Opening Time:  Mon‑Fri  00:00‑23:59   Sat‑Sun 00:00‑23:59
Call now:  0086-0755-23034656

TUC TU-768 PCB Laminate

Jarnistech > Tuc PCB > TUC TU-768 PCB Laminate
TUC TU-768 PCB Laminate

In the process of PCB manufacturing, a wide range of materials are employed, and among them, PCB laminates assume a pivotal role as the fundamental building blocks for circuit board production. It is imperative, therefore, to conduct a meticulous assessment of the quality and performance of the desired laminate prior to reaching a final decision.

Within the realm of PCB fabrication, the TU 768 PCB material stands out as a well-regarded laminate choice. This material has garnered significant acclaim throughout the printed circuit board industry owing to its exceptional properties and performance.

This article aims to shed light specifically on the TU 768 PCB material, offering insights derived from a comprehensive analysis of the TU 768 PCB laminate. By delving into this information, we intend to provide readers with a comprehensive understanding of the remarkable attributes embodied by this material.

What Does the TU 768 PCB laminate Material Meaning?

PCB laminates are composite materials used as the substrate for printed circuit boards. They are typically composed of multiple layers, including a substrate core and copper foil layers. The substrate core provides mechanical support and insulation, while the copper foil layers serve as the conductive pathways for electrical signals.

The acronym “TU” in TU 768 PCB laminate stands for “Trade Union,” which is a classification used by some manufacturers to differentiate their products. The “768” in TU 768 represents a specific variant or version of the TU PCB laminate material.

It’s important to note that the specific meaning or significance behind the “TU” and “768” designations may vary depending on the manufacturer or supplier. Different companies may use different naming conventions for their PCB laminate materials. Therefore, it is recommended to consult the manufacturer’s documentation, datasheets, or technical specifications for precise information on the properties and characteristics of the TU 768 PCB laminate material.


TU 768 PCB laminate exhibits exceptional performance characteristics that make it a preferred choice for various electronic applications. It possesses excellent electrical conductivity, ensuring efficient signal transmission across the circuit board. The material also offers high thermal conductivity, effectively dissipating heat generated by electronic components. Additionally, TU 768 demonstrates a low dielectric constant, enabling precise control of signal integrity and minimizing interference.


Reliable Electrical Performance: TU 768 PCB laminate ensures stable electrical performance, minimizing signal loss and distortion, thereby enhancing overall circuit reliability.

Thermal Management: With its high thermal conductivity, TU 768 effectively dissipates heat, preventing overheating issues and ensuring optimal functionality of electronic devices.

Design Flexibility: The material’s versatility allows for complex circuit designs, enabling the implementation of advanced functionalities in various electronic applications.

Durability: TU 768 exhibits excellent mechanical strength and impact resistance, ensuring long-term reliability and durability in harsh environments.

Cost-Effective: Despite its superior performance, TU 768 PCB laminate offers a cost-effective solution, making it an attractive choice for manufacturers.

Applications of TU 768 PCB Laminate

TU 768 PCB laminate finds extensive application in industries such as telecommunications, automotive, aerospace, consumer electronics, and more. It is suitable for high-frequency circuitry, power electronics, RF/microwave applications, and advanced digital systems. Its thermal management capabilities make it ideal for LED lighting, motor control, and other heat-sensitive applications.

What Factor of Design TU 768 PCB laminate Considerations?

When designing with TU 768 PCB laminate, it is crucial to consider factors such as trace layout, impedance control, signal integrity, and thermal management. Proper design practices, such as optimized copper weight selection and controlled impedance routing, ensure the material’s performance is fully utilized.

Precautions for Manufacturing TU 768 PCB laminate

When manufacturing TU 768 PCB laminate, it is important to adhere to certain precautions to ensure the quality and reliability of the final product. Here are some key precautions to consider:

1.Storage Conditions:

Proper storage conditions should be maintained for TU 768 PCB laminate to prevent moisture absorption and contamination. It is recommended to store the material in a controlled environment with controlled temperature and humidity levels.

