| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 20 pcs |
| Layers | 2 Layers | Board Type | Panel PCB |
| Dimensions | 396 x 564 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.3mm↑ |
| Solder Mask | Blue | Silkscreen | White |
| Stack-up | Custom | Impedance Control | No |
For this order of 20 2-layer FR4 PCB panels measuring 396 × 564 mm, manufacturing followed a custom stackup at 1.6 mm thickness with 1 oz copper. The 6/6 mil minimum trace and spacing represented standard geometry, complemented by 0.3 mm holes, blue solder mask, and white silkscreen. Immersion gold ENIG surface finish was deposited to provide stable solderability and long-term contact reliability across the large panel format.
Execution began with engineering review and material preparation, then moved through circuit imaging and etching to define the patterns. Solder mask application preceded the controlled electroless nickel and immersion gold deposition steps, ensuring uniform plating thickness on both sides of every panel. The sequence was timed to maintain registration accuracy without introducing thermal stress to the 1.6 mm substrates.
Full electrical testing verified net continuity on all 20 panels prior to shipment. Completed in 2.4 days, the run delivered consistent board quality suited to standard assembly requirements, confirming reliable process control for this ENIG-finished 2-layer panel configuration.
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 |
| FR4-20260628-010 | FR4 PCB | 2 | 60 x 120 | Green | HASL Lead Free | 5 | View detail |
| FR4-20260619-010 | FR4 PCB | 2 | 121 x 121 | Green | HASL Lead Free | 50 | View detail |