Types of PCBs that we can produce
FS Tech is the china based PCB supplier that was established in 2004 as Integrated Electronics Manufacturer. We can not only provide comprehensive assembly services, but also produce various types of PCB boards.
Catalog of PCB Types
Several types of PCBs that FS Tech is best at
FS Tech has its own unique advantages in printed circuit board manufacturing: advanced PCB manufacturing equipment, excellent designer team and strict quality management system. For the last decade, we are providing services at the national level to all over the world. Among all the circuit boards we produce, these are the ones that have received the most praise from customers:
In addition to the above types, FS Tech also provides almost all types of PCBs that are commonly used in the industry also with high-quality materials that are needed for industry demands and uses.
From FS Technology you can get Rigid board up to 1-20 layers, Flex board 1-6 layers Rigid-Flex board 2-10L, (36/10) Aluminum/Copper board 1-2L. Below are more details on the different kinds of printed circuit boards that FS Technology recommends to you that we can produce, which will help you find the best board for your project.
Classification according to PCB soft and hard process
According to the different soft and hard processes of printed circuit boards, we divide them into flexible boards, rigid boards, and flexible and rigid boards. These three types of boards have different properties, features, advantages and disadvantages. This article mainly introduces various kinds of plates. If you are interested in a certain kind, you can click the link to go to its dedicated page for Further details.
Rigid PCBs are probably the most manufactured of all circuit boards. Its structure is sturdy but inflexible and cannot be changed to other shapes and forms after construction is complete. Depending on the requirements of the circuit, their layer types can be single, double or multi-layer. A rigid PCB consists of three parts, the substrate, the copper solder mask, and the top silkscreen. It is very common, the green motherboard used in our computer is a Rigid board. Its common applications include: X-ray machines, cell phones, laptops, sensors and communications equipment, etc.
Flex PCB, also known as flexible circuit board, or FPC for short. It is made of polyimide or polyester film with a polymer coating attached to the surface to protect the conductive circuit. Is a kind of PCB that can be modified and changed into other structures and shapes. Its flexible natures decrement in the project’s size and use of fewer components. It can be used in combination with rigid boards to form a wider range of forms. Flexible printed circuit boards are often used in consumer electronics, radio frequency and microwave applications. It plays a pivotal role in the medical industry.
These Rigid Flex PCBs are created through the use of rigid and flexible boards combined with a single platform. These boards provided rigidity as well as flexible natures according to the requirements of projects and circuits. The flexible part of the board is attached with the rigid materials that help to draw the closed layers of conductors hence small size boards are created. The weight of boards decreases through the use of flexible with rigid since it eliminates the use of connectors. Either these boards take some certain measures like 3D designing but have features to get molded in any shape and design. The use of 3D technology helps to use these boards for medical devices that needed certain types of accuracy and measurements. These boards are mostly used for aviation, medical devices and electronics projects since have less weight and easy-to-modify features.
Types by PCB layers
Printed circuit boards can be built in different layers depending on the requirements of the project and structure, including: single layer, double layer and multi-layer. Even if the manufacturer will try to meet the customer’s requirements on the number of layers as much as possible, it will still be limited by its own manufacturing capacity and materials. The following is the introduction of FS Technology to different layers of circuit boards.
Single Layer board
Because the components of this simple circuit board are gathered on one side of the board, and its wires are gathered on the other side, it is called a single-sided or single-layer board. Only one layer of this board has a copper layer at the substrate material. It is very commonly used in the electronics industry due to its cheap price and simple creation. As these boards come in a single layer so there is no intersection between the conductive layers that require larger areas for these boards. Either SMD or THT packages can be used in these PCBs.
Advantages of single-sided PCB:
- It is the easiest to design and manufacture of all circuit boards
- Due to its simple structure, it is extremely cost-effective for mass production
- The testing process is simple and easy to modify after problems are identified
Disadvantages of single-sided PCB
- The number of PCB components that can be used is limited
- The scope of application is small, and it is not suitable for complex applications
The board that has two-sided copper layers to make circuits with the connection of components is called a double-sided or double-layered boards. This kind of PCB has a conductive layer and a solder mask on each side of a single base layer. Electronic components are soldered on both sides of the PCB. Conductive holes are drilled and used to interact with two conductive layers. Just like single layer PCB this type of PCB can also have SMT and THT packages.
Advantages of Double Sided PCB
- Reduces the size of PCB
- Increases the density of PCB
- Brings more flexibility in design
- More efficiently, allows fabricating complex designs
- Cost effective, aids in routing where there are more components and less space clearance
Multilayer PCB: If PCB has more than 2 conductive layers up to 40 layers then such boards are known as Multilayer PCBs. Due to its unique PCB manufacturing process, the number of layers in a PCB is usually an even number. The structure of these boards is like a sandwich that has many double-sided layers with insulation materials among them. All layers are interconnected with the help conductive hole like in the case of a double-sided PCB. Higher layer counts are the basis for electronic engineers to design more complex products, while also making their jobs difficult.
