Last time I've heard about it (in 1995, at the 21st Low Temperature Physics conference), experimental samples of the superconducting integrated circuits were already built and running at 300 Gigahertz - with the 3.5 mkm technology. I only wonder what's the state of the art now, four years later.
However, the superconducting circuits are not based on conductivity switching, like the semiconductor ones - instead, they switch and exchange the magnetic flux quanta.
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Last time I've heard about it (in 1995, at the 21st Low Temperature Physics conference), experimental samples of the superconducting integrated circuits were already built and running at 300 Gigahertz - with the 3.5 mkm technology. I only wonder what's the state of the art now, four years later.
However, the superconducting circuits are not based on conductivity switching, like the semiconductor ones - instead, they switch and exchange the magnetic flux quanta.