How do manufacturers of printed circuit boards fabricate a pcb?

Posted on 2021-01-06

Why do PCB manufacturers use copper for manufacturing PCB?

Manufacturers of printed circuit boards are providing foundational building blocks of all electronic devices in the modern world. Simple to complex electronic devices of your daily use just possible because of PCB boards.

Basically, PCB boards are the basis on which all modern electronic devices work. All modern progress has become possible. Today it has become a rapidly emerging technology. In fact, these boards have solved all the electronics problems which you never can consider to solve before.

This guide will help you to find all information that you want to know about PCBs. Moreover, you will also learn why manufacturers of printed circuit boards use copper in PCB.

manufacturers of printed circuit boards

What is a printed circuit board?

The printed circuit board is actually a thin board that PCB board manufacturers create from,

  • composite epoxy;
  • fiberglass;
  • or other laminate materials.

Modern electronic designers are rapidly using these boards as the base in most electronic devices. Because the PCB board helps to move the electricity on the way where you want to transfer it. Further, you can see their uses in several electronic and electrical components.

For example,

  • Radios;
  • Beepers;
  • Pagers;
  • Radar;
  • Computer systems, and many, many more.

Why is it called a printed circuit board?

Actually, a PCB board is a special kind of board that PCB manufacturers create for connecting electronic parts. Manufacturers of printed circuit boards create an electrical path directly onto an insulated surface with the help of printing via a stencil.

This stencil is generally a shape that manufacturers cut into paper or board by using a special spot of ink. Furthermore, this ink can conduct electricity in the same way just like wires can. Hence, this whole method has known as a printed circuit or printed wiring.

What is inside a circuit board?

PCB boards are generally a flat laminated composite created with the help of non-conductive substrate materials. Moreover, this flat composite surface is actually perfect in order to support all the components that manufacturers solder or attach to PCB.

Whereas the conductors of copper connect all the components to each other electronically.

Important components inside a PCB board

Here we are describing the 6 primary components inside a Printed Circuit Board (PCB). Such as,

  1. prepreg
  2. laminate
  3. copper foil
  4. solder mask
  5. nomenclature
  6. final finish.

How many layers does a PCB have?

Manufacturers of printed circuit boards create a different number of layers inside a PCB board. The total number of layers depends on the number of separate conductor patterns. You will notice, that they are usually even in number.

Most electronic designers use PCB boards having 4 and 8 layers. Furthermore, PCB manufacturers can also create these boards by using up to 100 layers.

Single-layer PCB board:

A single layer board generally consists of,

  • a mechanical layer;
  • a keep out layer;
  • one routing layer;
  • an overlay layer;
  • a solder mask layer;
  • as well as a solder paste layer.

Multilayer PCB board:

A multilayer PCB board consists of all the above layers which we have mentioned above. As well as,

  • a mix of additional power planes;
  • ground planes;
  • and many more routing layers.

Why manufacturers of printed circuit boards use copper in PCB?

Basically, manufacturers of the printed circuit board use several materials to create them. All have their own importance and features. But among all those materials, copper is the best because of its countless attributes and characteristics.

In fact, the material of copper is highly conductive. Moreover, it has the ability to transmit electrical signals without losing electricity. The PCB manufacturers also use copper for maximum reliability.

Types of PCBs that manufacturers of printed circuit boards manufacturing

PCB manufacturers can classify PCB circuit boards on the basis of their,

  • frequency;
  • total number of layers;
  • and substrate.

Moreover, you can see other popular types of PCB circuit boards in the following list,

  • Single-sided PCB boards,
  • Double-sided PCB boards;
  • Multilayer PCBs;
  • Rigid PCB boards;
  • Flexible PCB boards;
  • Rigid-Flex PCB circuit boards;
  • High-Frequency PCB boards;
  • Aluminum backed PCBs.

What is a printed circuit board used for?

In fact, electronic designers use PCB boards to electrically connect and mechanically support all electronic components. Further, they connect all these electronic components with the help of conductive pathways, signal traces, or tracks that have etched from copper sheets.

Additionally, all these conductive pathways have laminated onto a non-conductive substrate.

manufacturers of printed circuit boards 2021

Which examples of PCBs you find in day-to-day life?

You can see that nowadays modern technology is playing a vital role in our day-to-day life.  But it will be right to say that we and our lifestyle is nothing without all these modern electronic tools.

Manufacturers of the printed circuit boards claim that as PCBs evolve, they will find new ways to serve us. Moreover, their need will also grow with the development of electronic technology. Further, here are some examples of the uses of PCB boards in our daily life:

Consumer electronics:

We can actually divide all the consumer electronics into the following categories. Such as,


Our latest smartphones, tablets, smart watches, radios, and many more

Home Appliances:

Alarm clock, microwave oven, coffee maker, refrigerator, all smart home, and kitchen tools, etc


Laptops, desktop PCs, satellite navigation, workstations, all screens, and peripheral devices

Entertainment Systems:

Our television, DVD players, stereo systems, gaming consoles, and much more

Industrial Applications:

We have collected some of the best examples of the industrial sectors where you can see the uses of PCB boards. Manufacturers of the printed circuit boards are also greatly serving our industrial applications. For example,

Industrial Equipment:

All assembly machines, ramps, and presses, etc.

Measuring Equipment:

All necessary equipment that electronic engineers use to control the pressure, temperature, and several other variables in the manufacturing process of all products

Power Equipment:

Power inverters, power supplies, power distribution as well as all power control devices, etc.

Automotive Applications:

As you can see that in the modern automotive industry, cars and all other vehicles are providing several latest electronics and electrical parts. Further, the uses of PCB boards have totally changed the experience of our automotive industry. Such as,

Media Devices:

More advanced dashboards that help to connect to the vehicle’s media player or radios.

Proximity Monitors:

The latest cars’ models consist of built-in sensors to help the driver to monitor all spots at large distances.

Control Systems:

Latest car control systems like fuel regulators, power supplies, as well as engine management systems

Medical devices:

Manufacturers of printed circuit boards are greatly serving the medical industry. Moreover, they are not only helpful to use in appliances but also in and treatment devices.

Why manufacturers of printed circuit boards make it green?

You might notice that the vast majority of PCB’s are green. Basically, there is a reason behind the green color. In fact, the green color of PCB boards is due to their solder mask.

Because the solder mask protects all the copper circuits that PCB manufacturers print on the fiberglass core. Further, it helps to prevent short circuits, and soldering errors, etc. Hence, this green color of the solder mask helps to give the board its appearance.


All wearable applications and disposable electronic devices depend on PCB boards. They have solved all issues which electronic designers were facing to produce complicated applications in the past. Today all the latest electronic gadgets whether they are smartphones or 3D printers, all are ideally working just because of PCBs.