Your Trusted Partner for Embedded PCB Fabrication
What Is Embedded PCB?
Ready to learn more about embedded PCB? As engineers in Viasion state, an embedded PCB is a circuit board embedded inside a system or device. According to Viasion’s experience, this type of PCB often consists of components such as transistors, resistors, and capacitors, which are critical to the operation of the embedded system.
Our engineers point out it also acts as an interface between the embedded system and other components, allowing it to communicate with external devices. Embedded PCB boards are typically found in embedded systems, such as computers, gaming consoles, and embedded electronic control units. They conclude that the design of embedded printed circuit boards is customized to the specific application they will be used for, and they are more efficient and reliable than standard PCBs. More importantly, embedded PCBs offer reliability and flexibility that cannot be achieved with traditional printed circuit boards.
From the above, you can have a general understanding of PCB embedded components. However, someone may ask, “Can you provide high-quality embedded PCBs?” Of course, Viasion is a trusted embedded components PCB manufacturer who adept at producing high-quality embedded PCBs. So, let’s glimpse Viasion’s advantages as a professional PCB manufacturer.
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Why Choose Viasion as Your Embedded PCB Supplier?
- Viasion has been trying to provide the best embedded printed circuit possible to meet customers' needs, ensuring that the products are efficient and reliable.
- We work hard to stay up-to-date with the latest technology and trends to make our embedded PCBs suitable for various applications.
- Viasion is devoted to offering superior embedded electronic circuits at competitive prices so all customers can benefit from our expertise.
- Given that Viasion is a trusted embedded PCB manufacturer, you can rest assured that your product will be of the highest quality.
Types of Embedded PCB
When two or three components, such as resistors, capacitors and inductors, are embedded in the PCB, the circuit board can be said to be embedded passive components PCB.
- Embedded Resistor PCB (Embedded Resistor PCE), PCB embedded passive components are resistors.
- Embedded Capacitor PCB (Embedded Capacitor PCI), the passive components embedded in the PCB is capacitive.
- Embedded Inductor PCB (Embedded Inductor PCB), the passive components embedded in the PCB are inductors.
- Embedded in various passive components of the PCB, collectively known as embedded passive components PCB (Embedded Passive PCB).
The Background of Embedded PCB
- With the miniaturization, thinness and high speed of electronic products, the assembly density of components on the PCB is getting higher and higher, and the transmission speed of electrical signals is getting faster. Therefore, it is challenging to meet the increasingly high assembly requirements by improving the wiring density and multilayer of the PCB alone.
- High-speed computing systems and communications equipment in high-frequency, high-speed digital signal transmission, to improve the integrity of the transmitted signal is usually achieved by strictly controlling the value of the characteristic impedance (Z0) in the transmission line and the use of a large number of matching resistors or capacitors. However, this large number of chip resistors and capacitors will occupy a large part of the PCB area and space, affecting the limits of the PCB to achieve high-density assembly.
- At the same time, these conductive holes and wires used for matching resistors (or capacitors) have inductive capacitance, which affects the signal transmission impedance and the decoupling effect of capacitance, thus creating problems with the integrity of the transmission line signal.
- If these components are embedded in the PCB so that the same area of the PCB, the installation of surface-mounted devices (SMD) space significantly increases while also improving the need for impedance matching of signal transmission characteristics, so in recent years, embedded resistors, capacitors and other passive components of the PCB have been rapid development. However, some of the current technology could be better. Its superiority is increasingly subject to electronic The manufacturing industry's attention to become one of the development directions of PCB will be increasingly mature and widely used.
The Application Range and Advantages & Disadvantages of Embedded PCB
Advantages
As discrete (non-embedded) passive components are not only assembled in large numbers and occupy a lot of space on the PCB board such as GSM phones contain more than 500 passive components, accounting for about 50% of the area of the PCB panel assembly, such as 50% of the passive components can be embedded inside the PCB (or HDI board) to calculate the size of the PCB board can be reduced by about 25%, thus making the number of pilot holes reduce the number of conductive holes significantly, but also to reduce and shorten the connection wires, etc. Therefore, not only can it increase the flexibility and freedom of PCB design wiring, but it also can reduce the amount of wiring and shorten the length of wiring, thus significantly improving the degree of density of the PCB (or HDI board) and shortening the signal transmission path.
The reliability of PCB (or HDUBUM) assemblies can be significantly improved by burying the required passive components inside the PCB. Because of this processing method, the soldering (SMTAK PHT) points on the PCB surface are significantly reduced, thus improving the reliability of the assembled board and considerably reducing the chance of failure caused by soldering points.
