| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 10 pcs |
| Layers | 4 Layers | Board Type | Single PCB |
| Dimensions | 43.81 x 86.99 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | HASL Lead Free | Min Hole Size | 0.3mm↑ |
| Solder Mask | Black | Silkscreen | White |
| Stack-up | Default | Impedance Control | No |
This batch consisted of ten standard 4-layer FR4 PCBs, each measuring 43.81 × 86.99 mm with a finished thickness of 1.6 mm and 1 oz copper throughout. The design used a minimum track and spacing of 6/6 mil together with 0.3 mm minimum hole size, fitting conventional fabrication tolerances. Black soldermask and white silkscreen were applied for clear contrast, while HASL Lead Free provided a uniform, solderable finish suited to standard assembly.
Manufacturing followed the planned sequence beginning with engineering review and material preparation, then inner layer imaging, circuit etching, layer stack alignment, and high pressure lamination. Solder mask application was followed by molten solder coating and hot air leveling to create an even surface. Every board completed electrical testing to confirm continuity and isolation.
The order was delivered in 2.7 days with stable registration and surface quality across the full set. For this compact multilayer board without impedance control or blind vias, the process remained straightforward yet maintained consistent layer-to-layer accuracy and reliable HASL Lead Free coverage.
This order also received positive feedback from the customer regarding the consistent quality and reliable delivery. View the full customer review→
Discover how AIVON manufactures 4 Layer FR4 PCBs, including multilayer stackup design, layer alignment control, fabrication processes, manufacturing challenges, and real production experience from customer orders.
Real multilayer FR4 PCB CAM review cases covering stack-up confirmation, impedance control, copper balance, via tenting, and edge clearance EQs. Discover practical DFM best practices for 4-layer and higher boards to reduce engineering queries, prevent warpage, and improve first-pass yield.
| 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 |