2.Material Handling:

Care should be taken during material handling to avoid physical damage or scratches to the TU 768 PCB laminate. Handling should be done using appropriate tools and equipment to prevent any potential harm to the material.

3.Surface Cleaning:

Before the manufacturing process, it is essential to clean the surface of the TU 768 PCB laminate to remove any contaminants or residues. This ensures proper adhesion and bonding during lamination.

4.Lamination Process:

The lamination process should be carried out precisely, following the manufacturer’s guidelines and recommended parameters. This includes proper alignment of layers, appropriate pressure, and temperature control to achieve optimal bonding and prevent delamination issues.

5.Curing and Pressing:

During the curing and pressing stages, it is crucial to maintain consistent and controlled conditions. This includes applying appropriate pressure and temperature profiles to ensure proper consolidation and curing of the TU 768 PCB laminate.

6.Quality Control:

Regular quality control checks should be implemented throughout the manufacturing process to monitor the adherence to specifications and identify any deviations or defects. This involves inspection of raw materials, in-process inspections, and final product testing.

7.Compliance with Standards:

Ensure that the manufacturing process complies with relevant industry standards and regulations to guarantee the reliability and safety of the TU 768 PCB laminate.

How to Test the quality of TU-768 Laminate?

To test the quality of TU-768 laminate, you can perform several assessments to evaluate its durability, appearance, and performance. Here are some methods you can use:

1. Visual Inspection: Examine the laminate sheets for any visible defects, such as scratches, cracks, bubbles, or uneven surfaces. Look for consistent color and pattern throughout the laminate.

2. Thickness Measurement: Measure the thickness of the TU-768 laminate using a digital caliper. Compare the measured thickness with the manufacturer’s specifications to ensure it meets the required thickness.

3. Abrasion Resistance: Use a standardized abrasion test, such as the Taber test, to determine the laminate’s resistance to wear and tear. This test involves rubbing the laminate surface with a rotating abrasive wheel and measuring the weight loss or changes in appearance.

4. Impact Resistance: Conduct an impact test by dropping a weighted pendulum or a steel ball onto the laminate surface from a specified height. Inspect the laminate for any cracks, chips, or other signs of damage.

5. Stain Resistance: Apply various staining agents like coffee, red wine, or markers to the laminate surface and leave them for a specific period. Then, clean the surface following the manufacturer’s recommendations and observe if any stains remain.

6. Heat Resistance: Place hot objects, such as a hot pan or a lit cigarette, on the laminate surface for a short duration. Check for any discoloration, burn marks, or warping.

7. Moisture Resistance: Expose the laminate samples to a high-humidity environment or submerge them partially in water for a specified time. Inspect the laminate for any swelling, delamination, or changes in appearance.

8. Chemical Resistance: Apply various common household chemicals, such as cleaning agents or solvents, to the laminate surface. Wipe them off promptly and check for any discoloration, staining, or surface damage.

9. Flexural Strength: Perform a flexural test to assess the laminate’s ability to withstand bending or flexing without cracking. This test involves applying a gradually increasing load to a supported laminate sample until it breaks.

10. Fire Resistance: Verify if the TU-768 laminate has been tested and certified for fire resistance according to relevant standards. Check for fire ratings, such as Class A, B, or C, to ensure compliance with your specific requirements.

It’s important to note that some of these tests may require specialized equipment and expertise. Therefore, it might be helpful to consult a professional or contact the manufacturer for specific testing recommendations and standards applicable to TU-768 laminate.

Key Cost Drivers for TU-768 Laminates

There are several factors that can influence the cost of TU PCB (Printed Circuit Board) materials.


The size of the laminates plays a significant role in determining their prices. Generally, larger TU laminates tend to be more expensive compared to smaller ones. This is primarily because the production of larger laminates requires additional materials, efforts, and time. The increased size necessitates more resources and meticulous manufacturing processes, leading to higher costs.


