PTFE-Based Copper Clad Laminates Empower NVIDIA GB300, Igniting a Computing Power Revolution

Driven by the architecture upgrade of AI servers such as NVIDIA GB300, PTFE copper clad laminates (CCLs), as the core material of high-frequency and high-speed PCBs, have shown clear demand growth and technological substitution logic.

Core Technical Value of PTFE Materials

PTFE (polytetrafluoroethylene) has become a commonly used material in PCB manufacturing due to its excellent performance. Its dielectric constant (Dk≈2.1) and loss factor (Df＜0.0005) are significantly superior to traditional PPO resins (Dk≈3.0, Df≈0.007).

In the 224Gbps high-speed signal transmission scenario of GB300 (with a frequency of 50-60GHz under PAM4 encoding), PTFE can reduce signal attenuation to less than 1/10 of that with traditional materials. Meanwhile, it can withstand high temperatures of 260℃ and has corrosion resistance, significantly improving the performance of PCBs in complex environments such as high frequency, high speed, and high temperature, making it the preferred solution for high-frequency PCBs.

Key Applications of PTFE in PCB Manufacturing

NVIDIA GB300

• High-Frequency Copper Clad Laminates (CCL): PTFE-based CCLs, as the core substrate of AI server orthogonal backplanes, have been applied on a large scale in high-end equipment. Taking the GB300 cabinet as an example, 38 out of its 40-layer backplane architecture adopt PTFE hybrid pressing process design, and the value of a single machine's printed circuit board (PCB) has achieved a several-fold jump compared with traditional solutions.

• Signal Integrity Enhancement: By replacing copper cable interconnection solutions (such as the signal links between computing trays and switching trays in the GB300 system), the PTFE technical path can effectively suppress signal crosstalk and improve transmission energy efficiency. At the same time, it promotes the migration of the original $12 billion copper cable market value to the PCB field.

Key Application Fields of PTFE CCLs

Why Tsingyane's PTFE CCLs Stand Out?

• Material Level: Tsingyane conducts customized preparation of relevant materials according to specific technical requirements, strictly controlling the impurity content in materials from the source, which effectively improves the dielectric properties of the materials.

• Manufacturing Process: Tsingyane has developed an original green manufacturing process, realizing the uniform mixing of PTFE resin and ceramic powder at the nanoscale. This uniform mixing state endows the CCLs with ultra-low loss characteristics and a low coefficient of thermal expansion, ensuring that their dielectric constant (DK) and dielectric loss (DF) remain highly stable over a wide temperature and frequency range, providing reliable guarantee for lossless and accurate transmission of high-frequency signals. Relying on the collaborative innovation of materials, processes, and equipment, Tsingyane effectively ensures the in-board consistency, inter-board consistency, and batch consistency of CCL products, which can accurately meet the application needs of end-users.

Connecting Global Demand, Jointly Exploring a High-Frequency Future

Tsingyane's PTFE CCLs have broken through the technical barriers of material formulation and green manufacturing, mastered dozens of core patented technologies such as composite material preparation. The products have passed relevant tests for millimeter-wave radars, and are fully comparable to international first-tier brands in terms of usability, processability, and reliability.