What circuit boards do we do? (31) TLY-5Z High Frequency PCB

Introduction

TLY-5Z laminates are advanced composite materials blending glass-filled PTFE with woven fiberglass reinforcement. This glass-filled structure is specifically designed for low-density applications, such as aerospace, where minimizing weight is crucial. These laminates offer exceptional dimensional stability unattainable with unreinforced PTFEs. Their low-density composition results in minimal Z-axis expansion, a characteristic not typically found in PTFE-rich composites. Compared to traditional low dielectric constant PTFE composites, TLY-5Z demonstrates superior thermal stability against z-axis expansion-induced stress on plated through holes.

Features

Following the introduction above, we will delve into the specific features of TLY-5Z as defined by the IPC standard.

The material possesses a specific gravity of 1.92 g/cm³, in accordance with IPC-650 2.3.5.

At 10 GHz, the dielectric constant is recorded at 2.20, with a tolerance of ±0.04, as specified in IPC-650 2.5.5.5.1.

Moreover, the dissipation factor at this frequency stands at 0.0015, as outlined in IPC-650 2.5.5.5.1..

The coefficient of thermal expansion (CTE) for TLY-5Z is 30 ppm/°C in the X direction and 40 ppm/°C in the Y direction, within the temperature range of 25°C to 260°C, as detailed in IPC-650 2.4.41.

TLY-5Z exhibits half the thermal expansion of PTFE-rich substrates, enhancing drilling capabilities and enabling thermal cycling. Ground stitching along transmission lines can be effortlessly achieved, ensuring thermal reliability.

The material demonstrates a moisture absorption rate of just 0.03%, according to IPC-650 2.6.2.1, and holds a UL-94 flammability rating of V-0.

PCB capability

In our PCB capabilities with TLY-5Z, we offer various options to cater to your specific needs:

We can produce Single Sided, Double Sided, Multilayer, and Hybrid PCBs.

Choose from copper weights of 1oz (35 µm) or 2oz (70µm) based on your requirements.

Laminate thickness options include 10mil (0.254mm), 20mil (0.508mm), 30mil (0.762mm), and 60mil (1.524mm).

PCB sizes up to 400mm X 500mm are supported.

Select from a range of solder mask colors such as Green, Black, Blue, Yellow, Red, and more.

Various surface finish options are available including Bare Copper, HASL, ENIG, Immersion Silver, Immersion Tin, ENEPIG, OSP, and Pure Gold Plated, ensuring a finish that meets your needs.

Applications

TLY-5Z PCBs are commonly utilized in aerospace components, lightweight antennas for aircraft, RF passive components etc.