| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 5 pcs |
| Layers | 2 Layers | Board Type | Single PCB |
| Dimensions | 66.36 x 31.91 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | HASL Lead Free | Min Hole Size | 0.25mm |
| Solder Mask | Green | Silkscreen | White |
| Stack-up | Custom | Impedance Control | No |
These five 2-layer FR4 PCBs were produced as single boards measuring 66.36 × 31.91 mm with standard 1.6 mm thickness and 1 oz copper weight. The 6/6 mil minimum track and spacing together with 0.25 mm holes followed conventional geometry, allowing reliable etching and drilling without special constraints. Green soldermask and white silkscreen completed the stackup, while the chosen HASL Lead Free finish matched the customer's assembly requirements for this compact design.
We performed engineering review and material preparation first, then executed circuit imaging and etching to define the traces accurately. Solder mask application was followed by molten solder coating and hot air leveling to form a uniform HASL Lead Free surface. Each board received full electrical testing to confirm continuity and isolation.
The entire run was completed in 2.1 days, yielding five consistent boards that met all specified tolerances. This small-quantity standard FR4 PCB order illustrates efficient process control and repeatable results for conventional 2-layer designs using 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 |