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BT Resin PCB Manufacturer. The microtrace & spacing Mini LED BT PCB and BT BGA package substrate manufacturing. Advanced production process and fast shipping time.

What is BT Resin PCB?

Understanding BT Resin PCB: Composition, Benefits, and Applications:

Printed Circuit Boards (PCBs) are integral components in modern electronics, serving as the foundation for the interconnection of various electronic components. Among the various types of PCB materials available, BT Resin PCB stands out for its unique properties and widespread applications.

BT Resin, short for Bismaleimide Triazine, is a type of resin material used in PCB manufacturing. It is renowned for its exceptional thermal and mechanical properties, making it ideal for demanding electronic applications where reliability and performance are paramount.

Composition: BT Resin PCBs are composed of several layers of materials, with the BT Resin serving as the core component. This resin is reinforced with glass fibers to enhance its mechanical strength and stability. Additionally, copper traces are etched onto the surface of the PCB to create electrical pathways, allowing for the flow of current between components.


  1. High Temperature Resistance: One of the primary advantages of BT Resin PCBs is their exceptional thermal stability. They can withstand high temperatures without degrading, making them suitable for applications that involve elevated operating temperatures, such as automotive electronics and aerospace systems.
  2. Excellent Mechanical Strength: BT Resin PCBs exhibit superior mechanical properties, including high tensile strength and resistance to mechanical stress. This ensures reliable performance even in harsh environments where vibrations and impacts are prevalent.
  3. Low Dielectric Constant and Loss: The dielectric properties of BT Resin PCBs contribute to efficient signal transmission and reduced signal loss, leading to enhanced electrical performance and signal integrity.
  4. Compatibility with Lead-Free Soldering: With the transition towards lead-free soldering processes, BT Resin PCBs offer excellent compatibility, ensuring robust solder joints and reliable connections.


  1. Aerospace and Defense: BT Resin PCBs are widely used in aerospace and defense applications due to their ability to withstand extreme temperatures, vibrations, and mechanical stresses. They are employed in avionics systems, radar equipment, missile guidance systems, and other critical electronic components.
  2. Automotive Electronics: In the automotive industry, BT Resin PCBs are utilized in engine control units, transmission systems, electronic stability control systems, and other automotive electronics. Their high temperature resistance makes them suitable for under-the-hood applications.
  3. Telecommunications: BT Resin PCBs play a vital role in telecommunications infrastructure, including base stations, routers, switches, and optical networking equipment. Their reliability and thermal performance ensure uninterrupted communication networks.
  4. Industrial Electronics: In industrial settings, BT Resin PCBs are utilized in equipment such as power supplies, motor drives, and control systems. Their robust construction and thermal stability make them ideal for demanding industrial environments.

In conclusion, BT Resin PCBs offer a compelling combination of thermal stability, mechanical strength, and electrical performance, making them indispensable in a wide range of electronic applications. As technology continues to advance, the demand for reliable and high-performance PCB materials like BT Resin will only continue to grow.

How to manufacturing BT Resin PCB?

A Step-by-Step Guide to Manufacturing BT Resin PCBs:

Manufacturing BT Resin Printed Circuit Boards (PCBs) involves a series of precise processes to ensure the final product meets the stringent requirements of modern electronic applications. Here’s a comprehensive guide outlining the steps involved in manufacturing BT Resin PCBs:

  1. Material Selection: The manufacturing process begins with the selection of high-quality BT Resin material, which typically comes in the form of prepreg sheets. These sheets are impregnated with uncured BT Resin and are reinforced with glass fibers to provide mechanical strength.
  2. Layer Stacking: Multiple layers of prepreg sheets are stacked together, alternating with copper foil layers. The arrangement depends on the desired number of copper layers in the final PCB design. The stack is then subjected to heat and pressure to bond the layers together.
  3. Drilling: Holes are drilled through the layered stack using precision drilling machines. These holes, also known as vias, will later facilitate the electrical connections between different layers of the PCB.
  4. Copper Plating: After drilling, the interior walls of the vias are plated with a thin layer of copper using an electroplating process. This copper plating enhances conductivity and ensures proper electrical connections between layers.
  5. Circuit Patterning: A layer of photoresist is applied to the surface of the PCB stack. A photomask, containing the desired circuit pattern, is then aligned and exposed to UV light. The exposed areas of the photoresist harden, while the unexposed areas remain soluble. Subsequent development and etching processes remove the unexposed photoresist and unwanted copper, leaving behind the desired circuit pattern.
  6. BT Resin Lamination: The circuit-patterned PCB stack undergoes lamination in a heated press. Heat and pressure are applied to cure the BT Resin, bonding the layers together permanently. This lamination process also helps to remove any remaining solvent and air bubbles from the PCB stack, ensuring uniformity and reliability.
  7. Surface Finishing: The final step involves surface finishing to protect the exposed copper traces and provide solderability. Common surface finish options for BT Resin PCBs include hot air solder leveling (HASL), electroless nickel immersion gold (ENIG), and immersion silver.
  8. Quality Control and Testing: Throughout the manufacturing process, rigorous quality control measures are implemented to ensure the PCBs meet industry standards and customer specifications. Testing may include checks for dimensional accuracy, electrical continuity, insulation resistance, and solderability.

