Aerospace PCB Copy: Recovering Mission-Critical Boards Under NDA
Aerospace PCB copy is the process of reverse-engineering an existing avionics, satellite, or flight-control circuit board to produce a functionally identical reproduction—complete with schematic, Gerber data, BOM, and (where authorized) firmware recovery. The service exists because aerospace hardware often outlives OEM support by decades, and a single obsolete board can ground an aircraft or idle a test rig. Our engineers work under project-specific NDAs, applying IPC-6012DS (Space and Military Addendum) tolerances to every deliverable.
Why Aerospace Boards Are Harder to Copy Than Commercial Hardware
Aerospace PCBs are not oversized consumer boards. They carry design constraints that directly affect reverse-engineering difficulty, cost, and turnaround. Here is what separates them from standard industrial clones.
| Parameter | Typical Commercial Board | Aerospace Board |
|---|---|---|
| IPC Class | Class 2 | Class 3 / Class 3A (space) |
| Layer Count | 2–8 | 6–24+ |
| Base Material | FR-4 (Tg 130–170 °C) | Polyimide, Rogers, high-Tg FR-4 (Tg ≥ 170 °C) |
| Trace / Space | 5/5 mil (0.127 mm) | 3/3 mil (0.076 mm) common |
| Via Technology | Through-hole, some blind | Blind, buried, stacked micro-vias |
| Conformal Coating | Optional | MIL-I-46058C / IPC-CC-830B required |
| Operating Temp Range | 0 °C to +70 °C | −55 °C to +125 °C (or wider) |
| Controlled Impedance | Sometimes | Nearly always, ±5 % or tighter |
Conformal coatings must be chemically stripped before component mapping begins. Polyimide substrates require adjusted cross-section parameters during layer imaging. And controlled-impedance traces demand that our stackup reconstruction matches the original dielectric constants—not just the copper geometry.
What Makes an Aerospace PCB Copy Project Succeed?
Success hinges on three things: accurate layer imaging, correct material identification, and impedance-validated stackup reconstruction. Our process addresses each one explicitly.
1. Non-Destructive X-Ray and CT Scanning
We start with high-resolution X-ray imaging to map inner-layer routing, buried vias, and embedded passives without destroying the donor board. For boards above 12 layers, industrial CT scanning at 5 µm resolution captures via stacks and plane splits that 2D X-ray misses. This matters because aerospace boards frequently use stacked micro-vias connecting non-adjacent layers—miss one, and the clone fails at power-on.
2. Layer-by-Layer Delamination and Optical Capture
When a second donor board is available (or the board is already non-functional), we delaminate layer by layer using controlled thermal cycling. Each copper layer is photographed at 2400 DPI minimum, then vectorized into Gerber RS-274X or ODB++ format. Pad geometries are verified against the original footprint libraries for MIL-spec connectors (MIL-DTL-38999, MIL-DTL-83513, etc.).
3. Stackup and Impedance Reconstruction
Using cross-section microsectioning per IPC-TM-650 2.1.1, we measure dielectric thickness, copper weight, and prepreg type. These feed into our impedance calculator to match the original board’s characteristic impedance within ±5 %. On a recent 16-layer avionics controller using Rogers RO4350B cores, our reconstructed stackup hit 50.2 Ω against a 50 Ω target—within 0.4 % of the original TDR measurement.
4. BOM Recovery and Obsolete Part Cross-Referencing
Aerospace boards routinely contain components that went end-of-life 10–20 years ago. We identify every part down to manufacturer lot codes, then provide a cross-reference table with form-fit-function equivalents sourced through AS6171-qualified distributors. If a direct replacement does not exist, we flag it and propose a design modification with full documentation.
Deliverables for Every Aerospace PCB Copy
- Schematic (PDF + editable source) — Altium, KiCad, or OrCAD format per your request
- Gerber RS-274X / ODB++ fabrication files — with drill files, stackup notes, and impedance tables
- Bill of Materials — manufacturer PN, description, quantity, package, and cross-reference alternates
- Assembly drawings — component placement, polarity marks, test-point callouts
- Netlist verification report — schematic-to-Gerber cross-check confirming 100 % net match
- Impedance simulation report — modeled vs. measured values for every controlled-impedance net class
Firmware readout is available only for boards you own or have documented authorization to recover. All firmware work is handled under a separate NDA addendum.
