this post was submitted on 26 Nov 2023
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That has nothing to do with preventing reverse engineering in this case, as far as I know. It's a very cheap alternative to an integrated heat spreader.
https://blog.paryleneconformalcoating.com/potting-protects-against-reverse-engineering/
Til It seems to do both
It can be used for both reasons, but I don't think they are that concerned with protecting against reverse engineering on chips that are probably decades old and easily purchasable