Automatic Wire-Routing of SFQ Digital Circuits Considering Wire-Length Matching

作者：Kito Nobutaka^*; Takagi Kazuyoshi^*; Takagi Naofumi^*

来源：IEEE Transactions on Applied Superconductivity, 2016, 26(3): 1300305.

DOI：10.1109/TASC.2016.2521798

• Design automation
• layout design
• routing
• SFQ circuits
• superconducting integrated circuits

An automatic wire-routing method of passive transmission lines (PTLs) for single-flux-quantum digital circuits is proposed. The method considers the wire routing of a rectangular region between adjacent columns of active devices. To perform wire routing considering the difference between the timing variabilities of active devices and those of PTLs, the proposed wire-routing method provides paths of PTLs with a specified additional length for delay insertion. The problem is formulated as integer linear programming. Experimental results show that compact layouts are obtained.

• 出版日期2016-4