Patent ID: 6518673
Filing Date: 2003-02-11
Classification: H01L

Abstract:
A superconductor integrated circuit capacitor for squid-to-squid coupling of single flux quantum pulses while maintaining DC isolation, comprising:a substrate of electrical insulating material; a first plate electrode, said first plate electrode comprising a superconductor metal; a second plate electrode, said second plate electrode comprising a superconductor metal; a layer of dielectric material; an electrical lead of superconducting material extending from said second plate electrode; said first plate electrode overlying said substrate; said layer of dielectric material overlying and being in contact with said first plate electrode and said second plate electrode overlying and being in contact with said layer of dielectric material to define a capacitance; a superconductor metal layer, said superconductor metal layer overlying and being in spaced relation to and covering said first and second plate electrodes and said electrical lead; and wherein the dielectric material of said layer of dielectric material comprises an oxide of said superconductor metal of said first plate electrode.