PCB Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | Flexible PCB | Quantity | 1000 pcs |
| Layers | 4 Layers | Board Type | Single PCB |
| Dimensions | 357 x 45.8 mm | Copper Weight | 1/3OZ |
| Thickness | 0.23 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.3mm↑ |
| Solder Mask | Black | Silkscreen | White |
| Material | Rolled Copper | Stiffener | Steel Sheet Stiffener |
Manufacturing Timeline
Logistics Information
Key Manufacturing Processes
Manufacturing Summary
This order comprised 1000 units of 4-layer FPC boards measuring 357 × 45.8 mm with an overall thickness of only 0.23 mm, built using 1/3 oz rolled copper on polyimide substrate. The manufacturing sequence included specialized polyimide material handling, inner layer imaging, circuit etching, and high-pressure lamination to achieve stable multilayer registration while preserving the required flexibility in this thin profile.
Steel sheet stiffeners were selectively bonded to provide localized reinforcement in designated areas. Following coverlay lamination, black soldermask and white silkscreen were applied before completing the immersion gold ENIG finish. Dynamic flex testing was performed on sampled boards to confirm bending endurance across the long, narrow format.
With standard 6/6 mil track spacing and 0.3 mm minimum hole size, the full batch passed AOI inspection and electrical testing with consistent results. Production was completed in 11.1 days, delivering reliable flexible circuits ready for end-use assembly.
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Real Production Records
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| FPC-20260821-065 | Flexible PCB | 4 | 111.25 x 16.75 | Yellow | ENIG (Immersion Gold) | 5 | View detail |
| FPC-20260819-026 | Flexible PCB | 4 | 59.8 x 65.5 | Yellow | ENIG (Immersion Gold) | 25 | View detail |
| FPC-20260810-032 | Flexible PCB | 4 | 357 x 45.8 | Black | ENIG (Immersion Gold) | 1000 | View detail |
