this post was submitted on 07 Jul 2023
143 points (99.3% liked)
Asklemmy
43812 readers
906 users here now
A loosely moderated place to ask open-ended questions
If your post meets the following criteria, it's welcome here!
- Open-ended question
- Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
- Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
- Not ad nauseam inducing: please make sure it is a question that would be new to most members
- An actual topic of discussion
Looking for support?
Looking for a community?
- Lemmyverse: community search
- sub.rehab: maps old subreddits to fediverse options, marks official as such
- [email protected]: a community for finding communities
~Icon~ ~by~ ~@Double_[email protected]~
founded 5 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
Damn, he's got a lot of equipment though. I was hoping I could just setup a jig with 2x4s and melt sand with a blowtorch
Most of it isn't strictly necessary. Like, he has sputtering equipment for making layers that can't be chemically deposited for example. The one where he makes a MOSFET on camera involves just spin coating with tape and some random motor, a little tube furnace to bake impurities in and chemical etching IIRC.
He uses commercially available blank wafers; you'd need a small arc furnace (or at least a blast furnace and patience when your product is mostly iron) to make silicon from sand and something resembling a meth lab to clean it (and then you'd grow and cut your wafer, but that could be done on a desk I'm sure).