Extended Data Fig. 3: Sample holder design.
From: A high-efficiency elementary network of interchangeable superconducting qubit devices
a, CAD drawings for a single transmon module, based on27. (Top) Full holder assembly, with cable clamp and cable bus included. Top half of the model made transparent to show the sample chip and exposed cable bus. (Middle) Side view of the holder. Copper clamps on each end hold the sample in place. Inside each clamp, a BeCu spring holds the chip in place with an estimated force of 250 grams. Aluminum cable clamp fastens around the cable and then mounts onto the side of the holder. (Bottom) Front view of the holder. Copper clamps made transparent to show the spacing between the cable inner conductor and sample. b, Exploded view of the actual device. c, Electric field simulation of the Al coaxial cable mode within one of the square modules shown in Extended Data Fig. 2a (left), and the sub-cut-off waveguide, with the sample and circuit elements modeled inside (right). Holders, cable clamp, and chip clamps have been outlined.
