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@azonenberg@ioc.exchange
2025-10-18 04:41:06

PIC12F683 just has a few traces of dielectric and a few vias left before it's fully stripped to substrate.
Surprisingly, poly still seems fully intact. I'm not sure if any of my cleaning steps at the end will remove it, but it's quite firmly stuck down and I haven't seen *any* of it floating free yet. Some of the tungsten contacts have come off, which doesn't surprise me at all.
Now that all the oxide over the poly is gone the poly images are even sharper, alt…

SRAM address decode circuitry showing poly and oxide over substrate, with colorful interference fringes in incompletely etched areas
Random logic with slightly blurred contacts and very clearly focused poly/active regions