Invention Grant
- Patent Title: Vertical transmon qubit device with microstrip waveguides
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Application No.: US15934348Application Date: 2018-03-23
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Publication No.: US10672971B2Publication Date: 2020-06-02
- Inventor: Markus Brink , Sami Rosenblatt , Rasit Onur Topaloglu
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
- Current Assignee Address: US NY Armonk
- Agency: Amin, Turocy & Watson, LLP
- Main IPC: H01L39/02
- IPC: H01L39/02 ; H01L39/22 ; H01L39/24 ; H01P3/08 ; H01P11/00 ; H01L23/66 ; G06N10/00 ; B82Y10/00 ; H01L27/18 ; B82Y40/00

Abstract:
Techniques for a vertical Josephson junction superconducting device using microstrip waveguides are provided. In one embodiment, a chip surface base device structure is provided that comprises a superconducting material located on a first side of a substrate, and a second superconducting material located on a second side of the substrate and stacked on a second substrate, wherein the first side of the substrate and the second side of the substrate are opposite sides. In one implementation, the substrate or the second substrate, or the substrate and the second substrate are crystalline silicon. In one implementation, the chip surface base device structure also comprises a transmon qubit comprising a capacitor and a Josephson junction formed in a via of the substrate and comprising a tunnel barrier. In one implementation, the chip surface base device structure also comprises a microstrip line electrically coupled to the transmon qubit.
Public/Granted literature
- US20190296210A1 VERTICAL TRANSMON QUBIT DEVICE WITH MICROSTRIP WAVEGUIDES Public/Granted day:2019-09-26
Information query
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