QCage.24 Core
Specifications:
- Standard chip size 10.0 × 10.0 mm2 (± 0.5 mm) with 8.0 × 8.0 mm2 active circuit area
- Standard die thickness 525 µm (± 50 µm)
- Front-side cavity 10.5 × 10.5 × 2.5 mm3
- Rear-side cavity 10.5 × 10.5 × 3.0 mm3
- Lowest box-mode resonance: 18.8 GHz (rear-side) & 20.0 GHz (front-side)
- Insertion loss to bonding pads: – 1.5 dB to 8 GHz & – 2.0 dB to 18 GHz
- Reflection loss from cable end: -25 dB to 8 GHz & -15 dB to 18 GHz
- Neighbor line crosstalk: -60 dB to 12 GHz & -40 dB to 18 GHz
- Leakage across cavity: -90 dB to 12 GHz & -60 dB to 18 GHz
- Highest Q factors for superconducting resonators > 5 million
- Longest coherence times for transmon qubits > 100 µ
