One company known to offer top quality copper clad laminates is Taiwan Union Technology Corporation (TUC). As you may already know, copper clad laminates function as the base material for a printed circuit board. Furthermore, TU-872 SLK utilizes regular woven E-glass as the reinforcing material. This product also comes through copper clad lamination on either just one or the two sides of the reinforcing material after resin soaking.
In this article, we’ll discuss what really characterizes the high speed low loss TU-872SLK.The relevant information is available for pcb design engineers to refer to in the selection of materials, And QFPCB offers the best services when it comes to the TU-872 SLK PCB Materials, so you can also call QFPCB to discuss.
What is the high speed low loss TU-872 SLK?
TU-872 SLK is based on a high performance modified epoxy FR-4 resin. This material is reinforced with regular woven E-glass and designed with low dielectric constant and low dissipation factor for high speed low loss and high frequency multilayer circuit board application. The material is suitable for environmental protection lead free process and also compatible with FR-4 processes. It also exhibit excellent moisture resistance, improved CTE, superior chemical resistance, thermal stability, CAF resistance, and toughness enhanced by an allyl network forming compound.
Moreover, the high speed low loss TU-872 SLK finds application in various fields such as radio frequency, high-frequency measuring instruments, modules, high-speed networks, and computing equipment.
The features of the high speed low loss TU-872 SLK?
Performance and Processing Advantages
>Excellent electrical properties
>Dielectric constant less than 4.0
>Dissipation factor less than 0.010
>Stable and flat Dk/Df performance
>Compatible with modified FR-4 processes
>Excellent moisture resistance and Lead Free reflow process compatible
>Improved Z-axis thermal expansion
>Anti-CAF capability
>Superior dimensional stability, thickness uniformity and flatness
>Excellent through-hole and soldering reliability
Industry Approvals
>IPC-4101E Type Designation : /29, /99, /101, /126
>IPC-4101E/126 Validation Services QPL Certified
>UL Designation – ANSI Grade: FR-4.0
>UL File Number: E189572
>Flammability Rating: 94V-0
>Maximum Operating Temperature: 130°C
Applications
>Radio frequency
>Backpanel, High performance computing
>Line cards, Storage
>Servers, Telecom, Base station
>Office Routers
What are the Similarities Between the high speed low loss TU-872 SLK and the high speed low loss TU-872 LK?
As previously mentioned, both the high speed low loss TU-872 LK and the high speed low loss TU-872 SLK are closely interconnected. They exhibit identical thermal and mechanical properties, encompassing a low coefficient of thermal expansion, high glass transition temperature, minimal dissipation factor, and dielectric constant among other attributes.
Furthermore, their loss tangent (RC50%) and applications are the same, which includes base stations, high frequency measuring instruments and modules, and high speed networking equipment and computing.
What are the Differences Between the high speed low loss TU-872 SLK and the high speed low loss TU-872 LK?
The high speed low loss TU-872 LK and the high speed low loss TU-872 SLK are closely interconnected, yet they exhibit discernible disparities, particularly in their electrical characteristics.
We can see that permittivity (RC50%) at 1GHz (SPC method/4291B), 5GHz(SPC method) and 10GHz(SPC method), the values of both vary. For the high speed low loss TU-872 LK, the values are 4.0/3.8, 3.8 and 3.8 respectively. and the high speed low loss TU-872 SLK has its values as 4.0/3.8, 3.9 and 3.8 respectively.
Furthermore, the X and Y axis exhibit a coefficient of thermal expansion (CTE) ranging from 12 to 15 ppm/℃. In contrast, the CTE value for the z-axis varies between materials. Specifically, we observed a z-axis value of 2.5% for the high-speed low loss TU-872 LK material, while the other material, high-speed low loss TU-872 SLK, displayed a slightly lower z-axis value of 2.3%.
Additionally, it is worth noting that the high-speed low loss TU-872 SLK material demonstrates a reduced water absorption rate compared to its counterpart. The water absorption rate was measured at 0.15% for the high-speed low loss TU-872 LK and at 0.13% for the high-speed low loss TU-872 SLK material.
This encompasses virtually all the pertinent information regarding the high speed low loss TU-872 SLK. Take ample time to peruse repeatedly in order to fully comprehend the offerings of this material.
