2-Layer 15mil Rogers TMM10 RF/Microwave DK9.2 PCB with ENEPIG Finish

2-Layer 15mil Rogers TMM10 RF/Microwave DK9.2 PCB with ENEPIG Finish

This product is a high-performance, high-reliability 2-layer rigid printed circuit board built on Rogers TMM10 thermoset microwave substrate, finished with ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold) surface treatment. It is engineered specifically for RF, microwave, millimeter-wave, satellite communication, precision antenna, and high-frequency test applications requiring stable dielectric properties, low insertion loss, excellent thermal stability, and long-term assembly reliability.

Unlike standard FR-4 or general PTFE boards, this 15mil TMM10 PCB combines the advantages of ceramic-filled performance and thermoset processability, supporting fine-line manufacturing, reliable wire bonding, and lead-free assembly. It fully complies with IPC-Class-2 quality standards and undergoes 100% electrical testing before shipment, making it ideal for professional, mission-critical electronic systems.

1. PCB Construction & Parameter Table

This section summarizes the mechanical, structural, surface, and process specifications of the finished PCB, covering dimensions, line/space, hole size, surface finish, solder mask, silkscreen, and quality control.

2. PCB Stackup

This stackup uses a symmetrical 2-layer structure with a 0.381 mm TMM10 core and 35μm copper on both sides, ensuring impedance consistency, thermal balance, and high via reliability.

3. PCB Layout Statistics 

This table provides key design data including component count, pad types, via quantity, and net count, reflecting a compact, high-efficiency RF circuit layout.

4. Core Product Features & Performance Advantages

4.1 High-Frequency Electrical Performance

The PCB uses Rogers TMM10 with a process dielectric constant Dk = 9.20±0.23 @ 10 GHz and dissipation factor Df = 0.0022 @ 10 GHz, delivering extremely low insertion loss and stable signal propagation across wide bandwidths. Its thermal coefficient of dielectric constant (TCDk) is−38 ppm/°K from−55°C to +125°C, maintaining consistent electrical performance even under extreme temperature fluctuations. This stability is critical for precision filters, couplers, patch antennas, and satellite communication frontends.

4.2 Excellent Thermal & Mechanical Reliability

TMM10 substrate features isotropic in-plane CTE (X/Y) = 21 ppm/K and Z-axis CTE = 20 ppm/K, closely matched to copper. This minimizes thermal stress on plated through holes (PTHs) during thermal cycling and soldering, greatly improving via reliability and reducing pad liftoff risks. The material’s thermal conductivity reaches 0.76 W/m·K, approximately twice that of standard PTFE/ceramic substrates, supporting better heat dissipation in power-sensitive RF circuits. Decomposition temperature Td is 425°C (TGA), compatible with high-temperature lead-free reflow and wire-bonding processes.

4.3 ENEPIG Surface Finish for Superior Assembly Performance

ENEPIG provides a three-layer protective coating: electroless nickel, electroless palladium, and immersion gold. Compared with conventional ENIG, the palladium layer effectively prevents nickel oxidation and“black pad”risks, enhancing solder joint robustness and long-term storage stability. ENEPIG supports both gold and aluminum wire bonding, excellent SMT solderability, fine-pitch assembly, and multiple reflows. It is widely recognized as the“universal finish”for high-reliability microwave and RF PCBs, ideal for aerospace, test, and communication products.

4.4 Application Versatility

This TMM10 high frequency PCB is purpose-built for:

• Satellite communication systems
• GPS antennas & patch antennas
• Dielectric polarizers & lenses
• High-frequency chip testers
• RF/microwave circuitry, power amplifiers, filters, couplers
• Precision instrumentation & aerospace RF modules

4.5. Conclusion

This 2-layer Rogers TMM10 PCB with ENEPIG represents a premium solution for professional high-frequency applications. It delivers stable dielectric properties, low loss, excellent thermal reliability, fine-line capability, and universal assembly compatibility. Backed by IPC-Class-2 quality and full electrical test, it ensures consistent performance in satellite communication, precision antennas, chip testing, and advanced RF systems. Rogers TMM10 CCL serves as the foundation of its outstanding performance, merging ceramic-like electrical stability with thermoset process practicality.

5. Rogers TMM10 CCL (Copper Clad Laminate) Technical Knowledge

5.1 Material Overview

Rogers TMM10 is a ceramic-filled hydrocarbon thermoset polymer composite designed for high-reliability stripline and microstrip circuits. It integrates the high Dk and stability of ceramic substrates with the processability of thermoset resins, avoiding the high cost, brittleness, and complex processing of pure alumina and the creep, cold flow, and special surface treatment requirements of PTFE. TMM10 supports standard PCB processes and enables stable, high-performance microwave circuits with excellent PTH reliability.

5.2 TMM10 Properties

5.3 Structural & Processing Advantages

1)Thermoset matrix: No softening at soldering temperatures; supports reliable wire bonding without pad lifting or substrate deformation.

2)CTE matched to copper: Reduces thermal stress; ensures robust PTHs for long life under cycling.

3)Chemical resistance: Withstands etching, plating, and cleaning chemicals; reduces fabrication damage.

4)No sodium naphthenate treatment: Simplifies metallization vs. PTFE, lowering cost and improving yield.

5)Standard PCB compatibility: Supports drilling, plating, soldermask, silkscreen, and ENEPIG/ENIG without special equipment.

5.4 Typical Thickness & Cladding Options

*Standard thicknesses: 0.381 mm (15 mil), 0.635 mm, 0.762 mm, up to 12.7 mm (500 mil), tolerance±0.038 mm.

*Standard copper cladding: ½oz (18μm), 1 oz (35μm), 2 oz (76μm); custom heavy copper or unclad available.

*Panel sizes: 457 mm×305 mm, 457 mm×610 mm; custom sizes supported.

5.5 Material Comparison & Positioning

TMM10 fills the gap between high-Dk ceramic substrates and flexible PTFE laminates. It offers better thermal stability and mechanical strength than pure PTFE, while being easier and cheaper to process than alumina. It is widely used to replace alumina in many RF/microwave products, balancing performance, cost, and manufacturability.

5.6 Recommended Applications

• Satellite communications & navigation antennas
• High-reliability microwave amplifiers & filters
• Dielectric polarizers, lenses, and high-frequency sensors
• Chip testers & precision RF instrumentation
• Aerospace, military, and industrial RF modules