| 摘要 |
PURPOSE:To alleviate current concentration in a contact section, and to increase the quantity of currents of superconductive currents flowing into the contact section by forming the contact section in size thicker than other sections in the film thickness of a normal conductive film and shaping a normal conductive film having resistivity lower than the normal conductive film to the contact section. CONSTITUTION:A contact section is formed in size thicker than other sections in the film the thickness of a Mo film 6. Consequently, the surface resistance of the Mo film 6 in the contact section can be lowered. A Nb film 8 and the Mo film 6 are brought into contact through an Au film 9 (3000Angstrom ). As a result, the Au film having lou resistivity is shaped to the contact section, thus reducing surface resistance. Accordingly, current concentration in the contact section can be alleiviated, thus increasing superconductive currents. |
