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
| Parameter | Value |
|---|
| Cryogenic Range | 4 K–300 K qualified, inductance shift <3% |
| Vacuum Compatibility | 10⁻⁹ Torr, TML <1.0%, CVCM <0.1% per ASTM E595 |
| Thermal Cycling | 100 cycles 4 K–300 K, no mechanical failure |
| Digital Twin Package | .s2p (3 temps), SPICE model, STEP 3D, XML metadata |
| SRF | >50 GHz at 300 K, >55 GHz at 77 K |
| Inductance | 10 nH–200 nH, ±10% at 300 K, cryo-characterized |
| DCR | <2.0 Ohm at 300 K, <1.5 Ohm at 77 K, <1.0 Ohm at 4 K |
| Frequency Range | 10 MHz–50 GHz at 300 K, 55 GHz at 77 K |
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.
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