Thin PCB Board

2023-01-11 12:01:32 Thin PCB Board 437 Viewed

What is Ultra Thin PCB boards

The thin PCB board is a special PCB board of printed circuit board. There are aluminum base board, high TG board, flexible board, high frequency board, soft and hard combined board in the PCB market. Thin PCB board is suitable for a wide range of high-tech industries. However, the existing thin PCB board has a lot of internal environmental problems. In the use state, the external structure of the thin PCB board is not well placed in the air dry place, causing damage to the electronic components, which greatly reduces the usability and reliability of the components on the thin PCB board.

Application of Ultra Thin PCB Boards

Ultra-thin PCB Boards is mainly suitable for RFID smart cards, IC cards, ID card keychains, SIM cards, contact smart cards, electronic tags, NFC technology and equipment, mobile phone charging modules, wearable devices, drawing boards, subway coins, etc. Ultra-Thin Flexible PCB Applications: Ultra-Thin Flexible PCB are present in wearable and implantable medical devices, SIM cards, metro coins and drawing boards. Here are pictures of extra thin FR4 Printed Circuit Board (thickness from 0.15mm to 0.40mm). For more technology or parameters, please click "Extra Thin PCB" .

Ultra-Thin Flexible PCB Applications

Ultra Thin PCB Production Capacity

Base material: FR4 Tg 130, Tg 170, Tg 180

Board Thickness: 0.1~0.3 mm

Copper thickness: 0.5 OZ, 1 OZ, 2 OZ, 3 OZ

Outline: Routing, punching, V-Cut, laser cutting

Solder mask: Bare/White/Black/Blue/Green/Red Oil

Legend/Silkscreen Color: Black/White

Surface finishing: Immersion Gold, OSP, ENEPIG, HAL-LF (not popular)

Max Panel size: 400*400 mm 

Min Panel size: 3.5*3.5 mm 

Min single size: 25*25 mm 

Min vias: 0.1 mm

Min traces space/width: 4mil/4mil

Packing: Vacuum

Samples L/T: 10~15 Days

MP L/T: 12~18 Days

Ultra Thin PCB FAQ

The following are frequently asked questions and answers from our customers for Ultra Thin PCBs. Hope this information can help you understand Huihe PCB. If you have more questions about Ultra Thin PCB, please feel free to consult us.

1. What is the minimum thickness of an Ultra Thin PCBs?

Minimum thickness of Ultra Thin PCBs: ≥0. 1MM +/- 0. 05mm.

2. What is the minimum thickness of a double-layer ultra-thin PCB?

Minimum thickness of double-layer Ultra Thin PCBs: ≥0. 15mm +/- 0. 05mm

3. What is the minimum thickness of a multilayer Ultra Thin PCBs?

3-layer Ultra Thin PCBs: minimum thickness 0. 3mm±05 mm;

4-layer Ultra Thin PCBs: minimum thickness 0. 35 mm + / - 0. 05 mm;

6-layer Ultra Thin PCBs: minimum thickness is 0.6mm +/- 0.08mm.

4. Can you control the impedance on the ultra-thin PCB?

We can control the impedance on the Ultra Thin PCBs.

5. What is the difference between FPC and ultra-thin PCB?

The materials of FPC and Ultra Thin PCBs are different; Ultra Thin PCBs is cheaper than FPC; FPC is more flexible than Ultra Thin PCBs.

The material of FPC is made of polyimide (PI), and the material of Ultra Thin PCBs is made of FR4 material.

FPC can be bent multiple times under the minimum bending radius; Ultra Thin PCBs can also be bent, but the bending radius is not fixed.

6. What is the common thickness of Ultra Thin PCBs?

The usual thickness of Ultra Thin PCBs is 0. 1mm to 0. 6mm.

7. What is the longest dimension of an ultra-thin PCB?

The longest dimension of Ultra Thin PCBs is 1000mm x 350mm,

8. What is the maximum size of the Ultra Thin PCBs?

The maximum size of Ultra Thin PCBs is 500mm x 500mm.

9. What is the minimum size of an Ultra Thin PCBs?

The minimum size of an Ultra Thin PCBs is 3. 5mm * 3. 5mm. If it is shipped in one piece, the minimum size we can do is 25mm * 25MM.

10. What is the minimum trace width and spacing for an Ultra Thin PCBs?

The minimum trace width of Ultra Thin PCBs is 4mil / 4mil; the minimum spacing of ultra-thin PCB is also 4mil / 4mil.