By following these precise steps, manufacturers can produce high-quality BT Resin PCBs that offer exceptional thermal stability, mechanical strength, and electrical performance, meeting the demanding requirements of various electronic applications.

BT resin PCB
BT resin PCB

How Much Does BT PCB Cost?

Understanding the Cost Factors of BT Resin PCBs:

BT Resin Printed Circuit Boards (PCBs) are renowned for their exceptional thermal stability and mechanical strength, making them ideal for demanding electronic applications. However, the cost of manufacturing BT Resin PCBs can vary significantly depending on several factors. Let’s delve into the key determinants that influence the cost of BT Resin PCBs:

  1. Material Cost: The primary component of BT Resin PCBs is the BT Resin material itself. The cost of BT Resin can vary based on factors such as quality, brand, and availability. Additionally, the cost of copper foils, prepreg sheets, and other materials used in the PCB manufacturing process also contributes to the overall material cost.
  2. Layer Count and Complexity: The number of layers in a BT Resin PCB greatly impacts its manufacturing cost. Higher layer counts require more intricate fabrication processes and increased material usage, leading to higher costs. Furthermore, complex PCB designs with densely packed components, fine traces, and small vias may require advanced manufacturing techniques, driving up the cost further.
  3. Board Size and Thickness: The size and thickness of the PCB also influence its cost. Larger boards require more material and may necessitate specialized handling and processing equipment, resulting in higher manufacturing costs. Similarly, thicker PCBs may require additional material and longer processing times, adding to the overall cost.
  4. Surface Finish and Special Features: The choice of surface finish and any additional features or special requirements specified by the customer can impact the cost of BT Resin PCBs. Surface finishes such as gold plating or immersion silver incur additional expenses compared to standard finishes like HASL. Moreover, features such as impedance control, blind vias, and buried vias may require specialized fabrication processes, contributing to higher costs.
  5. Manufacturing Volume: Economies of scale play a significant role in determining the cost of BT Resin PCBs. Larger production volumes typically result in lower per-unit manufacturing costs due to optimized production processes, bulk material procurement, and reduced setup times. Conversely, smaller production runs may incur higher costs per unit.
  6. Lead Time and Turnaround Time: Shorter lead times and faster turnaround times often come at a premium. Manufacturers may charge expedite fees for rush orders or prioritize production schedules for customers willing to pay for faster delivery, influencing the overall cost of BT Resin PCBs.
  7. Quality and Certification Requirements: Meeting specific quality standards and obtaining certifications, such as ISO 9001 or IPC Class 3, can impact the cost of BT Resin PCBs. Manufacturers may invest in quality control measures, testing equipment, and compliance processes to ensure that PCBs meet the required standards, resulting in higher manufacturing costs.

In conclusion, the cost of BT Resin PCBs is influenced by a multitude of factors, including material costs, layer count, board size, surface finish, manufacturing volume, lead time, and quality requirements. Understanding these factors is essential for customers and manufacturers alike to make informed decisions regarding PCB procurement and production.

Any device that has electronic components, from computers and household electronics to automobiles and robots, has one or several built in computer chips. The device makers are constantly seeking to make their products more competitive by making them smaller and lighter while at the same time making them more sophisticated to offer higher performance. Y

Please send us your pcb gerber files. and the pcb Stackup info and the materials request. let’s have a quote.

BT resin PCB (Printed Circuit Board), as one of the substrate materials widely used in electronic equipment, is very popular for its excellent performance and reliability. This article will delve into key information such as the design, manufacturing process and cost of BT resin PCB, providing readers with a comprehensive and in-depth guide to help them better understand and apply this important electronic component.

What exactly is BT resin PCB?

BT resin PCB, that is, a printed circuit board using BT (phenyloxy epoxy resin) as the substrate material, is an important component widely used in electronic equipment. Compared with traditional FR-4 (fiberglass reinforced epoxy resin) materials, BT resin PCB has unique advantages in performance and application.

