The Difference Between Single Layer PCB Vs Multi Layer PCB

The Developing of an electronic circuit project basically requires PCB manufacturing. Though there are so many PCB types available on the market today. In this article, we will be look at the single-layer PCB and multi-layer PCB. Meanwhile each of them has distinct advantages that can help you decide between the two. Plus, the various practical applications will benefit your project.

If you find this article interested in reading more about these two PCB types, then feel free to read as we explain more about it.

Now What is Single Layer PCB?

Which is also known as single-sided printed circuit board, however a single-layer PCB is a very basic circuit board.

Meanwhile note that the Electronic Components are soldered only one side. Moreover the other side contains a conductive path. This boards have only one conductive layer, which is usually made of copper. They may also come with a substrate layer.

Let Talk About Advantages of Single Layer PCB

1. Inexpensive

Generally, a single-layer PCB is less costly because of its simplistic design. That’s because it can be developed in a time-efficient manner without depending on a large number of PCB material. Though it doesn’t require much knowledge.

2. Quickly Manufactured

Meanwhile with it's simple design and low-resource reliance, single-layered PCBs may be manufactured in no time! Of course, that’s a very big advantage, especially if you need a PCB as soon as possible.

3. Easy to Produce

It is very easy to produce because the popular single-layer PCB can be designed without technical difficulties. That’s because it offers a simple design process so manufacturers and professionals can produce them without any problems.

4. You can order in Bulk

However because of their easy development process, anyone who's interested can order plenty of these PCB types at the same time. The buyer may even expect to see a drop in costs per board if you order in bulk.

Now Let's Talk About Disadvantages of Single Layer PCB

1. Limited Speed and Capacity

As we all know the what has advantage equally has Disadvantages now this circuit boards offer minimal options for connectivity. Which simply means that the overall power and speed will diminish. Additionally, it's operational capacity decreases as a result of its design. Meanwhile note that the circuit may not function for high-power applications.

And it does not give much Space Complex devices will not benefit from a single-layer circuit board. That is because it only offers a very little space for extra SMD Components and connections. Moreover wires coming in contact with each other will cause the board to operate improperly. However the best practice involves assuring that the circuit board provides enough space for everything.

3. Larger and Heavier

Note this is very important you will need to make the board larger to provide additional capabilities for various operational purposes. Meanwhile, doing this will also increase the product’s weight as well.

However the Application of Single Layer PCB because of their low manufacturing cost, single-sided boards are popular in many household appliances and consumer electronics. Meanwhile this are only popular for devices that can store little data. 

Some examples include:

Coffee makers

LED lights

Calculators

Printers

Radios

Power Supplies

Varying Sensor Types

Solid State Drives (SSD)

What is Multilayer Layer PCB?

A multilayer PCB consists of double-sided boards which is stack atop each other. Normally, this feature three double-sided boards, meanwhile you can stack as much as you wish for your project.

Meanwhile it is very important to note that an odd number of layers may produce a twisting or warping effect after the soldering process. So you are suggested to use an even number of layers instead.

Advantages of Multilayer Layer PCB

1. Complex Projects

The complex devices depends on additional components and circuits which usually need a multi-layer PCB. However You can expand the board with additional layer integrations. Which makes it suitable for additional circuits that feature extra connections, which otherwise won’t fit on a standard board.

2. More Durable

Note that additional layers increase the board’s thickness, making it durable. Which will then ensure longevity and allow it to survive unexpected events, including drops.

3. Connection

Many components usually need more than one connection point. In this state, a multi-layer PCB only needs an individual connection point. Generally, this advantage contributes to the device’s simple design and lightweight features.

4. More Power

Bear in mind that adding more density to a multi-layered PCB makes it practical for power-intensive devices. Generally, this only means that it can operate more quickly and efficiently. Meanwhile the increased capacity makes it suitable for powerful devices.

Disadvantages of Multilayer Layer PCB

1. More Expensive

Noted that you will have to pay more with a multi-layered circuit board since it needing additional materials, expertise, and time to develop. For this reason, you should make sure that using a multi-layer component is more advantageous than the price.

2. Lengthy Lead Time

In Multi-layer boards, it will take longer to develop. However this is due to essential parts that needs locking so that each layer will form an individual board. Meanwhile bear in mind that each of these processes contributes to the overall completion time.

3. Repairs can be Complex

If a multi-layered PCB experiences problems, note that it may be difficult to repair. Meanwhile Some of the internal layers may not be viewed from the outside, making it harder to pinpoint what’s causing component or physical board damages. Though, you will need to consider the number of integrated components on the board because it makes the repairs more difficult to complete.

Application of Multi Layer PCB

A Multi-layer PCBs gives many benefits for applications that needs cross-talk. Here, we listed some of the applications for these circuit board types.

Satellites

Heart monitors

GPS

Computers

Smartphones

Cat scan

X-ray

Space probes

Weather analysis

The Difference Between Single Layer PCB Vs Multi Layer PCB

1. Manufacturing Process

The single layer PCB undergoes a very long manufacturing process. Basically, it involves using of many CNC machining processes to make the board. Moreover the entire process involves cutting-drilling-graphics placement-etching-solder mask and printing.

After all that, it goes via surface treatment before being tested, inspected, and packaged for shipping. However, multilayer PCBs are made through a special process. Which involves overlaying prepreg and foundational material layers together through high pressure and temperature.

Meanwhile this makes sure that air won’t become entrapped between each layer. Also, this means that resin will cover the conductors and the adhesive securing each layer together melts and cures correctly.

2. Material

However note that Single-layer and multi-layer PCBs are being manufactured using metal, FR-4, CEM, Teflon, and polyimide materials. then, copper is the mostly the common choice.

3. Cost

Basically, single-layer PCB is less costly than a multi-layer PCB. That’s mainly because of the materials being used, time to produce, and expertise. Meanwhile other factors may affect the price, including size, lamination, lead time, etc.

4. Application

Normally, single-layer PCBs are normally used for simple devices, while multi-layer PCBs are more applicable for advanced technology, such as smartphones.

What should you consider before buying?

Bear in mind that before purchasing a single-layer or multi-layer PCB, you should consider its intended purpose. Meanwhile if you are developing a complex project, you will need to choose the multi-layer PCB option. The Simpler projects will only need a single-layer PCB. Also, consider other factors, including the size and shape, to suit your needs.

Summary

As you have learned,Note that a single-layer PCB is the most popular choice because of its simplicity and in-general purposes. However on the other hand, a multi-layer PCB can be used for complex projects that needs sufficient space and connections. Of course, each of them has its advantages and disadvantages, but they can just as easily suit your needs.