Advantages of Multilayer Board Design
- Increase design flexibility
- It is a prerequisite for the production of smaller but more powerful electronic devices.
- High-speed layouts that cannot be achieved with single- or double-layered boards can be achieved with this type of design
PCB material types
There are different types of materials offered by FS Technology for PCB creation that is explained here. Almost all types of materials used in the PCB can be ordered by us to use in your projects. We will help to select the required materials for your project’s needs and design configuration.
FR-4, (High TG, Halogen-free)
The full form of FR4 is flame retardant number 4 denotes the woven glass reinforced epoxy resin. The specification of FR4 material highly depends on the manufacturer to get good features must consult FS Technology. Its main features are strength and resistance to moisture. It is used in PCB as an insulation provider and separates copper layers to make a connection with that enhances the strength of the boards.
High Tg is a mechanical feature that denotes the glass transition that is the largest value of temperature for the substrate to maintain this state and not get affected by temperature. The value of conventional PCB having FR4 has TG value about 130 to 140 centigrade medium value for Tg is 150 to 160 C and for high Tg is larger than 170 centigrades. High TG boards come with a high value of heat absorbance ability and water resistance ability to normal FR4 PCB.
The halogen-free material not use halogen elements of periodic tables that are chlorine, chlorine, or bromine iodine. The use of these metals releases hazardous material if burnt that is harmful to humans. So you get boards having halogen-free materials from the FS technology.
These boards are consists of a thinner layer of the substance having conductive nature. These boards are also called ALuminum bases, Aluminum Clad. The structure of aluminum PCB is like any other type of board. It uses a copper layer over that solder mask and at top silkscreen for component connection is used. Like other PCBs that use fiberglass or any other material for substrate, it uses metallic substances as substrate. But with that base aluminum is a hybrid. The metal parts is completely metallic substance but come with aluminum. These bards are created in one and two layers but multiple layers are difficult to process. These boards are used in LED lights and rectifier circuits. It is used in lights since aluminum has features to resist heat and save other parts of components from heating.
After their invention, these boards used amplifier circuits. The composition of these boards is that has 4 layers of structures and their based material called CCLs. They are like the FR4 board structures. Such as the base at the top has a silk screen then copper layers, insulation, and an aluminum base.
The term polyimide consists of two parts poly which means to polymers and imide means imides monomers. By making these two different types of polymer created. The natural and artificial process is used for the creation of polymer. These polyimides are used to make PCB boards called polyimide printed circuit board. The polyimide used for PCB boards is obtained from different types of chemicals through the use of the polymerizing process. The common types of polyimide are 2nd Generation, 3rd Generation, and Filled Polyimide.
The ceramic PCB was created through the use of a certain process in which the copper layer is attached to Alumina or SIC ceramic substrate through the application of high temperatures. this board comes with features a high level of heat transfer than other boards with that has good electrical features. The value of the expansion coefficient is less for this board. It has better functions and features than the FR4.
Teflon used polytetrafluoroethylene or PTFE as substrate materials and works in high-frequency applications. It has the ability to make communication of signal having a frequency of five gigahertz to larger. Its common applications are in microwave and Radio frequency circuits
The full form of PTFE is Polytetrafluoroethylene and used for Teflon PCB construction. It common applications are high-speed electronics projects. For circuits where RF and microwave signals are used FR4 material board will be expensive and also lose signal so PTFE is a fine option. Since PTFE increases the dielectric constant value then is good over the FR4.
The Rogers PCB is a special category of boards that uses high-frequency material for creation. These boards have a constant value of temperature and also offer good dielectric strength to the board. it is used for circuits where high speed and high frequency is needed. Different values of dielectric constant can be gotten through the use of rogers over the FR4. The value of the dielectric constant is about 2.55-10.2. Electric and dielectric losses are low for this board.
For these boards, there is the use of Taconic PCB substrates. These substances are known as ceramic-filled Polytetrafluoroethylene. These boards are commonly used in telecommuting and aviation projects. it is preferred since gives less dielectric loss as well electric signal losses at a lesser quantity.
Arlon is PCB material that is used to make high operation laminations and prepreg materials that are used in different projects based on PCB. These materials offer good features such as thermal, and mechanical strength then the FR4. This substrate exists in different types like woven glass and non-woven aramid. Common applications are in the military used instruments, heat sinks, and HDI in some communication projects
The Panasonic R-5575 comes in multiple layers structure with fewer losses and high-speed halogen-free material. Its common projects are radio antenna.. It used or miniaturinzing of PCB boarrds. It other features are good thermal behaviors and anti-aging factors. This material has resistance ot water. Its surface resistance value is1 x 10^8 MΩ
CME1 is the base material used for PCB construction that is only used for single-layer PCB substrate and is mostly used in industry. The main reason to use CME1 in single layers boards is due to lower prices than other materials with technology has advanced but this material is still used to make less expensive boards. The construction of these materials is very simple and has the ability to bear a large number of components so many components for single layer PCB can be assembled on the board.
