In all honesty I might've just gotten confused and am overexaggerating Silicon somewhat.
It's really hard to find articles so I've genuinely no idea where I got my history of it to begin with.
Regardless, Silicon was invented in the 1820s and it wasn't figured out that they make computers good until like the 1950s/60s/70s.
The issue I'm thinking of might not have been the mass production of silicon itself, but rather the mass production of the integrated circuit, which silicon was of course quintessential in enabling.https://en.wikipedia.org/wiki/Invention_of_the_integrated_circuithttp://www.mobileranger.com/blog/a-very-small-big-deal-the-history-of-the-integrated-circuit/
Now ignoring the fact that it was discovered in the 1820s,
if we just take the timeline from when they figured out how it could be used in an integrated circuit to when it actually became commercially available en masse, it amounts to about 15 years.
Though even then it still took far more time for it to be cheaply available.