PCB Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 250 pcs |
| Layers | 4 Layers | Board Type | Panel PCB |
| Dimensions | 244 x 298 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 | White | Silkscreen | Black |
| Stack-up | Custom | Impedance Control | No |
| Blind/Buried Vias | No |
Manufacturing Timeline
Logistics Information
Key Manufacturing Processes
Manufacturing Summary
This 4-layer FR-4 board measured 244 × 298 mm at 1.6 mm thickness with 1 oz copper layers and TG150 material. The 3000-piece order (250 sets) used lead-free HASL finish, white solder mask, black silkscreen, and 6 mil line/space. Panelization followed customer layout at 3×4 with V-scoring for separation. Production confirmation was obtained after stackup and DFM adjustments, completing within 10 days.
The customer-specified lamination structure was reviewed against standard capability, leading to a proposed adjustment that maintained required performance. Slot hole tolerances were confirmed with PTH ±0.076 mm to accommodate process variation. Some silkscreen characters fell below minimum height with no room for enlargement, resulting in acceptance of potential minor blurring. Additional production numbering and date codes were added to the top layer per customer request, while other parameters followed system order data.
All clarifications and file updates were implemented before release to pressing and etching. 100% flying probe testing confirmed electrical integrity on delivery. For details on the lamination structure optimization, refer to the engineering case study.
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Real Production Records
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| 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 |
| FR4-20260618-018 | FR4 PCB | 2 | 54.74 x 106.93 | Green | HASL Lead Free | 5 | View detail |
