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Top 10 PCB Material OEMs and Popular Laminate Families

Author Profile img: Pooja Mitra

By Pooja Mitra

May 14, 2026 | 0 Comments

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Reviewed for technical accuracy by Pranav Manjanath Tengse

Sr. Project Engineer

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Contents

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PCB material OEMs such as Isola, Rogers, and DuPont develop laminates optimized for specific electrical and mechanical requirements.

These laminates are grouped into different substrate families (FR4, polyimide, PTFE) based on their resin system, dielectric performance, and intended application. Understanding the strengths of different OEMs and dielectric families helps you select the right substrate for your design.

In this article, we list major PCB laminate manufacturers and their strengths. We also discuss different printed board material families and their properties.

Highlights:

  1. High-speed digital laminates such as Megtron 6, Astra MT77, and Tachyon 100G are used for 56G/112G networking, AI, and server applications.
  2. Rogers and Taconic PTFE or ceramic-filled laminates like RO3003 and RT/DUROID 5880 are chosen for ultra-low-loss RF and microwave designs.
  3. Polyimide laminates from Arlon and Ventec are picked for aerospace, defense, and high-temperature applications requiring long-term thermal reliability.
  4. DuPont Pyralux is generally chosen for flexible and rigid-flex designs used in compact, lightweight, and dynamic electronic systems.

Who are the leading PCB material OEMs?

Original equipment manufacturers (OEMs) such as Isola, Nelco, Ventec, Panasonic, and Arlon are widely recognized for high-reliability laminates used in servers, aerospace, defense, automotive, and high-speed computing systems. Rogers and Taconic dominate RF and microwave materials, while DuPont is the industry standard for flexible and rigid-flex laminates.

The infographic below lists major PCB laminate manufacturers, their expertise, and common application areas.

popular-pcb-material-oems.webp
Popular PCB material OEMs.

In this section, we will discuss the major PCB material OEMs, highlight their areas of expertise, and compare the features of their commonly used laminates in a table.

1. Isola Group

Isola is one of the most recognized PCB material OEMs for digital infrastructure and enterprise computing. The company offers laminate solutions across multiple material families that include standard FR4, polyimide laminates, and low-loss hydrocarbon-based systems.

Isola materials are widely used in:

  1. High-speed servers
  2. Telecom infrastructure
  3. Industrial computing
  4. Data center hardware

Their substrates are known for strong thermal reliability, consistent processing behavior, and robust lead-free assembly performance. Engineers often select Isola when balancing high-speed electrical performance with manufacturability and long-term reliability.

Table 1: Popular Isola laminates and their characteristics
Material name Material type Key properties Typical applications
I-Speed Low-loss epoxy laminate
  • Stable dielectric performance
  • Strong thermal reliability
  • Good manufacturability
  • Networking equipment
  • Telecom boards
  • Enterprise computing systems
Tachyon Ultra-low-loss high-speed laminate
  • Very low Df
  • Stable dielectric behavior
  • Optimized for high-frequency signaling
  • 100G/400G networking
  • AI servers
  • Hyperscale computing
Astra MT77 Ultra-low-loss hydrocarbon-based laminate
  • Extremely low insertion loss
  • Low skew
  • Data centers
  • High-speed switches
  • PCIe Gen5/Gen6 systems
FR408HR High-performance FR4
  • High Tg
  • CAF resistance
  • Excellent lead-free assembly reliability
  • Industrial electronics
  • Servers
  • Telecom infrastructure

 

Among Isola’s portfolio, FR408HR remains one of the industry’s most widely adopted FR4 materials, while Tachyon and Astra MT77 target next-generation high-speed computing platforms requiring minimal insertion loss and tight impedance control.

 

To learn how to pick the right laminates, download the PCB Material Design Guide.

PCB Material Design Guide - Cover Image

PCB Material Design Guide

9 Chapters - 30 Pages - 40 Minute Read
What's Inside:
  • Basic properties of the dielectric material to be considered
  • Signal loss in PCB substrates
  • Copper foil selection
  • Key considerations for choosing PCB materials

 

2. Rogers Corporation

Rogers Corporation is considered one of the industry leaders in RF and microwave PCB materials. The company specializes in PTFE-based laminates (commonly known by the trade name Teflon)  and ceramic-filled substrates engineered for stable high-frequency electrical performance.