First, BT resin PCB has excellent thermal stability. In high-temperature environments, BT resin can effectively resist thermal stress and thermal expansion, maintaining the stability and reliability of circuit boards. This makes BT resin PCB particularly suitable for electronic equipment in high temperature and high frequency environments, such as communication equipment, automotive electronics and industrial control systems.

Secondly, BT resin PCB has excellent mechanical strength and wear resistance. BT resin material has good strength and hardness, which can effectively prevent circuit boards from being damaged by vibration, impact or other external factors. This makes BT resin PCB perform well in situations that require frequent movement or are subject to mechanical impact, such as military equipment and mobile communication equipment.

In addition, BT resin PCB has excellent electrical properties. The low dielectric constant and low dielectric loss of BT resin substrate enable it to have lower signal attenuation and distortion in high-frequency circuits, which is beneficial to maintaining stable signal transmission. This makes BT resin PCB popular in high-frequency applications such as radio frequency and microwave circuits.

Generally speaking, compared with other materials, BT resin PCB has higher thermal stability, mechanical strength and electrical properties, and is suitable for various harsh environments and application scenarios. Therefore, when choosing printed circuit board materials, BT resin PCB is often one of the first choices of many engineers and designers.

How to design BT resin PCB?

Designing a BT resin PCB is not just about simply arranging circuit components, but requires comprehensive consideration of multiple factors to ensure its performance and reliability. The following are the main factors to consider when designing a BT resin PCB as well as some special tips:

First of all, the rationality of the circuit layout needs to be considered when designing BT resin PCB. This includes determining the location and connection of components to minimize signal transmission paths and reduce signal interference and crosstalk. To achieve this, a modular design approach can be used to place functionally similar circuit elements in adjacent locations and connect them using optimal routing.

Secondly, considering the thermal properties of BT resin, special attention needs to be paid to heat dissipation and ventilation during design. In high-power circuit board design, it is crucial to properly design heat sinks and vents to improve heat dissipation efficiency. In addition, a layered design method can be used to add a heat dissipation layer inside the PCB to improve the heat dissipation effect.

In addition, its reliability and stability need to be considered when designing BT resin PCB. In order to ensure that the circuit board can work properly under various environmental conditions, it is necessary to select appropriate components and connections, and conduct sufficient electrical planning and simulation analysis. In addition, reasonable impedance matching and signal integrity design are also key to ensuring stable performance of the circuit board.

In the actual design process, some special techniques can also be used to improve the design efficiency and quality of BT resin PCB. For example, using electronic design automation (EDA) software for design and simulation analysis can greatly reduce design cycles and error rates. In addition, reasonable selection of component packaging and arrangement to reduce the size of the circuit board and improve wiring efficiency is also one of the important skills in designing BT resin PCB.

In general, designing BT resin PCB requires comprehensive consideration of multiple factors such as circuit layout, thermal performance, reliability, etc., and using appropriate techniques and tools to optimize the design process to ensure that the final circuit board can meet performance requirements and have good Stability and reliability.

What is the manufacturing process of BT resin PCB?

The manufacturing of BT resin PCB is a complex and delicate process, which usually includes the following key steps:

Material preparation: The first step in manufacturing BT resin PCB is to prepare the required materials, which mainly include BT resin substrate, metal foil (such as copper foil), etc. These materials need to undergo strict inspection and selection to ensure that their quality meets requirements.

Image processing: Next, by converting the designed circuit diagram into an image, the circuit layer is printed on the surface of the substrate. This step is usually accomplished by photolithography, which requires the use of photoresist and photolithography equipment to transfer the circuit pattern to the substrate.

Chemical etching: After the image processing is completed, chemical etching technology is used to remove unnecessary parts of the metal foil to expose the required circuit pattern. This step requires the use of chemical etchant, which is achieved by immersing the substrate in the etching solution and controlling the etching time and temperature.

Drilling and Plating: Next comes the drilling and plating steps. In this step, vias are drilled and metallized to enhance conductivity. Drilling is usually done using a CNC drill press, while plating deposits a layer of metal, such as copper, on the hole walls by soaking the substrate in a metal salt solution to create a conductive layer.

Final processing: The last step is final processing, which includes cutting, cleaning and inspection. During the cutting process, large substrates are cut into smaller pieces of the desired size. Cleaning is to remove contaminants and residues generated during the production process to ensure that the PCB surface is clean. Finally, through inspection, ensure that the PCB quality meets the requirements and does not have any defects.

