Hurricane Helene has exposed a little-known vulnerability in the semiconductor supply chain, after flooding at mines in North Carolina halted production of ultra-pure quartz that is vital to chip manufacturing.
The storm, the most deadly to hit the US mainland since Hurricane Katrina in 2005, flooded the mountain town of Spruce Pine last weekend, which experts say produces as much as 90 per cent of the world’s ultra-pure quartz. This scarce mineral is used to make the crucibles in which the high-grade silicon used in semiconductors is produced.
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