These materials are widely used in:

  1. Radar systems
  2. 5G infrastructure
  3. Aerospace RF modules
  4. Satellite communications

Rogers laminates are known for extremely low dielectric loss and strong signal integrity at microwave and millimeter-wave frequencies.

Table 2: Popular Rogers materials and their characteristics
Material Material type Key properties Typical applications
RO4003C Hydrocarbon ceramic laminate
  • Low loss
  • Stable Dk
  • Easy processing
  • RF antennas
  • Wireless systems
RO4350B Hydrocarbon ceramic laminate
  • Low insertion loss
  • Strong thermal stability
  • Power amplifiers
  • RF modules
RT/duroid 5880 PTFE composite laminate
  • Extremely low Dk and Df
  • Aerospace RF and radar systems
RO3003 Ceramic-filled PTFE laminate
  • Stable dielectric performance across frequency
  • Automotive radar
  • Microwave communication systems

 

Among Rogers’ materials, the RO4000 series is widely adopted for commercial RF applications, while RT/duroid materials dominate high-end aerospace and microwave systems.

3. Nelco (AGC Multi Materials)

Nelco, now a part of AGC Multi Material, is a widely recognized PCB material OEM that offers laminates across low-loss epoxy and polyimide materials used in advanced networking and enterprise computing platforms.

These materials are widely used in:

  1. Enterprise networking equipment
  2. High-performance computing systems
  3. Storage infrastructure
  4. Telecom platforms

Their laminates are valued for low dielectric loss, stable electrical behavior, and strong reliability under thermal stress. Designers commonly select Nelco for high-layer-count digital systems requiring tight impedance control and consistent high-speed performance.

Table 3: Popular Nelco laminates and their characteristics
Material Material type Key properties Typical applications
N4000-13 SI High-speed epoxy laminate
  • Low loss
  • Stable dielectric performance
  • Lead-free compatibility
  • Networking equipment
  • Telecom infrastructure
N4000-13EPSI Enhanced low-loss epoxy laminate
  • Improved signal integrity
  • Reduced insertion loss
  • Enterprise servers
  • Network switches
N7000-2 HT High-temperature polyimide laminate
  • High thermal reliability
  • Strong CAF resistance
  • High-density computing platforms

 

Among Nelco’s portfolio, the N7000 series remains one of the company’s most recognized material families for low-loss, high-reliability digital applications.

4. Taconic (AGC Multi Materials)

Taconic laminates are now a part of AGC Multi Material’s advanced PCB substrate portfolio. They specialize in PTFE and RF laminates designed for cost-effective microwave and high-frequency applications.

Taconic materials are widely used in:

  1. RF antennas
  2. Wireless communication modules
  3. Commercial microwave systems
  4. Industrial RF equipment

Their laminates are recognized for low dielectric loss, stable electrical behavior, and flexible processing characteristics. The company offers laminate solutions across multiple RF PCB material families that include PTFE woven-glass laminates and ceramic-filled microwave substrates.

Table 4: Popular Taconic substrates and their characteristics
Material name Material type Key properties Typical applications
RF-35 Ceramic-filled PTFE laminate
  • Low loss
  • Stable Dk
  • Commercial RF systems
TLY Series PTFE woven-glass laminate
  • Extremely low Df
  • Low moisture absorption
  • Microwave antennas
  • RF modules
TSM-DS3 PTFE laminate
  • Low loss
  • Improved thermal and mechanical stability
  • Automotive radar
  • Power amplifiers
  • High-power RF systems

 

Among Taconic’s portfolio, the TLY series is widely recognized for microwave applications where careful PCB material selection is critical for stable RF performance and extremely low dielectric loss.

In addition to its PTFE-based RF materials, AGC Multi Material also offers the FastRise laminate family for high-speed digital and mixed RF/digital applications. Unlike Taconic’s traditional PTFE microwave laminates, FastRise is positioned toward low-loss digital interconnect and networking systems.

 

Pick the best materials that suit your applications with our advanced PCB Material Selector.

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PCB DESIGN TOOL

Material Selector

Calc TRY TOOL

 

5. DuPont

DuPont is considered the industry benchmark for flexible and rigid-flex laminates. The OEM’s polyimide-based PCB material is widely used in dynamic applications.

DuPont materials are widely used in:

  1. Wearable electronics
  2. Medical devices
  3. Aerospace flex circuits
  4. Automotive electronics

Their laminates are known for exceptional flex durability, thin-profile construction, and strong thermal stability.

