I. Ultimate Electrical Performance: The “Reliable Steward” for High-Frequency, High-Speed Signals
The most critical requirement for high-end circuit boards (particularly those used in AI servers, 5G base stations, and high-speed network switches) is the ability to transmit signals rapidly and with minimal attenuation; electronic cloth is uniquely positioned to meet this exact demand.
Low Dielectric Constant, Low Loss: Ordinary glass fiber fabrics tend to slow down high-speed signals and generate heat. In contrast, high-end electronic cloth—fabricated using high-purity formulations and precision weaving techniques—drives the dielectric constant (Dk) down to below 3.5 and reduces dielectric loss (Df) to the ultra-low level of 0.002. Data indicates that for every 10% reduction in dielectric constant, signal transmission speed can effectively double; furthermore, low dielectric loss significantly minimizes transmission attenuation, ensuring the integrity and distortion-free transmission of ultra-high-speed signals ranging from 112 Gbps to 1.6 Tbps.
Superior Insulation Properties: Electronic cloth is inherently non-conductive and possesses exceptional voltage-withstanding capabilities. Within the high-density circuitry of multi-layer boards, it effectively prevents short circuits and crosstalk, thereby safeguarding the electrical integrity and safety of the circuit layout amidst complex wiring configurations.
II. Structural and Thermal Stability: The “Robust Skeleton” of the Circuit Board
High-end PCBs have to be robust enough to withstand high-temperature soldering, endure long durations due to excessive heat during their operation, and withstand the thermal shock associated with repeated heating and cooling. High-end PCBs have to remain intact, both physically and structurally, without any cracking, warping or deformities.
Ultra-high strength: The special glass fabric mesh is made from electronic glass yams of extremely fine filament diameter (9-micron or lower). Therefore, the mesh is very thin and lightweight, yet mechanically very strong.The glass mesh supports the PCB with rigid structural support and maintains dimensional accuracy during the entire production process (etching,laminating, component assembly, etc).
Extreme high-temperature resistance and low thermal expansion (Low-CTE): With a softening point of > 700°C, the mesh can withstand the high temperatures required for the reflow soldering process. Some special glass mesh fabrics offer up to 3ppm/°C Coefficient of Thermal Expansion (CTE) and can hold copper foils and semiconductor chips at the same temperature as the PCB material.This feature prevents glass mesh from warping/tear during reflow and thus will eliminate any solder joint fatigue failures.
Chemically Stable and Resistant to Corrosion: This product has outstanding resistance to acid, base, moisture, as well as hot humid environments, together with its resistance to aging, ensures that the product remains reliable over very long periods of time (i.e. typically 15 years) in Industrial-Grade, Military-Grade & Automotive-Grade Circuit Boards (PCBs).
III. Compatibility of High-End Manufacturing Processes with The “Ideal Substrate” in High-Density Integration
As modern PCBs are produced at record low thicknesses with multiple layers stacked together along with high density and micro via technologies, fabric based electronic materials provide a high level of compatibility with these state of the art manufacturing methods.
Flat Laminating: (Ultra-Thin, Uniform, Highly Flat) High-end electronics fabrics, like ultra-thin 106/1080 specification fabric, can have a thickness measured in 10 microns or less. The fiber distribution is also uniform and has no defects over the entire surface. Therefore, these fabrics are ideal to use for flat laminating high layer count boards (10–30 layers) and for high density interconnect (HDI) boards, as well as for maintaining consistent thickness of layers and providing strong interlayer bonds.
Superior Resin Impregnation After treatment, the fabric can be seamlessly bonded with epoxy resin and other specialty resins to form high strength, high stability copper clad laminate (CCL) that is the main structure used for PCB substrate.
IV. Critical Industry Demand: A Strategic Material For The Age Of Artificial Intelligence And High Speed.
Because we are making more and more AI servers, new packaging (chiplet) technologies and optical modules that run at 800G/1.6T speed, we have outgrown the materials that have traditionally been used in our products. The emergence of high-end electronic fabrics, which is being represented by current high-end computing power, has turned into a critical and irreplaceable material type and a ‘bottleneck’ material type, so to speak, as well as in the overall infrastructure of computing power.
AI Server Boards: A single AI server requires five times the volume of “Q-glass” fabric compared to a traditional server, necessitating materials with extremely low dielectric constant (Dk) and dielectric loss (Df), as well as an ultra-low CTE.
Advanced Packaging (CoWoS/FC-BGA): Low-CTE electronic fabrics are absolutely essential for mitigating issues related to chip-stacking warpage and high thermal stress within advanced packaging architectures.
5G/6G and Millimeter-Wave Technologies:Only low-dielectric electronic fabrics can effectively minimize signal loss at high frequencies, thereby ensuring the stability and reliability of communication networks.
Electronic fabrics are not merely supporting players; they serve as the fundamental cornerstone of performance, the structural skeleton, and the ultimate guarantor of signal integrity for high-end circuit boards. With its exceptional electrical, thermal, and mechanical properties, it serves as the foundational hardware platform underpinning AI, 5G, and high-end computing. Without high-end electronic fabrics, neither high-performance PCBs nor advanced computing infrastructure would be possible.
Moving forward—as materials continue to evolve toward lower dielectric constants (Dk), lower coefficients of thermal expansion (CTE), and higher purity—electronic fabrics will remain the most critical and irreplaceable core substrate for high-end PCBs.
Post time: Apr-16-2026
