US PATENT SUBCLASS 257 / 34
.~.~.~ Weak link (e.g., narrowed portion of superconductive line)

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

9  DF  THIN ACTIVE PHYSICAL LAYER WHICH IS (1) AN ACTIVE POTENTIAL WELL LAYER THIN ENOUGH TO ESTABLISH DISCRETE QUANTUM ENERGY LEVELS OR (2) AN ACTIVE BARRIER LAYER THIN ENOUGH TO PERMIT QUANTUM MECHANICAL TUNNELING OR (3) AN ACTIVE LAYER THIN ENOUGH TO PERMIT CARRIER TRANSMISSION WITH SUBSTANTIALLY NO SCATTERING (E.G., SUPERLATTICE, QUANTUM WELL, OR BALLISTIC TRANSPORT DEVICE) {5}
30  DF  .~ Tunneling through region of reduced conductivity {3}
31  DF  .~.~ Josephson {4}
34.~.~.~ Weak link (e.g., narrowed portion of superconductive line)

DEFINITION

Classification: 257/34

Weak link (e.g., narrowed portion of superconductive line):

(under subclass 31) Subject matter wherein the active layer is a superconductive material of lower current capacity than the pair of superconductive electrodes.