System and method for cryogenic hybrid technology computing and memory

摘要

A system and method for high-speed, low-power cryogenic computing are presented, comprising ultrafast energy-efficient RSFQ superconducting computing circuits, and hybrid magnetic/superconducting memory arrays and interface circuits, operating together in the same cryogenic environment. An arithmetic logic unit and register file with an ultrafast asynchronous wave-pipelined datapath is also provided. The superconducting circuits may comprise inductive elements fabricated using both a high-inductance layer and a low-inductance layer. The memory cells may comprise superconducting tunnel junctions that incorporate magnetic layers. Alternatively, the memory cells may comprise superconducting spin transfer magnetic devices (such as orthogonal spin transfer and spin-Hall effect devices). Together, these technologies may enable the production of an advanced superconducting computer that operates at clock speeds up to 100 GHz.

主权项

1. A cryogenic computing system, comprising:
a high-speed superconducting digital processor, configured to operate at cryogenic temperatures at a clock rate of at least 20 GHz, comprising an asynchronous wave-pipelined datapath; an array of memory cells, comprising a plurality of serially-biased modular superconducting circuits having a plurality of isolated ground planes, configured to operate at cryogenic temperatures; and superconducting interface circuits configured to communicate between the array of memory cells and the processor.