PCB Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| PCB Type | HDI PCB | Quantity | 840 pcs |
| Layers | 8 Layers | Board Type | Panel PCB |
| Dimensions | 152.5 x 114 mm | Copper Weight | 2oz |
| Thickness | 1.8 mm | Min Track / Spacing | 6/6mil↑ |
| Surface Finish | ENIG (Immersion Gold) | Min Hole Size | 0.2mm |
| Solder Mask | Blue | Silkscreen | White |
| HDI Structure | 3 | Blind/Buried Vias | Yes |
Manufacturing Timeline
Logistics Information
Key Manufacturing Processes
Manufacturing Summary
This order comprised 840 panels of 8-layer HDI PCB, each measuring 152.5 × 114 mm and finished at 1.8 mm thickness with 2 oz copper on all layers. The 3-step HDI structure required blind vias created through sequential lamination and laser microvia drilling, supported by a custom stackup. Blue soldermask, white silkscreen, and immersion gold ENIG surface finish were applied to provide reliable pad protection and long-term solderability on the heavier copper without impedance control.
We performed via filling and plating after laser drilling, followed by thick copper electroplating and controlled etching to maintain the 6/6 mil geometry accurately across the panels. Material preparation and high-pressure lamination stages were synchronized to manage registration on the 2 oz inner layers, while electroless nickel and immersion gold deposition completed the finish. These process choices addressed the demands of the blind via network and overall board density.
Batch AOI inspection and 100% electrical testing confirmed via integrity and circuit continuity throughout the full quantity. The completed HDI panels left production with consistent layer alignment and plating quality, meeting the customer's specifications for this thicker, copper-heavy build.
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Real Production Records
| Order ID | PCB Type | Layers | Dimensions | Solder Mask | Surface Finish | Quantity | Action |
|---|---|---|---|---|---|---|---|
| HDI-20260729-036 | HDI PCB | 8 | 97 x 93.4 | Black | ENIG (Immersion Gold) | 100 | View detail |
| HDI-20260720-0001 | HDI PCB | 8 | 188 x 100 | Matte Black | ENIG (Immersion Gold) | 125 | View detail |
| HDI-20260718-0002 | HDI PCB | 4 | 37 x 26.6 | Green | ENIG (Immersion Gold) | 20 | View detail |
