How would you do that if there's like 60 layers of metal conductors over the silicon substrate?

josh-wrale a day ago | parent | next [-]

Fair. I guess it would be necessary to CT scan them, like the Vesuvius Challenge

	▲	dgfl a day ago \| parent \| next [-]
		Not sure if regular tomography would work, but this has been done at high enough resolution with some fancier techniques (ptychography): https://www.nature.com/articles/s41586-024-07615-6 I would imagine this is of decent interest to people reverse engineering chip designs, or doing failure analysis, so it’s possible someone might actually be trying this at scale.
	▲	Arubis a day ago \| parent \| prev [-]
		You can destructively deprocess dies, removing a layer at a time and imaging at each layer. 20ish years ago you could still do this with a polishing wheel and a fine slurry; don’t know if that’s still viable.

throwaway198846 a day ago | parent | prev | next [-]

Computer, enhance!

We need two people on the keyboard at the same time to enahnce.

	▲	imafish 19 hours ago \| parent [-]
		Has been seen to work before: https://youtu.be/kl6rsi7BEtk?si=mXLk7yJwgTfn09as&t=12

elictronic a day ago | parent | prev [-]

It’s like taking a picture of someone’s house to determine their current medical diagnosis.

Garbage in, it’ Herpes.

	▲	giancarlostoro a day ago \| parent [-]
		Could have just said to determine where all the pipes are but you know, you could go all the way to herpes I suppose… :)