Table 5: Popular DuPont laminates and their characteristics
Material name Material type Key properties Typical applications
Pyralux AP Adhesiveless polyimide laminate
  • Excellent dynamic flex durability
  • Wearables
  • Medical flex circuits
Pyralux LF Flexible laminate system
  • Thin profile
  • Flexible processing
  • Consumer electronics
Pyralux FR Flame-retardant flex laminate
  • UL compliance
  • Thermal reliability
  • Automotive
  • Industrial electronics

 

Among DuPont’s portfolio, Pyralux AP remains one of the industry’s most widely adopted materials for dynamic flex applications.

6. Ventec International Group

Ventec is a major supplier of high-reliability laminates for aerospace, automotive, industrial, and high-speed digital systems. The PCB material OEM offers a broad portfolio that includes high-Tg epoxy systems and low-loss digital laminates.

Ventec materials are widely used in:

  1. Aerospace electronics
  2. Automotive systems
  3. Industrial automation
  4. Server infrastructure

Their laminates are known for strong thermal reliability, consistent processing behavior, and global supply-chain support. Ventec materials are commonly selected for multilayer systems requiring reliable electrical performance.

Table 6: Popular Ventec laminates and their characteristics
Material Material type Key properties Typical applications
VT-47 High- Tg FR4 laminate
  • Strong thermal endurance
  • CAF resistance
  • Industrial electronics
  • Telecom PCBs
VT-464 Low-loss epoxy laminate
  • Halogen-free
  • Low insertion loss
  • Improved signal integrity
  • High-speed networking systems
VT-5A2 Thermal management laminate
  • Enhanced thermal conductivity
  • Power electronics
  • LED systems
VT-901 Polyimide laminate
  • High-temperature reliability
  • Aerospace and defense electronics

 

Among Ventec’s portfolio, VT-901 materials are widely adopted in aerospace, defense, and other high-temperature electronic systems, while the company’s thermal-management laminates are commonly used in power electronics and heat-intensive systems.

7. Elite Material Co. (EMC)

EMC is a major supplier of high-performance epoxy and low-loss laminate systems used in networking, AI computing, telecom, and high-layer-count PCB applications. The company has gained strong adoption in high-speed digital infrastructure by offering substrates that balance electrical performance, thermal reliability, and manufacturability.

EMC materials are widely used in:

  1. High-speed networking systems
  2. AI and HPC platforms
  3. Telecom infrastructure
  4. Enterprise servers

Their laminates are known for low dielectric loss, dimensional stability, and reliable lead-free assembly performance.

Table 7: Popular EMC laminates and their characteristics
Material Material type Key properties Typical applications
EM-528 High-Tg low-loss epoxy laminate
  • Low dielectric loss
  • Excellent thermal reliability
  • High-speed networking
  • Server systems
EM-370(Z) High-performance FR4 laminate
  • Balanced electrical performance
  • Thermal stability
  • Enterprise computing systems
EM-888 Low-loss epoxy laminate
  • Reduced insertion loss
  • Improved signal integrity
  • Telecom boards
  • Networking equipment
EM-890K Ultra-low-loss hydrocarbon-PPE laminate
  • Optimized for high-speed computing and HDI systems
  • AI servers
  • HPC platforms

 

Among EMC’s portfolio, EM-528 and EM-890K are widely recognized for demanding high-speed computing applications and advanced multilayer designs.

8. Arlon Electronic Materials

This OEM is now a part of Elite Material Co., which develops products across multiple PCB material families, including polyimide and RF/PTFE laminates built for high-temperature and harsh-environment applications.

Arlon materials are widely used in:

  1. Defense electronics
  2. Aerospace systems
  3. Downhole drilling equipment
  4. Harsh industrial environments

Their laminates are known for excellent thermal stability, chemical resistance, and reliability under severe environmental stress.

Table 8: Popular Arlon laminates and their characteristics
Material family Material type Key properties Typical applications
85N Polyimide laminate
  • High Tg
  • Thermal cycling durability
  • Aerospace and military electronics
49N High-temperature low-flow epoxy prepreg
  • Strong thermal endurance
  • Harsh industrial systems

 

Among Arlon’s portfolio, the 85N series remains widely adopted in defense and aerospace electronics requiring long-term performance under demanding operating conditions.

9. Panasonic Industry

The company has become one of the leading PCB material OEMs of ultra-low-loss laminates for hyperscale computing and advanced networking systems through its Megtron material family.

