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Taconic RF-35HTC

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Taconic RF-35HTC

In the ever-evolving landscape of electronics, the demand for high-performance printed circuit boards (PCBs) capable of handling increasingly higher frequencies continues to rise. To meet these demands, Taconic, a leading manufacturer of advanced PCB materials, introduces the RF-35HTC, a cutting-edge substrate designed specifically for high-frequency applications.

The RF-35HTC material is engineered to provide exceptional electrical performance, optimal signal integrity, and reliable thermal management, making it an ideal choice for a wide range of high-frequency PCB designs. This introductory article delves into the key features and advantages of Taconic RF-35HTC, highlighting its potential to revolutionize the field of high-frequency PCB production.

What Is Taconic RF-35HTC?

Taconic RF-35HTC is a type of high-performance printed circuit board (PCB) material. Taconic, a company specializing in advanced engineered materials, developed the RF-35HTC material specifically for high-frequency applications in the field of RF/microwave circuit design.

RF-35HTC stands for “Radio Frequency – 35 High Thermal Conductivity.” The material is designed to have excellent thermal management properties, allowing it to dissipate heat efficiently. This is particularly important for high-power applications where heat generation can be a concern.

RF-35HTC is known for its low loss tangent, which means it exhibits minimal energy loss and high signal integrity at high frequencies. This makes it suitable for use in applications such as telecommunications, aerospace, defense, automotive radar systems, and other RF/microwave designs where signal quality and reliability are crucial.

Overall, Taconic RF-35HTC is a specialized PCB material that offers high thermal conductivity, low loss tangent, and excellent performance at high frequencies, making it well-suited for demanding RF/microwave applications.

Material Composition Structure of Taconic RF-35HTC

The material composition and structure of Taconic RF-35HTC are proprietary information held by Taconic, the manufacturer. However, we can provide some general information regarding high-performance PCB materials. Typically, high-performance PCB materials like Taconic RF-35HTC consist of multiple layers:

Substrate: The substrate layer forms the core of the PCB material. It provides mechanical support and electrical insulation for the circuitry. The exact composition of the substrate can vary but often includes a combination of resin materials, such as epoxy or polyimide, reinforced with fiberglass or other reinforcing materials.

Copper Foil: Copper foil is typically laminated onto both sides of the substrate layer. It provides the conductive pathways for electrical signals on the PCB. The copper foil is usually etched to create the desired circuit pattern.

Prepreg: Prepreg refers to layers of resin impregnated with reinforcing materials such as fiberglass. Prepreg layers are used to bond the inner layers of the PCB together during the lamination process.

Soldermask: A soldermask layer is applied on top of the copper traces to protect them from oxidation, contamination, and short circuits during soldering. It is usually made of a polymer resin material.

Silkscreen: The silkscreen layer is a printed layer that provides component labels, reference designators, and other markings on the PCB. It is typically made of a white ink-like material.

It’s important to note that the specific composition, additives, and manufacturing processes used in high-performance PCB materials can vary based on the manufacturer and the intended application.

Performance Characteristics and Benefits of Taconic RF-35HTC

Taconic RF-35HTC is a high-frequency laminate material designed for printed circuit board (PCB) applications. While I don’t have specific information on RF-35HTC as of my last update in September 2021, I can speak generally about the characteristics and benefits of Taconic’s RF-35 series and high-temperature copper-clad laminates.

Performance Characteristics:

High Thermal Stability: High-temperature laminates like RF-35HTC are designed to withstand high temperatures without deforming or degrading, making them ideal for demanding applications such as automotive or aerospace electronics.

Excellent RF Performance: Taconic’s RF materials are specifically designed for excellent radio frequency (RF) performance. This typically includes low dielectric constant (Dk) and low loss tangent, which result in minimal signal loss at high frequencies.

Low Moisture Absorption: These materials often have low moisture absorption rates, which helps maintain their electrical properties in humid environments.

Good Mechanical Strength: High-temperature laminates usually have good mechanical strength, allowing them to withstand physical stress in challenging environments.


Reliability: The high thermal stability and excellent RF performance make these materials reliable for use in high-frequency, high-temperature applications.

Versatility: Their good mechanical strength and low moisture absorption make them versatile for use in a variety of harsh environments.

Efficiency: The low dielectric constant and low loss tangent allow for efficient signal transmission at high frequencies, which can be critical for applications such as telecommunications and radar.

Durability: These materials can withstand physical stress and harsh environments, which can lead to longer-lasting PCBs and lower replacement costs.

