- 专利标题: Superconducting airbridge crossover using superconducting sacrificial material
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申请号: US16050507申请日: 2018-07-31
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公开(公告)号: US11380974B2公开(公告)日: 2022-07-05
- 发明人: Josephine B. Chang , John M. Cotte
- 申请人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 代理机构: Cantor Colburn LLP
- 代理商 Randall Bluestone
- 主分类号: H01P11/00
- IPC分类号: H01P11/00 ; H01P7/06 ; H01P7/08 ; H01P3/08 ; H01P5/02 ; H05K1/02 ; H05K1/09 ; H05K3/46 ; H05K3/00
摘要:
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.
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