| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 50 pcs |
| Layers | 2 Layers | Board Type | Panel PCB |
| Dimensions | 128 x 96 mm | Copper Weight | 2oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.8mm↑ |
| Solder Mask | Matte Green | Silkscreen | White |
| Stack-up | Custom | Impedance Control | No |
For this order of 50 panel PCBs, we manufactured 2-layer FR4 boards carrying 2oz copper on a 1.6 mm thickness with overall panel dimensions of 128 × 96 mm. The design specified a conventional 6/6 mil trace and spacing together with 0.8 mm minimum holes and a custom stackup. These parameters were processed according to the heavier copper requirements while maintaining edge definition and registration across the panels.
Engineering review and material preparation preceded circuit imaging and etching. Thick copper electroplating and controlled copper etching steps were performed to produce accurate conductor geometry on the 2oz layers. Matte green solder mask was applied and cured, followed by white silkscreen printing. The surface was then finished with electroless nickel deposition and immersion gold to form a uniform ENIG layer. Every panel received 100 % electrical testing to confirm net continuity and isolation.
The complete sequence from initial review to final inspection took 2.5 days, yielding panels with consistent solder mask coverage, sharp legend definition, and reliable ENIG surface quality. The finished boards provide the expected conductivity and protection suited to standard FR4 applications.
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 |