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Edit: whoops, thought this was ask HN due to the question mark. Pretty cool stuff. Sam Zellof (YouTube) is probably your best answer. My project civboot.org is

Edit: whoops, thought this was ask HN due to the question mark. Pretty cool stuff. Sam Zellof (YouTube) is probably your best answer. My project civboot.org is basically an attempt to answer a similar question and my answer is: reduce the complexity of technology and then build the simplified but effective systems. It's not going to be "at home" (the tech is way too complicated for that) but it could be a university or similar (hopefully).

hwillis 3y ago
http://sam.zeloof.xyz/first-ic/ http://sam.zeloof.xyz/first-ic/ This is one of the things where the details of the "booting civilization" situation matter a LOT. If you can find a Blu-ray player, it'd be much easier for you to make something like Breaking Taps did- no need for a projector or computer, you could even do this by hand using an optical relay. However it's VERY hard to make an appropriate UV laser[1], and it's very hard to make a photoresist that works in infrared where a CO2 laser is easy to make. In that case you have to use a projector. For a while I've wondered how feasible it would be to use an electron microscope to just ablate everything. Shockingly easy to make for such an excellent instrument. [1]: Ironically the easiest type of laser to make is a UV nitrogen laser, but it's extreme power and short (nanosecond) pulse time mean you can't use it for this: http://www.repairfaq.org/sam/lasercn2.htm#cn2cn20 http://www.repairfaq.org/sam/lasercn2.htm#cn2cn20
- zmgsabst 3y ago
  What would be needed to do something like electron milling/ablation?
- bruce343434 3y ago
  > For a while I've wondered how feasible it would be to use an electron microscope to just ablate everything. Wouldn't that take forever? And a lot of power?
- gorkish 3y ago
  > For a while I've wondered how feasible it would be to use an electron microscope to just ablate everything. Given the fact that we are more or less up to the limits of optical lithography, the future is quite probably going to be figuring out how to scale direct e-beam litho up to mass production rates.

hwillis 3y ago

http://sam.zeloof.xyz/first-ic/ http://sam.zeloof.xyz/first-ic/ This is one of the things where the details of the "booting civilization" situation matter a LOT. If you can find a Blu-ray player, it'd be much easier for you to make something like Breaking Taps did- no need for a projector or computer, you could even do this by hand using an optical relay. However it's VERY hard to make an appropriate UV laser[1], and it's very hard to make a photoresist that works in infrared where a CO2 laser is easy to make. In that case you have to use a projector. For a while I've wondered how feasible it would be to use an electron microscope to just ablate everything. Shockingly easy to make for such an excellent instrument. [1]: Ironically the easiest type of laser to make is a UV nitrogen laser, but it's extreme power and short (nanosecond) pulse time mean you can't use it for this: http://www.repairfaq.org/sam/lasercn2.htm#cn2cn20 http://www.repairfaq.org/sam/lasercn2.htm#cn2cn20

zmgsabst 3y ago
What would be needed to do something like electron milling/ablation?
bruce343434 3y ago
> For a while I've wondered how feasible it would be to use an electron microscope to just ablate everything. Wouldn't that take forever? And a lot of power?
gorkish 3y ago
> For a while I've wondered how feasible it would be to use an electron microscope to just ablate everything. Given the fact that we are more or less up to the limits of optical lithography, the future is quite probably going to be figuring out how to scale direct e-beam litho up to mass production rates.