Please note that these are general characteristics and benefits associated with high-temperature, copper-clad laminates, and the RF-35 series from Taconic. For precise information on RF-35HTC, you should refer to the manufacturer’s product datasheet or contact the manufacturer directly.

How to Test Thermal Stability of Taconic RF-35HTC Laminates?

To test the high thermal stability of Taconic RF-35HTC laminates, several methods can be employed. Here are some common techniques used in testing the thermal properties of PCB materials:

Thermal Conductivity Measurement:

Thermal conductivity is an important property for assessing the ability of a material to conduct heat. Various methods, such as the laser flash method or the guarded heat flow meter method, can be used to measure the thermal conductivity of Taconic RF-35HTC laminates.

Thermal Expansion Coefficient Measurement:

The coefficient of thermal expansion (CTE) indicates how a material’s dimensions change with temperature variations. CTE testing involves subjecting the laminate to a range of temperatures and measuring the resulting dimensional changes. Techniques like dilatometry or thermomechanical analysis (TMA) can be employed to determine the CTE of Taconic RF-35HTC laminates.

Thermal Aging:

Thermal aging involves subjecting the laminate to elevated temperatures for an extended period to simulate long-term exposure to heat. This accelerated aging process helps evaluate the material’s stability and performance under high-temperature conditions. After the aging process, various tests such as mechanical strength testing, electrical conductivity testing, and dimensional stability measurements can be conducted to assess any degradation or changes in the material’s properties.

Differential Scanning Calorimetry (DSC):

DSC is a technique that measures the heat flow into or out of a sample as it undergoes temperature changes. It can be utilized to analyze the phase transitions, glass transition temperature (Tg), and thermal stability of Taconic RF-35HTC laminates.

Thermo Mechanical Analysis (TMA):

TMA measures the dimensional changes of a material as a function of temperature, providing information about the expansion or contraction behavior. TMA can help evaluate the thermal stability and mechanical properties of Taconic RF-35HTC laminates under different temperature conditions.

It’s important to note that specific testing methods and procedures may vary depending on the testing standards, equipment, and resources available. For accurate and reliable results, it is recommended to consult the manufacturer’s guidelines or reach out to Taconic for their recommended testing procedures for assessing the high thermal stability of RF-35HTC laminates.

Key Considerations When Selecting Taconic RF-35THC Laminates for PCB Design

When selecting Taconic RF-35HTC laminates for PCB design, several factors should be taken into consideration to ensure optimal performance and suitability for the intended application. Here are some key factors to consider:

Application Requirements: Understand the specific requirements of your application, including frequency range, power levels, and thermal considerations. Taconic RF-35HTC is designed for high-power and high-heat applications, so it is important to assess whether the material’s capabilities align with your project’s needs.

Electrical Performance: Evaluate the electrical properties of Taconic RF-35HTC, such as dielectric constant (Dk), loss tangent (Df), and impedance control. These properties affect the signal integrity and transmission characteristics of the PCB. Ensure that the electrical performance of the material meets your design specifications.

Thermal Management: Consider the thermal conductivity and thermal stability of Taconic RF-35HTC. Assess whether the material can efficiently dissipate heat generated by high-power components and thermal hotspots on the PCB. This is crucial to prevent overheating and ensure the reliability of the system.

Mechanical Strength and Durability: Evaluate the mechanical properties of the laminate, including tensile strength, flexural strength, and impact resistance. Consider the requirements of the PCB assembly process, any expected mechanical stresses, and the overall durability needed for your application.

Size and Thickness: Determine the required thickness and size of the PCB. Taconic RF-35HTC is known for its suitability in ultra-thin PCBs, making it advantageous for space-constrained designs. Ensure that the material can be manufactured in the desired thickness and size for your project.

Manufacturing Compatibility: Confirm that Taconic RF-35HTC laminates are compatible with your chosen fabrication processes, such as etching, drilling, and soldering. Consider the material’s compatibility with standard PCB manufacturing techniques and any specific requirements or limitations.

Cost Considerations: Evaluate the cost-effectiveness of Taconic RF-35HTC laminates in relation to your project’s budget and performance requirements. Consider the overall value provided by the material in terms of its electrical and thermal properties, reliability, and long-term performance.

Additionally, it is recommended to consult with Taconic or their technical support team for specific guidance and recommendations based on your application’s requirements. They can provide valuable insights and assistance in selecting the appropriate Taconic RF-35HTC laminate for your PCB design.

What Do You Considerations when Choose Taconic RF-35THC for PCB Board Production?

