| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 5 pcs |
| Layers | 4 Layers | Board Type | Panel PCB |
| Dimensions | 90 x 150 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 4/4mil |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.2mm |
| Solder Mask | Matte Green | Silkscreen | White |
| Stack-up | Custom | Impedance Control | No |
For this production run, five 4-layer FR4 panel PCBs were manufactured to dimensions of 90 x 150 mm. The boards employed a custom stackup at 1.6 mm thickness with 1 oz copper throughout, 4/4 mil minimum trace and spacing, and 0.2 mm minimum hole size. Matte green soldermask, white silkscreen, and immersion gold ENIG surface finish were selected to satisfy both functional and visual requirements without impedance control.
Manufacturing followed a controlled sequence of engineering review, material preparation, inner layer imaging, and circuit etching to maintain registration on the tighter geometries. Layer stack alignment, high-pressure lamination, solder mask application, electroless nickel deposition, and immersion gold deposition were executed in succession. Electrical testing at the conclusion verified continuity and isolation across all five panels.
Completed in 3.5 days, the order yielded consistent panel quality with accurate feature definition and reliable layer bonding. The execution balanced the custom stackup and finer 4 mil geometries with standard thickness, delivering panels ready for immediate downstream assembly.
Standard multilayer solution offering practical routing density and controlled impedance for industrial and consumer electronics.
In-depth guide to the most frequent Engineering Queries (EQ) and DFM issues in Multilayer FR4 PCB (4/6/8+ layers) production. Real factory insights on stack-up confirmation, impedance control, copper balance, inner layer design, via treatment, registration, and practical prevention strategies.
| 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 |
| FR4-20260609-017 | FR4 PCB | 4 | 103.68 x 69.19 | Green | HASL Lead Free | 10 | View detail |
| FR4-20260605-042 | FR4 PCB | 4 | 65 x 100 | Green | HASL Lead Free | 5 | View detail |