Work

A Cryogenic Active Router for Qubit Array Biasing from DC to 320 MHz at 100 nm Gate Pitch

Year: 2023

Type: conference-paper

Abstract: To address the semiconducting qubit biasing bottleneck, we develop a cryogenic analog demultiplexer operating 64 independent channels at 4 K and integrating a realistic 20 $\mu$m to 100nm pitch reduction compatible with dense qubit arrays. We achieve100MHz signals to target static qubit polarization as well as fast (down to 3ns) voltage pulses for qubit manipulation. From the extracted power consumption (3.54$\mu$W/MHz/channel), we can extrapolate the thermal budget required to control future large-scale qubit arrays.

Source: European Solid-State Circuits Conference (ESSCIRC)

DOI: 10.1109/esscirc59616.2023.10268775