An Introduction to Single-Sided PCBs: A Beginner’s Guide

Single Sided PCB

Looking for the most comprehensive and elaborative guide for single-sided PCBs? The search is over with this informative guide, especially made for you! Take a look at the construction and manufacturing process of single-sided PCB and uncover its advantages, applications, basic components, design, advancements, and future trends.

Introduction to Single-Sided PCBs

First, let’s define a PCB, the overview of single-sided PCB, its advantages, and its applications!

What is a PCB?

Single Sided PCB

A PCB or printed circuit board is a type of board that is compacted but composed of intricate and well-aligned wiring to connect components electronically. This enables the energy current to flow freely between different components to send and receive signals, transmissions, and electricity. This serves as conductive material inside a device. Its wide range of applications makes it more electronically demanded on the market. It is considered the most essential part of any electronic device in the present time since it comes in a variety of forms: single-, double, multiple-, and high-speed PCB.

Overview of Single-Sided PCBs

Single-sided PCB design is the most common and easiest PCB to produce among the different forms of a printed circuit board. What is single sided PCB? This type of PCB is constructed through a simple and non-complex layout and can be produced in large numbers. It is composed of a conductive layer, which is typically copper, and wirings located respectively on each side. Being the easiest PCB to produce draws many benefits and advantages for manufacturers and electronic markets. Even though it is a simple design, single-sided PCB can be applied and used in various devices, equipment, and machines crucial in everyday life.

Advantages and Applications of Single-Sided PCBs

There are many advantages, and a large number of devices that a single-sided PCB can be applied to.

Outstanding Production – Since single-sided PCBs are easy to manufacture and can be produced in bulk numbers, it only requires fewer resources.

Cost-effective Price Value– It can be concluded that single sided PCB price is the lowest among the other PCB types, making them the most cost-effective PCB.

Efficient– Its simple layout makes it easy to produce quickly; it saves effort and time, making it more efficient.

Fewer Mistakes- Its simplicity equates to less failure and defectivity in manufacturing.

Easy Repairment– Provided that it is durable and can withstand for a long time when the time comes that there is something wrong with the device, single-sided PCB need not be replaced because it can easily be repaired.

In terms of single sided PCB application, this circuit board can be applied and utilized to different electronic devices, which include cameras, radios, timers, vending machines, stereos, printers, energy supplies, calculators, storage drives, and so much more. These are the following industrial sectors that utilized single-sided PCBs:

  • Construction
  • Military
  • Aerospace
  • Automotive
  • Communication Plant Systems

Basic Components of Single-Sided PCBs

Components of Single-Sided PCBs

Now that we know the applications and advantages of single sided PCB, let’s explore its basic components. The three essential components of single-sided PCB include:

Substrate Material

This material is basically the one that holds the components and circuit together because of its rigidity. This type of material is made out of either fiberglass or epoxy resin. Fiberglass is much more rigid than epoxy because the latter lacks resiliency and stronghold, unlike fiberglass. Substrates are generally utilized by different circuit boards because of their characteristics that provide standard quality grade printed circuit boards.

Conductive Layer

The single-sided printed circuit board only consists of one layer. From the word itself, single-sided, it only has a single layer of conductive material, which is commonly a copper layer on one side. The conductive layer is responsible for electrical connection, current, and power. It has the capability and capacity to hold sufficient electricity that will be used in the circuit, flowing from the source to different components. This conductive material’s thickness will vary depending on the electricity it needs to hold. For example, if the single-sided PCB is used in a calculator, the conductive material only requires a thin layer since the current for calculators is not high voltage. A good quality conductive layer will ensure the best quality function of single-sided PCB.

Solder Mask

This basic component of Single-Sided PCB serves as the protection layer of the PCB. It protects the PCB against abrasion, scratches, and oxidation, avoiding contact with the other components that will cause a deficit function of the device. This will be placed and layered on the conductive layer’s top. It will help the circuit board’s function and will process sufficient and smooth flow of circuitry as it serves as a guarding material. A circuit board with a solder mask will most likely last and function for a long time

Designing Single-Sided PCBs

Designing single-sided PCB starts off by making a drawing frame that will serve as the base template of the layout. Being familiar with the components is crucial in order to create a schematic symbol. This will represent all the parts in your PCB layout. This is followed by the construction of component models with corresponding colors to identify them in the actual manufacturing of single-sided PCB. Symbols and linkage for the parts and titles are also included, like the name of the manufacturer, temperature, and power. After the schematic template and models, positioning them in the template is the next step. After that is the wiring and lastly the verification of the design.

Single Sided PCB Manufacturing Process

Single Sided PCB Manufacturing Process

After the design and layout, single sided PCB manufacturing process will now begin. This includes the following steps:

Design Print

The laser printer will be adjusted to high printing quality and paper will be placed on the printer. Cut the glossy part and remove it. Print on the other side and then trim the corners of the printed design.


Before the actual etching, cleaning the blank paper is needed. This will be done by using cleaning pads, soap, and water. Iron and press the printed paper on the circuit board with care and peel the excessive paper by wetting it. With complete protective clothing, mix the acid solutions: hydrochloric and hydrogen peroxide. Next is placing the PCB in the acid for 4 minutes. Remove it, wash, and clean it with varnish then toner.


In drilling, a steel drill bit 3/100 inch is important to use. Gently drill the holds and refrain from using too much force. After that, a polishing cloth is needed to remove debris.

Advancements and Future Trends

With the modern tools we have, manufacturing single-sided PCBs are within reach. Single-sided PCBs’ advancements and future trends are distinctive. The present demands for more sufficient and higher connectivity for devices, and with greater machinery that can withstand and meet society’s demands for technology, single-sided PCBs can provide the specifications for device manufacture. With great single-sided PCBs, broader platforms, connections, lines, and applications can be achieved. Skills and the capacity to create are the only keys to production. And adherence to the standard rule of manufacture is the platform to attain quality-graded single-sided PCBs on the market.

Miniaturization and High-Density PCBs

Thanks to the modern technology we have, high-density connections are possible. Having more connections only requires a small space and thus, the compaction of single-sided PCBs is offered. Designing modern PCBs can be done with much closer parts of the components. Reliable, high performance, and cost-effective are provided with this new design. Single-sided PCBs that are easy to produce due to their simple and easy layout are the best for small electronic devices requiring compact components. With single-sided PCB, the wiring and high-density connections throughout the device’s function are attained.

Flexible Single-Sided PCBs

Flexible single-sided PCBs are provided with the new materials offered. Instead of rigid fiberglass, a polyimide material can be used. This is a very flexible layer that can hold the components or parts of the circuit board. Being flexible, this can be applied and used in a wide selection of electronic devices, whether large machines or compacted ones. A wide range of industries demands flexible printed circuit boards that can fulfill their function despite being small structures. Several industries include aerospace, military, healthcare, automotive, engineering, and construction segments.

Integration with IoT and Wireless Technologies

The latest single-sided PCBs allow for more connections. IoT systems have wireless technologies that offer wide connectivity choices from sensors to routing lines and applications. It has a more sufficient platform and range that allows for more wireless functions. Wireless connections allow users to have a smooth and easy way of doing tasks designated to them. With its help, it brings convenience to people, which leads them to successfully achieve their goals without any worries. Lots of wireless devices have already been introduced today to be able to keep up with the continuous innovations in our technology.


Single-sided PCBs are widely used in various electronic and industrial sectors due to their simplicity in construction and high production rates in manufacturing. This simple design PCB is highly sought after on the market by various sectors such as aerospace, electrical, engineering, construction, military, healthcare, medical, and pharmaceutical.


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