CA3080s

[Grant Richter]

>
>Once the moisture gets through the package to the chip corrosion starts 
>to happen and finally the chip says "pop" and smells bad. 
>The other problem with the old plastic CA3080 must have been that
>they don't have enough power consumption to keep the chips warm and dry as
>old TTL chips would have done.
>

Let's not forget that the purity of the chemical processes used to fab the chips 
has improved dramatically in twenty years.
I've seen a lot of 741 failures inside circuits where the chip is well protected
and not stressed. The only thing I can think of is chemical impurities in the original
fab process.