Panasonic materials are widely used in:

  1. AI servers
  2. Data centers
  3. Cloud networking hardware
  4. High-speed computing platforms

Their laminates are known for extremely low insertion loss, tight impedance control, and excellent signal integrity at very high data rates.

Table 9: Popular Panasonic laminates and their characteristics
Material Material type Key properties Typical applications
Megtron 6 Ultra-low-loss hydrocarbon-PPE laminate
  • Very low Df
  • Stable signal integrity
  • High-speed servers
  • Cloud computing infrastructure
Megtron 7 Advanced ultra-low-loss hydrocarbon-PPE laminate
  • Extremely low insertion loss
  • Low skew
  • AI accelerators
  • Hyperscale computing systems
R-5775 High-speed digital hydrocarbon laminate
  • Telecom boards
  • Enterprise networking systems
Felios Series Flexible polyimide laminate system
  • Thin profile
  • Thermal stability
  • Wearable electronics
  • Compact mobile devices

 

Among Panasonic’s portfolio, Megtron 6 and Megtron 7 are widely regarded as benchmark materials for hyperscale computing and next-generation networking systems.

10. Nan Ya Plastics Corporation

Nan Ya is one of the world’s largest suppliers of FR4 and mid- Tg epoxy laminates for high-volume electronics manufacturing. The company focuses on cost-effective materials for mainstream PCB production.

Nan Ya materials are widely used in:

  1. Consumer electronics
  2. Desktop PCs
  3. TVs and displays
  4. Home appliances

Their laminates are known for strong manufacturing consistency, broad availability, and cost optimization.

Table 10: Popular Nan Ya laminates and their characteristics
Material Material type Key properties Typical applications
NP-155F General-purpose FR4 laminate
  • Balanced cost
  • Stable manufacturability
  • Consumer electronics
NP-175 Mid- Tg epoxy laminate
  • Improved thermal reliability
  • PCs
  • Industrial electronics
NP-612 High- Tg laminate
  • Better lead-free assembly performance
  • Networking equipment
  • Telecom systems
NPG-170D Low-loss FR4 laminate
  • Reduced dielectric loss
  • Improved signal integrity
  • Mid-range networking hardware

 

Among Nan Ya’s portfolio, the NP series remains widely used in mass-market electronics manufacturing due to its balance of cost efficiency, manufacturability, and reliable baseline electrical performance.

OEM selection directly impacts material consistency, supply chain stability, and fabrication yield. Always confirm laminate availability and approved equivalents with your fabricator early in the design cycle.

Sierra Circuits fabricates and assembles high-quality circuit boards in the United States. Visit our PCB manufacturing capabilities to learn more.

How are PCB materials grouped into different families?

Laminates are categorized based on their resin system, dielectric performance, thermal stability, mechanical behavior, and intended application. Major laminate categories include polyimide, high-speed FR4, PTFE, ceramic-filled PTFE, hydrocarbon/PPE, hydrocarbon-ceramic-filled, and flexible laminates.

In this section, we will discuss the major printed board material families, compare their key electrical and thermal properties in a table, and highlight the important considerations to know before selecting the PCB substrate.

1. Polyimide (PI)

These are high-performance substrates specifically engineered for extreme operating environments. Polyimide laminates significantly outperform standard FR4 in high-temperature, high-reliability, and harsh-condition applications.

Key advantages:

  1. Very high glass transition temperature (250260°C).
  2. Excellent long-term thermal stability and high Td.
  3. Superior mechanical strength and durability.
  4. Strong chemical and solvent resistance.
  5. Low outgassing laminates, which make them suitable for aerospace PCBs.

The table below highlights the thermal and electrical robustness of polyimide laminates.

Table 11: Polyimide laminate properties
Material OEM Tg (°C) Td (°C) Dk (@10GHz) Df (@10GHz) CTE Z (ppm/°C) Thermal conductivity (W/mK) Features
P95 Isola 260 416 3.73 0.021 55 0.4 High thermal stability
N7000-2HT Nelco 250 376 3.5 0.009 40 0.45 CAF resistant
85N Arlon >250 407 4 0.01 55 0.2 High mechanical durability
85HP Arlon >250 430 4.2 0.009 45 0.5 Withstands high-temperature
33N Arlon >250 389 4.1 0.01 53 0.2 Excellent thermal and mechanical reliability
VT-901 Ventec 250 395 4.05 0.012 50 0.5 Aerospace grade

 

Things PCB designers and engineers should know:

  1. Recommended for continuous operating temperatures above 150°C (up to 200220°C depending on the grade).
  2. Well-suited for rigid-flex, aerospace, and harsh-environment applications.
  3. Higher material cost, but excellent long-term thermal and mechanical reliability.

