Another weekend die shot from @Zeptobars, the MN3207 – 1024 stage analog delay line (BBD)
MN3207 is an BBD – bucket-brigade device (predecessor of CCD), with 1024 stages used as analog delay line. Die size 2770×3210 µm.
The art in making these chips is incredible, compounded by the fact that they are so small!
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