Ultra Thin PCBs Online Quotation


If you have any questions about ultra thin PCB or want to make ultra thin PCB, welcome to contact us today, Huihe PCB will be your reliable ultra thin PCB manufacturer to make your design come true!Please click here to quote online now, For more information on ultra thin PCBs, please contact us.



Thin PCB board can be single-layer thin PCB board or multi-layer thin PCB board, and the thickness of normal thin PCB board is between 1.00 mm and 2.0 mm. The smallest thin PCB board thickness is between 1L or 2L or 0.3 mm to 0.4 mm. However, when the thickness is high, such as about 0.6 mm, then we can call this PCB an ultra-thin PCB or a long and thin PCB.

The 0.4mm double-sided thin PCB board is used in the field of heat sinks for high-power products. How thick is the PCB board to be called a thin PCB board?

In fact, there is no absolute standard for thin PCB board. Generally, in the circuit board industry, board thickness below 0.6mm can be called thin PCB board, so many PCB manufacturers will promote the thin PCB board process to meet the 0.6mm production process. , but the real thin PCB board is far more than 0.6mm.

As the thickness of the PCB becomes smaller, the difficulty of the thin PCB board process increases, and the thickness of the Huihe PCB can reach 0.3mm and 0.4mm.

What are the tips for designing thin PCB boards?

Thin PCB board, because there are many problems in the internal environment of the circuit board, when in use, the external structure of the thin PCB board is not well placed in an air-dry place, and the surface of the thin PCB board accumulates water mist, so Water droplets form over time, causing damage to electronic components, thus reducing the service life of the thin PCB board, and also causing damage to the thin PCB board due to external factors, and the damaged components cannot be effectively replaced individually. The entire thin PCB board needs to be replaced, and the intact components cannot be effectively protected, thus greatly reducing the usability and reliability of the components.

1. The thin PCB board becomes thin and easy to warp, the residual copper foil on the surface layer and the bottom layer should be as close as possible during design, and the residual copper foil should be symmetrical.

2. Thin PCB board can use a high TG board to prevent high temperature deformation.

3. Thin PCB boards can be fully wrapped around when imposing, and a 10mm track is added in the middle of the imposition to reduce the number of impositions.

The thinner the thin PCB board, the cheaper it is?

Not all products are cheaper with fewer or smaller components. Just like chips at this stage, the smaller the area, the more expensive it is. The same is true for thin PCB boards. It does not mean that the thinner the cheaper, the same adding a layer will cost less.

PCB has two different structures: core structure and foil clad structure.

In the core structure, all the conductive layers in the thin PCB board are deposited on the core material; while in the foil structure, only the internal conductive layer of the circuit board is deposited on the core material, and the outer conductive layer is coated with a foil dielectric board. All conductive layers are bonded together through the dielectric using a multi-layer lamination process.

The nuclear material is double-sided foil-clad board in the factory. Because each core has two sides, the thin PCB board has an even number of conductive layers when fully utilized. Why not use foil on one side and core structure on the rest? The main reasons are: the cost of the thin PCB board and the curvature of the thin PCB board.

Cost advantage of even layer thin PCB board

Because there is one less layer of dielectric and foil, the cost of odd-numbered thin PCB board raw materials is slightly lower than that of even-numbered thin PCB boards. However, the processing cost of odd-numbered PCBs is significantly higher than that of even-numbered PCBs. The processing cost of inner layers is the same; but foil/The core structure significantly increases the processing cost of the outer layers.

Odd-layer thin PCB boards need to add a non-standard laminated core layer bonding process on the basis of the core structure process. Plants that add foil outside the core structure will lose productivity compared to the core structure. The outer core requires additional processing prior to lamination bonding, which increases the risk of scratches and etching errors on the outer layers.

In practice, a thin PCB board does not mean that the thinner it is, the cheaper it is. It is defined according to different products. Maybe a product will be much cheaper after reducing the area or cost, but thin PCB board products are technical products. , its functionality is still very different.

What is Thin PCB board?

Thin PCB board can be referred to as a PCB with thin PCB board compared to the standard type. Plus, it's more compact and lighter. This is due to its bulk copper characteristics and its reduced sheet material.

Thin PCB boards are suitable for any PCB application where high reliability and miniaturization play a major role. It helps miniaturization become easy and smooth with better performance through high-density PCB design.

