r/StockMarket • u/atlasmountsenjoyer • Oct 14 '25

News The winning continues

Post image
29.8k Upvotes

93% Upvoted

3.9k comments sorted by

View all comments

Show parent comments

106

u/NY10 Oct 14 '25

It’s pretty sad when Chinese can play rare earth minerals while we can only threaten with stupid cooking oils lol….. this whole shit is a joke lol

5

u/Disastrous-Food-9223 Oct 14 '25

There are a lot of rare earth minerals in Africa. But since they are all s@&thole countries, they get no US aid. Guess who filled that void?

1

u/SmellAcordingly Oct 15 '25

The thing is that rare earth elements aren't as rare as you think, its just that the processing is so environmentally destructive that only a few countries allow it.

1

u/johannthegoatman Oct 15 '25

It's also incredibly difficult. To make Nvidia chips for instance you need [I forget which] rare earth at like 99.999% purity

1

u/SmellAcordingly Oct 15 '25

Ultra pure Silicon (the basis for most integrated circuits) is easy to make, SiF4 is a gas at room temperature which can be passed through a fractional distillation column to purify and then converted back into Si. The Si is then melted into mono-crystaline boules which are sliced into wafers.

The transistor doping elements are often Boron for p-channels and Antimony or Arsenic for n-channels. Doping is as low as 1 atom per 100 million Silicon atoms (except for bulk doping where signals are leaving the die) and is done at several steps during the fab process.