What Is a 1 Layer PCB Copy?
A 1 layer PCB copy is the reverse-engineering process of recreating a complete, fabrication-ready Gerber file set from an existing single-sided printed circuit board. Our engineers scan the board, extract every trace, pad, and drill location, verify dimensions against the physical sample, and deliver production files you can send straight to any fab house. Single-sided boards are the fastest category we handle — typical turnaround is 2–3 working days, and project costs start between $80 and $150 depending on board area and component density.
Why Would You Need a 1 Layer PCB Copy?
Single-layer boards are everywhere: consumer appliances, LED drivers, power supplies, relay modules, legacy industrial controllers, and low-cost IoT sensor nodes. The need for a 1 layer PCB copy usually falls into one of these situations:
- Original design files lost or never received. A contract manufacturer delivered boards years ago, and the OEM never held the Gerber data.
- End-of-life component redesign. An obsolete through-hole part needs a footprint swap, and you need editable source files to make the change.
- Second-source qualification. Moving production to a new fab requires verified Gerber and drill files — not just a bare board.
- Failure analysis baseline. You need a known-good reference layout to compare against field-return units.
In every case, the goal is identical: turn a physical PCB into a digital file set that faithfully reproduces the original design.
How We Reverse-Engineer a 1 Layer PCB Copy — Step by Step
1. High-Resolution Optical Scan
We place the bare (or desoldered) board on a calibrated flatbed scanner at 1200 DPI minimum. For boards smaller than 50 × 50 mm, we use a microscope-mounted camera to capture fine-pitch SMD pads. The scan produces a dimensionally accurate bitmap that becomes our tracing reference.
2. Component Removal & Cleaning
If the sample arrives populated, we desolder all components, catalog part markings, and clean residual flux. This exposes every pad, via, and silkscreen marking. On single-sided boards, most components are through-hole, so desoldering is straightforward — hot-air or solder-sucker, no BGA rework station needed.
3. Trace Extraction & Netlist Rebuild
Using the bitmap overlay in our CAD environment (typically Altium Designer or KiCad), an engineer manually traces every copper feature: tracks, pads, fills, and any ground planes. Trace widths are measured at multiple points; on a typical 1 layer PCB copy we see 10–25 mil (0.254–0.635 mm) signal traces and 40–80 mil (1.0–2.0 mm) power traces. The extracted layout is compared against a continuity-tested netlist to confirm every connection.
4. Drill File Generation
Drill holes are measured with pin gauges or calibrated calipers. Common through-hole drill sizes on single-sided boards range from 0.8 mm to 1.2 mm for component leads, and 3.0–3.5 mm for mounting holes. We generate an Excellon drill file with tolerances held to ±0.05 mm.
5. Dimensional Verification
Board outline, slot cuts, and critical mounting-hole positions are verified against the physical sample using a granite-surface height gauge or a coordinate-measuring fixture. We hold board outline accuracy to ±0.1 mm — well within IPC-2221B Class 2 requirements.
6. Deliverable Package
You receive a complete file set ready for fabrication and assembly:
| Deliverable | Format | Notes |
|---|---|---|
| Copper layer (bottom) | Gerber RS-274X | Single copper layer; mirrored as needed for solder side |
| Solder mask | Gerber RS-274X | Pad openings matched to original |
| Silkscreen | Gerber RS-274X | Component outlines and reference designators |
| Board outline | Gerber RS-274X | Includes slots and cutouts |
| Drill file | Excellon (NC Drill) | Plated and non-plated separated |
| BOM (optional) | Excel / CSV | Part values, packages, and cross-references |
| Schematic (optional) | PDF + editable source | Netlist-verified against layout |
What Makes a 1 Layer PCB Copy Harder Than It Looks?
Engineers sometimes assume single-sided means trivial. In practice, several issues catch people off guard:
- Jumper wires on the component side. Many older single-layer designs use hand-soldered wire jumpers to cross traces. These are easy to miss during scanning and must be captured as zero-ohm links or documented jumpers in the layout.
- Phenolic (FR-1 / FR-2) substrate. Budget single-sided boards often use paper-phenolic laminate instead of FR-4. The material is brittle and delaminates easily during desoldering, potentially destroying pad geometry. We photograph pads before and after removal to catch any damage.
