Superconducting ICs already available (Score 1)

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.