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Why Use Printed Circuit Boards?

Jun. 30, 2021

Printed circuit boards (PCBs) are the basic building blocks of most modern electronic devices. Whether it's a simple single-layer board used in a garage door opener, a six-layer board in a smart watch, or a 60-layer ultra-high density and high-speed board used in supercomputers and servers, a printed circuit board is where all the other electronic components are assembled. Next, the PCB supplier will share the following content with you.


Semiconductors, connectors, resistors, diodes, capacitors and radio devices are mounted on and "talk" to each other through PCBs.


PCBs have mechanical and electrical characteristics that make them ideal for these applications. Most PCBs made in the world are rigid, and about 90% of PCBs made today are rigid boards. Some PCBs are flexible, allowing circuits to be bent and folded into shape, or sometimes they are used for flexible circuits that can withstand hundreds of thousands of bending cycles without any break in the circuit. These flexible PCBs represent about 10% of the market. A small percentage of these types of circuits are called rigid flex circuits, where one part of the board is rigid - ideal for mounting and connecting components - and one or more parts are flexible, providing the benefits of the flex circuits listed above.



Printed Circuit Boards

Traditional PCBs can be as simple as a single-layer circuit, or they can be 50 or more layers. They consist of electrical components and connectors connected by conductive circuits, usually copper, designed to route electrical signals and power within and between devices.


PCB's were developed in the early part of the 20th century, but there has been an escalating development in the technology to date. advances in PCB technology and widespread adoption have kept pace with the rapid development of semiconductor packaging technology and have enabled industry professionals to invest in smaller, more efficient electronics.


Why use printed circuit boards?

PCBs offer many advantages over traditional wired circuits. Their small, lightweight design is suitable for many modern devices, while their reliability and ease of maintenance lend themselves to their integration into complex systems. In addition, their low production costs make them a very cost-effective option.


These qualities are some of the reasons why PCBs can be used in a variety of industries, including markets such as



Medical electronics have benefited significantly from the introduction of PCBs. Electronic devices in computers, imaging systems, MRI machines and radiation equipment are all advancing from the electronic capabilities of PCBs.


The thinner and smaller dimensions of flexible and rigid flex PCBs allow for the manufacture of more compact and lightweight medical devices such as hearing aids, pacemakers, implantable devices, and truly miniature cameras for minimally invasive procedures. Rigid-flex PCBs are a particularly ideal solution when seeking to reduce the size of complex medical devices, as they do not require flexible cables and connectors that take up valuable space in more complex systems.



Rigid, flexible and rigid-flex PCBs are commonly used in the aerospace industry for instrument panels, dashboards, flight control, flight management and safety systems. Continued advances in aerospace technology have increased the need for smaller, more complex PCBs for aircraft, satellites, drones and other aerospace electronics. 

With the elimination of connectors, flexible and rigid flex circuits offer superior durability and mission survivability. This makes them suitable for high-vibration applications, while their small, lightweight design reduces overall equipment weight, resulting in lower fuel consumption requirements. For applications where reliability is critical, they serve as a highly reliable solution.



In the military, PCBs are used for equipment that is often subjected to severe shock, impact and vibration applications, such as military vehicles, rugged computers, modern weapons and electronic systems such as robotics, guidance and targeting systems. 

As military technology advances to meet changing customer needs, more and more equipment integrates advanced computerized technologies that require the electrical and mechanical properties inherent in flexible and rigid flex packages. These types of electronic packages can withstand thousands of pounds of gravity without failure.





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