Xingqiang Circuit: Empowering Global High-Speed Communication via Precision Material Selection

February 9, 2026

Latest company news about Xingqiang Circuit: Empowering Global High-Speed Communication via Precision Material Selection

As the electronics industry advances into the 5G and AI era, PCBs are no longer mere carriers for components—they are the heart of signal integrity. Xingqiang, a China-based expert in custom PCB manufacturing, specializes in high-quality double-sided, multilayer, HDI, and high-frequency/high-speed boards, helping global clients solve complex impedance and loss challenges.


DK & DF: The Dual Pillars of Circuit Performance
In material science, DK (Dielectric Constant) and DF (Dissipation Factor) are the "soul" of material selection:
• DK (Dielectric Constant): Determines signal velocity. A higher DK leads to greater signal delay. For high-speed transmission, a low and stable DK is vital for impedance matching and reducing signal reflection.
• DF (Dissipation Factor): Determines energy loss. A lower DF results in less signal energy being converted into heat. In high-frequency applications, an ultra-low DF ensures signals remain clear and intact over long distances.


Xingqiang Professional Material Selection Guide

To assist clients in balancing performance and cost, Xingqiang offers the following material solutions:

Application Recommended Material Grade DK (Ref @ 1GHz) DF (Ref @ 1GHz) Xingqiang Typical Use
Consumer Electronics Standard FR-4 4.2 - 4.8 0.015 - 0.035 Double-sided / Simple Multilayer
High-Speed Digital Mid-Loss / High Tg 3.8 - 4.1 0.008 - 0.012 Servers / HDI Boards
High-Frequency/Radar Low-Loss (PTFE/Hydrocarbon) 2.2 - 3.5 0.001 - 0.004 5G Base Stations / Satellite
RF Microwave Ultra-Low Loss Ceramic < 3.0 < 0.001 Military / Aerospace HF Boards

All DK/DF values are typical test data at 1GHz. Custom material grades and stack-up designs are available upon request.


Feasible Solutions by Xingqiang

Xingqiang is more than just a manufacturer; we are your technical partner. To support our export clients, we provide:

  • Customized Stack-up Design: Precise DK offset calculations to optimize lamination thickness based on your impedance requirements.

  • Global Supply Chain: Access to premium brands like Rogers, Isola, and Panasonic Megtron, alongside high-quality domestic alternatives to meet budget targets.

  • Rigorous Quality Control: 100% impedance testing for HDI and high-speed boards to ensure compliance with international standards.

Our technical expertise ensures your products stand out in the global market.