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PCB Tech

PCB Tech

The efficiency of the Multi-layer PCB design on the number of layers
2021-08-12
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Author:IPCB

The efficiency of the Multi-layer PCB design on the number of layers. Therefore, the correct choice of layers is very important. This article focuses on important considerations that should be considered when designing 1-40 layer PCBs.

Important factors to consider when choosing PCB design 1-40 layers


Let's start with consideration. Perhaps, you have an idea of the number of layers required by the PCB. However, you need to check why a multilayer PCB is more ideal than a single-layer PCB. Pay attention to the following points to ease your confusion:

PCB manufacturing / ipcb pcb factory

PCB manufacturing / ipcb pcb factory

1. Purpose: Where will the PCB be used? As mentioned earlier, PCBs are used in various types of simple to complex electronic devices. Therefore, you must figure out whether your application has minimal or complex features.

2. Required signal type: Did you know that printed circuit boards are also used in microwave applications? The choice of the number of layers also depends on the type of signal they need to transmit. The signal is divided into high frequency, low frequency, ground or power. For applications that require multiple signal processing, you will need a multilayer PCB. These circuits may require different grounding and isolation.

3. Through hole type: The choice of through hole is another important factor to consider. If you choose blind buried vias, you may need more internal layers. Therefore, you can meet multi-layered requirements accordingly.

4. The density and number of signal layers required: The determination of the PCB layer is also based on two important factors-signal layer and pin density. The number of layers in the PCB increases as the pin density decreases. The pin density is 1.0. For example, a pin density of 1 will require 2 signal layers. However, pin density<0.2 may require 10 layers or more.

5. The number of planes required: The power and ground planes in the PCB help reduce EMI and shield the signal layer. Therefore, the choice of layers will again depend on the number of planes required.

6. Manufacturing cost: Although it is the main requirement, it is one of the decisive factors in choosing the number of layers in a 1-40 layer PCB design. The cost of PCB manufacturing depends on multiple layers. Multi-layer PCBs are more expensive than single-layer PCBs. Manufacturing costs will largely depend on the above requirements.

7. Delivery time: The delivery time based on 1-40 layer PCB design depends on all the above factors. For example, if your design requires a single layer, the lead time may be less. If you want to order PCBs for complex industrial electronic equipment, the delivery time will increase.


If you are unable to make a decision based on the above factors, it is best to discuss with the IPCB manufacturing plant, IPCB note 1-40 layer PCB board manufacturing process.