PCB Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 5 pcs |
| Layers | 4 Layers | Board Type | Panel PCB |
| Dimensions | 233 x 179 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.2mm |
| Solder Mask | Green | Silkscreen | White |
| Stack-up | Default | Impedance Control | No |
Manufacturing Timeline
Logistics Information
Key Manufacturing Processes
Manufacturing Summary
This 4-layer FR-4 board measured 233 × 179 mm with 1.6 mm thickness, TG130 material, and asymmetric copper of 0.5 oz inner / 1 oz outer. Produced as 20 pieces in 2×2 panels for 5 sets, the order used ENIG surface finish with 2 µin gold thickness, green solder mask, and white silkscreen. Minimum holes were 0.2 mm with standard 6 mil line/space. Aluminum plugged vias were specified, and 8 mm process edges supported V-cut separation. The 3-day schedule included 100% flying probe testing.
DFM review focused on solder-mask and paste alignment. Stencil openings were larger than the corresponding solder-mask windows while copper pads existed underneath; the paste geometry was therefore transferred to the solder mask layer for consistency. Certain openings would have allowed solder deposition directly onto traces; these were adjusted by retracting the solder-mask windows to cover the traces and prevent unwanted wetting. The production files were prepared according to these recommendations, with confirmation requested that no further changes were needed to avoid delivery impact.
Confirmed solder-mask window adjustments and aluminum via plugging were implemented prior to production. The boards achieved consistent ENIG plating and reliable via filling within the accelerated timeline. Full electrical test reports and quality certificates accompanied the shipment, confirming the panels met the specified mechanical and electrical requirements.
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Real Production Records
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| FR4-20260717-013 | FR4 PCB | 4 | 43.81 x 86.99 | Black | HASL Lead Free | 10 | View detail |
| FR4-20260708-062 | FR4 PCB | 4 | 462.57 x 205 | Matte Black | ENIG (Immersion Gold) | 5 | View detail |
| FR4-20260630-014 | FR4 PCB | 2 | 126 x 145 | Green | ENIG (Immersion Gold) | 10 | View detail |
