Help Center
PCB Capabilities & Instructions
In response to our customers' strong requests, GLinkCPCB has added multiple laminate structures and proprietary structures to our offerings (currently we have already added more than 200, with continuous updates,), which can greatly satisfy product structure designs and impedance requirements. At the same time, we offer standard free impedance testing (impedance tolerance ±20%) and precision impedance testing (chargeable). You can freely choose these when making an order.
Impedance Control Design Information
1. Copper Layer Thickness
| Outer Layer Finished Copper Thickness (1 oz) | Inner Layer Finished Copper Thickness (0.5 oz) | Inner Layer Finished Copper Thickness (1 oz) |
|---|---|---|
| 1.6 mil | 0.6 mil | 1.2 mil |
2. Soldermask Thickness (Dielectric Constant 3.8)
| Soldermask Thickness On FR-4 | Soldermask Thickness On Copper | Soldermask Thickness Between Traces |
|---|---|---|
| 1.2 mil | 0.6 mil | 1.2 mil |
Impedance Calculation
contact marketing@glinkpcba.com if your customed Controlled Impedance.
Laminate Illustrations
Key Reminders
1. The PP thickness in the laminate structure is the thickness after lamination and is not the thickness as provided by the supplier;
2. The DK value in the laminate structure is deduced according to the actual situation and not the raw data provided by the supplier;
3. The obsolete 2313 laminate structure used 2313 type PP sheets, it is the same thickness and DK(Er) value as the new 3313 type PP sheets and can be used with confidence;
4. The copper thickness in the laminate is the finished product copper thickness. For example, for an inner layer of 0.5 oz, the thickness provided by the supplier is 0.0175 mm. However, due to small amounts of loss during inner layer treatment steps such as deoxidation, an actual thickness of 0.0152 mm is more accurate.
Ordering Information
Currently we are capable of 4–32 layer PCB manufacturing. For a complete list of the laminate structures available, please contact marketing@glinkpcba.com:
