Patent ID: 9634224
Date: 2017-04-25
CPC Classifications: H01L

Claim:
1. A method of fabricating a Josephson junction, the method comprising: depositing an inner superconductive layer, the inner superconductive layer comprising a material that is superconductive in a range of critical temperatures; forming an oxide layer that overlies at least part of the inner superconductive layer; depositing an outer superconductive layer to overlie at least part of the oxide layer, the outer superconductive layer comprising a material that is superconductive in a range of critical temperatures; forming a mask layer that overlies at least part of the outer superconductive layer; removing a first portion of the mask layer; removing a first portion of the outer superconductive layer to form at least one structure from the outer superconductive layer, the at least one structure comprising at least one lateral exposed surface; applying an oxygen plasma or a nitrogen plasma to the at least one lateral exposed surface of the at least one structure to convert at least part of the at least one lateral surface into a second oxide layer or a nitride layer; and after applying the oxygen plasma or the nitrogen plasma to the at least one lateral exposed surface of the at least one structure, removing the mask layer to expose at least a portion of an upper surface of the at least one structure.