Purchasing TU 768 PCB materials in bulk often results in higher expenses. When buying in larger quantities, it is important to be prepared for increased costs. Bulk orders typically incur higher prices due to economies of scale and logistical considerations.


Certain TU PCB materials can be inherently complex to produce. These materials may present various challenges during the manufacturing process, requiring additional procedures and meticulous attention. The complexity involved in their production contributes to higher costs, as it demands specialized expertise, resources, and advanced manufacturing techniques.

Production Volume

The volume of TU-768 laminates being produced can affect their cost. Higher production volumes often lead to economies of scale, where the cost per unit decreases as the quantity increases. Conversely, lower production volumes may result in higher costs per unit due to reduced efficiency and utilization of resources.

Technology Advancements

Advancements in technology can impact the cost of TU-768 laminates. Newer generations of laminates may incorporate advanced materials or manufacturing techniques, which can increase their cost compared to older, less sophisticated alternatives.

Market Competition

Market competition among manufacturers and suppliers of TU-768 laminates can influence pricing. Intense competition may lead to price fluctuations or competitive pricing strategies as manufacturers strive to attract customers. It’s important to consider the competitive landscape when assessing the cost of TU-768 laminates.

Common Failure Causes of TU-768 Laminate

When encountering issues with TU-768 PCB laminate, it is advisable to conduct troubleshooting to identify potential causes of its malfunction. This section will discuss common reasons for failure.

One possible cause is delamination, which occurs when excessive heat affects the bond strength of the multilayered board. Flawed bonding or insufficient resistance to heat can lead to delamination. To ensure flawless bonding and heat resistance, it is crucial to engage a manufacturer with extensive experience in laminate production. Although various mechanical and chemical factors can contribute to delamination, the previously mentioned cause is the most common.

Mechanical factors influencing the laminate include the choice of prepreg class and the stack-up configuration. Chemical factors comprise oxidation and degradation. Moisture retention is another significant cause of TU-768 failure, compromising the effectiveness of previously optimized processes.

However, such failures can be mitigated by partnering with a reputable manufacturer possessing comprehensive industry knowledge. At JarnisTech, we prioritize the quality of our products, guaranteeing exceptional standards for our clients.

Importance of TU-768 Laminate in PCB

There are several compelling reasons to consider incorporating TU-678 laminate and prepreg into circuit boards:

1. Adherence to IPC-4101 Specifications: TU-678 laminate and prepreg materials comply with IPC-4101 specifications, ensuring that they meet industry standards for quality and performance.

2. Rigorous Quality Assurance and Approvals: These laminates undergo stringent quality assurance processes and hold necessary approvals, assuring their reliability and adherence to established standards.

3. Eco-Friendly Composition: TU-678 laminates prioritize eco-friendliness, as they are FR-4 compliant, halogen-free, red-phosphorous-free, and antimony-free. This environmentally conscious approach aligns with sustainable practices and regulations.

4. Wide Range of Applications: TU-678 laminates are widely utilized in numerous original equipment manufacturer (OEM) applications. Their ability to withstand mass lamination processes and durability in various operating conditions demonstrates their exceptional quality and performance.

5. Cost Savings and Manufacturing Versatility: Incorporating TU-678 laminates offers significant cost savings without compromising quality. These laminates provide manufacturing versatility, making them suitable for a wide range of PCB fabrication procedures.

By selecting TU-678 laminate and prepreg, one can benefit from their compliance with industry specifications, rigorous quality assurance, eco-friendly composition, versatility in applications, and cost-effectiveness. These factors make TU-678 laminates a favorable choice for achieving reliable and high-performance circuit boards.


TU 768 PCB laminate stands as a reliable and high-performance material for various electronic applications. With its exceptional electrical conductivity, thermal management capabilities, and design flexibility, it enables the creation of reliable and efficient circuit boards. Manufacturers across industries benefit from TU 768’s cost-effectiveness and durability, making it a preferred choice in the realm of printed circuit board fabrication.

Call us to get a free quote now