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Hackaday Supercon - Sam Zeloof Home Chip Fab: Silicon IC Fabrication in the Garage - YouTube
"It takes about 66 steps and 12 hours total to make these (..)
Semiconductor devices [work by] having non-linear characteristics (..)
Non-linear characteristics engineered with doping (N-type: extra electron, P-type: absence of electron in lattice) (..)
Doping: in industry this is done using ion implantation (..) you could not attempt this at home (..) basically [it is] a massive particle accelerator and it uses voltages of hundreds of thousands of Volts to a million Volts, accelerates the atom you want to dope the silicon with and slams it into the waver (..) the second reason why ion implantation is ridiculous[:] (..) if you want to dope with phosphor and boron - that's phosphine and diborane gas (..) those are two of the worst gases you could ever deal with, and something like 50 parts per million is lethal to humans; you don't even have to breath it, it will go into your skin (..)
I found the best way to get boric acid is Roach and Ant killer, it's on Amazon, you can buy this for 10 bucks (..)
Solar cell using phosphoric acid from Coca Cola (..)
Hyrofluoric acid: Rust Stain Remover (..)
Modern ICs can have 8+ metal layers"
ic  semiconductor  chips  electronics  complexity  diy  chemistry  vacuum  amazon  sophistication  supercon 
3 days ago by gohai

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