Not really what I expected. My cousin worked as a chem eng for an on shore chip mfgr in the 70s/ 80s doing polymer research into chip packaging material and th

Not really what I expected. My cousin worked as a chem eng for an on shore chip mfgr in the 70s/ 80s doing polymer research into chip packaging material and the general impression I got from informal discussion was the main long term enemy was water and gas (air) infiltration and ceramic chips were essentially inert in comparison to plastic DIP material. She was happy when here theoretical model indicated the chip pins on the outside of the chip would corrode off before most interiors would contaminate and fail; I have not idea if the team working on pin metallurgy had a similar goal of not corroding until her plastic seal failed, LOL. She also said something about EPROM UV windows being her nemesis or impossible or something similar. Possibly her main long term enemy to chip life as a polymer chemist was not the overall system enemy to long term chip life.