Our New 2-Layer High-Frequency TMM4 PCB is Here!

We’ve just shipped our newest 2-layer high-frequency PCB, made with Rogers TMM4 materials. This board is designed to handle demanding RF and microwave applications. It’s reliable, durable, and made with precision. Whether you’re designing for satellite communication, GPS systems, or power amplifiers, this PCB is a perfect choice.

Let me walk you through everything you need to know about this amazing PCB.

What’s in the PCB?

This PCB was carefully designed with high-quality materials and strict attention to detail. Here’s what it’s made of:

• Base Material: Rogers TMM4, a material known for its high reliability in microwave circuits.
• Layers: 2.
• Size: Each board is 45mm x 54mm, with a tolerance of +/- 0.15mm.
• Trace/Space: The minimum trace width is 4 mils, and the minimum spacing is 6 mils.
• Vias: No blind vias here. The smallest hole is 0.3mm, and it’s plated with 20 μm of copper for strength.
• Thickness: The final board thickness is 1.3mm.
• Copper Weight: 1oz (1.4 mils) on the outer layers.
• Surface Finish: Immersion Gold (ENIG) was used. This helps with soldering and prevents corrosion.
• Solder Mask and Silkscreen:
  • The top side has a blue solder mask with a white silkscreen for easy labeling.
  • The bottom side has no solder mask or silkscreen.

Before shipment, every board was tested 100% electrically to ensure it works perfectly.

How the Layers are Stacked

This is a 2-layer rigid PCB, built for high-frequency performance. Here’s the stackup:

• Top Copper Layer: 35 μm.
• Core Material: Rogers TMM4, 1.27mm thick (50 mils).
• Bottom Copper Layer: 35 μm.

This stackup ensures signals stay strong and stable, even at high frequencies.

What’s Special About Rogers TMM4?

The Rogers TMM4 material is what makes this PCB so unique. It’s a blend of ceramic and thermoset polymer, designed specifically for microwave and RF applications. It has been chosen because it’s reliable and easy to work with, even in tough conditions.

Key Properties of TMM4:

1. The dielectric constant (Dk) is 4.50 ± 0.045. This means the material keeps signals stable.
2. The dissipation factor is only 0.0020 at 10GHz. This reduces signal loss.
3. It can handle heat. The decomposition temperature (Td) is 425°C.
4. It resists moisture, with an absorption rate between 0.07% and 0.18%.
5. The material is thermally stable, with a thermal conductivity of 0.7 W/mK.

Why Use This PCB?

This PCB has some great benefits. Here’s why it stands out:

1. High Reliability: The plated-through holes were designed to last. The material also resists damage from chemicals during processing.
2. Easy to Work With: This board doesn’t need any special manufacturing techniques. It works well with standard PCB processes.
3. Great for High Frequencies: The low dissipation factor and consistent dielectric properties make it ideal for RF and microwave circuits.
4. Durable: It’s designed to resist creep and deformation, even under stress or heat.
5. Environmentally Stable: Moisture and temperature changes won’t affect its performance.

Where Can It Be Used?

This PCB is perfect for many high-frequency applications. Here are some examples:

• Satellite Communication Systems: Great for transmitting and receiving signals.
• GPS Antennas: Reliable for navigation systems.
• Power Amplifiers: Handles high power without issues.
• Filters and Couplers: Works well for organizing and managing signals.
• Patch Antennas: Ideal for wireless devices.
• Chip Testers: Accurate and dependable for testing high-frequency chips.

How Was It Made?

We followed the IPC-Class-2 standard, which ensures high quality and reliability. The design files were supplied in Gerber RS-274-X format, which is widely accepted in the industry. Every PCB was tested electrically before shipment. This ensures there are no mistakes or defects.

Why Choose Us?

We’re proud of this PCB because it’s built with care and precision. We use only the best materials and the latest manufacturing techniques. This board is available worldwide, so no matter where you are, you can get your hands on it.

Order Your PCB Today

If you need a reliable, high-frequency PCB, this is the one for you. It’s perfect for RF and microwave applications and built to last. Contact us today to learn more or to place your order. We’re here to help you design and build the best products possible.