When selecting Taconic RF-35THC for PCB (Printed Circuit Board) production, there are several key factors to consider. Here are some important points to pay attention to:

Material Specifications: Review the material specifications provided by Taconic for RF-35THC. Pay attention to the dielectric constant, loss tangent, thermal conductivity, and other relevant properties. Ensure that the material properties align with your specific application requirements.

Frequency Range: Consider the frequency range at which your PCB will operate. RF-35THC is designed for high-frequency applications, so ensure that it meets the desired frequency requirements of your circuit design.

Signal Integrity: Evaluate the signal integrity characteristics of RF-35THC. Look for features such as low loss, low dispersion, and consistent impedance control. These factors are crucial for maintaining signal quality and minimizing signal degradation.

Thermal Management: PCBs can generate heat, especially in high-power or high-frequency applications. Consider the thermal conductivity and thermal stability of RF-35THC to ensure efficient heat dissipation and avoid excessive temperature rise.

Manufacturing Process Compatibility: Verify that your chosen PCB manufacturer has experience and capability in working with Taconic RF-35THC material. Some PCB materials may require specialized manufacturing processes or equipment, so it’s important to ensure compatibility to achieve desired results.

Cost Considerations: Evaluate the cost of Taconic RF-35THC material and compare it with alternative options. Consider the overall budget for your project while keeping in mind the specific performance requirements of your PCB.

Reliability and Quality: Assess the reliability and quality of the Taconic RF-35THC material. Look for certifications or industry standards compliance to ensure that the material meets the necessary quality criteria.

Design Support: Check if Taconic or other resources provide design guidelines or support for RF-35THC. Proper design techniques and considerations can help optimize the performance of your PCB and reduce potential issues during production.

Importnat of Taconic RF-35HTC in PCB Manufacturinf Process

The Taconic RF-35HTC material plays a crucial role in the PCB manufacturing process, offering several important benefits. Here are some key points highlighting the significance of Taconic RF-35HTC in PCB manufacturing:

High Power and High Heat Applications:

Taconic RF-35HTC is specifically designed for high-power applications that generate significant heat. Its premium properties allow it to handle elevated power levels and efficiently dissipate heat, ensuring the reliability and performance of the PCB in demanding environments.

Reliable System Performance:

By using Taconic RF-35HTC in the PCB manufacturing process, manufacturers can achieve 100% reliability in the assembled system. The material’s characteristics, such as low loss tangent and high signal integrity, help maintain the quality and consistency of signals, resulting in improved system performance.

Versatile Compatibility:

Taconic RF-35HTC is compatible with various system requirements, making it suitable for a wide range of applications. It can seamlessly accommodate components that require USB, Ethernet, analog, or digital signals, providing the necessary functionality and connectivity.

Enhanced Signal Integrity:

The through-hole construction of Taconic RF-35HTC contributes to improved signal integrity, particularly in ultra-thin PCBs. This feature is vital in maintaining the integrity of high-frequency signals and minimizing signal loss, ensuring reliable communication and performance.

Miniaturization and Space Constraints:

With the growing trend of miniaturization in electronic devices, space constraints pose a challenge for PCB designers. Taconic RF-35HTC addresses this issue by offering excellent thermal management and signal integrity properties in ultra-thin printed circuit boards. This makes it an ideal choice for compact devices such as mobile phones and small laptops.

Overall, Taconic RF-35HTC is essential in the PCB manufacturing process due to its ability to handle high power and heat, ensure reliable system performance, offer versatile compatibility, enhance signal integrity, and address space constraints in miniaturized devices. Integrating this material into the manufacturing process can lead to improved functionality, reliability, and overall performance of PCB-based systems.


The Taconic RF-35HTC laminate is a premium choice for high-power and high-heat applications, offering distinct advantages over conventional boards. While it may not exhibit the same level of resistance or heat dissipation as standard boards, it remains an optimal solution for achieving 100% reliability in systems with all components attached to the PCB.

In addtion, an inherent advantage of the RF-35HTC laminate lies in its through-hole construction, which significantly enhances signal integrity in ultra-thin printed circuit boards. This makes it an ideal choice for devices such as mobile phones and small laptop computers, where space constraints necessitate the use of exceptionally thin PCBs.

In summary, the Taconic RF-35HTC laminate stands as a superior option for high-power and high-heat applications. Although its resistance and heat dissipation differ from conventional boards, it guarantees unparalleled reliability when incorporating all system components. Its versatility allows for seamless integration into systems relying on USB, Ethernet, analog, or digital signals, while its through-hole construction ensures optimal signal integrity in ultra-thin PCBs found in compact electronic devices like mobile phones and small laptops.

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