Each step is crucial and requires precise operations and strict quality control to ensure that the quality of the final manufactured BT resin PCB is stable and reliable. Due to the particularity of BT resin PCB, special attention needs to be paid to its thermal stability and mechanical strength during the manufacturing process to meet the needs of different application scenarios.

How much does it cost to manufacture BT resin PCB?

Cost is a key consideration when manufacturing BT resin PCBs. Understanding the factors that affect cost and the cost advantages and disadvantages compared to other materials is critical for both manufacturers and customers. Let’s dive into these questions.

First of all, the cost of manufacturing BT resin PCB is affected by many factors. These include:

Board quality: The quality of BT resin PCB is directly related to the cost. High-quality boards typically cost more, but provide more consistent and reliable performance.

Design complexity: PCB design complexity affects manufacturing costs. Complex designs may require more layers and higher-precision machining processes, thereby increasing manufacturing costs.

Production process: Different production processes also have an impact on costs. For example, special surface treatment, gold plating process, etc. will increase manufacturing costs.

Quantity and size: The quantity ordered and the size of the PCB are also factors that affect the cost. Generally speaking, the cost of mass production will be relatively low, and smaller size PCBs may also cost less.

Compared with other materials, the cost of BT resin PCB is usually slightly higher. This is because BT resin itself has excellent properties and can provide more stable performance in high temperature and high frequency environments, so the price of the board is relatively high. In addition, the special processes and equipment required to manufacture BT resin PCBs may also increase costs.

However, compared with the cost, the performance and reliability provided by BT resin PCB usually outperforms. It can maintain stable performance in complex environments and has a longer service life, thereby ensuring the performance and reliability of electronic equipment. Therefore, despite the slightly higher cost, choosing BT resin PCB is still a wise choice in many application scenarios.

In summary, understanding the cost influencing factors of BT resin PCB and its advantages and disadvantages compared with other materials can help manufacturers and customers make informed decisions and achieve better results in the electronic device design and manufacturing process. .

What materials are used in BT resin PCB?

As a commonly used printed circuit board material, BT resin PCB is usually composed of a variety of materials to ensure its performance and reliability. The following will introduce the commonly used materials for BT resin PCB and their characteristics.

BT resin is the core material of BT resin PCB. It has good thermal stability and mechanical strength and is suitable for applications in high temperature and high frequency environments. Compared with traditional FR-4 substrates, BT resin substrates have higher glass transition temperature (Tg), lower dielectric loss and better heat resistance, making them ideal for high-performance electronic devices.

Metal foil is used to form the conductive layer of PCB, usually copper foil. Copper foil has excellent electrical conductivity and processability, can effectively conduct current, and provides good welding performance. In addition, copper foil also has good mechanical properties and can meet various needs of PCB during manufacturing and use.

Solder paste is used in the PCB surface mount (SMT) process to secure and connect electronic components. Generally, solder paste is composed of solder powder and flux. It has good fluidity and solderability and can form a stable soldering connection at high temperatures to ensure reliable connection between electronic components and PCB.

Solder resist ink is used as a covering layer on the PCB surface to protect the circuit from corrosion and short circuits from the external environment. Solder mask ink has good insulation properties and heat resistance, which can effectively prevent the circuit board from moisture, oxidation and corrosion, and extend its service life.

In addition to the BT resin substrate, the multi-layer structure of the PCB may also include insulating layer materials to isolate the conductive layers between different layers. Common insulation layer materials include FR-4, polyimide (PI), etc., which have good insulation properties and mechanical strength and can effectively protect circuits from external interference and damage.

To sum up, BT resin PCB is usually made of a variety of materials such as BT resin substrate, metal foil, solder paste, solder resist ink and insulation layer materials. These materials have their own characteristics, which not only ensure the performance and reliability of PCB, but also provide a solid foundation for the efficient operation of electronic equipment.

Who is manufacturing BT resin PCB?

The manufacturing of BT resin PCB involves many professional manufacturers, and our company is one of them. With many years of experience and advanced technical equipment, we are committed to providing customers with high-quality BT resin PCB products. The following are some of our company’s key strengths and capabilities in the field of BT resin PCB manufacturing:

Technical strength: We have a highly skilled and experienced R&D team that can continuously innovate and lead the industry trend. They are familiar with the design, manufacturing and application of BT resin PCB and can provide personalized solutions according to customer needs.

Advanced equipment: Our company has introduced a series of advanced PCB production equipment, including high-precision printing machines, chemical etching equipment, drilling machines, etc., to ensure the high efficiency and stable quality of the production process.

