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SPI vs. I2C For Memory Access
Blog
SPI vs. I2C: How to Choose the Best Protocol for Your Memory Chips

One of the common implementations of SPI and I2C in a PCB layout is as a protocol for reading and writing to an external Flash memory. Flash chips are a very common component in embedded systems and can offer high capacities of non-volatile memory up to Gb values. When choosing a memory chip, you'll want to match the application requirements and functionality with the bus speed you need for read and write operations in your memory chip. There is also the matter of the type of Flash memory you'll need to access (NOR vs. NAND).

On-Demand Webinar
Tips & Tricks: Board Shape Creation

Being able to design a board in your ECAD environment doesn’t mean that it is manufacturable in real life. You have to make sure your CAD representation won’t have any problems in the real world by taking some precautions. For example, there are certain areas that need to be free of components and have specified clearances like your board edge. This webinar will help you get acquainted with the creation and modification of your board shape so that you can ensure manufacturability.

Blog
Is There an SPI Trace Impedance Requirement?

There is no SPI trace impedance requirement? The reality is that SPI lines only start to need impedance control when the length of the interconnect becomes very long. And because there is no specific impedance requirement in the bus, you have some freedom in channel design and termination. So what exactly qualifies as “very long” and when is some termination method needed? We’ll break it down in this article.

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How-To's
How to Remove Unused Pad Shapes

Unused pad shapes can cause distortion among other problems so it is best to exclude them from your designs. This video shows how to remove unused pad shapes.

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How to work with Layer Stack Manager
Stackup Presets and Templates

In this video, we will learn how to apply predefined layer stacks to the board, as well as how to save the layer stack file as a template.

The Skin Effect and EM Fields
Blog
The Skin Effect, Current Density, and the Electromagnetic Field

During this year's AltiumLive CONNECT event, I recall receiving an interesting question about the skin effect and the distribution of current due to the presence of ground in coplanar transmission lines. In this article, we'll look at the electric field around a transmission line carrying a signal, and how this might be impacted by the skin effect.

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How to create a PCB Footprint
Creating a PCB Footprint Assembly Drawing

If you need to create an assembly drawing of your PCB Footprint for your outjob files we can show you how in Altium Designer. We’ll walk through all the different options for your assembly drawing in your Draftsman document, how to create your assembly drawing and assign it designators.

Packaging for your PCBAs
Blog
What You Need for PCB Packaging and Shipping

When you get your PCBA back from an assembler, you’ll notice the packaging materials used to pack and ship the PCBA. Those materials are specific to electronics, and if you build products on behalf of clients, it’s important to know the packaging materials used for packing and shipping electronics. In this article I’ll show the main set of materials and equipment used to package electronics assemblies.

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How-To's
Using the ActiveBOM

Using the ActiveBOM: The Bill of Materials (BOM) contains a list of all the components with their designators, part numbers, values, and other parameters. An ActiveBOM manages the mapping from the design component (part) to the part that is purchased. This video describes how to use the ActiveBOM document to create an up-to-date list of components needed for your project.

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How to work with Layer Stack Manager
Using Back Drills in your Stackup

In this video, we will learn about Back Drilling technology, how to set up back drilling using the layer stack manager, and how to set up the Stub Length sizes for back drilling by specifying applicable nets using the Design Rules Editor.

PCB Output files
Blog
How to Make PCB Gerber Files in Altium Designer Step-by-Step

Once you've got your PCB layout finished and you're ready to start preparing for manufacturing, one of the critical steps is to create PCB Gerber files. When you're ready to create your Gerber files, you need the right set of CAM processor tools that can take data from your PCB layout. In this article, we'll guide you through this process of how to make PCB Gerber files and show some example tasks you might need to perform to generate them.

Component composition
On-Demand Webinar
Help Ensure The Best Designs With Component Management

There are many aspects to designing a PCB. One of the larger aspects has to do with managing your components. We all need components for our designs, but are those components in our library and designs up-to-date or even purchasable? These questions need to be answered before we can safely use them. Altium Designer® has several tools to help you manage the components in your libraries and designs.

Teardrops on Differential Pairs?
Blog
Should You Place Teardrops on Differential Pairs?

One of the major factors impacting reliability of a PCBA is the use of teardrops on traces in the PCB. Like many aspects of reliability, the considerations also span into the signal integrity domain, particularly as more high-reliability products require greater data handling capabilities and run at higher speeds. In this article, I’ll break down the issues present in teardrop usage on differential pairs and how these may affect impedance.

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How-To's
How to Customize The Properties Panel

How to Customize The Properties Panel: This video will go over how to customize the look and feel of the properties panel in Altium Designer. By being able to personalize your workspace you can greatly improve your efficiency

Embedded thumbnail for How to Create and Use Impedance Profiles
How to work with Layer Stack Manager
How to Create and Use Impedance Profiles

Using the Altium Designer Layer Stack Manager, we will show how to create impedance profiles for transmission lines and how to apply them to the circuit board using the PCB Rules and Constraints Editor.

