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Z2 – Lithographically fabricated IC in a garage fab

(sam.zeloof.xyz)
356 points embedding-shape | 3 comments | 07 Dec 25 03:03 UTC | HN request time: 0.504s | source
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mwcz ◴[07 Dec 25 05:56 UTC] No.46179490[source]▶
The timing of this share is crazy, since I was just looking around a few days ago to see if there were any guides or even kits for doing photolithography at home. It's part of my mission to demystify modern technology for my kids. I couldn't find anything, so this is excellent to see. Far too complex for my kids ages, but it might be cool to replicate at least part of this amazing project when they're older.
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1. duped ◴[07 Dec 25 06:57 UTC] No.46179767[source]▶
Silk screen printing is probably the easiest way to introduce the concepts to kids. There are a lot of maker spaces/artist collectives and classes that have the basic tools and resources to do it.
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2. semi-extrinsic ◴[07 Dec 25 07:59 UTC] No.46180042[source]▶
Or even gel plate printing, where you get to build multiple layers, one of them being a laser printed photo that is used as a resist.
3. snek_case ◴[07 Dec 25 11:42 UTC] No.46181039[source]▶
You could also try to replicate something like the Monster 6502: https://monster6502.com/

It's not lithography, but you can build a working processor out of small surface mount chips, and you can solder these chips with lead-free solder. That seems very achievable for a motivated engineer, and probably involves much less toxic chemicals?