PCB Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | FR4 PCB | Quantity | 25 pcs |
| Layers | 2 Layers | Board Type | Single PCB |
| Dimensions | 75 x 75 mm | Copper Weight | 1oz |
| Thickness | 1.6 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | HASL Lead Free | Min Hole Size | 0.4mm |
| Solder Mask | Green | Silkscreen | White |
| Stack-up | Default | Impedance Control | No |
Manufacturing Timeline
Logistics Information
Key Manufacturing Processes
Manufacturing Summary
This manufacturing record covers a production batch of 25 square 2-layer FR4 PCBs sized at 75 x 75 mm. The stackup followed the default configuration with 1.6 mm overall thickness and 1 oz copper weight on each layer. Given the 6/6 mil trace and spacing along with 0.4 mm minimum hole diameter, the order aligned with standard specifications, enabling efficient processing through material preparation, circuit imaging, and etching stages without complications.
Green solder mask and white silkscreen were applied to the boards prior to surface finishing. We executed the HASL Lead Free process using molten solder coating and hot air leveling, ensuring a flat and consistent coating across all pads. Subsequent electrical testing verified continuity and isolation on each of the 25 boards, supporting reliable end-use performance.
The complete order moved through all production steps in 2.3 days. This efficient turnaround for a small-quantity run of standard 2-layer FR4 PCBs with HASL Lead Free surface finish reflects the stable execution typical for these parameters.
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Real Production Records
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| FR4-20260708-079 | FR4 PCB | 2 | 323.77 x 379.03 | White | HASL Lead Free | 400 | View detail |
| FR4-20260708-015 | FR4 PCB | 2 | 15 x 41.7 | White | HASL Lead Free | 5 | View detail |
| FR4-20260630-014 | FR4 PCB | 2 | 126 x 145 | Green | ENIG (Immersion Gold) | 10 | View detail |
