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Jarnistech > ITEQ PCB > ITEQ IT-958G
ITEQ IT-958G PCB Board

In the world of printed circuit board (PCB) design, selecting the right material is crucial for achieving optimal performance and reliability. One such material that stands out is ITEQ IT-958G. Renowned for its exceptional properties, IT-958G offers a winning combination of high Tg resin technology, excellent electrical performance, and thermal stability. This article delves into the key features and advantages of ITEQ IT-958G PCB materials, shedding light on why it is a preferred choice for demanding applications.

Background on ITEQ IT-958G PCB Materials

ITEQ IT-958G is a high-performance epoxy-based PCB (printed circuit board) material designed for high-frequency and high-speed applications. It offers excellent electrical and mechanical properties, making it suitable for use in advanced electronic devices and systems.

The IT-958G material is known for its low dielectric constant and low dissipation factor, which allows for better signal integrity and reduced signal loss in high-frequency circuits. This makes it ideal for applications such as telecommunications, data communication, and high-speed digital devices.

ITEQ IT-958G also offers good thermal stability and reliability, making it suitable for use in demanding operating conditions. It has a high glass transition temperature and good thermal conductivity, which helps in dissipating heat and maintaining the performance of the PCB in high-temperature environments.

The material is also compatible with lead-free assembly processes, making it environmentally friendly and compliant with industry regulations and standards.

Overall, ITEQ IT-958G is a high-performance PCB material that offers excellent electrical, mechanical, and thermal properties, making it suitable for use in high-frequency and high-speed applications.

Features of ITEQ IT-958G

The ITEQ IT-958G PCB material offers several notable features that make it suitable for various applications. These features include:

1. Advanced High Tg Resin Technology:

ITEQ IT-958G utilizes advanced high glass transition temperature (Tg) resin technology. This ensures the material can withstand higher operating temperatures, making it suitable for applications that require elevated temperature performance.

2. Excellent Electrical Performance:

ITEQ IT-958G exhibits excellent electrical performance characteristics. It is designed to provide low signal loss and low insertion loss, making it ideal for high-frequency applications.

3. Lower Dk (<3.8 @ 10GHz) and Low Df (<0.007 @ 10GHz):

ITEQ IT-958G offers a low dielectric constant (Dk) of less than 3.8 at 10GHz. This low Dk helps in minimizing signal distortion and maintaining signal integrity. Additionally, it has a low dissipation factor (Df) of less than 0.007 at 10GHz, indicating minimal energy loss during signal transmission.

4. Stable Dk/Df with Different Environments:

ITEQ IT-958G demonstrates stable Dk/Df characteristics even when exposed to different environmental conditions. This stability ensures consistent electrical performance of the PCB material, regardless of temperature and humidity variations.

These features make ITEQ IT-958G a reliable choice for PCB designs that require high-temperature resistance, excellent electrical performance, and stable signal integrity.

Properties of ITEQ IT-958G PCB Materials

ITEQ IT-958G PCB materials have the following properties:

1. Low dielectric constant: IT-958G has a low dielectric constant, which helps in reducing signal loss and maintaining signal integrity in high-frequency circuits.

2. Low dissipation factor: The material exhibits a low dissipation factor, contributing to the efficient transmission of high-frequency signals and reducing energy loss.

3. Good thermal stability: IT-958G offers good thermal stability, allowing it to perform reliably in demanding operating conditions, and high-temperature environments.

4. High glass transition temperature: The material has a high glass transition temperature, providing it with the ability to withstand elevated temperatures without compromising its performance.

5. Excellent thermal conductivity: IT-958G demonstrates good thermal conductivity, aiding in the dissipation of heat and contributing to the overall thermal management of the PCB.

6.Lead-free assembly compatibility: The material is compatible with lead-free assembly processes, making it environmentally friendly and compliant with industry regulations.

Manufacturing Process of ITEQ IT-958G

Here are the general steps involved in the manufacturing process of ITEQ IT-958G PCB materials:

1. Resin Mixing: The process starts with the mixing of resin, which includes the base resin and various additives. The resin mixture is prepared according to the specific formulation requirements of the PCB material.

2. Prepreg Production: Prepreg is made by impregnating fiberglass reinforcement material with the resin mixture. The fiberglass sheets are coated with the resin and stacked together to form a layered structure. The prepreg is then subjected to heat and pressure to partially cure the resin.

3. Core Production: Core material is produced by stacking multiple layers of prepreg and copper foil. The copper foil provides the conductive layers for the PCB. The stack is then pressed under heat and pressure to bond the layers together and fully cure the resin.

4. Lamination: The cores are stacked together with additional prepreg layers to create the desired layer stackup configuration for the PCB. The stack is then placed in a lamination press, where heat and pressure are applied to bond the layers together and form a solid panel.

5. Drilling: Holes for component mounting and interconnections are drilled into the laminated panel. The holes are typically plated with a conductive material to establish electrical connections between the different layers of the PCB.

6. Copper Plating: The panel undergoes a copper plating process, where a thin layer of copper is deposited onto the surfaces and inside the drilled holes. This copper plating forms the conductive traces and vias of the PCB.

