Die photos and analysis of the revolutionary 8008 microprocessor (2016)
1–10 of 17 posts
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#2Looks kind of like Factorio!
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#3Previous discussion:
https://news.ycombinator.com/item?id=13250949
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#4The picture under the heading "The structure of the chip" has two arrows pointing to polysilicon regions. Does anyone know why the polysilicon region that the upper arrows points to is os much larger than the polysilicon regions that the lower arrow points to? They seem like a couple of order of magnitude larger.
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#5I'm curious, what could be made out of a processor in the order of 4000 transistors as here, but with entirely modern chip design and fabrication tech? What could you put out on TSMC's 7nm, presumably an extremely small wafer.
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#6I'm curious, what could be made out of a processor in the order of 4000 transistors as here, but with entirely modern chip design and fabrication tech? What could you put out on TSMC's 7nm, presumably an extremely small wafer.
maybe the cpu in a sd card?
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#7[deleted]
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#8Looks kind of like Factorio!
Nah not enough spaghetti
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#9Probably the most accessible introduction to dies that I've seen. Really informative.
Re: Die photos and analysis of the revolutionary 8008 microprocessor (2016)
#10The picture under the heading "The structure of the chip" has two arrows pointing to polysilicon regions. Does anyone know why the polysilicon region that the upper arrows points to is os much larger than the polysilicon regions that the lower arrow points to? They seem like a couple of order of magnitude larger.
Looking at one of the labeled diagrams [0], it looks like all the large areas of polysilicon are either serpentine structures that are probably resistors, or they're adjacent to one of the power rails. The ones you're referring to seem to be at the top of the instruction register section and right below the Vdd (-9V) line. So we may simply be looking at larger transistors to handle more current and voltage.
[0] https://lh3.googleusercontent.com/-nHUr8PLBS-8/WF4ffgi2aiI/A...