- Solder-side-only silkscreen. Some legacy boards print markings on the copper side only. After component removal, ink can lift with the flux, so we document markings from the populated board first.
- Non-standard board thickness. Single-sided boards range from 0.8 mm to 2.0 mm. If the copy will be used in the original enclosure, thickness must match exactly, or the board won’t seat against standoffs.
None of these issues are showstoppers, but they add 15–30 minutes of extra verification per board. Our 1 layer PCB copy process accounts for all of them by default.
Cost & Lead-Time Reference
| Board Area | Component Count | Typical Cost (Gerber only) | Turnaround |
|---|---|---|---|
| ≤ 50 × 50 mm | < 20 | $80 – $100 | 2 working days |
| 50 × 50 – 100 × 150 mm | 20 – 60 | $100 – $150 | 2–3 working days |
| > 100 × 150 mm | 60+ | $150 – $250 | 3–4 working days |
Add-ons: BOM extraction adds $30–$60; schematic reverse-engineering adds $80–$200 depending on circuit complexity. Rush service (24-hour) is available at 1.5× standard pricing for boards under 100 × 150 mm.
When to Step Up to a Multi-Layer Copy
If your board has copper on both sides, it is a double-sided PCB copy project — even if one side carries only a ground fill. The distinction matters because a 2-layer board requires registration alignment between top and bottom copper, which changes the scanning and verification workflow entirely.
For designs that route power and ground on internal planes, you are looking at a 4-layer board copy with internal plane recovery or higher. Boards with controlled-impedance requirements — common in RF and high-speed digital — demand multi-layer stackup and impedance reconstruction. And specialty substrates like polyimide flex circuits fall under our flexible PCB copy service.
If you are unsure how many layers your board has, send us a photo of the edge profile. We can usually identify the layer count from the lamination lines visible in a cross-section or even a well-lit macro photo.
Material & Fabrication Notes for Single-Sided Reproduction
When we hand off your Gerber package, we include a fabrication note specifying:
- Material: FR-4 (default) or CEM-1 / FR-1 if the original uses phenolic and cost matching matters.
- Copper weight: 1 oz (35 µm) standard; 2 oz if the original carries high-current traces wider than 60 mil.
- Surface finish: HASL lead-free (default), or ENIG / OSP if specified.
- Board thickness: Matched to measured original ± 0.1 mm.
- Solder mask color: Green standard; matched to original on request.
These notes ensure your fab house reproduces a board that is mechanically and electrically interchangeable with the original.
Quality Checks Before Delivery
Every 1 layer PCB copy project goes through a three-stage QC gate:
- DRC (Design Rule Check): Automated check for minimum trace/space violations, acid traps, and unconnected pads.
- Overlay comparison: The generated Gerber is overlaid on the original scan image at 1:1 scale. Any deviation > 0.05 mm triggers a manual review.
- Netlist audit: Every net in the extracted layout is compared against a hand-probed continuity map of the physical board. Mismatch count must be zero before release.
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 reviewFrequently Asked Questions About 1 Layer PCB Copy
How long does a 1 layer PCB copy take?
Most single-sided boards are completed in 2–3 working days from the time we receive the physical sample. Small boards (under 50 × 50 mm) with fewer than 20 components can often ship in 2 days. Rush 24-hour service is available for an additional 50% fee.
Can you copy a single-sided board that uses phenolic substrate?
Yes. FR-1 and FR-2 phenolic boards are common in consumer electronics and power supplies. The main challenge is that phenolic delaminates more easily during desoldering, so we photograph all pad geometry before component removal. The output Gerber can target either phenolic or FR-4 fabrication — we note both options in the fab spec.
Do I need to send a populated or bare board?
Either works. A populated board lets us catalog component values and markings for BOM extraction. A bare board speeds up scanning since no desoldering is needed. If you only have one working unit you cannot risk, we use non-destructive scanning with components in place and note any obscured pads for verification after selective removal.
What if my board has wire jumpers on the component side?
We document every jumper wire as a routed trace or zero-ohm resistor link in the Gerber output. Jumpers are a common workaround on single-sided layouts where traces cannot cross. Our netlist audit confirms each jumper connection matches the original board’s continuity.
Related Board-Type Services
- Double-sided board cloning and file recovery
- Copying four-layer boards with buried planes
- Polyimide flex circuit reverse engineering
- RF and microwave PCB copy
Working 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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