Patent ID: 6263219
Filing Date: 2001-07-17
Classification: H01L,Y10S

Abstract:
A SQUID formed of an oxide superconducting thin film, comprising:a CeO2film, a first RBa2Cu3O7-x film and a SrTiO3film successively formed on a sapphire substrate having a flat, planar surface; anda second RBa2Cu3O7-x film, where R indicates a rare earth element selected from the group consisting of Yb, Er, Ho, Y, Dy, Gd, Eu, Sm and Nd,wherein the second RBa2Cu3O7-x film is an oxide superconducting thin film and is formed to be a SQUID, andwherein the second RBa2Cu3O7-x film and the SrTiO3film each have a step formed on a top surface thereof.