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Thought Leadership
An Overview Of PCB Outer Layer Processing
Expert Kella Knack describes in detail the fabrication of the PCB outer layer. Read and learn about how different vias are formed and the steps involved in the multilayer build-up process.
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Arduino Portenta H7 Brings Dev Boards to Production Grade
When I hear the name “Arduino,” I don’t usually think of production-grade hardware. I’m not talking down to the folks at Arduino, they’ve done an excellent job at invading the educational and proof-of-concept development niches, to the extent that other hardware platforms simply haven’t been able to catch up. Arduino boards are an excellent choice for low volume functional prototyping and embedded software development. But what about production
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GaN MMIC Power Amplifier Market Outlook and Applications
The next smartphone you buy is likely to include a GaN MMIC power amplifier for wireless communication. What was formerly relegated to academia is now seeing fast commercialization. These developments aren’t limited to smartphones, although this is expected to account for a significant portion of the growing RF components market. High frequency radar in automotive, aerospace, and even robotics is expected to be a significant driver of further GaN
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Thermal Relief Via Design for Proper Impedance
Following DFM guidelines is a critical requirement for ensuring high yields and defect-free boards during fabrication. Most DFM guidelines are well-grounded and do not generally interfere with signal integrity. In the event that they do, most EDA tools include features that can help ensure you won’t sacrifice signal integrity for manufacturability, and the two design aspects often go hand-in-hand. One aspect of routing/layout, signal integrity
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Designing for Testability in PCB Design: Ensure High Yield and Quality
If you remember your days in school, then you probably remember the feeling of happiness and celebration when you pass a big exam. You’ll feel the same sense of adulation when your board spin passes a barrage of pre and post assembly tests, but a complex design might not reach that stage unless you implement the right design for testability methods. There are some simple steps that can help your manufacturer identify and quickly implement
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A PCB Layout Review Checklist Gets You to Manufacturing Quickly
A PCB Design Review Checklist Gets You to Manufacturing Quickly
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How to Create a Test Point Schematic Symbol and Footprint in Altium Designer
Bare board testing is like a moment of truth, where your fabricator and your design team determines whether a board passes inspection. Some basic test fixtures and testing points should be indicated in your schematic and your PCB layout, especially when they are critical for evaluating board functionality. So what is the best way to do this? You might rely on your manufacturer to assign test points, but for critical circuit blocks, you should
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Decoupling Capacitor and Bypass Placement Guidelines
Power integrity problems are normally viewed from the perspective of the power supply, but looking at the output from ICs is just as important. Decoupling and bypass capacitors are intended to compensate for power fluctuations seen on the PDN, which ensures your signal levels are consistent and a constant voltage is seen at the power/ground pins on an IC. We’ve compiled some important bypass and decoupling capacitor design guidelines to help you
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PCB Design for Hyperspectral Sensor and Imaging Systems
What was once confined to the most advanced aerospace applications is now commonplace enough to be found in our everyday lives. Insulation, CCDs, air purifiers, and other technologies wouldn’t be possible without a robust space program in the 1960s and 1970s. One less well-known technology that deserves such attention is remote sensing, which has been used casually and for scientific research since the first American and Russian space flights
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NB-IoT Antenna Design and Layout for Your PCB
With all the possible wireless communication protocols available for use in a mobile device, it can be difficult to keep them straight. Narrowband IoT (NB-IoT) and LTE-M are two low-bandwidth protocols that provide remote monitoring capabilities over several miles of distance. While the data rates are quite low in both protocols, these protocols are excellent choices for lightweight embedded systems, such as small sensor arrays, industrial or
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Is it Simultaneous Switching Noise or Crosstalk?
How can you distinguish simultaneous switching noise and crosstalk? Take a look at the difference between these two signal integrity problems in this article.
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Impedance Matching Network S-Parameters Simulation
Here’s how you can calculate the S-parameters for your antenna impedance matching network in Altium Designer.
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Antenna Impedance Matching Network Circuit Simulation in Altium Designer
Need to simulate an antenna impedance matching network? The SPICE tools in Altium Designer can help.
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Analog Signal Bandwidth and its Relation to Power Integrity
Here’s how your analog signal bandwidth interacts with your PDN, and how it affects power integrity.
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Designing for Antenna Isolation in Your Wireless System
Antenna isolation is designed to prevent interference between antennas and ensure diversity in wireless systems.
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Enterprise IoT Challenges for PCB Designers in 2020
Enterprise IoT became one of the biggest tech buzzwords in 2019, with many analysts promising improvements in business efficiencies and profits simply by connecting everything in the office. As time goes on, real problems that can be solved by connecting business assets start to become clear, and practical opportunities for innovation and problem solving can be identified. I would argue we’re starting to move away from the 1990s-equivalent age of
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USB Charger Project in Altium Designer: Part 2
In a previous blog post, I showed the process for building a schematic for a custom USB charger board using Altium Designer. This board requires a small number of components and some particular attention to the USB power supply design/decoupling networks, but aside from this it’s quite easy to build out the connections you need for the USB A connectors. Here, I’ll show the strategy for translating this schematic into a compact board with a small
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