@th is that the underside under a microscope without decapping? it's so pretty. is it a common issue for the bond wires to have detached over time?

@fbz this soviet-era SRAM chip was selected for its easy-to-remove metal cover so that the die can be exposed to light. it's as old as I am and of unknown provenance, so I was worried about possible mechanical failures.

@th so is it EPROM that can be wiped with UV light?


@fbz this is just a normal SRAM chip in a ceramic package. the UV EPROM typically have quartz windows so that you can expose the die to the eraser light without dust contaminating the inside.

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