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@INPROCEEDINGS{CabreraGalicia:1021124,
author = {Cabrera Galicia, Alfonso Rafael and Ashok, Arun and Vliex,
Patrick and Schreckenberg, Lea and Chava, Phanish and Baje
Shankarakrishna Bhat, Swasthik and Kruth, Andre and
Zambanini, Andre and van Waasen, Stefan},
title = {{P}ower {I}ntegrity {C}hallenges in {L}arge {S}cale
{Q}uantum {C}omputers and {S}olutions},
school = {Universität Duisburg-Essen},
reportid = {FZJ-2024-00578},
year = {2023},
abstract = {The ICs belonging to a quantum computer need stable and
regulated supply voltages for proper operation, e.g. the
phase noise of RF oscillators is dependent on their power
supply quality. Moreover, the power supply needs of a large
scale QC will be challenging to satisfy by simply using
supply lines connecting the ICs inside the cryostat with the
power sources at room temperature. This is because voltage
ripples (e.g. pulse tube vibration induced noise), ground
loops induced noise and dynamic load currents may affect the
ICs supply lines and compromise the QC power integrity.
Furthermore, it is expected that the connection lines
available in large scale QCs be scarce due to the limited
cryostat space. Therefore, the usage of several lines to set
different supply domains may not be possible and be a
restricting factor for the QCs scalability.This presentation
will address the cryogenic power integrity topic by
providing:— A review of the power integrity challenges
faced by cryogenic ICs. — Solution approaches focused on
the cryogenic setup and the use of cryogenic voltage
regulators. — Cryogenic characterization and modelling of
FDSOI technology (22 nm) for ICs design. — Design and test
of cryogenic voltage references, based on cryogenic Vth
saturation and Vth difference. — Design and test of a
cryogenic voltage regulator. — Design of Digital LDOs for
cryogenic applications. — An application case: cryogenic
voltage regulator applied to power the reference circuit of
a cryogenic DAC used for the DC voltage setting of a Single
Electron Transistor Quantum Dot},
month = {Oct},
date = {2023-10-24},
organization = {IEEE Workshop on Quantum Computing:
Devices, Cryogenic Electronics and
Packaging, Milpitas (USA), 24 Oct 2023
- 25 Oct 2023},
subtyp = {Invited},
cin = {ZEA-2},
cid = {I:(DE-Juel1)ZEA-2-20090406},
pnm = {5223 - Quantum-Computer Control Systems and Cryoelectronics
(POF4-522)},
pid = {G:(DE-HGF)POF4-5223},
typ = {PUB:(DE-HGF)31},
doi = {10.34734/FZJ-2024-00578},
url = {https://juser.fz-juelich.de/record/1021124},
}