To obtain a superconducting detector in which an external magnetic field used for restraining a Josephson current of a sensor superconducting tunnel junction(STJ) device is positioned accurately, so as not to have magnetically adverse effect to other STJ device integrated circuits such as a superconducting quantum interference device(SQUID) and the like. センサ用超伝導トンネル接合(STJ)素子のジョセフソン電流を抑制するための外部磁場を正確に位置付けし、超伝導量子干渉素子(SQUID)等他のSTJ素子集積回路に磁気的悪影響を与えない。 - 特許庁