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In this article, we’ll discuss what really characterizes the high frequency VT-6735 laminate. The relevant information is available for pcb design engineers to refer to in the selection of materials, And you can also call QFPCB to discuss. QFPCB offers the best services when it comes to the high speed and high frequency laminate, so please feel free to contact us.

What is the high frequency VT-6735 laminate?
VT-6735 delivers outstanding thermal conductivity, exceeding 1 W/mK. This characteristic ensures efficient heat dissipation, which is crucial for maintaining device performance and preventing thermal degradation in high power applications. The material exhibits a very low dielectric loss factor (Df 0.0015). This low-loss property supports high frequency signal integrity, making it ideal for applications requiring minimal signal attenuation.
VT-6735 maintains excellent peel strength with both shiny side and reverse-treated copper foil. This ensures robust bonding and mechanical reliability, even under challenging manufacturing conditions. VT-6735 is fully compatible with lead-free soldering processes, aligning with modern environmental and regulatory standards. VT-6735 high speed laminate stands out as a premium choice for demanding applications, offering an exceptional balance of thermal management, electrical performance, and mechanical stability.
The features of the high frequency VT-6735 datasheet

Some of the key material characteristics include:
High Thermal Conductivity (Over 1 W/mK)
With thermal conductivity exceeding 1 W/mK, VT-6735 effectively dissipates heat generated by high-power components, ensuring long-term reliability and performance stability. Superior thermal management prevents overheating, reducing the risk of component failure and extending the lifespan of electronic devices.
Low Loss (Df 0.0015)
The ultra-low dissipation factor (Df) of 0.0015 minimizes energy loss, ensuring efficient signal transmission even at high frequencies. Maintains signal integrity by reducing phase distortion and crosstalk, critical for high speed data transmission and high frequency applications.
Good and Stable Peel Strength with Both Shiny Side and Reverse Treated Copper Foil
VT-6735 exhibits excellent peel strength with both shiny side and reverse treated copper foil, ensuring strong bonding between the laminate and copper layers. Provides durable and reliable connections that can withstand mechanical stress and thermal cycling without degradation.
Lead-Free Process Compatible
Fully compatible with lead-free soldering processes, aligning with environmental regulations and industry standards. Ensures compliance with evolving environmental policies and supports sustainable manufacturing practices.
What are the applications of the high frequency VT-6735 laminate?
VT-6735 finds extensive use in various high performance applications due to its advanced characteristics, these applications span industries such as telecommunications, aerospace, and advanced computing, where consistent performance and reliability are non-negotiable.
High Power RF and Microwave Amplifiers
Ensuring efficient thermal control and minimal signal loss. Ideal for amplifiers requiring high efficiency and minimal signal loss, ensuring reliable communication over large areas.
Suitable for power amplifiers where high output power and thermal management are essential, providing robust performance under heavy loads. Delivering reliable and stable performance under high-power conditions.
Couplers & Filters
Supporting precision signal filtering with minimal loss. Perfect for couplers and filters used in RF systems, ensuring precise signal splitting and filtering with minimal insertion loss.
Power Dividers
Enabling effective signal distribution with high efficiency. Essential for power dividers that demand reliable distribution of signals across multiple paths, maintaining signal integrity and efficiency.
What are the benefits of the high frequency VT-6735 laminate?
VT-6735 is an advanced high performance material designed to meet the demands of modern electronic applications. It offers a unique combination of electrical, thermal, and mechanical properties, making it ideal for high frequency and high reliability environments.
Low Dielectric Constant (Dk)
At 10GHz, VT-6735 maintains a low dielectric constant of 3.5, ensuring excellent signal integrity and minimal signal loss in high frequency applications. The dielectric constant is an important electrical property that measures the ability of a material to store electrical energy in an electric field. A low dielectric constant means that the material can reduce the interaction between electric charges, which is particularly beneficial in various applications.
Good Thermal Conductivity
With a thermal conductivity of 1.15 W/m·K, VT-6735 effectively dissipates heat, improving the reliability and longevity of electronic devices operating under high thermal loads. Thermal conductivity refers to the ability of a material to conduct heat, which is a critical property for managing temperature in electronic devices, mechanical systems, and other heat-sensitive environments.
Flammability Rating UL 94V-0
VT-6735 meets the UL 94V-0 flammability standard, providing excellent flame-retardant properties and enhancing safety in electronic applications.
Low Moisture Absorption
The material exhibits low moisture absorption, which ensures stable performance even in humid or challenging environmental conditions. Moisture absorption refers to the tendency of a material to absorb water from its environment, which can lead to several undesirable effects such as dimensional changes, degradation of mechanical properties, and reduced electrical performance.
Conclusion
VT-6735 High Speed Laminate stands out as an advanced solution for designers and manufacturers seeking high performance PCB materials that deliver high thermal conductivity, low loss, good and stable peel strength, and lead-free process compatibility. By choosing VT-6735, manufacturers can achieve superior performance, enhanced safety, and extended product lifetimes.