2. FR4

FR4 remains the most widely used laminated category offered by the most PCB material OEMs. They are categorized into standard high-Tg laminates and advanced low-loss high-speed epoxy systems.

High-speed FR4 offers improved electrical performance while maintaining compatibility with standard fabrication processes. These substrates bridge the gap between standard FR4 and ultra-low-loss laminates for multi-gigabit applications.

Key advantages:

  1. Balanced electrical, thermal, and mechanical performance across a wide range of applications.
  2. High-speed FR4 grades provide lower dielectric loss and improved signal integrity for multi-gigabit designs.
  3. Lower cost than PTFE and hydrocarbon laminates while maintaining good electrical performance.
  4. Compatible with existing manufacturing processes.
  5. Higher Tg variants improve thermal stability and reduce warpage during soldering and thermal cycling.
    glass-transition-temperature-of-fr4-variants.webp
    Thermal expansion behavior of standard FR4 vs. high-Tg FR4 across the glass transition temperature range.
Table 12: FR4 and epoxy laminate properties
Material OEM Tg (°C) Td (°C)  Dk (@10GHz)  Df (@10GHz) CTE Z (ppm/°C) Thermal conductivity (W/mK) Features
FR408HR Isola 190 360 3.65 0.0095 55 0.4 Low loss and widely adopted
I-Speed Isola 180 360 3.63 0.006 60 0.4 Mid-loss and cost-effective
N4000-13 Nelco 210 350 3.6 0.009 70 0.35 Balanced cost and thermal performance
N4800-20 Nelco 180 360 3.55 0.0075 27 0.47 Low loss with excellent dimensional stability
EM-528 EMC 250 420 3.9 0.0061 25 0.6 Ultra-high Tg, low-loss laminate with excellent thermal reliability
NPG-170 Nan Ya 170 350 4.08 0.012 30 0.58 High-Tg laminate with good thermal reliability
EM-370(Z) EMC 190 390 4.2 0.015 35 0.58 High-performance FR4 with stable electrical performance
FR370HR Isola 180 340 3.92 0.025 45 0.4 Standard FR4 with balanced thermal reliability
VT-47 Ventec 170 340 4.27 0.016 45 0.5 High-Tg laminate with strong CAF resistance

 

Things PCB designers and engineers should know:

  1. Advanced FR4 and low-loss epoxy laminates are suitable for high-speed designs ranging from 10 to 112 Gbps.
  2. Provides a practical balance between electrical performance and cost.
  3. Compatible with conventional multilayer PCB fabrication processes.
  4. Supports complex multilayer stack-ups for high-speed digital and networking applications.

 

tool-image

PCB DESIGN TOOL

Stackup Designer

Calc TRY TOOL

 

3. Polytetrafluoroethylene (PTFE)

PTFE laminates deliver ultra-low dielectric loss and highly stable electrical performance, making them a preferred choice for RF, microwave, and millimeter-wave PCB designs.

Key advantages:

  1. Extremely low dielectric loss at high frequencies.
  2. Stable electrical performance across frequency and temperature.
  3. Excellent signal integrity for RF PCB designs.
  4. Well-suited for antennas, radar, and mmWave systems.
Table 13: PTFE laminate properties for RF and microwave applications
Material OEM Td (°C) Dk (@10GHz) Df (@10GHz) CTE Z (ppm/°C) Thermal conductivity (W/mK) Features
TLX-8 Taconic 553 2.55 0.0006 140 0.14 Very low loss with easier processing
TSM-DS3 Taconic 546 3 0.001 23 0.65 Low loss with improved thermal and mechanical stability
RT/DUROID 5880 Rogers 500 2.2 0.0009 237 0.2 Ultra-low loss, high-frequency stability
TLY-5 Taconic ~500 2.2 0.0015 280 0.22 Lightweight, suitable for antenna and high-speed RF applications

 

Things PCB designers and engineers should know:

  1. PTFE materials offer ultra-low loss, making them ideal for high-frequency designs (>10 GHz).
  2. More challenging to process than epoxy systems and may require specialized fabrication techniques.

    challenges-in-manufacturing-PCB-with-PTFE-material.webp
    Challenges in fabricating PCBs with PTFE laminates.
  3. Thermal performance varies based on filler content; ceramic-filled variants improve heat dissipation.
  4. Higher material and processing costs compared to FR4 and hydrocarbon laminates.

