If you interested in 4-layer Rogers Tin-sprayed PCB Board, please contact with us. We follow the quality of rest assured that the price of conscience, dedicated service. 4-layer PCB means that the printed circuit board is made of 4 layers of fiberglass. There are four wiring layers: top layer, bottom layer, VCC and GND. Through holes, buried vias and blind vias are generally used for interlayer connection. There are more buried vias and blind vias than double-sided. In addition, try not to run signal lines on the VCC and GND layers.
4-layer PCB boards have many advantages over double-sided boards. They can be designed to be more compact, have significantly improved noise resistance, and are easier to layout.
| Name: | 4-layer Rogers tin-spraying PCB board |
| Board material: | Rogers4350B |
| Number of layers: | 4L |
| Board thickness: | 1. 6mm |
| Outer copper thickness: | 2 OZ |
| Inner copper thickness: | 1 OZ |
| Minimum aperture: | 0. 3mm |
| Minimum line width/line spacing: | 5mil |
| Surface treatment: | tin-spraying |
| Product application: | base station sub-board |
| Process difficulty: | lead-free tin-spraying |