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SPI vs. I2C For Memory Access
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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
What is the Best PCB Design Tool For Students?

Students need PCB software that’s intuitive, affordable, and useful for building real skills. This article compares the strengths and weaknesses of leading design tools, from hobbyist platforms to industry-standard software.

Blog
What Is Collaborative Engineering?

Collaborative engineering is all about breaking down silos so electrical, mechanical, and sourcing teams can work as one with shared data and real-time updates. This article shows how that approach helps you spot issues early, reduce rework, and get products out the door with fewer surprises.

Blog
Bend Reliability: How Trace Geometry and Materials Impact Flex Lifespan

Focused on durability under repeated mechanical stress, this piece details how routing strategy, copper thickness, adhesive systems, and bend radius selection determine flex lifespan. Engineers will find actionable recommendations for reducing strain concentration and improving long-term performance in high-cycle applications.

Blog
PCB Design Process: The EDA Design Approach

Dive into how a modern EDA workflow transforms PCB design by linking electrical, mechanical, and manufacturing requirements from idea to final release. With constraint‑driven integration, you can cut down on respins and bring better boards to market faster.

Blog
Getting Started for Mechanical Engineers

Explore our collection of MCAD Collaboration walkthroughs, where you’ll discover how to synchronize mechanical constraints and keepouts, maintain traceability with advanced history and revision control, and streamline electromechanical connectivity through harness synchronization. These topics and many more are covered in this article.

Blog
Are Your ECAD Tools Holding Back Engineers’ Productivity?

The article highlights that productivity issues often stem from tool limitations rather than engineer effort, especially as project complexity grows. ECAD tools that offer clear version control, cross-discipline integration, and workflow awareness are key to sustaining efficiency.

Blog
7 Ways to Catch Rules & Constraints Early – Checklist

Discover seven actionable ways to spot and fix rules and constraint issues before they derail your PCB project. Using Altium Designer Agile, these tips help you build more manufacturable and reliable boards with fewer iterations.

Blog
Do You Need an IPC-D-356 Netlist?

If your output package is Gerber-based, adding an IPC-D-356 netlist can dramatically improve how your design is reviewed and validated for production. Here’s when it matters, what it contains, and how to generate it quickly in Altium.

Blog
Avoid These Top 3 Power Distribution Failures in PCB Design

Power distribution issues can silently undermine your PCB’s reliability. This article uncovers the top three failure modes and shows how Power Analyzer by Keysight helps you catch them early in the design phase and how Altium Agile Teams turns those checks into structured team action.

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NEW
Embedded thumbnail for Proper Voltage Built a Universal Battery Platform with Altium
Altium Stories
Proper Voltage Built a Universal Battery Platform with Altium

Watch our latest customer success story to see how Proper Voltage partnered with Altium to accelerate high-power battery development for next-generation robotics. With our software, they streamlined collaboration, sped up design reviews, improved sourcing visibility, and reduced risk.

NEW
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New in Altium's Software
Improve Readability with Custom Pin Spacing

You can now control the vertical spacing of a pin’s designator and name with a custom margin. This setting can be applied globally via Schematic Preferences or adjusted individually in the Pin properties.

Embedded thumbnail for Does Decoupling Capacitor Placement Actually Matter?
How-To's
Does Decoupling Capacitor Placement Actually Matter?

Our new video tackles common questions about capacitor placement on a PCB. Expert Zach Peterson explains why placement is often less critical on multilayer boards with well-designed power and ground planes and shares the key insights most application notes leave out.

Embedded thumbnail for Teaching Power to Think - How Proper Voltage Accelerates Innovation with Altium
Altium Stories
Teaching Power to Think - How Proper Voltage Accelerates Innovation with Altium

Watch the video where you can find how Proper Voltage centralized communication, synchronized ECAD–MCAD development, and gained early insight into supply chain risks using Altium’s connected design platform.

Embedded thumbnail for  Detect Z-Axis Clearance Issues Earlier
New in Altium's Software
Detect Z-Axis Clearance Issues Earlier

The Z-axis clearance rule enables accurate verification of minimum interlayer copper spacing. It supports targeted constraints between net classes, differential pairs, and schematic parameter directives for advanced rule definition.

