4 ms·
The older fab processes involved some pretty nasty chemicals. I seem to remember that hydrofluoric acid is used in multiple steps (to make contact cuts through
by 0xcde4c3db 11y ago
The older fab processes involved some pretty nasty chemicals. I seem to remember that hydrofluoric acid is used in multiple steps (to make contact cuts through oxide layers?) . To give you a broader idea, a former MOS Technology / Commodore fab ended up as a Superfund site [1].
[1] http://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=0301146 http://cumulis.epa.gov/supercpad/cursites/csitinfo.cfm?id=03...
- jacquesm 11y agoWe have a couple of similar sites here in NL, projected clean up time in the 100's of years. Very bad legacies from the time when the environment wasn't even on the radar of most governments and companies dumped their waste with abandon.