A SQUID Bootstrap Circuit with a Large Parameter Tolerance

作     者：ZHANG Guo-Feng ZHANG Yi Hans-Joachim Krause KONG Xiang-Yan Andreas Offenhäusser XIE Xiao-Ming 张国峰;张懿;Hans-Joachim Krause;孔祥燕;Andreas Offenhäusser;谢晓明

作者机构：State Key Laboratory of Functional Materials for InformaticsShanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences(CAS)Shanghai 200050 Peter Grünberg Institute(PGI-8)Forschungszentrum Jülich(FZJ)D-52425JülichGermany Joint Research Laboratory on Superconductivity and BioelectronicsCollaboration between CAS-Shanghai&FZJShanghai 200050 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2013年第30卷第1期

页      面：219-222页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Supported by the Knowledge Innovation Program of the Chinese Academy of Sciences under Grant No KGCX2-YW-906 and KGCX2-EW-105 the One Hundred Person Project of the Chinese Academy of Sciences 

主　　题：SQUID Bootstrap spread 

摘      要：The voltage biased(SQUID)bootstrap circuit(SBC)was recently introduced as an effective means to reduce the preamplifier noise *** analyze the tolerances of the SBC noise suppression performance to spreads in SQUID and SBC circuit *** is found that the tolerance to spread mainly caused by the integrated circuit fabrication process could be extended by a one-time adjustable current feedback.A helium-cooled niobium SQUID with a loop inductance of 350 pH is employed to experimentally verify the *** this work,design criteria for fully integrated SBC devices with a high yield can be derived.