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High-frequency and high-speed materials of PCB boards

August 2, 2025

High-frequency and high-speed materials of PCB boards

In high-speed digital circuits and RF/microwave applications,the tradition FR-4 materials are can’t satisfied the requirement of Low loss, low latency and stability.High-frequency and high-speed materials of PCB boards have emerged as a result,It becomes a key cornerstone for high-speed signal transmission

First:materials of PCB boards for Enhanced Epoxy

  Features:it is improved base on the standard FR4 epoxy resin,enhance the Tg value,perfect the heat resistance and reduce the Dk/Df value.the cost is relatively low

Representative PN:FR408HR,Megtron4 , Megtron 6,TU-768 and TU-872SLK

Application:Data center switches, high-end routers,and some high requirements consumer Electronics.It is a common choice for upgrading FR-4

Second:High-frequency and high-speed materials of PCB boards for PTFE/Teflon-Based

Features:Base on PTFE,the lowest df value is the most significant advantage,it can provide the outstanding high-frequency and low-loss performance,the DK value usually very low(about 2.0-2.5).It has strong chemical inertness and good weather resistance.but the price very high,The thermal conductivity is not good,and it is difficult to make the PTH,THE CTE requiment also very high.

Representative series:RO3000 series,RT/duroid series,Taconic  series,Arlon series

Application:Radar, base station antenna, satellite communication, automotive radar 77GHz,In addition,Extremely demanding millimeter-wave applications

High-frequency and high-speed materials

Third:High-frequency and high-speed materials of PCB boards for Hydrocarbon Ceramic

Features:It achieves an excellent balance among low loss (low Df), stable Dk, good processability (close to FR-4) and relatively reasonable cost.and the mechanical properties, heat resistance and dimensional stability are usually superior to those of PTFE plates.

Representative :RO4000 series,Astra MT77,Megtron 7/8,TU-883 and so on

Application:The most widely used at present for High-frequency and high-speed materials of PCB boards.Servers, switches, routers, optical modules and so on

Finally:High-frequency and high-speed materials of PCB boards for CE/BT

Features:It has a very high Tg,excellent heat resistance,Low CTE and good behaviour of electricity.but the cost very high.

Representative:Mitsubishi Gas Chemical,CCL-HL832NSF

Application:Applications in high-reliability and high-temperature resistant environments such as aerospace and military industries.And IC Substrate

High-frequency and high-speed materials

Suga also has reserves of these materials. If you need PCBS and PCBA made of such materials, don’t forget to contact us

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