In addition, the embedded passive components can be effectively “protected” to improve reliability. As these embedded passive components are used as a whole embedded inside the PCB, unlike discrete (or discrete) passive components with pins soldered (or glued) to the PCB board connection pads, they will not be subject to atmospheric moisture, harmful gas erosion and reduce or damage passive components. Therefore, the way embedded passive components can significantly improve the reliability of PCB assemblies.
Passive components are embedded into the high-density PCB so that the electrical performance of the electronic interconnection has been significantly improved. Because it eliminates the discrete passive components required to connect the pads, wires, and their leads soldered to form a circuit, any such a circuit will inevitably produce parasitic effects, namely stray capacitance and parasitic inductance. This parasitic effect will also become more severe with the increase in signal frequency or square pulse wave front time. Therefore, eliminating this type of fault will undoubtedly improve the electrical performance of PCB assemblies (signal transmission distortion is significantly reduced).
At the same time, because the passive components embedded inside the PCB, surrounded by tight protection, will not change its functional value (resistance value, capacitance value and inductance value) because of dynamic changes in the working environment, it is in a very stable state, which is conducive to improving the stability of passive component function, reducing the chance of functional failure of passive components.
Using such process methods can significantly save the cost of the product or PCB assembly parts. For example, in the study of embedded passive components of the radio frequency circuit (EP-RF) model, equivalent to the low-temperature co-fired ceramic substrate (LTCC) of the PCB substrate (respectively, embedded in the same passive components), according to statistics, the cost of components can be saved 10%, the price of the substrate can be saved 30%. In comparison, the assembly (welding) costs can be saved by 40%. At the same time, the ceramic substrate assembly process and sintering process are difficult to control, while the PCB substrate embedded passive components (EP) can be completed using the traditional PCB manufacturing process, thus significantly improving production efficiency.
Disadvantages
Of course, any one process method has certain limitations, the shortcomings of the embedded passive components PCB are.
One is the current embedded passive components with small functional values, for enormous resistance values, capacitance values and inductance values of components, but also the need to develop functional characteristics of the importance of large embedded passive components materials.
Second, the embedded passive components of the operational characteristic value error control are more complicated, especially with screen leakage printing of flat-type embedded passive components materials. As a result, the operating characteristic value error control is more complicated. Although laser technology can trim and control the functional error of the embedded passive components, not all embedded passive components can be trimmed using this method to meet the design technology requirements. The latest research on the embedded method of thin film resistors has improved the accuracy of resistance values.
Thirdly, very skilled engineers are needed for embedded PCB design. So it is very important to find really experienced team for printed circuit boards design for embedded systems.
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Frequently Asked Questions
As mentioned above, an embedded blank PCB board is a circuit board embedded inside a system or device containing components such as transistors, resistors, and capacitors.
1. Compact size – Embedded circuit boards are smaller than standard circuit boards, making them ideal for limited-space applications.
2. Customizable design – Embedded printed circuit board can be designed to meet specific requirements and needs of the user’s project or application.
3. High-reliability performance – embedded components PCBs have been tested and certified to guarantee reliable performance even in challenging conditions such as extreme temperatures, shocks and vibrations, dust or moisture exposure etc.
4. Power reduction capabilities – embedded passives PCBs use less power than traditional printed circuit boards, which helps save money on energy costs over time.
5. Versatile connection options – Embedded PWB can support various connection types, including USB, Ethernet, Wi-Fi, Bluetooth etc., allowing for a wide range of connectivity options that may not be available with other designs.
Based on the explanation of our engineers, embedded bare PCB board distinguish themselves from standard PCBs in that they are specifically designed to be embedded into another device or product.
1) Proper PCB design for embedded systems is the first thing, experienced engineers for embedded PCB design are always needed; 2) A high reliable embedded PCB manufacturer is a must; 3) Embedded PCB assembly is also very important since a lot of IC chips and BGA chips may be used.
Yes, except embedded passives PCB fabrication, we also supply embedded PCB assembly service, including PCB embedded components like resistors, capacitors, transistors and copper coin.
Typically, embedded printed wiring board are more expensive than regular PCBs, given the additional complexity and specialized components they require.
Increased miniaturization
Lower power consumption
Improved reliability
Increased functionality
Enhanced security
Normally, resistors, capacitors and transistors can can be embedded into the PCBs. Sometimes, copper or other metal parts are also embedded into PCBs to achieve special functions, we can this kind of circuit boards as embedded copper coin PCB.
Although the two terms looks similar , but they are completely different. Embedded PCB means PCB embedded components like resistors and capacitors are embedded into the PCB, but PCB in embedded system means printed circuits used embedded computer system normally.
