Do you think the company you worked for wasn't handling them properly? Do you think the industry in general doesn't handle them correctly? If so, what changes do you think need to be made?
The company I worked for did a good enough job so that if you poisoned yourself they could plausibly say you were in violation of SOP. To be honest, I don't know what you could do to fix a lot of the dangers in semiconductor manufacturing. Many of them are just inherent to the process. Avoiding super carcinogenic resists is the low hanging fruit. Maybe there are a few other places where you could use safer, more expensive chemicals. But you have to have arsenic. You have to have HF. There's no known safe alternative.
I think the biggest thing you could do is remind the technicians that their safety is paramount, even when we're line down waiting for a critical tool to come back up. The pressure to restore a multi-billion dollar fab to production is intense, and it can cause people to cut corners on safety.
