At SAS Advanced Limited, we understand how important high speed PCB design is in today's fast-paced electronics world. Whether it's for telecom, computing, automotive, or aerospace applications, designing PCBs that handle high frequency signals properly is key to building reliable and high-performing devices.

What is High Speed PCB Design?
High speed PCB design deals with circuit boards carrying signals at very high frequencies often above 100 MHz and up to several GHz. At these speeds, how the PCB is laid out physically affects the quality of the signal, making good design practices essential.

Why Does It Matter?
Signal Quality: High speed signals can easily get distorted or lost if the PCB isn't designed well.
Reducing Interference: Good design minimizes electromagnetic interference (EMI), keeping your device and others around it working properly.
Better Performance: Ensures your device runs smoothly with fast and error-free data transfer.
Heat Management: Fast signals and high power can generate heat, so managing this is critical.

Key Principles We Follow
Controlled Impedance: We design traces with precise width and spacing to keep signal reflections low.
Layer Stack-Up: Using multiple layers with dedicated ground and power planes helps keep signals clean.
Short and Direct Traces: Minimizing trace length avoids delays and signal loss.
Differential Pair Routing: For signals like USB and HDMI, we route matched pairs to reduce noise.
Minimizing Crosstalk: We separate sensitive signals and use grounding techniques to prevent interference.
Proper Termination: Adding resistors where needed to avoid signal reflections.
Managing Vias and Stubs: Reducing unnecessary vias to keep signal paths smooth.
Stable Power Delivery: Using decoupling capacitors and proper plane design to ensure reliable power.

Choosing the Right Materials
For very high frequencies, standard materials like FR-4 aren't enough. We use advanced laminates with low signal loss to keep your signals strong and clean.

Using Simulation Tools
Before manufacturing, we simulate the PCB to predict and fix any issues with signal integrity or EMI, saving time and costs.

Latest Trends
We keep up with innovations like AI-assisted design, embedded components inside PCBs, high-density interconnect (HDI) technology, and advanced thermal management solutions to deliver top-quality designs.

Conclusion
At SAS Advanced Limited, we apply these high speed PCB design principles to build reliable, high-performance electronics. Good PCB design means better products and satisfied customers.

Contact us today to learn how we can help with your next high speed PCB project.