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TRF-45 High Frequency PCB

Introduction

Hello everyone! Welcome back to our channel. Today, we're diving into the exciting realm of high-frequency printed circuit boards (PCBs) and exploring a remarkable new generation of low-loss, thermally-stable options: TRF-45 PCB.

TRF-45 laminated materials mark an exciting advancement in the field of low-loss and thermally-stable high frequency materials, developed by Taconic Advanced Dielectric Division. With TRF-45, Taconic combines the benefits of woven-glass reinforcement for enhanced dimensional stability with their expertise in ceramic technology, resulting in a material that exhibits exceptional properties.

One of the key advantages of TRF-45 is its low and consistent Z-axis expansion across a wide range of temperatures, including soldering conditions. This ensures reliable performance and stability even in demanding thermal environments.

Let's take a closer look at the properties offered by TRF-45

Data sheet

The dielectric constant of TRF-45 at 10 GHz, determined by the IPC-TM-650 2.5.5.6 test method, is 4.5. This value signifies its ability to store electrical energy in an electromagnetic field. Additionally, the dissipation factor at 10 GHz is 0.0035, indicating low energy loss during signal transmission.

TRF-45 exhibits excellent resistance to moisture absorption, as demonstrated by its moisture absorption rate of ≤0.06%, tested according to IPC-TM-650 2.6.2.1. This characteristic ensures the material's stability and reliability in various environmental conditions.

The surface resistivity of TRF-45, measured using IPC-TM-650.2.5.17.1, is 3.0 x 10^7 Mohm, indicating its high electrical insulation properties. Furthermore, the volume resistivity, determined by IPC-TM-650 2.5.17.1, is 8.0 x 10^7 Mohm/cm, highlighting its effectiveness in preventing current leakage.

TRF-45 exhibits exceptional flexural strength in both lengthwise and transverse directions. As per IPC-TM-650.2.4.4, the flexural strength in the lengthwise direction is 17000 lbs/in (177 N/mm^2), while in the transverse direction, it is 15000 lbs/in (103 N/mm^2). This property ensures the material's ability to withstand mechanical stress and maintain structural integrity.

The peel strength of TRF-45, determined by IPC-TM-650 2.4.8 (Thermal Stress), is >8 lbs/in (>1.4 N/mm). This high peel strength indicates its strong adhesion properties, making it suitable for applications where bonding is crucial.

TRF-45 exhibits a thermal conductivity of 0.43 W/m/K, as measured by ASTM F 433. This property enables efficient heat dissipation in applications that require thermal management.

The coefficient of thermal expansion (CTE) values of TRF-45, determined by ASTM D 3386 (TMA), are 9 ppm/℃ in X and Y directions, and 40 ppm/℃ in Z direction. This exceptionally low CTE in the Z-axis direction minimizes the risk of delamination and ensures dimensional stability, making it well-suited for applications where reliability and structural integrity are paramount.

TRF-45 Typical Values
Property	Test Method	Unit	TRF-45 Value
Dielectric Constant @ 10GHz	IPC-TM-650 2.5.5.6	/	4.5
Dissipation Factor @ 10GHz	IPC-TM-650 2.5.5, 5.1(m)	/	0.0035
Moisture Absorption	IPC-TM-650 2.6.2.1	%	≤0.06
Surface Resistivity	IPC-TM-650.2.5.17.1	Mohm	3.0 x 107
Volume Resistivity	IPC-TM-650 2.5.17.1	Mohm/cm	8.0 x 107
Flexural Strength (Lengthwise)	IPC-TM-650.2.4.4	lbs / in (N/mm2)	17000 (177)
Flexural Strength (Transverse)	IPC-TM-650 2.4.4	lbs / in (N/mm2)	15000 (103)
Peel Strength	IPC-TM-650 2.4.8 (Thermal Stress)	lbs / in (N/mm)	>8 （>1.4）
Thermal Conductivity	ASTM F 433	W/m/K	0.43
CTE (x)	ASTM D 3386 (TMA)	ppm/℃	9
CTE (y)	ASTM D 3386 (TMA)	ppm/℃	9
CTE (z)	ASTM D 3386 (TMA)	ppm/℃	40
Flammability	?UL-94		V-0

Our PCB Capability (TRF-45)

TRF-45 is available in various layer counts, including Double Sided PCB, Multilayer PCB, and Hybrid PCB configurations. This flexibility allows designers to choose the most suitable option based on their project requirements and complexity.

To accommodate different current-carrying needs, TRF-45 offers multiple copper weight options, including 1oz (35 μm) and 2oz (70μm). This ensures optimal conductivity and robust performance, regardless of the application's power demands.

Moreover, TRF-45 provides a wide range of PCB thicknesses, including 8mil (0.20mm), 16mil (0.41mm), 24mil (0.61mm), 32mil (0.81mm), 40mil (1.02mm), 64mil (1.63mm), 120mil (3.05mm). This allows for precise customization, catering to specific design considerations and mechanical constraints.

TRF-45 supports PCB sizes up to 400mm X 500mm, providing ample space for intricate circuitry and accommodating larger-scale projects. Whether it's a compact device or a more extensive system, TRF-45 can meet the size requirements of diverse applications.

We can offer various solder mask colors, including Green, Black, Blue, Yellow, Red, and more. This allows for visual customization and easy identification of circuit elements.

At last, the surface finish options for TRF-45 are extensive, offering choices such as Immersion gold, HASL, Immersion silver, Immersion tin, OSP, Bare copper, ENEPIG, and Pure gold. These surface finishes provide excellent protection against oxidation, facilitate soldering, and ensure optimal performance in different environments.

PCB Capability (TRF-45)
PCB Material:	Ceramic filled PTFE
Designation:	TRF-45
Dielectric constant:	4.5
Dissipation Factor	0.0035 10GHz
Layer count:	Double Sided PCB, Multilayer PCB, Hybrid PCB
Copper weight:	1oz (35µm), 2oz (70µm)
PCB thickness:	8mil (0.20mm), 16mil (0.41mm), 24mil (0.61mm), 32mil (0.81mm), 40mil (1.02mm), 64mil (1.63mm), 120mil (3.05mm)
PCB size:	≤400mm X 500mm
Solder mask:	Green, Black, Blue, Yellow, Red etc.
Surface finish:	Immersion gold, HASL, Immersion silver, Immersion tin, OSP,Bare copper, ENEPIG, Pure gold etc..

TRF-45 PCB and Typical Applications

Displayed on the screen are two types of 32mil TRF-45 high frequency PCB with coating of immersion gold and immersion silver.

TRF-45 PCB finds its typical applications in satellite radio antennas, RFID antennas, GPS antennas etc.

Final

TRF-45 can undergo standard manufacturing methods such as shearing, drilling, milling, and plating, similar to PTFE woven fiberglass materials. As a result, it can be mass-produced, leading to cost reduction and increasing its market acceptance.

OK. This conclude today’s episode. Thanks for reading. See you next time.