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Konami sprite chips: I'm a dummy
🕑 Added 2021-10-07 21:51:09 +0000 UTCA few hours after posting the news about the unusable dies, I remembered that I had a dead Ajax board from which I had already taken the 007232 sound chips.
I didn't immediately update the post because I wasn't sure what had caused the decap failure, so the new attempt could have given the same (bad) results.
The rain was supposed to stop for an hour this evening so I prepared the chips, and quickly got outside to boil them as soon as the weather looked ok. This time I went for precise amounts of acid, and the same duration and temperature I had used recently for other chips.
Bad news turned into good news: no blue tint at all, no FUZ ("F***ed Up Zone" as I like to call accidental nicks around the edges) and perfectly clear metal traces under the microscope !
Work can be resumed, here we go for the 051960 :)
Thanks to those who proposed their help to find dead PCBs or bare chips. I should have checked my pile of e-waste before breaking out the news. My bad !
Comments
Syro
Very exciting! Looking forward to this. Thank you for your hard work!
Mike V.
Excellent news! Thanks for sharing.