Quality management: We strictly implement the ISO quality management system, and strictly control and inspect every aspect from raw material procurement to production and manufacturing to ensure that the products meet customer requirements and standards.

Production capacity: We have a modern production base and large-scale production lines, with the ability to mass-produce BT resin PCBs, and can meet customers’ large-volume order needs.

Professional services: We focus on communication and cooperation with customers, adhere to the principle of “customer first, quality first”, and provide customers with a full range of professional services, including technical support, pre-sales consultation and after-sales services.

In short, as one of the leaders in the field of BT resin PCB manufacturing, our company will continue to be committed to improving product quality, expanding service scope, and working hand in hand with customers to develop and grow together.

What are the characteristics of good customer service?

For manufacturers of BT resin PCBs, providing excellent customer service is crucial. Excellent customer service not only improves customer satisfaction, but also enhances customer trust and loyalty to the manufacturer, thereby promoting the establishment of long-term relationships. So, what exactly are the keys to great customer service?

First, prompt response is the foundation of great customer service. Manufacturers should be able to respond promptly to customer inquiries and needs, whether via email, phone, or online chat. When customers have questions or need help, they hope to receive timely responses and solutions, so timely response is very important.

Second, expertise is at the heart of great customer service. Manufacturers need to have extensive technical knowledge and experience and be able to provide customers with professional advice and solutions. In the field of BT resin PCB manufacturing, customers may encounter various technical problems or challenges, so manufacturers should have sufficient professional knowledge to provide customers with accurate and comprehensive technical support.

In addition, customized solutions are an important part of excellent customer service. Different customers may have different needs and requirements, so manufacturers should be able to provide personalized customized services based on the customer’s specific situation. This includes custom PCB design and manufacturing solutions, as well as special processing or processing according to customer requirements.

Good communication is also key to great customer service. Manufacturers should maintain good communication with customers and provide timely feedback on production progress and problem resolution to customers. Throughout the order process, manufacturers should actively communicate with customers to ensure smooth information transfer between the two parties.

Finally, perfect after-sales support is an important guarantee for quality customer service. Once a customer has a problem after receiving the product, the manufacturer should be able to provide timely after-sales support to help the customer solve the problem and ensure customer satisfaction. This includes providing returns and exchanges, technical support, repairs and maintenance, etc.

All in all, excellent customer service for BT resin PCB manufacturers means prompt response, professional knowledge, customized solutions, good communication and comprehensive after-sales support. By providing these features, manufacturers can build good relationships with customers and jointly drive business development.


What are the main advantages of using BT resin for PCBs?

BT resin offers several advantages for PCBs, including excellent thermal stability, mechanical strength, and electrical performance. It is particularly well-suited for high-temperature and high-frequency applications, making it a preferred choice for many electronic devices.

Are BT resin PCBs more expensive compared to other materials?

Yes, BT resin PCBs tend to be slightly more expensive compared to traditional FR-4 PCBs. This is primarily due to the higher cost of BT resin material itself and the specialized manufacturing processes required to work with it. However, the performance benefits often justify the higher cost for applications where reliability and performance are critical.

Can BT resin PCBs withstand high temperatures?

Yes, one of the key advantages of BT resin PCBs is their ability to withstand high temperatures. BT resin has excellent thermal stability, allowing PCBs made from this material to operate reliably in environments with elevated temperatures. This makes BT resin PCBs ideal for applications such as automotive electronics, aerospace systems, and industrial equipment.

Are there any specific design considerations for BT resin PCBs?

When designing BT resin PCBs, it’s essential to consider their thermal characteristics carefully. Proper heat dissipation and ventilation are crucial to prevent overheating, especially in densely populated PCBs or those operating in high-power applications. Additionally, designers should pay attention to signal integrity and minimize signal interference to ensure optimal performance.

How do I choose the right manufacturer for BT resin PCBs?

When selecting a manufacturer for BT resin PCBs, consider factors such as their experience with the material, the quality of their production facilities, and their track record for delivering reliable products. Look for manufacturers with a proven history of producing high-quality BT resin PCBs and providing excellent customer service and support.

Can BT resin PCBs be used in flexible or rigid-flex applications?

Yes, BT resin can be used in both flexible and rigid-flex PCB designs. Its excellent thermal stability and mechanical strength make it suitable for flexible PCBs that need to bend or conform to specific shapes. However, proper design and manufacturing techniques are required to ensure the integrity and reliability of flexible and rigid-flex BT resin PCBs.



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