> jim bell: > That sounds like nonsense to me.
"The sausage-shaped ingots were then shaved into thin wafers, and polished using a number of chemicals. After that came the process of printing transistors into the chips–which required degreasers and solvents, including the sweet-smelling trichloroethylene (TCE)" https://gizmodo.com/the-secret-history-of-silicon-valley-and-the-toxic-remn-1743622225 [](http://baykeeper.org/articles/baykeepers-legal-action-clean-industrial-runoff-pollution)http://www.ozy.com/acumen/think-chinas-pollution-is-bad-try-northern-california/71553 http://baykeeper.org/articles/baykeepers-legal-action-clean-industrial-runoff-pollution
