you really are serious, I'd recommend typing in 'silicon
semiconductor manufacture' in Google.

Overheard at handmade transistor stand: "Would you like 'P' or 'N' on
that?."

-Robert
'Manufacturers point contact diodes in his spare time.'