Weisshorn

Building Blocks for Cryogenic Low-Noise Electronics 

Application
The integration of electronics at cryogenic temperatures in the range of 70 K down to 800 mK is expected to significantly improve system noise performance in applications such as qubit control and read-out for quantum computers, as well as in highly sensitive optical sensors for fast single-photon detection based on silicon avalanche photodiode (SPD) technology. 

Short Description
The 3.0 x 1.0 mm Weisshorn chip is processed using a 22 nm FD-SOI process. It contains novel components, including a low-noise current source, to investigate and validate cryogenic control for tuning and manipulating superconducting and spin-based qubits, as well as single-photon detectors.

Design Team
Batuhan Keskin, Jad Benserhir, Yating Zou, external page AQUA Lab @ EPFL.

Characterization and Publication
Ongoing