source:Other information release time:2023-05-13 Hits: Popular:PCB Assembly company
When a strange layer PCB board appears in the design, the following methods can be used to achieve balanced layers, reduce the cost of PCB board production, and avoid PCB board bending. The following methods are arranged according to excellent parts.
1. A layer of signal layer and use. If the power layer of the PCB board is an occasional number, the signal layer is a magic number. This method can be used. The increased layer does not increase costs, but it can shorten the delivery time and improve the quality of the PCB board.
2. Add an additional power layer. If the power layer of the PCB board is a odd number and the signal layer is an occlusal number, this method can be used. A simple method is to add a ground layer in the middle of the layer without changing other settings. First press the PCB plate of the odd number layer, and then copy the strata in the middle to mark the remaining layers. This is the same as the electrical characteristics of the thickened layer.
3. Add a blank signal layer near the center of the PCB layer. This method minimizes the imbalance of layers and improves the quality of the PCB board. First, press the strange layer, and then add a layer of blank signal layer to mark the rest. It is used in the microwave circuit and the hybrid medium (the medium has different dielectric constants) circuits.
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