The ColdFlux RSFQ Cell Library for MIT-LL SFQ5ee Fabrication Process
The ColdFlux RSFQ Cell Library for MIT-LL SFQ5ee Fabrication Process
复制标题
用于 MIT-LL SFQ5ee 制造工艺的 ColdFlux RSFQ 单元库
DOI：
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发表时间：
2022
影响因子：
1.8
通讯作者：
C. Fourie
中科院分区：
文献类型：
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作者：
L. Schindler;J. Delport;C. Fourie
ColdFlux 项目属于 IARPA SuperTools 计划，旨在开发用于超导电路的开源 EDA 工具套件，重点关注快速单通量量子 (RSFQ) 和绝热量子通量参数 (AQFP) 逻辑。 ColdFlux 工具套件的功能通过开发即用型单元库进行了验证。记录了建立开源 ColdFlux RSFQ 单元库的过程，以及每个步骤所需的项目中开发的 EDA 工具集。这包括使用基于相位的方程进行初始电池设计、电路仿真、操作裕度分析和电池参数优化。还介绍了 RSFQ 单元库的基于行的布局架构。几个设计的 RSFQ 单元被放置在测试电路中，并通过 MIT-LL SFQ5ee 制造工艺制造。我们展示了这些测试电路的测量结果，并讨论了设计效率、潜在的改进和未来的工作。
The ColdFlux project, within the IARPA SuperTools program, aims to develop an open-source EDA tool suite for superconductor circuits, with focus on Rapid single flux quantum (RSFQ) and Adiabatic quantum-flux-parametron (AQFP) logic. The functionality of the ColdFlux tool suite is validated through the development of ready-to-use cell libraries. The process of establishing the open-source ColdFlux RSFQ cell library is documented, along with the set of EDA tools developed within the project required for each step. This includes the initial cell design using phase-based equations, circuit simulation, operating margin analysis, and cell parameter optimization. The row-based layout architecture for the RSFQ cell library is also presented. Several of the designed RSFQ cells are placed within test circuits and fabricated through the MIT-LL SFQ5ee fabrication process. We present the measured results for these test circuits and discuss design efficiency, potential improvements, and future work.