[Libre-silicon-devel] sam zeloof home-made IC

David Lanzendörfer leviathan at libresilicon.com
Sat Aug 14 19:56:05 CEST 2021


Where I just have been living for a long time laws are just there so that 
people can find ways around them, so yeah, besides potentially building a 
simple plasma etcher by using this magnetron sputter setup from Hackaday and 
running it in reverse, we might also try to find ways to buy those chemicals 
in diluted form and then turning it into a more concentrated form in our 
lab... hmm

On Saturday, August 14, 2021 6:47:28 PM WEST Dilek Isik Akcakaya wrote:
> Lets build a plasma etch system on the side then :)
> 
> Sent with ProtonMail Secure Email.
> 
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> 
> Ferenc Éger <eegerferenc at gmail.com> 14 Ağustos 2021 Cumartesi saat 08:31 
tarihinde yazdı:
> > Hello Everyone,
> > 
> > As for poly-Si etching our never-ending problem came across again:
> > 
> > http://sam.zeloof.xyz/second-ic/
> > 
> > https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32019R1148
> > 
> > He is probably not an European guy... And Europe aims to be on the map
> > 
> > in terms of scientific progress... Never mind, we need no amateurs. Just
> > 
> > spill a ton of public money onto our for-profit firms, they will solve
> > 
> > everything in the right way. < / rant >
> > 
> > The problem is nitric acid, that is visible outright. The n-dopant is
> > 
> > also likely no-go (I did not find explicitly, but knowing how the
> > 
> > legislators think, they may crap their pants on the word "phosphorus
> > 
> > compound"). Any idea on solving this?
> > 
> > Regards,
> > 
> > Ferenc
> > 
> > On 14/08/2021 14:13, David Lanzendörfer wrote:
> > > Hi
> > > 
> > > Yes. That's what I'm planning to do as well.
> > > 
> > > The idea just was to design a bit more compact stepper, which can also
> > > be
> > > 
> > > scaled up and sold for professional industrial environments, considering
> > > that
> > > 
> > > the furnace costs 3200 USD and I've got to get the cash back in :-)
> > > 
> > > Cheers,
> > > 
> > > lev
> > > 
> > > On Saturday, August 14, 2021 9:44:11 AM WEST Luke Kenneth Casson
> > > Leighton
> > > 
> > > wrote:
> > > > https://www.youtube.com/watch?v=IS5ycm7VfXg
> > 
> > Libresilicon-developers mailing list
> > 
> > Libresilicon-developers at list.libresilicon.com
> > 
> > https://list.libresilicon.com/mailman/listinfo/libresilicon-developers
> 
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