HP NanoProcessor Mask Set
source link: http://www.cpushack.com/2020/08/20/hp-nanoprocessor-mask-set/
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HP NanoProcessor Mask Set
Since we have a complete, and very early mask set of the HP NanoProcessor (donated by Mr Bower, thank you) it seemed fitting to scan them in (tricky at 600 dpi and 6 scans each (they are around 40x60cm) then I sent them over (500MB) my friend Antoine Bercovici in France to stitch and clean, as well as remove the background. THat allowed this cool animation of the mask being built.
These are made from a set of 100X Mylar masks
Here you can see how the 6 different mask layers are built up. The last mask layer (black) is the bonding pads
Each individual layer is also shown, some are very simple, while others contain a lot more.
In the lower left corner of the masks you can see their layer number 1B 2A 3A…etc
You can see the original HP part number on the mask 9-4332A as well as ‘GLB’ GLB is a composition of the initials of the two designers of the chip: George Latham and Larry Bower.
Here is a larger version as well: HP NanoProcessor Mask Set
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