(19)
(11) EP 3 956 825 A1

(12)

(43) Date of publication:
23.02.2022 Bulletin 2022/08

(21) Application number: 20719425.9

(22) Date of filing: 15.04.2020
(51) International Patent Classification (IPC): 
G06N 10/00(2022.01)
H01L 39/22(2006.01)
B82Y 10/00(2011.01)
(52) Cooperative Patent Classification (CPC):
H01L 27/18; H01L 39/24; G06N 10/00; B82Y 10/00; H01L 39/025; H01L 29/66977
(86) International application number:
PCT/EP2020/060612
(87) International publication number:
WO 2020/212437 (22.10.2020 Gazette 2020/43)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 19.04.2019 US 201916389001
19.04.2019 US 201916389033

(71) Applicant: International Business Machines Corporation
Armonk, New York 10504 (US)

(72) Inventors:
  • SHAO, Dongbing
    Yorktown Heights, New York, 10598 (US)
  • BRINK, Markus
    Yorktown Heights, New York, 10598 (US)
  • SOLGUN, Firat
    Yorktown Heights, New York, 10598 (US)
  • HERTZBERG, Jared, Barney
    Yorktown Heights, New York, 10598 (US)

(74) Representative: RPK Patentanwälte Reinhardt, Pohlmann und Kaufmann Partnerschaft mbB 
Gaisburgstrasse 21
70182 Stuttgart
70182 Stuttgart (DE)

   


(54) QUBIT FREQUENCY TUNING STRUCTURES AND FABRICATION METHODS FOR FLIP CHIP QUANTUM COMPUTING DEVICES