First 2D, non-silicon computer developed
(psu.edu)117 points by giuliomagnifico 4 days ago
117 points by giuliomagnifico 4 days ago
From the abstract[1]:
This enabled circuit operation below 3 V with an operating frequency of up to 25 kHz, which was constrained by parasitic capacitances
I would guess process improvements would help a lot towards lowering those parasitics. So I wouldn't take this initial attempt as a guide for ultimate speed.
Since this is 2D materials, a capacitor is a dielectric sandwiched by two conductors and capacitance scales linearly with area, I would assume just scaling things down would help immensely with parasitic capacitance. Changing materials or process could also change the dielectric constant which also affects the capacitance linearly.
Paper is sadly not open access, so I can't check if they mention this or have done some theoretical peak calculations or something. Would indeed be interesting to know.
https://arstechnica.com/science/2019/08/16-bit-risc-v-proces...
Modern microprocessor built from complementary carbon nanotube transistors https://www.nature.com/articles/s41586-019-1493-8
I wonder how this compares in speed and capabilities to photonic computers
It shows just the symbols of the elements (W, Se, Mo) and the number 2, not the compounds. The "W", "S", "M", and "2" characters are in the correct place on a QWERTY keyboard, and they appended the necessary additional characters to complete the symbols as needed, even if the "e" in Se and "o" in Mo aren't in the correct spot on the layout.
If the frame is made of atoms what are the keys and display made out of? Quarks?
AI but it's kinda cool. Computers books in the old days used to have crazy representations of computers and all kinds of stuff. I don't mind this one.
Wonder if these materials are the kind of thing the "make your own integrated circuits" people would be able to use?
ie: https://sam.zeloof.xyz/category/semiconductor/