Invention Grant
- Patent Title: Superconducting airbridge crossover using superconducting sacrificial material
-
Application No.: US16050507Application Date: 2018-07-31
-
Publication No.: US11380974B2Publication Date: 2022-07-05
- Inventor: Josephine B. Chang , John M. Cotte
- 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: Cantor Colburn LLP
- Agent Randall Bluestone
- Main IPC: H01P11/00
- IPC: H01P11/00 ; H01P7/06 ; H01P7/08 ; H01P3/08 ; H01P5/02 ; H05K1/02 ; H05K1/09 ; H05K3/46 ; H05K3/00

Abstract:
A technique relates to a superconducting airbridge on a structure. A first ground plane, resonator, and second ground plane are formed on a substrate. A first lift-off pattern is formed of a first lift-off resist and a first photoresist. The first photoresist is deposited on the first lift-off resist. A superconducting sacrificial layer is deposited while using the first lift-off pattern. The first lift-off pattern is removed. A cross-over lift-off pattern is formed of a second lift-off resist and a second photoresist. The second photoresist is deposited on the second lift-off resist. A cross-over superconducting material is deposited to be formed as the superconducting airbridge while using the cross-over lift-off pattern. The cross-over lift-off pattern is removed. The superconducting airbridge is formed to connect the first and second ground planes by removing the superconducting sacrificial layer underneath the cross-over superconducting material. The superconducting airbridge crosses over the resonator.
Public/Granted literature
- US20190067787A1 SUPERCONDUCTING AIRBRIDGE CROSSOVER USING SUPERCONDUCTING SACRIFICIAL MATERIAL Public/Granted day:2019-02-28
Information query