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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10903411 B1

PDFFull Text
Date of Patent:
Jan. 26, 2021

Filed:

Jan. 07, 2019

Semiconductor josephson junction and a transmon qubit related thereto

Applicant:

University of Copenhagen, København N, DK;

Inventors:

Charles M. Marcus, København Ø, DK;

Peter Krogstrup, København Ø, DK;

Thomas Sand Jespersen, København Ø, DK;

Jesper Nygård, København Ø, DK;

Karl Petersson, København Ø, DK;

Thorvald Larsen, København Ø, DK;

Ferdinand Kuemmeth, København Ø, DK;

Assignee:

University of Copenhagen;

Attorney:

Sunstein LLP

Primary Examiner:

Michelle Mandala

Assistant Examiner:

Jordan M Klein

Int. Cl.
CPC ...
H01L 39/02 (2006.01); B82Y 10/00 (2011.01); B82Y 40/00 (2011.01); H01L 29/43 (2006.01); H01L 29/66 (2006.01); H01L 29/06 (2006.01); H01L 29/41 (2006.01); H01L 39/24 (2006.01); H01L 39/22 (2006.01); H01L 39/12 (2006.01); C23C 14/28 (2006.01); C30B 11/12 (2006.01); C30B 23/02 (2006.01); C30B 23/06 (2006.01); C30B 29/62 (2006.01);
U.S. Cl.
CPC ...
H01L 39/02 (2013.01); B82Y 10/00 (2013.01); B82Y 40/00 (2013.01); C23C 14/28 (2013.01); C30B 11/12 (2013.01); C30B 23/025 (2013.01); C30B 23/066 (2013.01); C30B 29/62 (2013.01); H01L 29/0673 (2013.01); H01L 29/413 (2013.01); H01L 29/437 (2013.01); H01L 29/66469 (2013.01); H01L 39/025 (2013.01); H01L 39/125 (2013.01); H01L 39/221 (2013.01); H01L 39/223 (2013.01); H01L 39/228 (2013.01); H01L 39/2432 (2013.01); H01L 39/2493 (2013.01); Y10S 977/762 (2013.01); Y10S 977/81 (2013.01); Y10S 977/891 (2013.01); Y10S 977/938 (2013.01); Y10S 977/943 (2013.01);
Abstract

The present disclosure relates to semiconductor based Josephson junctions and their applications within the field of quantum computing, in particular a tuneable Josephson junction device has been used to construct a gateable transmon qubit. One embodiment relates to a Josephson junction comprising an elongated hybrid nanostructure comprising superconductor and semiconductor materials and a weak link, wherein the weak link is formed by a semiconductor segment of the elongated hybrid nanostructure wherein the superconductor material has been removed to provide a semiconductor weak link.

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