Design and operation of RSFQ cell library fabricated by using a 10-kA/cm2 Nb technology

被引：7

作者：

Maezawa, Masaaki ^{[1
]}

Ochiai, Masayuki ^{[1
]}

Kimura, Hiroe ^{[1
]}

Hirayama, Fuminori ^{[1
]}

Suzuki, Motohiro ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2007年 / 17卷 / 02期

关键词：

cell library; digital-to-analog converter; high critical current density; rapid single flux quantum; superconductor integrated circuit;

D O I：

10.1109/TASC.2007.898716

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 10-kA/cm(2) Nb/AIO(x)/Nb junction technology for rapid single flux quantum (RSFQ) integrated circuits has been developed. Modifying our standard 1.6-kA/cm(2) cell library, we have implemented elementary cells used to build RSFQ digital-to-analog converters for ac voltage standard applications. The 10-kA/cm(2) library cells have been fabricated by utilizing existing process tools. Correct operations of the circuits have been confirmed at low speed. The maximum operating frequencies evaluated by an average-voltage measurement technique were consistent with the scaling rules of RSFQ circuits.

引用

页码：500 / 504

页数：5

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