PCB Design and SI Analysis - Advanced Layout Solutions

Advanced Layout Solutions is a leading UK based PCB design consultancy with an expert Signal Integrity Analysis service using leading-edge tools.


There is a growing trend to outsource engineering tasks to centres of excellence, and PCB design and signal integrity analysis are good examples. The high costs of CAD tools, maintenance and staff training make a good case. However, handing over your latest concept is not a decision to be taken lightly.


At Advanced Layout Solutions (ALS) your design is in safe hands. We have a long history working with some of the biggest names in the electronics industry, and have vast experience working with engineers and project managers who favour the ‘outsource’ model.


Our broad customer base that spans consumer electronics, broadcast, data storage/networking, military/aerospace, motor sport and medical is clear evidence of just how effective the outsource model is.


Since 1995, our team has completed over 8000 projects and our services cover many aspects of design ...  and a range of technologies from simple two-layer PCBs to flex PCBs, backplanes and complex high density boards.


To find out how your projects can benefit from our services, contact us us today!



  Value Added Expand...

You will find other PCB design bureaus... but you will not find another PCB design bureau like Advanced Layout Solutions.

We provide PCB design AND have unmatched expertise in signal integrity analysis supported by leading-edge simulation tools. Used in combination, we can not only design a great printed circuit board, but perform verification that your design will work electrically too. For clients who depend on their high-speed digital designs working on the first iteration, this approach is absolutely vital.

Furthermore, our close relations and partnerships with PCB fabricators and assembly houses mean that we can offer a complete prototype procurement service, for clients who wish to maximise the benefits of outsourcing.

  What is Signal Integrity Analysis? Expand... 

Preserving signal integrity (SI) at the PCB level has become increasingly important due to the faster switching rates and lower noise margins common in today's integrated circuits.

The demand for SI analysis has given rise to many new EDA tool offerings, including Cadence Sigrity, Mentor Graphics Hyperlynx, Keysight Technologies ADS and ANSYS SIwave. These powerful tools allow the user to accurately predict how a printed circuit board will perform once assembled and running high-speed signalling. In the quest for 'right-first-time' design, the use of signal integrity analysis tools and techniques is a must for all high-speed digital designs.

ALS can offer SI analysis as part of the PCB design flow, or analyze your existing PCB layout design - from any tool flow.

Visit our sister website, dedicated to signal integrity analysis

  What Designs Require Signal Integrity Analysis? Expand... 

SI analysis was often considered necessary for designs employing sub-nanosecond edge rates. This rule of thumb means it is necessary for virtually all digital designs today. However, good examples of candidates for SI analysis are:

High-speed memory controllers/interfaces

Memory technologies such as double data rate DRAM (DDR3, DDR4, GDDR, etc) require great care in their implementation. SI analysis ensures that matched propagation delays, jitter, crosstalk and signal quality requirements are all preserved. The analysis also allows the exploration of different routing styles and termination scheme to achieve the best possible performance. Where applicable, memory vendors, such as Micron, Samsung, etc, even provide separate IBIS models describing the component's behaviour under different on-die termination (ODT) settings.

Multi-Gigabit serial links

High-speed serial links have gained popularity in recent years as a replacement for wide source-synchronous buses (the most obvious example being the replacement of PCI with PCI-Express) . The high-speed serialiser/deserialiser (SERDES) transceivers required to support these serial links are now common place in off-the-shelf FPGAs. However, these links operate in the gigabit-per-second range and the channel must be able to carry small signals well into the tens of GHz range. At these frequencies losses from vias, trace lengths, trace widths, dielectrics, etc can all have an effect on signalling. For this type of analysis tools are required that can simulate the channel in the frequency domain and predict the bit-error rates (BERs) likely to be suffered by the channel.  




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