Abstract: The first superconducting circuit employing Josephson junctions was published in 1964 and subsequently named SQUID (Superconducting Quantum Interference Device). The SQUID has matured over the ensuing 50 years and is the most widely recognized superconductor electronic sensor. Starting with IBM's Josephson computer project in the 1970's, SQUIDs became the basic building block in low temperature superconductor integrated circuits for analog-to-digital conversion, digital computing, cryogenic detector array readout, mixed signal and microwave integrated circuits, and quantum information systems. This presentation will focus on the role of SQUIDs in these integrated circuit applications.
Arnold Silver's perspectives on 50 years of SQUIDs (Superconducting Quantum Interference Devies)