Also, see how to choose PCB laminates based on IPC standards to learn how IPC specifications influence material selection and PCB reliability.

4. Ceramic-filled PTFE

These materials combine the low-loss characteristics of PTFE with improved mechanical stability, dimensional control, and manufacturability.

Key advantages:

  1. Lower dielectric loss than epoxy-based laminates.
  2. Improved dimensional and thermal stability.
  3. Better manufacturability than pure PTFE systems.
  4. Suitable for high-frequency and high-power RF designs.
Table 14: Ceramic-filled PTFE laminate properties
Material OEM Td (°C) Dk (@10GHz) Df (@10GHz) CTE Z (ppm/°C) Thermal conductivity (W/mK) Features
RO3003 Rogers 500 3 0.001 25 0.5 Excellent dimensional stability and tight Dk control
RT/DUROID 6002 Rogers 500 2.94 0.0012 24 0.6 Low-loss and optimized for high-power RF and microwave circuits
Isoclad 917 Arlon ~500°C 2.2 0.0013 236 0.263 Ultra-low-loss flexible laminate for conformal and wrap-around antennas

 

Things PCB designers and engineers should know:

  1. Well-suited for RF, microwave, and antenna applications.
  2. Ceramic fillers significantly improve thermal conductivity, reduce Z-axis expansion, and enhance dimensional stability and mechanical rigidity compared to unfilled PTFE.
  3. Easier to process than pure PTFE laminates, but still require specialized fabrication techniques.
  4. Commonly used in power amplifiers, automotive radar (77 GHz), ADAS sensors, and conformal antenna systems.

5. Hydrocarbon-PPE

Hydrocarbon-polyphenylene ether (PPE) laminates provide low dielectric loss while maintaining processing compatibility closer to conventional FR4 systems. These materials are widely used in high-speed digital, AI, networking, and HPC applications.

Key advantages:

  1. Lower dielectric loss than standard FR4.
  2. Better manufacturability than PTFE materials.
  3. Good balance between performance and cost.
  4. Suitable for high-speed digital and networking systems.
Table 15: Hydrocarbon-PPE ultra-low-loss laminate properties
Material OEM Tg (°C) Td (°C) Dk (@10GHz) Df (@10GHz) CTE Z (ppm/°C) Thermal conductivity (W/mK) Features
Astra MT77 Isola 200 360 3.0 0.0017 50 0.45 Ultra-low-loss for 112G/224G
Tachyon 100G Isola 200 360 3.02 0.0021 45 0.42 Optimized for 100G+ networking
Megtron 7 Panasonic 200 400 3.61 0.003 42 0.42 Ultra-low-loss platform for AI and HPC systems
Megtron 6 R-5775 Panasonic 185 410 3.35 0.004 45 0.42 Low-loss for high-speed networking backplanes
Megtron 6 halogen-free Panasonic 250 435 3.7 0.002 39 0.37 Halogen-free ultra-low-loss laminate
I-Tera MT40 Isola 200 360 3.45 0.0031 55 0.61 Excellent thermal conductivity
EM-890K EMC 205 430 3 0.00254 45 0.6 HDI material for high-speed computing

 

Things PCB designers and engineers should know:

  1. Commonly used for 56G, 112G, and next-generation high-speed systems.
  2. Lower Df reduces insertion loss and improves signal integrity.
  3. Easier fabrication compared to PTFE laminates.
  4. Widely adopted in servers, AI accelerators, and networking backplanes.
  5. Provides a practical balance between electrical performance, manufacturability, and cost.

High-speed systems like AI servers often require embedded passive technologies to improve signal integrity and reduce routing complexity. To learn more, see OhmegaPly and TCR materials with embedded passives technology in PCB manufacturing.

6. Hydrocarbon-ceramic-filled

These materials provide a balance between radio frequency performance, manufacturability, and cost. They are widely used in RF systems that require lower loss than FR4 without the processing complexity of PTFE.