7. Etching: A photoresist is applied to the copper surfaces, and a pattern is created using photolithography techniques. The exposed copper is then etched away, leaving behind the desired circuit pattern.

8. Surface Finishing: The PCB undergoes surface finishing processes to protect the copper traces and provide solderability. Common surface finishes include HASL (Hot Air Solder Leveling), ENIG (Electroless Nickel Immersion Gold), OSP (Organic Solderability Preservative), and immersion tin or silver.

9. Testing and Inspection: The finished PCBs are subjected to various tests and inspections to ensure their quality and functionality. This may include electrical testing, visual inspection, and other quality control measures.

It’s important to note that the specific manufacturing process of ITEQ IT-958G may involve additional proprietary steps or variations to meet the material’s unique characteristics.

Applications and Benefits of ITEQ IT-958G PCB Materials

The ITEQ IT-958G PCB material offers numerous benefits and is well-suited for a variety of applications due to its exceptional properties. Some of the applications and benefits of ITEQ IT-958G PCB materials include:


1. High-frequency circuits: IT-958G is ideal for high-frequency applications such as RF/microwave circuits, radar systems, and high-speed digital communication systems.

2. Telecommunications equipment: The material is suitable for use in telecommunications infrastructure, including base stations, antennas, and other high-frequency components.

3. Data communication devices: IT-958G is well-suited for high-speed data communication devices, such as network switches, routers, and data transmission equipment.

4. Test and measurement equipment: It is used in high-frequency test and measurement instruments due to its signal integrity and low loss characteristics.

5. Aerospace and defense electronics: The material is suitable for high-performance electronic systems used in aerospace and defense applications, where high reliability and performance are critical.


1. Signal integrity: IT-958G offers low dielectric constant and low dissipation factor, ensuring excellent signal integrity and reduced signal loss in high-frequency circuits.

2. Thermal performance: The material provides good thermal stability and thermal conductivity, enabling efficient heat dissipation and thermal management in high-power and high-temperature environments.

3. Reliability: IT-958G offers high glass transition temperature, ensuring reliability and performance in demanding operating conditions, making it suitable for critical applications.

4. Environmental compliance: The material is compatible with lead-free assembly processes, meeting environmental regulations and industry standards for sustainable manufacturing practices.

5.High-speed performance: ITEQ IT-958G is designed to support high-speed digital and RF/microwave signals, making it suitable for advanced electronic devices and systems requiring high data rates and fast signal processing.

Design Considerations About ITEQ IT-958G

When designing a PCB using ITEQ IT-958G PCB material, there are several important considerations to keep in mind. These considerations will help ensure optimal performance and reliability of the PCB. Here are some key design considerations for ITEQ IT-958G:

1. Stackup Design:

Carefully design the stackup configuration of the PCB. Consider factors such as signal integrity, controlled impedance requirements, power and ground plane distribution, and thermal management. The stackup should be optimized to minimize signal distortion and interference.

2. Thermal Management:

ITEQ IT-958G has advanced high Tg resin technology, which provides good thermal stability. However, for high-power applications or designs with components that generate significant heat, proper thermal management techniques should be employed. This may include adding thermal vias, heat sinks, or utilizing copper planes for heat dissipation.

3. Controlled Impedance:

ITEQ IT-958G offers excellent electrical performance, making it suitable for high-frequency applications. Ensure that the controlled impedance requirements of critical signal traces are met by carefully designing the trace widths, spacing, and layer stackup. Use impedance calculators or simulation tools to verify and optimize the controlled impedance values.

4. Signal Integrity:

Pay attention to signal integrity considerations such as minimizing signal reflections, crosstalk, and electromagnetic interference (EMI). Proper ground and power plane distribution, controlled impedance routing, and proper decoupling capacitor placement can help maintain signal integrity.

5. Design for Manufacturability:

Consider the manufacturability aspects of the PCB design. Ensure that the design meets the capabilities and limitations of the PCB manufacturing process. Consult with the PCB manufacturer to understand their specific requirements and guidelines for working with ITEQ IT-958G material.

6. Environmental Considerations:

While ITEQ IT-958G offers stable Dk/Df characteristics in different environments, it’s still important to consider the operating conditions and potential environmental factors the PCB may encounter. Evaluate the impact of temperature, humidity, and other environmental conditions on the performance of the PCB design.

7. Compliance and Standards:

Ensure that the PCB design complies with relevant industry standards and regulations. This may include electrical safety, electromagnetic compatibility (EMC), and other specific requirements based on the application or industry.

By considering these design considerations, you can maximize the performance and reliability of your PCB design using ITEQ IT-958G material.


ITEQ IT-958G PCB materials have emerged as a game-changer in the electronics industry, thanks to their outstanding performance and reliability. With its high Tg resin technology, excellent electrical properties, and thermal stability, IT-958G empowers designers to push the boundaries of their PCB designs. Whether it’s high-frequency applications, stringent controlled impedance requirements, or thermal management challenges, IT-958G delivers on all fronts.

By choosing ITEQ IT-958G, engineers can unlock the full potential of their PCB designs, ensuring superior functionality and longevity. Embrace the power of ITEQ IT-958G and witness a new era of performance and reliability in your PCB projects.

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