Delete comment from: Ken Shirriff's blog

Jecel said...

"The blue lines show the metal wiring on top of the chip, while the green shows the silicon underneath"

It might be a little clearer to say that "the green shows the doped silicon underneath" since there is silicon everywhere in the chip. Even that is a simplification, since the bulk silicon is also doped but more lightly and in the opposite polarity of the green areas.

Sep 20, 2020, 12:31:44 AM

Posted to HP Nanoprocessor part II: Reverse-engineering the circuits from the masks