Cryogenic Deep Space Conical Inductors Extended SRF Broadband Inductor

Product Specification

Custom Conical Inductor Cryogenic Deep Space Vacuum Reliability Wafer Level Digital Twin Data Packaging Extended SRF

HACC-CUSTOM-CR: Cryogenic Deep-Space Qualified Conical Inductor with Wafer-Level Digital Twin Data & Extended SRF

Cryogenic & Deep-Space Vacuum Reliability

Deep-space scientific instruments — radio astronomy receivers, quantum computing readout chains, and planetary exploration payloads — require RF components that maintain calibrated performance from room temperature to cryogenic temperatures (4 K) in high vacuum (10⁻⁹ Torr). The HACC-CUSTOM-CR is designed and qualified for this environment. Inductance shift is maintained below 3% from 300 K to 4 K — the air-core architecture ensures no ferromagnetic Curie-point effects and no saturation nonlinearity. The Au-plated copper wire does not undergo a superconducting transition, maintaining predictable resistance. Material selection follows ASTM E595 outgassing limits: total mass loss (TML) below 1.0% and collected volatile condensable material (CVCM) below 0.1%. All organic materials — including the dot-fixing epoxy — are space-grade, low-outgassing formulations with no silicone content. Mechanical integrity is validated through 100 thermal cycles from 4 K to 300 K with wire bond pull strength maintained above 3.0 g and no CTE-mismatch cracking at the epoxy-substrate interface.

Wafer-Level Digital Twin Data Packaging for Instruments

Scientific instrument calibration requires per-component RF data — not a datasheet typical value. The HACC-CUSTOM-CR ships with a complete digital twin data package for every device: Touchstone .s2p S-parameter files measured at 300 K, 77 K, and 4 K from 10 MHz to 67 GHz; a broadband SPICE model capturing frequency-dependent inductance, AC resistance, and parasitic capacitance at each temperature; a 3D STEP geometry model for EM simulation integration; and XML metadata with traceability to the wafer lot, die position, and calibration standard. Wafer-level data includes a wafer map with per-die SRF, DCR, and inductance from cryogenic-probed sample dies with SPC CpK metrics per wafer lot. The digital twin package is compatible with Keysight ADS, Ansys HFSS, and CST Microwave Studio — enabling instrument designers to simulate the exact inductor that will be assembled, not a generic model.

Extended-SRF Millimeter-Wave Limit

Leveraging the same ultra-fine apex architecture as the MW variant, the HACC-CUSTOM-CR achieves SRF above 50 GHz at 300 K — and extends further to above 55 GHz at 77 K due to reduced wire series resistance at low temperature. Parasitic apex capacitance is maintained below 0.005 pF, verified stable from 4 K to 300 K with no dielectric constant shift in the structural epoxy.

Key Specifications

Applications

• Radio Astronomy Cryogenic Receiver Front-Ends — 4 K qualified, <3% inductance shift, digital twin .s2p at operating temperature for precision calibration
• Quantum Computing Readout Chains — 10 mK compatible materials, Au-plated Cu no superconductivity, SPICE model for cryogenic matching network design
• Deep-Space Planetary Instrumentation — ASTM E595 low outgassing, 10⁻⁹ Torr vacuum, 100 cryo-cycles qualified for multi-year mission life
• Cryogenic Probe Station Calibration — Per-device digital twin .s2p at 300 K/77 K/4 K, XML metadata with calibration traceability

Contact us with your temperature range, vacuum requirements, and data packaging needs. Cryogenic-qualified conical inductors with digital twin data ship in 7–10 business days.