First semi-successful attempt at deprocessing by lapping.
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First semi-successful attempt at deprocessing by lapping. The outcome is extremely uneven, with metal2 remains showing over metal1, and a larger corner area being ground down to substrate.
Despite that, it may be possible to recover around half the bits visible in the ROM block. If done more conservatively and with multiple intermediate steps, full recovery can be performed.
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First semi-successful attempt at deprocessing by lapping. The outcome is extremely uneven, with metal2 remains showing over metal1, and a larger corner area being ground down to substrate.
Despite that, it may be possible to recover around half the bits visible in the ROM block. If done more conservatively and with multiple intermediate steps, full recovery can be performed.
Closeup on the bits area.
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T tsrono@mastodon.social shared this topic
