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TUC TU-933

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TUC TU-933+PCB Board

In the world of circuit board design, choosing the right materials is paramount to achieving optimal performance, reliability, and efficiency. TUC TU-933+ PCB materials have emerged as a go-to choice for discerning circuit board design engineers. With their exceptional electrical and thermal properties, compatibility with manufacturing processes, and adherence to industry standards, TUC TU-933+ materials empower engineers to push the boundaries of high-performance circuit board designs. This article explores the key features and advantages of TUC TU-933+ PCB materials, highlighting their capabilities from the perspective of circuit board design engineers.

Introduction of TUC TU-933+ PCB Laminate

ThunderClad 3+ (TUC TU-933+) is an advanced material specifically engineered to meet the demanding requirements of high-speed computing, telecommunications, and radio frequency applications that demand super low loss characteristics. With its exceptional electrical performance, TUC TU-933+ stands on par with PTFE-based and hydrocarbon-based materials known for their very low loss properties. However, what sets TUC TU-933+ apart is its ability to facilitate high layer count circuit board designs while maintaining excellent thermal reliability.

One of the notable strengths of TUC TU-933+ laminates is their outstanding resistance to moisture, ensuring consistent performance even in challenging environments. Additionally, these laminates exhibit improved coefficient of thermal expansion (CTE), making them highly compatible with high layer count designs that are prone to thermal stress. Furthermore, TUC TU-933+ demonstrates superior chemical resistance and thermal stability, ensuring long-term reliability in harsh conditions. It also possesses excellent resistance to conductive anodic filamentation (CAF), a common concern in high-speed circuit board applications. Moreover, TUC TU-933+ is fully compatible with modified FR-4 processes, offering versatility and ease of integration into existing manufacturing workflows.

Therefore, TUC TU-933+ stands as a superior choice for PCB design engineers seeking a high-performance material that combines low loss characteristics, excellent thermal reliability, moisture resistance, improved CTE, chemical resistance, thermal stability, CAF resistance, and compatibility with modified FR-4 processes.

Standard Availability of TU-933+ PCB Laminates Materials

TU-933+ PCB laminates materials are available in standard configurations, providing flexibility to meet various design and manufacturing requirements. The standard availability of TU-933+ PCB laminates includes:


TU-933+ laminates are offered in a range of thicknesses, from 0.002″ (0.05mm) to 0.062″ (1.58mm). This allows designers to choose the appropriate thickness for their specific application needs. The laminates are available in both sheet and panel forms, offering versatility in manufacturing processes.

Copper Foil Cladding:

TU-933+ laminates support copper foil cladding options ranging from 1/3 oz to 5 oz for built-up and double-sided boards. This range of copper foil weights enables designers to select the appropriate level of conductivity and heat dissipation for their circuitry.


TU-933+ laminates are available in both roll and panel forms for the prepreg material. This availability allows for flexibility in manufacturing processes and facilitates efficient handling and integration into PCB fabrication.

Glass Styles:

The laminates are compatible with various glass styles, including 1035, 1078, 2116, and other prepreg grades. These glass styles offer different properties such as thermal stability, mechanical strength, and electrical performance. Designers can request specific glass styles based on their application requirements.

By offering a range of thicknesses, copper foil cladding options, prepreg forms, and glass styles, TU-933+ PCB laminates provide designers and manufacturers with the necessary choices to tailor their PCB designs and manufacturing processes to meet the specific needs of their applications.

Performance Features of TUC TU-933+ PCB Materials

TUC TU-933+ PCB materials offer a range of performance features that make them highly desirable for various applications. These features include:

Excellent electrical and thermal properties: TUC TU-933+ exhibits exceptional electrical and thermal characteristics, making it suitable for high-performance applications.

Consistent Dielectric Constant (Dk) and Dissipation Factor (Df): With a dielectric constant of 3.16 at 10GHz and a dissipation factor of 0.0021 at 10GHz, TUC TU-933+ maintains stable and flat Dk/Df performance across varying frequencies and temperatures.

Compatibility with modified FR-4 processes: TUC TU-933+ is fully compatible with modified FR-4 processes, enabling seamless integration into existing manufacturing workflows.

Excellent moisture resistance and Lead-Free reflow process compatibility: The material exhibits outstanding resistance to moisture and is fully compatible with Lead-Free reflow processes, ensuring reliable performance in demanding environments.

Improved z-axis thermal expansion: TUC TU-933+ demonstrates improved thermal expansion in the z-axis, making it well-suited for applications that experience thermal stress.

Superior dimensional stability, thickness uniformity, and flatness: The material maintains excellent dimensional stability, thickness uniformity, and flatness, enabling precise and reliable circuit board manufacturing.

Anti-conductive anodic filamentation (CAF) capability: TUC TU-933+ possesses anti-CAF properties, providing resistance against conductive anodic filament formation and enhancing long-term reliability in high-speed circuit boards.

Excellent through-hole and soldering reliability: TUC TU-933+ ensures excellent reliability in through-hole connections and soldering processes, minimizing the risk of defects and ensuring robust performance.

Overall, TUC TU-933+ PCB materials offer a comprehensive set of performance features that combine excellent electrical and thermal properties, stability, moisture resistance, compatibility, and reliability, making them an ideal choice for demanding applications in various industries.

Industry Approvals of TUC TU-933+ PCB Substrates

TUC TU-933+ PCB substrates have obtained industry approvals and certifications that validate their quality and compliance with standards. These include:

IPC-4101E Specification Number: TUC TU-933+ complies with the IPC-4101E specification number /102, indicating its adherence to industry standards for PCB materials.