Embedded thumbnail for Fix Inconsistent Part Parameters in Your PCB Schematic
How-To's
Fix Inconsistent Part Parameters in Your PCB Schematic

Watch our latest video to learn what parameterization really means, why getting the manufacturer name and part number right is essential, and how to quickly identify inconsistencies across your schematic components using Altium’s Parameter Manager tool.

Embedded thumbnail for Create IPC-Aligned Footprints with Less Effort
New in Altium's Software
Create IPC-Aligned Footprints with Less Effort

The default value for the Solder Mask Expansion rule has been updated to improve consistency across design environments. In both PCB documents and rule-driven solder mask expansion within PCB library documents, the default setting is now 0 mil, replacing the previous default of 4 mil.

Embedded thumbnail for Via Dispersion: Why Propagation Delay Changes with Frequency
How-To's
Via Dispersion: Why Propagation Delay Changes with Frequency

Explore the concept of via dispersion and how it impacts propagation delay across frequencies. This tutorial walks through the math behind extracting delay from insertion loss and return loss S-parameters and explains why results can vary depending on your operating range.

Embedded thumbnail for Make Via Rule Configuration More Intuitive
New in Altium's Software
Make Via Rule Configuration More Intuitive

Set precise control over your routing via styles with new rule settings in the Physical View. Define minimum, maximum, and preferred values for both diameter and hole size, and easily switch between constraint ranges or template-based definitions for faster, more flexible design.

Embedded thumbnail for Coplanar Ground Done Right: PCB Design Best Practices
How-To's
Coplanar Ground Done Right: PCB Design Best Practices

When is coplanar ground actually useful and when does it provide no benefit at all? If you’ve ever wondered about this, check out our brand-new video where we tackle one of the most common questions in PCB design.

Embedded thumbnail for Import and Export with Modern Mechanical Models
New in Altium's Software
Import and Export with Modern Mechanical Models

We have expanded mechanical integration by adding support for SOLIDWORKS 2024 and SOLIDWORKS 2025 part models when importing 3D bodies into the design environment. This enhancement allows designers to work with the latest mechanical models created in SOLIDWORKS without the need for additional conversions or workarounds.

Embedded thumbnail for How to Input Via Delay in Altium for DDR Routing
How-To's
How to Input Via Delay in Altium for DDR Routing

In this video, we tackle a real viewer question about DDR3 routing across multiple PCB layers and show how via delay can silently eat into your skew margin before you’ve even finished routing, using Altium’s default 10-layer stackup as a reference.

Embedded thumbnail for Clearly Show Jumper Wires in Your Harness Designs
New in Altium's Software
Clearly Show Jumper Wires in Your Harness Designs

Support has been improved so that jumper wires connecting two cavities within the same connector are now properly shown in Layout Drawings, making the connector wiring easier to understand during documentation and review.

Embedded thumbnail for Why Datasheet PCB Guidelines Are Often Wrong
How-To's
Why Datasheet PCB Guidelines Are Often Wrong

Watch our brand-new video where we tackle the persistent issue of outdated PCB design guidelines still found in datasheets and application notes from major semiconductor manufacturers. Drawing on viewer comments, real-world datasheet examples, and insights from industry experts, we examine why recommendations such as splitting analog and digital ground planes (an approach rooted in the 1980s) continue to circulate despite their potential to cause EMC failures, signal integrity problems, and costly redesigns.

Embedded thumbnail for Keep Your Harness Designs in Sync with Library Updates
New in Altium's Software
Keep Your Harness Designs in Sync with Library Updates

The "Update From Libraries" feature has been enhanced to provide broader support for harness-related objects across both Wiring Diagrams and Layout Drawings. With this expansion, a wider range of harness components such as connectors, wires, splices, and associated attributes can now be synchronized directly with their corresponding library definitions.

Embedded thumbnail for How to Set Up Flex PCB Materials in Altium
How-To's
How to Set Up Flex PCB Materials in Altium

Discover how to set up flex and rigid-flex PCB materials in Altium with the Layer Stack Manager. In this tutorial, you’ll follow the key steps for defining polyimide cores, adhesive layers, coverlay, and stiffeners helping you build accurate, production-ready rigid-flex PCB designs.

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