Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session B46: Scaling Up Silicon Qubits - Characterization and Fab
11:30 AM–2:18 PM,
Monday, March 4, 2024
Room: 200AB
Sponsoring
Unit:
DQI
Chair: Adam Mills, Princeton University
Abstract: B46.00012 : A Millikelvin CMOS Demultiplexing Chip for Scalable Qubit Addressing
2:06 PM–2:18 PM
Presenter:
Sushil Subramanian
(Intel Corporation)
Authors:
Sushil Subramanian
(Intel Corporation)
Todor M Mladenov
(Intel Corporation)
Simon Schaal
(Intel Corporation)
Bishnu Patra
(Intel Corporation)
Lester Lampert
(Intel Corporation)
Nancy K Robinson
(Intel Corporation)
Jeanette Roberts
(Intel Corporation)
Stefano Pellerano
(Intel Corporation)
In this work, we present a mK cryo-CMOS demultiplexer chip that uses a single DC bias generator and a single pulse generator as inputs, to demultiplex voltages for up to 64 qubit device terminals and provide both DC bias, and simultaneous and continuous high-speed gate pulses. To further alleviate cabling bottlenecks, a 4 K cryo-CMOS controller provides the control signals and gate pulsing voltage to the mK demultiplexer. Integrated with a foundry manufactured qubit chip on the same PCB, mK cryogenic measurements show multi-terminal characterization of a qubit device.
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