Andrew Zonenberg on Nostr: After ultrasonic cleaning. we're definitely more than fully etched... leadframe ...

After ultrasonic cleaning. we're definitely more than fully etched... leadframe visible in the bottom right too.

If I had stopped a few acid drops earlier more of the bond wires might have survived.

A few more bond wires seem to have broken during sonication but that's fine, at this point so many were broken that if a failed bond wire was the problem then that information is lost to the abyss anyway.