| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 5 pcs |
| Layers | 2 Layers | Board Type | Single PCB |
| Dimensions | 84.33 x 127.76 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 10/10mil |
| Surface Finish | HASL Lead Free | Min Hole Size | 0.5mm |
| Solder Mask | Matte Green | Silkscreen | White |
| Stack-up | Default | Impedance Control | No |
This production run covered five single 2-layer FR4 PCBs measuring 84.33 × 127.76 mm, built to a standard 1.6 mm thickness with 1 oz copper. The 10/10 mil track and spacing along with 0.5 mm minimum holes followed conventional geometry, allowing standard process parameters while requiring exact registration for the matte green soldermask, white silkscreen, and HASL Lead Free finish. No impedance control or blind vias were specified, keeping the focus on core fabrication consistency for this low-volume order.
Engineering review and material preparation preceded precise circuit imaging and etching to define the copper features cleanly. Solder mask application delivered even coverage and sharp openings, followed by molten solder coating and hot air leveling that produced flat, uniform pads free of lead. Each step was sequenced to maintain surface quality across all five boards without deviation from the default stackup.
Electrical testing verified continuity and isolation on every board before shipment. The complete sequence took 2.2 days and resulted in five consistent 2-layer FR4 PCBs with reliable HASL Lead Free surfaces ready for assembly.
2 layer FR4 PCBs deliver cost-effective solutions for most electronic designs. Their simple structure enables consistent quality and efficient production cycles.
Real Engineering Queries (EQ) and DFM issues for 2 Layer FR4 PCB (double-sided boards) from actual production reviews. Learn how to avoid common problems with via treatment, silkscreen on pads, solder mask openings, hole attributes, board edge clearance, and other frequent design pitfalls.
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| FR4-20260731-032 | FR4 PCB | 2 | 100 x 120 | Black | HASL Lead Free | 5 | View detail |
| FR4-20260730-005 | FR4 PCB | 2 | 168 x 107 | Green | HASL with Lead | 5 | View detail |
| FR4-20260727-018 | FR4 PCB | 2 | 44.8 x 57 | Matte Black | HASL Lead Free | 20 | View detail |