this post was submitted on 29 Aug 2024
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[–] GamingChairModel@lemmy.world 5 points 3 weeks ago

there are only two places in the world that have the capability of doing the super small nm scale chips: Netherlands and Taiwan.

No, there's only one company in the world that can make these machines: ASML in the Netherlands. TSMC, Intel, Samsung, and everyone else buy their machines from ASML, who has a monopoly on the EUV machines necessary for modern semiconductor nodes.

These machines emit UV at the precise wavelengths necessary by very precisely generating droplets of tin, to be blasted by high powered lasers to create a highly charged plasma that emits UV, then precisely arranged reflectors to focus those beams onto silicon wafers through a mask. Even things like small changes in humidity and air pressure throw off the calibration, so the clean rooms are engineered to keep that constant no matter what the outdoor weather is, and any fab has ultra sensitive seismic detectors to anticipate seismic activity that might affect yields, and the systems have to account for the vibrations generated by human footsteps, fans and other equipment, etc.

The level of precision necessary for current generation fabs is so far beyond any one company or any one country's capabilities.