IPC-4101E/102 Validation Services QPL Certified: TUC TU-933+ has received certification from IPC-4101E/102 Validation Services Qualified Product List (QPL), further confirming its compliance and quality.

UL File Number: TUC TU-933+ holds UL File Number E189572, signifying that it has met the safety and performance requirements set by Underwriters Laboratories (UL).

ANSI Grade: TUC TU-933+ does not have an ANSI grade designation. This implies that it may not conform to specific ANSI standards.

Flammability Rating: TUC TU-933+ has achieved a flammability rating of 94V-0, indicating excellent fire resistance properties and compliance with safety standards.

Maximum Operating Temperature: TUC TU-933+ has a maximum operating temperature of 140°C, ensuring its suitability for applications that require high-temperature operation.

These industry approvals and certifications demonstrate that TUC TU-933+ PCB substrates have undergone rigorous testing and evaluation, meeting the necessary quality standards and safety requirements. Designers and manufacturers can have confidence in the reliability and performance of TUC TU-933+ for their PCB applications.

Applications of TUC TU-933+

TUC TU-933+ PCB materials find applications in various industries and technologies that demand high performance and reliability. Some of the key applications of TUC TU-933+ include:

Radio Frequency (RF):

TUC TU-933+ is well-suited for RF applications due to its excellent electrical properties and low loss characteristics. It can be used in RF circuitry for communication systems, wireless devices, radar systems, and satellite communications.

Backplane and High-Performance Computing:

TU-933+ is suitable for backplane applications in high-performance computing systems where high-speed data transmission and signal integrity are crucial. It provides the necessary electrical performance and thermal reliability for complex backplane designs.

Line Cards and Storage:

TUC TU-933+ can be used in line cards and storage systems where high-speed data transfer and low signal loss are essential. It enables reliable signal transmission and helps maintain data integrity in high-density circuitry.


TU-933+ is applicable in server systems where high-speed computing and data processing take place. It offers the required electrical performance, thermal stability, and reliability for efficient server operation.

Telecom and Base Stations:

TUC TU-933+ is suitable for telecommunications applications, including base stations and network infrastructure equipment. It enables high-speed data transmission, low signal loss, and dependable performance in demanding telecom environments.

Office Routers:

TU-933+ can be utilized in office routers to ensure reliable and efficient data routing. It enables high-speed signal transmission, low loss, and stable performance in networking equipment.

These are just a few examples of the applications where TUC TU-933+ PCB materials can be employed. Their excellent electrical properties, low loss characteristics, thermal reliability, and compatibility with various manufacturing processes make them versatile and well-suited for a wide range of high-performance electronic systems and devices.

TUC TU-933+ Vs High Quality PCB Materials

When comparing TUC TU-933+ PCB materials with other high-quality PCB materials, several factors should be considered:

1. Electrical Performance: TUC TU-933+ offers excellent electrical performance, including a low dielectric constant (Dk) of 3.16 at 10GHz and a low dissipation factor (Df) of 0.0021 at 10GHz. However, high-quality PCB materials may offer even lower Dk and Df values, resulting in better signal integrity and lower loss.

2. Thermal Reliability: TUC TU-933+ is designed to provide excellent thermal reliability, making it suitable for high layer count circuit board designs. Comparing it with other high-quality materials would require evaluating their respective thermal properties, such as thermal conductivity and coefficient of thermal expansion (CTE), to determine their suitability for specific thermal management requirements.

3. Moisture Resistance: TUC TU-933+ exhibits excellent moisture resistance, which is crucial for reliable performance in challenging environments. Comparing it with other high-quality materials would involve assessing their moisture resistance properties and how well they can withstand exposure to humidity and moisture.

4. Compatibility: TUC TU-933+ is compatible with modified FR-4 processes, allowing for seamless integration into existing manufacturing workflows. Comparing it with other high-quality materials would involve considering their compatibility with specific manufacturing processes, such as surface mount technology (SMT), through-hole technology (THT), and other assembly techniques.

5. Material Options: TUC TU-933+ offers a range of options in terms of thickness, copper foil cladding, prepreg forms, and glass styles. When comparing with other high-quality materials, it’s essential to assess the availability and suitability of various material options to meet specific design requirements.

6. Industry Approvals and Standards: TUC TU-933+ holds industry approvals, such as IPC-4101E/102 and UL File Number E189572. Comparing it with other high-quality materials would involve evaluating their compliance with industry standards and certifications to ensure reliability and performance.

Ultimately, the choice between TUC TU-933+ and other high-quality PCB materials would depend on the specific requirements of the application, including electrical performance, thermal management needs, moisture resistance, compatibility with manufacturing processes, and adherence to industry standards. Evaluating these factors will help determine the best material for a given design.


When it comes to designing circuit boards that deliver uncompromising performance, TUC TU-933+ PCB materials stand out as a reliable and versatile option. With excellent electrical properties, thermal reliability, moisture resistance, and compatibility with manufacturing processes, TUC TU-933+ materials enable engineers to create cutting-edge designs for applications ranging from radio frequency systems to high-performance computing, telecommunications, and more. By harnessing the power of TUC TU-933+ materials, circuit board design engineers can unlock new possibilities and take their designs to the next level of performance and reliability. Embrace the potential of TUC TU-933+ PCB materials and embark on a journey of innovation in circuit board design.

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