This material is used for two layers boards that come in white colors, and glass epoxy configurations. Its mechanical strength is less than the FR4 but prices are low and can be the finest option than FR4.
PCB Types by Function
High frequency PCB
Manufacturers in the electronics manufacturing industry analyzed consumers and found two pain points. The pursuit of small devices and the need for high-speed transmission capabilities. In the PCBA process, SMT assembly can be used instead of THT to achieve miniaturization of electronic products. So how should we solve the high-speed and high-frequency signal transmission function?
High-frequency circuits give the answer. With the transmission of large amounts of data, high-frequency connectors such as USB4, HDMI, Thunderbolt, and DisplayPort have come out one after another. These high-frequency electronic products have the following two things in common:
- Signal transmission speed greater than 12Gbps
- Use this high frequency PCB type
At this stage, there are still many common problems in the use of data cable connectors: weak data transmission, reflection delay coupling problems, excessive impedance and traces. FS Technology believes that high-frequency PCB is the key to solving these problems, and this circuit board will also conform to the development trend of high-frequency electronic equipment. The following FS technology will briefly analyze and introduce it:
Characteristics that high frequency PCB must have
- The DK value is small and stable. Too high or the DK value fluctuates significantly due to the change of frequency, which will cause signal transmission delay.
- For this type of PCB, the DF value is extra important and the quality of the signal transmission is controlled by it
- The thermal expansion coefficient of this high frequency PCB should be the same as that of copper foil. If the two are different, the copper foil may be separated due to the alternating hot and cold phenomenon when the electronic product is running.
- Low water absorption. When this circuit board works in a humid environment, it will absorb moisture from the air, and the end result is that the DK and DF values are affected.
- Good heat resistance, chemical resistance, impact resistance, peel resistance, this requirement is almost the same as other kinds of PCB.
Materials that can be used to make this PCB
- Rogers 4350B HF, RO3001, RO3003
- ISOLA IS620 Electronic Fiber Glass
- Taconic RF-35 Ceramic
- Taconic TLX
Application scenarios of high frequency PCB
- High frequency data line
- Automotive Radar System
- Cellular telecommunication system
- Power Amplifiers and Antennas
- E-band point-to-point microwave links
- RFID tags
- mmWave applications\
According to Apple’s official report, in 2021, the sales of Apple’s mobile phones will reach 239 million units, making it the largest mobile phone brand worthy of the name. As fans of iPhones, we’ve always recognized its functionality, longevity, and smoothness. But even such a perfect product, it still has the common difficulty of electronic equipment—short standby time.
As an indispensable product in daily life, electronic products determine our quality of life and happiness index to a large extent. We know that electronic devices use batteries to deliver a stable voltage to electronic components, so that the internal electrons move directionally to form currents, so that electronic products operate. In this series of work, due to the concerns of PCBA technology, a large amount of current will be converted into heat loss. According to the survey, the waste heat consumption in PCBA exceeds 75%, which means that the standby time of the product can only play 25% of the original use efficiency.
As PCBA companies gradually attach importance to the thermal management performance of PCBs, IMS PCB, a circuit board type with efficient thermal management capabilities, has begun to be respected. Due to this unique advantage, IMS PCBA can maximize the power of electronic products. The following are the advantages and application areas of this type of PCB board summarized by FS Technology:
Advantages of this type of printed circuit board:
- Excellent thermal conductivity: The thermal conductivity of aluminum substrate IMS is 8-12 times that of FR-4, and the thermal conductivity is as high as 2.2/m·K
- Obvious heat dissipation efficiency: The use of SMT PCB assembly technology can reduce the volume of the finished product by increasing the density of components, but it makes the PCB lose its heat dissipation capability. IMS Insulated Metal Substrates are experts in addressing these deficiencies. The use of this type of circuit board plays an important role in dissipating the heat generated by the operation of electronic components and accelerating the reduction of the operating temperature of electronic components
- Ultra-large current carrying capacity: For the metal substrate of IMS, it can carry a higher current with the same thickness and the same trace width, allowing the use of a voltage of 4500V
- Premium Substrate Material: This type of PCB is typically filled with aluminum oxide, aluminum nitride, boron nitride, magnesium oxide, or silicon oxide
Different types of printed circuit boards that FS Technology can produce has greatly explained. We are offering PCB-based services with great accuracy and high-quality features since it is a reliable PCB provider in the industry that offers PCB manufacturing services to users’ requirements and demands. FS Technology is serving as one-stop solution PCBA service provider and also an overseas projects manager. We are equipped with professional engineers and the latest machines that are commonly used in the PCB industry to create professional PCBs.