Key advantages:

  1. Easier to process than PTFE laminates.
  2. Good balance between RF performance and cost.
  3. Compatible with standard multilayer PCB fabrication.
  4. Suitable for RF and mixed RF/digital designs.
Table 16: Hydrocarbon and ceramic-filled RF laminate properties
Material OEM Tg (°C) Dk (@10GHz) Df (@10GHz) CTE Z (ppm/°C) Thermal conductivity (W/mK) Features
RO4003C Rogers >280 3.38 0.0027 46 0.71 Low-loss RF laminate, easy processing
RO4350B Rogers >280 3.48 0.0037 32 0.69 Low-expansion RF material widely used in automotive radar
TMM Series (3,4,6,10,10i) Rogers >280 3.27 – 9.8 ~0.002 20-26 ~0.7 Stable thermoset microwave laminate
RF-35A2 Taconic >280 3.5 0.0015 108 0.29 Cost-effective low-loss RF laminate
RF-60 Taconic 6.15 0.002 69 0.54 Optimized for high-power microwave designs.

 

Things PCB designers and engineers should know:

  1. Easier to process than PTFE and compatible with standard multilayer fabrication.
  2. Lower dielectric loss than standard FR4 materials.
  3. Well-suited for mixed RF and digital designs.
  4. Higher thermal conductivity improves heat dissipation in RF and power circuits.
  5. Commonly used in automotive radar, RF modules, and microwave PCB designs.
  6. Lower cost than PTFE for high-volume RF applications.

 

For radio frequency layout strategies, download our RF and Microwave Design Guide.

RF & Microwave Design Guide - Cover Image

RF & Microwave Design Guide

8 Chapters - 44 Pages - 60 Minute Read
What's Inside:
  • Basics of RF and microwave board design
  • Choosing RF materials
  • Trace, grounding, via, and stack-up design
  • Component selection and placement
  • Testing and isolation requirements to avoid interference

 

7. Flex

Flex laminates enable bending and dynamic motion while maintaining reliable electrical performance. These laminates are widely used in compact and space-constrained electronic systems.

flex-pcb-stack-up-material-families.webp
An 8-layer flex PCB stack-up.

Key advantages:

  1. Lightweight and space-efficient.
  2. Supports bending and dynamic flexing.
  3. Reduces connectors and interconnects.
  4. Enables compact and complex electronic designs.
Table 17: Flexible PCB laminate properties
Material OEM Tg (°C) Dk (@10GHz) Df (@10GHz) Thermal conductivity (W/mK) Features
Pyralux AP DuPont 220 3.2 0.003 0.26 Excellent dynamic flex durability
Pyralux LF DuPont 3.1 0.015 0.22 Thin profile
Pyralux FR DuPont 3 0.02 0.26 Flame-retardant, UL-compliant
Felios R-F775 Panasonic >340 3.2 0.003 0.16 High reliability, low-loss

 

Things PCB designers and engineers should know:

  1. Designed for applications requiring bending, folding, or dynamic flexing.
  2. Reduce connectors and cable assemblies in compact electronic systems.
  3. Requires careful bend-radius and flex-cycle analysis for long-term reliability.
  4. PCB thermal management becomes a concern due to the relatively low thermal conductivity.
  5. Commonly used in wearables, medical devices, cameras, and mobile electronics.
  6. Rigid-flex designs improve packaging density and system reliability.

Need help selecting the right printed board material family for your stack-up? Our engineering team can help you evaluate material alternatives based on signal integrity, thermal performance, manufacturability, and cost before you finalize your design.

You can book a meeting with our experts or call us at +1 (800) 763-7503.

pcb-design-support.webp

 

Selecting the right laminate is essential for achieving the required electrical performance, thermal reliability, manufacturability, and long-term durability. As designs move toward higher speeds, higher frequencies, and compact form factors, engineers increasingly rely on specialized PCB material OEMs’ expertise to optimize performance, cost, and reliability.

About the technical reviewer:

Pranav M. Tengse is the Team Lead for Engineering Tools R&D, Project Group at Sierra Circuits, with 5 years of experience specializing in stack-up design, PCB material selection, and designing SI tools.

Have queries on designing your next boards? Post them on our community, SierraConnect. Our design experts will answer them.

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post a question

About Pooja Mitra : Pooja Mitra is an electronics and communication engineer. With an experience of over three years in the PCB industry, she creates industry-focused articles that help electrical and PCB layout engineers.

Start the discussion at sierraconnect.protoexpress.com

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