Skip to main content



8 Chapters
8 Chapters

Complex electronics require increased component counts on ever-shrinking PCB designs. The result is high-density and high-frequency of circuit operation. This High-Speed PCB Design Guide will challenge your PCB design skills.

Download the guide to learn about:

  • What leads to signal integrity issues
  • Transmission lines and controlled impedance
  • Selecting high-speed PCB materials
  • High-speed layout guidelines




To execute a successful design for a circuit board, one has to first determine if it is in fact a high-speed design. If it is a high-speed design, then the PCB designer would need to take special care during the design process; and we would call them high-speed design considerations – the main subject of this guide.

In most cases, based on their past experience, the design engineering team may determine the nature of the design.

In order to determine if the PCB requires high-speed design, we follow a two-step process:

First, the designer must state the values of one or more of the following parameters:

  1. The maximum frequency (Fm)content in the highest speed signals in the circuit.
  2. The fastest rise (or fall) time (Tr) of the digital signals in the circuit.
  3. The maximum data transfer rate (DTR) applicable for signals in the circuit.

Second, you need to determine the wavelength (λm) on the PCB of the electrical (electromagnetic to be precise) signals for a given frequency, in our case Fm.




  • Factors that contribute to signal integrity degradation
  • Errors to avoid when designing for controlled impedance
  • High-speed PCB layout design guidelines, including:
    • Component selection and placement
    • High-speed routing strategy and signal proximity
Design Guide Form Header Image

Sierra Circuits PCB Certifications & Registrations

Sierra Circuits holds IPC-6012, IPC-6013, IPC-6015, IPC-6018, and IPC-A-600 PCB certifications
Sierra Circuits is ISO 9001:2015 certified for Military and Aerospace PCBs
Sierra Circuits is ISO 13485:2016 certified for Medical Device PCBs
Sierra Circuits is ITAR Registered
Sierra Circuits holds MIL-PRF-55110 & MIL-PRF-31032 PCB certifications
Sierra Circuits is certified by the National Institute of Standards and Technology
Sierra Circuits is REACH Compliant for PCB certifications
Sierra Circuits is RoHS Compliant for PCB certifications
Sierra Circuits holds PCB certifications for Flex, Rigid-Flex, and Rigid PCBs by the Underwriters Laboratory



Sierra Circuits has been trusted by innovators as a go to resource for best in class circuit boards since 1986.

Certification Logo
Certification Logo
Certification Logo
Certification Logo
Certification Logo
Certification Logo
Certification Logo
Certification Logo


Since 1986, Sierra Circuits has faithfully served more than 20,000 PCB designers and engineers with PCB design, manufacturing and assembly and High-Density Interconnect technology.

Sierra Circuits handles all aspects of PCB production. From PCB layout and design, to assembly and manufacturing—we provide our customers with unprecedented quality, reliability, and a single point of support.

Advanced PCBs
PCBs manufactured and assembled in the United States



Start a Secure Quote


24 hours a day, 7 days a week.

Call us: +1 (800) 763-7503
Email us: through our Customer Care form

澳洲10开奖结果计划 极速赛车计划app 秒速赛车计划5码一期 澳洲5历史开奖数据 SG飞艇号码