[volt-nuts] DIY JJ was Re: HP 3458A

[Marvin E. Gozum]

Yes, they would have to manufacture to very specific tolerances, far 
more than a simple transistor.  So far, I've not read of any reports 
including college projects, of manufacturing a quality semiconductor 
that would represent the needed engineering skills and gear to begin, 
except this:

http://vimeo.com/2423528


It may take more time than a 4 year college degree.

<http://vimeo.com/jeri>Jeri Ellsworth may have it; but one has to 
dedicate substantial resources to simply tool for the project then 
develop skills to execute the fab.  A key is understand the 
processes, and not take as a cook book what she presents nicely, 
because refinement and modification will be needed to extend this 
process.  She clearly tries to do that as she can continue to refine 
her labs gear and skills, all with OTS and salvage parts!


http://en.wikipedia.org/wiki/Jeri_Ellsworth


P.S. She suggests she has an electron microsocope at her lab, to 
track her developments so one can see where depositions are going.


At 09:12 AM 8/9/2011, Chuck Harris wrote:
>I have a nice little vacuum deposition system that is capable of doing
>just that sort of thing... the masks would be the major hurdle to cross.
>
>College kids use the same sorts of systems to make their own photocells,
>and organic LED's as a lab exercise.
>
>-Chuck Harris



Sincerely,



Marv Gozum
Philadelphia, PA