A single flux quantum 100 Gbps-scale packet switchingdevice technology

摘要

We present recent progresses in SFQ digital applications andtechnology. First, we discuss a possible architecture for a Tbps-scale SFQpacket switch module. This switch module consists of several SFQswitching chips packaged by a superconducting multi-chip-module. Forthis module, we fabricate a prototype 2x2 switching chip and demonstrate itup to 100 Gbps throughput. Further we demonstrated a circuit that isinterconnected four 2x2 switches by passive transmission lineinterconnection. Second, we present a top-down design technology forlarge-scale digital applications. The most striking feature is the world firstautomatic place-and-route tool improvement, which is a key elementtowards SFQ-LSI. Using the place-and-route tool, we can design alarger-scale-random-logic circuit ever before.