Broken PCB
Blog
The High-Reliability PCBA Design and Test Challenge

High-reliability electronics must go through multiple rounds of testing and qualification to ensure they can withstand their intended operating environment. Designing to performance standards, whether the baseline IPC standards or more stringent industry standards, is the first step in ensuring a reliable circuit board. In this e-book, readers will gain a thorough look into PCB testing and analysis, starting from basic tests performed on bare boards and completed assemblies.

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How to create a PCB Footprint
Creating a PCB Footprint Courtyard

The courtyard is an essential piece when you want to create a PCB Footprint in Altium Designer. We’ll talk about what a courtyard is, how to create a courtyard, and how to format a courtyard correctly for your PCB footprint.

Where to place AC Caps on PCIe Lanes
Blog
AC Coupling Capacitors in PCIe Routing

Coupling capacitors find plenty of uses in analog applications and on differential protocols, acting essentially as high pass filters that remove DC bias carried seen on a signal. In the case of PCIe, there are a few reasons to place AC coupling capacitors on differential pairs beyond the fact that AC coupling capacitors are listed in the standard. In this article, we’ll look briefly at where to place coupling capacitors on PCIe links, as well as the reasons these are placed on PCIe links.

Embedded thumbnail for How to Edit Existing Tracks in Altium Designer
How-To's
How to Edit Existing Tracks in Altium Designer

This new design rule flags a violation when the creepage distance across non-conductive surface and edge regions of the board, between the targeted signals, is equal to or less than the specified Creepage distance.

Tuning dialog
Blog
Altium Designer 22.7 Update

We are happy to announce that the Altium Designer 22.7 update is now available. Altium Designer 22.7 continues to focus on improving the user experience, as well as performance and stability of the software, based on feedback from our users. Check out the key new features in the What's New section on the left side of this window!

Tag
Blog
The Role of Automation & Robotics in Wire Harness Assembly

Our new article highlights how automation and robotics are transforming wire harness assembly, improving efficiency, precision, and cost-effectiveness. Technologies like robotic wire handling and AI-driven testing are paving the way for smarter production. However, challenges like custom designs and high costs still persist.

Blog
Wiring for the Final Frontier: A Guide to Space-Grade Harness Design

Wiring harnesses are mission-critical in space systems, requiring strict adherence to ECSS-Q-ST-70-61C and NASA-STD-8739.4A. In "Wiring for the Final Frontier: A Guide to Space-Grade Harness Design", Kamil Jasiński explores key design principles, material selection, and testing to ensure reliability in extreme environments.

Blog
Ideal Rectifier Bridge

Read Marcin Lewandowski's article explaining how MOSFETs are replacing traditional diodes for reverse polarity protection. Step into the future of energy-efficient electronics!

Blog
Overview of the Gerber X3 File Format

Want to learn how the Gerber X3 file format simplifies data exchange by unifying assembly and fabrication details in a single file? This article explores the format and its role in streamlining PCB manufacturing.

Blog
Mastering EMI Control in PCB Design: How to Design PCBs for Low EMI

This article by Dario Fresu delves into effective techniques for designing PCBs to reduce electromagnetic interference (EMI). It covers key topics such as stackup selection, routing strategies, and grounding best practices, offering actionable insights for improved performance.

Blog
Happy Holidays!!!

Altium wishes you all the best this holiday season! May this time be filled with joy, laughter, and cherished moments with your family and friends. We also extend our warmest wishes for a Happy New Year 2025!

Tag
Embedded thumbnail for Pi Filter Formulas and Simulation Deep Dive
How-To's
Pi Filter Formulas and Simulation Deep Dive

Learn the essentials of Pi filters, including how to size, design, and simulate them in Altium Designer. Host Zach Peterson explains the design equations for Pi filters, discusses online tools for accurate component selection, and demonstrates real-time simulations in Altium Designer to visualize the effects of impedance mismatches.

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New in Altium Designer 25
True Donut Pad Shapes

Check out our brand-new short video showcasing an exciting improvement in the PCB design process. Altium Designer 25 now supports true donut pad shapes, enhancing both your routing and performance.

Embedded thumbnail for Modernizing Engineering Workflows: Altium Designer 25 and the Future of Concurrent Design - Recording Preview
New in Altium Designer 25
Modernizing Engineering Workflows: Altium Designer 25 and the Future of Concurrent Design - Recording Preview

Discover the new features in Altium Designer 25! This webinar recording highlights the Signal Analyzer by Keysight, advanced Wire Bonding capabilities, multi-board design enhancements, and more, showcasing how these tools can transform your PCB design process.

Embedded thumbnail for Dynamic Phase Matching and Tuning for Differential Pairs
New in Altium Designer 25
Dynamic Phase Matching and Tuning for Differential Pairs

Explore how dynamic phase matching for differential pairs works with the improved match length rule in Altium Designer. Learn key techniques in this quick tutorial!