NDA and IP Protection: How We Handle Classified and ITAR-Adjacent Work
Every aerospace PCB copy project begins with a mutual NDA signed before any board ships to our facility. We do not require ITAR registration because we do not handle defense articles directly—clients are responsible for export-control classification. However, our workflow supports ITAR-conscious customers:
- Boards ship in tamper-evident packaging with chain-of-custody logging.
- Project data is stored on air-gapped workstations, not cloud servers.
- All files are delivered via encrypted transfer or physical media, per client preference.
- Post-project data destruction is available on request, with a signed certificate of destruction.
Similar confidentiality protocols apply across our industry-specific copy services, from semiconductor equipment board recovery to marine electronics PCB duplication.
Typical Turnaround and Pricing Factors
| Board Complexity | Layers | Typical Turnaround | Starting Price Range |
|---|---|---|---|
| Simple sensor / interface card | 2–4 | 10–15 working days | $800–$1,500 |
| Mid-range controller / PSU | 6–10 | 15–20 working days | $1,500–$4,000 |
| Complex avionics / radar module | 12–24+ | 20–35 working days | $4,000–$12,000+ |
Pricing scales with layer count, BGA/micro-via density, number of unique components, and whether firmware recovery is included. Boards with conformal coating removal add 1–3 days. Rush service (50 % surcharge) is available for AOG (aircraft-on-ground) situations.
Common Aerospace PCB Copy Scenarios
Legacy Avionics Sustainment
A maintenance depot needs replacement flight management computer boards for a fleet of turboprops. The OEM ceased production in 2004. We reverse-engineered the 14-layer polyimide board, cross-referenced 23 obsolete ICs, and delivered fabrication-ready files in 22 working days. The depot fabricated 40 boards at a fraction of the OEM’s last-time-buy price.
Satellite Ground-Station Equipment
A ground-station operator needed five replacement modem boards for a Ka-band uplink system. The original 10-layer Rogers/FR-4 hybrid stackup required precise dielectric modeling. Our impedance simulation matched the original 75 Ω differential pairs within ±3 %, and all five cloned boards passed acceptance testing on first power-up.
UAV Autopilot Module
An unmanned systems integrator lost access to a sub-contracted autopilot design after a vendor dispute. With proof of IP ownership, we recovered the 8-layer HDI board, extracted the STM32-based firmware (read-protection level 0), and delivered a complete technical data package. The integrator moved production to a domestic CM within six weeks.
Related Industry PCB Copy Services
Aerospace is one of several high-reliability sectors we serve. If your boards span multiple domains, these related services may apply:
- Railway signalling board recovery — EN 50155 / IPC Class 3 compliance
- Test and measurement PCB copy — precision analog front-ends and high-speed ADC boards
- Power supply PCB duplication — MIL-STD-704 aircraft power converters included
- Mining equipment electronics cloning — ruggedized boards with similar environmental specs
Can you copy a PCB that still has conformal coating?
Yes. We chemically strip conformal coatings (acrylic, silicone, urethane, or parylene) before component identification and layer imaging. Stripping adds 1–3 days depending on coating type and board size. Parylene coatings require plasma etching and take the longest.
Do I need to send more than one board for aerospace PCB copy?
One board is sufficient for non-destructive reverse engineering using X-ray and electrical probing. If the board is already non-functional or you can spare a second unit, destructive delamination yields faster, higher-fidelity inner-layer data—especially on 12+ layer designs.
How do you handle obsolete components that have no direct replacement?
We flag every end-of-life part in the BOM and provide form-fit-function alternates sourced through AS6171-qualified channels. If no drop-in exists, we propose a minimal redesign—documented with a change notice—that preserves the original board outline, mounting, and connector pinout.
Is aerospace PCB copy legal for military or defense boards?
Legality depends on your ownership of the design IP and applicable export-control regulations (ITAR/EAR in the US). We require proof of ownership or written authorization from the IP holder before starting work. Every project is covered by a mutual NDA, and we can accommodate additional contractual requirements your compliance team specifies.
What file formats do you deliver?
Standard deliverables include Gerber RS-274X (or ODB++), Altium/KiCad/OrCAD schematic source files, Excel BOM, PDF assembly drawings, and an impedance simulation report. We can also export IPC-2581 if your fabricator requires it.
Check feasibility for your project
Send the chip marking or board details and tell us what you need to recover. Add clear photos if available.
Request a feasibility reviewWorking on a board like this?
Send the chip marking or two photos. You get feasibility, lead time and price within 24 hours, and the check costs nothing.
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