| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 25 pcs |
| Layers | 2 Layers | Board Type | Panel PCB |
| Dimensions | 61.02 x 55.5 mm | Copper Weight | 2oz |
| 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 | Custom | Impedance Control | No |
This production record covers 25 panels of 2-layer FR4 PCB, each measuring 61.02 x 55.5 mm with 2oz copper weight and 1.6 mm thickness. The standard 6/6 mil track and spacing along with 0.3 mm minimum holes placed the geometry in conventional territory, while the heavier copper demanded careful attention during plating. Material preparation followed the custom stackup to preserve registration and flatness across the panel format throughout the etching stages.
Thick copper electroplating built the specified 2oz layers before controlled copper etching defined the traces with required accuracy. Green soldermask and white silkscreen were applied, then molten solder coating and hot air leveling produced the HASL Lead Free surface. These steps delivered uniform coating thickness and clean pad surfaces suited to standard assembly processes on the panel PCBs.
Electrical testing verified continuity and isolation on every panel. The order completed in 1.6 days, yielding boards that stayed within all dimensional and copper-weight tolerances for this 2oz FR4 configuration with HASL Lead Free finish.
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 |
|---|---|---|---|---|---|---|---|
| FR4-20260708-079 | FR4 PCB | 2 | 323.77 x 379.03 | White | HASL Lead Free | 400 | View detail |
| FR4-20260708-015 | FR4 PCB | 2 | 15 x 41.7 | White | HASL Lead Free | 5 | View detail |
| FR4-20260630-014 | FR4 PCB | 2 | 126 x 145 | Green | ENIG (Immersion Gold) | 10 | View detail |