Embedded thumbnail for Obey Rules and Auto-Shrinking Features
New in Altium Designer 25
Obey Rules and Auto-Shrinking Features

Discover how Altium Designer 25's Obey Rules and Auto-Shrinking features streamline routing, ensuring speed and precision while maintaining adherence to all design constraints.

Embedded thumbnail for Quickstart Guide: Single Layer PCB Design with Altium Designer 25
New in Altium Designer 25
Quickstart Guide: Single Layer PCB Design with Altium Designer 25

Transform your designs with the new Single Layer PCB Design feature in Altium Designer 25! Whether you're working on Rigid-Flex projects or creating simple, space-saving boards, this tool makes the process faster, smarter, and more efficient. Watch our guide now and unlock your next big innovation.

Embedded thumbnail for How to Design Bending Regions in Flex PCBs
How-To's
How to Design Bending Regions in Flex PCBs

Watch our latest video on bending regions in flex PCBs! This step-by-step guide will show you how to configure stack-ups, distinguish between flex and rigid regions, and troubleshoot common issues in 3D views.

Embedded thumbnail for LDO Regulator Essentials: From Basics to Advanced. Part V: Ripple Rejection
LDO Regulator Essentials
LDO Regulator Essentials: From Basics to Advanced. Part V: Ripple Rejection

The final part of the LDO Regulator Essentials series focuses on voltage ripple rejection in Low Dropout Regulators (LDOs). Our host Rafał Stępień explains how LDOs clean up DC supply waves, ensuring stable performance in power systems. This episode provides practical insights for optimizing sensitive designs.

Embedded thumbnail for Explore Routing Improvements in Altium Designer 25
New in Altium Designer 25
Explore Routing Improvements in Altium Designer 25

Discover Routing Improvements in Altium Designer 25. Learn about Dynamic Phase Matching, True Donut Pad Shape, and more in our latest video showcasing the powerful enhancements in our newest release.

Embedded thumbnail for Wire Bonding Shorts: Die Footprints
New in Altium Designer 25
Wire Bonding Shorts: Die Footprints

Check our new short video where Samer Aldhaher demonstrates the Wire Bonding feature in Altium Designer 25, including die-to-die and die-to-copper connections, multiple wire bonds, and pad rotation techniques.

Embedded thumbnail for Altium Designer 25: Collaboration at its Finest
New in Altium Designer 25
Altium Designer 25: Collaboration at its Finest

Altium Designer 25 focuses on enhancing collaboration for engineering teams with new tools like the SI Analyzer by Keysight, updated PCB CoDesign, MCAD and Ansys CoDesigners, and improved Simulation modules. This release also introduces Wire Bonding, Single Layer PCB, and performance upgrades for optimized PCB design workflows. Check our overview video about all the improvements in this release.

Embedded thumbnail for The Fastest Ways to Run a PCB BOM Review
How-To's
The Fastest Ways to Run a PCB BOM Review

Conducting a BOM review is crucial to prevent costly delays, obsolete components, and unforeseen sourcing challenges in your PCB project. Discover powerful tools like DigiKey, Octopart, and Altium 365’s BOM portal to simplify your review process and ensure you're selecting the best parts at optimal prices.

Embedded thumbnail for Quantum Systems uses Altium Designer and Altium 365 to build the future of Drones
Altium Stories
Quantum Systems uses Altium Designer and Altium 365 to build the future of Drones

Quantum Systems creates advanced drones for critical aerial intelligence across industries. With Altium Designer and Altium 365, they streamline electronics engineering and enhance team collaboration. Watch how Altium software helps them innovate faster and build reliable drones for mission-critical moments.

Embedded thumbnail for Wire Bonding Shorts: 3D Stacked Die with Cavity
New in Altium Designer 25
Wire Bonding Shorts: 3D Stacked Die with Cavity

Check our short video by Samer Aldhaher on using Altium Designer’s wire bonding tool for creating 3D stacked die in cavity. Highlights advanced techniques for compact, high-performance PCB designs with 3D integrated circuits.

Embedded thumbnail for Constraint Manager Improvements in Altium Designer 25
New in Altium Designer 25
Constraint Manager Improvements in Altium Designer 25

Discover the latest in Altium Designer 25’s Constraint Manager, with updates like flexible net selection, streamlined rule management, and differential pair handling. Simplify your PCB design workflow with powerful new tools and enhancements.

Embedded thumbnail for Signal Integrity Made Simple - Recording Preview
How-To's
Signal Integrity Made Simple - Recording Preview

Catch up on our “Signal Integrity Made Simple” webinar to explore essential techniques for ensuring high-speed design integrity. Watch the recording to gain practical insights, and don’t miss our upcoming November webinar showcasing the latest Altium Designer release, featuring the powerful Signal Analyzer by Keysight and additional tools to optimize your projects.

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