| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 5 pcs |
| Layers | 2 Layers | Board Type | Single PCB |
| Dimensions | 60 x 120 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | HASL Lead Free | Min Hole Size | 0.3mm↑ |
| Solder Mask | Green | Silkscreen | White |
| Stack-up | Default | Impedance Control | No |
This production record covers five 2-layer FR4 PCBs in a single-board configuration, each measuring 60 × 120 mm with standard 1.6 mm thickness and 1 oz copper weight. The 6/6 mil track and spacing along with 0.3 mm minimum hole size represented conventional geometry that required no special routing or plating adjustments. Material preparation and circuit imaging proceeded directly from the engineering review, keeping the 1.5-day schedule on track while maintaining exact dimensional stability.
After etching, green solder mask and white silkscreen were applied in standard thickness. We then executed molten solder coating followed by hot air leveling to produce a uniform HASL Lead Free surface finish across all boards. Electrical testing verified netlist integrity on every piece, confirming that the simple stackup and absence of impedance control introduced no deviations during fabrication.
The order was completed without iteration, delivering five consistent 2-layer FR4 PCBs that met all specified parameters for hole registration, copper definition, and solderability. This small-quantity run illustrates routine execution of standard HASL Lead Free boards where process discipline ensures repeatable results from imaging through final test.
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 |
|---|---|---|---|---|---|---|---|
| FR4-20260630-014 | FR4 PCB | 2 | 126 x 145 | Green | ENIG (Immersion Gold) | 10 | View detail |
| FR4-20260619-010 | FR4 PCB | 2 | 121 x 121 | Green | HASL Lead Free | 50 | View detail |
| FR4-20260618-018 | FR4 PCB | 2 | 54.74 x 106.93 | Green | HASL Lead Free | 5 | View detail |