Introduction
Hello, and welcome back to our channel. I am Jane, the regional sales manager for Bicheng PCB. Today, we will be discussing the TC600 microwave PCB, which is a type of enhanced thermal conductivity printed circuit board.

Rogers TC600 laminate is woven fiberglass reinforced, ceramic filled, PTFE-based composite which is designed to provide enhanced heat-transfer through “Best-In-Class” thermal conductivity, while reducing dielectric loss and insertion loss. The increased thermal conductivity provides several benefits, including higher power handling, improved device reliability, and reduced hot spots.

Let's take a closer to learn the properties of TC600 material, which include its electrical, thermal, mechanical, and physical properties.

TC600 Typical Properties
Firstly, the dielectric constant of TC600 is 6.15 at 1.8 MHz when tested using the resonant cavity method. Additionally, when tested using IPC TM-650 at 10 GHz, the dielectric constant is also 6.15 as well.

The dissipation factor is 0.0017 at 1.8 GHz and 0.002 at 10 GHz when tested using IPC TM-650.

The absolute value of temperature coefficient of dielectric constant (TCDk) is 75 ppm/ºC, which indicates that the dielectric constant of TC600 remains stable over a wide range of temperatures.

In terms of electrical properties, TC600 has good volume resistivity and surface resistivity, with an electrical strength of 850 Volts/mil or 34 Kv/mm. The dielectric breakdown is 62 kilovolts, and the arc resistance is greater than 240 seconds.

When it comes to thermal properties, there are three parameters to consider: Td, time-to-delamination, and CTE. The decomposition temperature of TC600 is greater than 512 °C, and the T260, T288, and T300 values are all greater than 60 minutes. The TC600 laminate also has a low Z-Direction CTE, which provides unsurpassed plated through hole reliability.

The mechanical properties of TC600 are reflected in a peel strength of 10 lb/in, a Young's modulus of 280 kpsi, a flexural strength of 9.6 kpsi, and a tensile strength of 5.0 kpsi.

In terms of physical properties, TC600 has extremely low water absorption of 0.02%, with a density of 2.9 g/cm³ and a high thermal conductivity of 1.1 W/mK in Z direction.

The specific heat capacity is 0.94 J/gK, and it has a 94V0 flammability rating.

The outgassing property of total mass loss is as low as 0.02%.

PCB Capability (TC600)
We offer various layer counts, including single-sided, double-sided, multilayer, and hybrid PCBs. The dielectric thickness options include 10mil (0.254mm), 20mil (0.508mm), 30mil (0.762mm), and 60mil (1.524mm), allowing for flexibility in designing PCBs for different purposes.

Our PCBs are available with copper weights of 1oz (35µm) and 2oz (70µm), which can be chosen based on specific design requirements.

The maximum size for our PCBs is ≤400mm X 500mm, which can accommodate a wide range of applications.

We offer a variety of solder mask colors, including green, black, blue, yellow, red, and more.

Additionally, our surface finish options include immersion gold, hot air soldering level (HASL), immersion silver, immersion tin, bare copper, OSP, pure gold plated, and others, providing a range of choices for the final finish of the PCB.

A Piece of TC600 PCB
Displayed on the screen is a 30mil TC600 microwave printed circuit board (PCB) featuring a blue solder mask and immersion silver on pads.

TC600 PCBs are ideally suited for a variety of applications, including power amplifiers, filters and couplers, microwave combiners and power dividers, small footprint antennas, digital audio broadcasting (DAB) antennas, and GPS and hand-held RFID reader antennas, among others.

Conclusion
When it comes to high power RF signal applications, TC600 printed circuit boards (PCBs) are designed to deliver improved thermal management.

TC600 boards are characterized by a unique combination of features that include high thermal conductivity, low loss tangent, low coefficient of thermal expansion (CTE), and world-class temperature phase stability.

As a result, TC600 boards enable enhanced performance and reliability in high power applications.

In addition to power amplifiers and other high power designs, TC600 circuit boards are an excellent option for passive components such as couplers and filters that require critical higher power capabilities and are sensitive to dielectric constant changes with temperature.

Thank you for reading today's episode. We hope this information was helpful, and we look forward to seeing you again next time.