Classification of Thin PCB board

There are two main types of long and thin PCBs. These are rigid thin PCB board and flexible thin PCB board.

Rigid thin PCB board

Rigid thin PCB board material for applications requiring 2D PCBs. Generally, we can apply them as packaging substrates for integrated circuits. Here, thin PCB board material can help convert the whole assembly into very thin components.

Application of Thin PCB board

Below are some areas where thin PCB boards are useful. These include:

Printer

Wearable

Automotive Engine Control Device

SIM card/TF card

Subway coins

Mobile phone charging module

Near field communication technology device

GPS system

Bar code device

Medical devices such as hearing aids and active implants

Ultra thin PCB Board

Committed to thin PCB board, high precision multilayer circuit board, allegro, special PCB board production. Ultra thin PCB board needs to have a complete circuit board production line and pcb board production experience, efficient supply of pcb board, complete technology.

Ultra Thin PCBs Quotation

If you have any questions about ultra thin PCB or want to make ultra thin PCB, welcome to contact us today, Huihe PCB will be your reliable ultra thin PCB manufacturer to make your design come true!Please click here to quote online now, For more information on ultra thin PCBs, please contact us.

Ultra Thin PCB Technology Background

Ultra thin PCB is a very special PCB board in the printed circuit board, the market has multi-layer circuit board, metal base PCB board, thick copper PCB board, FPC circuit board, high frequency board, high speed board, etc. But ultra thin PCB is suitable for a wide range of high-tech industries such as: telecommunications, power supply, computer, industrial control, digital products, scientific and educational instruments, medical instruments, automotive, aerospace defense, etc.

At present, the existing ultra thin PCB board has many problems due to its internal environment. Because the external structure of ultra thin PCB board cannot be properly placed in a place with dry air when it is in use, water mist accumulates on the surface of the PCB board. Due to the long time, water beads are formed, causing damage to electronic components. As a result, the service life of the circuit board is compromised, and the PCB board is damaged due to external factors, and the damaged components cannot be effectively replaced individually. At the same time, the entire circuit board needs to be replaced, and the intact components cannot be effectively protected, thus greatly reducing the usability and reliability of ultra thin PCB board components.

Ultra Thin PCB features

Nowadays, with the rapid growth of the consumer market of electronic products led by smart phones, tablet computers and other electronic devices, the trend of thinness and miniaturization of equipment is becoming more and more obvious. And PCB with reliable performance is now favored by major manufacturers and consumers, and PCB circuit board is also becoming an indispensable part of electronic equipment. The following to explain the characteristics of PCB circuit board.

1. High density, light weight and high flexibility.

2. Simple and consistent installation.

3. The design of electrical parameters is controllable.

It can be seen that high-end PCB circuit boards professionally produced not only have the characteristics of light weight and thin thickness, but also have certain advantages in flexibility and flexability. While realizing three-dimensional assembly, it can also show the consistency of PCB circuit board installation. In addition, PCB circuit boards have a short heat dissipation path, so that they have good heat dissipation performance. Undeniably PCB circuit board these characteristics are also the embodiment of its popular and favored key.

Why does thin PCB deform?

(1) The weight of a thin PCB board will cause the board to sag

(2) The depth of thin PCB in the V-Cut process and the connection strip will affect the deformation of the board

(3) The weight of PCB pressing process will affect the deformation of the board

What are the difficulties of Ultra Thin PCB manufacturing?

1. Thickness control: The thickness of Ultra Thin PCBS is usually less than 0.4mm, which requires careful control of the thickness of copper foil, dielectric board and outer covering board.

2. assembly process: Thin plate is easy to bend or deformation, easy to be damaged in the assembly process. Therefore, special measures need to be taken during the assembly process, such as the use of appropriate fixtures or supports to hold the PCB in place. 

3. Material selection: The materials used in Ultra Thin PCBS must be rigorously screened and tested, as any quality problem can lead to PCB failure.

4. Line width and pitch: Because Ultra Thin PCBS usually require many connections and lines to fit into a small space, the line width and pitch must be very small, requiring the manufacturer to maintain accuracy in the manufacturing process of the PCB.

5. Process control: The manufacture of Ultra Thin PCB requires special process control methods, such as the use of multi-layer PCB, and the thickness and precision between each layer of PCB need to be controlled well.

Lithography process: When making Ultra Thin PCBS, it is often necessary to use a high precision lithography process to ensure accuracy and quality requirements.