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Embedded thumbnail for How to use Copy Room Format
How to work with Rooms
How to use Copy Room Format

Rooms allow you to use rules on specific areas of your design. This helps immensely with properly defining trace widths and hole sizes for specific components. We’ll show you how easy it is to assign rules to specific rooms in the PCB.

What Are the Main Skew Sources in a PCB?
Blog
Addressing Skew Sources in High Speed PCBs

If you compile a list of skew sources, you'll see that fiber weave-induced skew is only one entry on a long list of skew sources. We'll look at this list of possible skew sources below, and we'll see how they affect the operation of your PCB. From the list below, we'll see that some of these issues with skew are not simply solved by paying attention to the fiber weave construction in a PCB substrate.

Advanced Topics in High-Speed Design
On-Demand Webinar
Advanced Topics in High-Speed Design

This track is for the engineer who understands high-speed design requirements and wants to learn design practices to help ensure signal integrity and EMC with fast digital protocols, mixed-signal boards, and high layer counts.

Ground Below SMPS Inductors
Blog
Should Ground Be Placed Below Inductors in Switching Regulators?

We love answering questions from our readers and YouTube viewers, and one of the recent questions we received relates to EMI from switching elements in a switching regulator is "Should a cutout be placed below the inductor in a switching regulator circuit?". Despite the variations in inductors and their magnetic behavior, there are some general principles that can be used to judge the effects of placing ground near inductors in switching regulator circuits. We’ll look at some of these principles in this article

Embedded thumbnail for How To Do Versioning And Releases by Robert Feranec and Michal Faruga
Discovering Altium 365
How To Do Versioning And Releases by Robert Feranec and Michal Faruga

Meet Robert Feranec in an educational video on version control, project history, comments, comparison and other features in Altium Designer 

Alternative Pins
Blog
Altium Designer 22.6 Update

We are happy to announce that the Altium Designer 22.6 update is now available. Altium Designer 22.6 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!

Embedded thumbnail for Using Rooms in Rules
How to work with Rooms
Using Rooms in Rules

Rooms allow you to use rules on specific areas of your design. This helps immensely with properly defining trace widths and hole sizes for specific components. We’ll show you how easy it is to assign rules to specific rooms in the PCB.

What’s New in Altium 365
On-Demand Webinar
What’s New in Altium 365

Now you can assess your library’s health at a glance with the Library Health dashboard, view and share your bill of materials (BOM) and view and download PDF documents, all in your web browser. We improved the existing diff and compare features, and released a new version of MCAD CoDesigner. Register for the webinar to learn more!

Embedded thumbnail for Creating a Schematic Symbol: Dealing with Power Pins
How to create a Schematic Symbol
Creating a Schematic Symbol: Dealing with Power Pins

Multiple schematic symbols often require the use of multiple power and ground pins. We’ll show you the difference between hidden and visible power pins, and the various methods you can use to use them in your design however it works best for you.

Top 5 Questions Regarding Stack Up
Blog
SAP (Semi-Additive PCB Process) – Top 5 Questions Regarding Stack Up

This Semi-Additive Process is an additional tool in the PCB fabricators' toolbox that enables them to provide feature sizes for trace width and spacing that are 25 microns, (1 mil) and below depending on the fabricators' imaging equipment. This provides much more flexibility to breakout out tight BGA areas and the ability to shrink overall circuit size and/ or reduce the number of circuit layers in the design. As the PCB design community embraces the benefits of this new printed circuit board fabrication technique, there are of course many questions to be answered.

Embedded thumbnail for Allowing Permanent Display of Some Layers
How-To's
Allowing Permanent Display of Some Layers

This video demonstrates how to permanently display some layers in the PCB using the View configuration panel.

Embedded thumbnail for Creating Rooms in the PCB
How to work with Rooms
Creating Rooms in the PCB

If you want to create a room manually in the PCB or have them generated for the Schematic, Altium Designer allows you to create custom rooms. We’ll show you how to hand draw different rooms, how to create rooms by defining them through the room definition, and how to have them generated for the schematic and pushed through to the PCB by the Engineering Change Order.

Three ways to manage your BOM costs
Blog
Improving Supply Chain Success with BOM Management

It’s no secret that component shortages have become more frequent this year. In fact, countries around the world are losing billions in revenue due to supply issues. Having the right components on hand is more crucial than ever as availability, obsolescence, counterfeit products and environmental non-compliance risks continue to grow. Fortunately, many shortages can be avoided by introducing proactive supply chain practices.

Design Reuse
On-Demand Webinar
Rapidly Creating New Designs And Reusing Existing Ones

It's no secret that software developers often use completed code fragments from other projects for quick and predictable results. The same can be done for PCB Design, there is no need to spend time rewiring schematics or laying out components on boards you’ve done before. Join us this webinar where we’ll go over how you can use your existing designs to create reusable design blocks, speeding up the design cycle for your future projects.

Length Tuning Impedance
Blog
What is the Impedance of Length-Tuning Structures?

Do length-tuning structures create an impedance discontinuity? The answer is an unequivocal “yes”, but it might not matter in your design depending on several factors. Applying a length-tuning structure is equivalent to changing the distance between the traces while meandering. Therefore, you will have a change in the odd-mode impedance of a single trace. The question then becomes: does this deviation in trace impedance in a length tuning structure matter?

Embedded thumbnail for Creating a Schematic Symbol - Placing Designators and Comments
How to create a Schematic Symbol
Creating a Schematic Symbol - Placing Designators and Comments

Placing your designator or comments can be done automatically, but that doesn’t mean they’re visible. We’ll walk you through how to make them visible and position them correctly no matter what orientation your symbol is with automatic positioning.

Embedded thumbnail for Creating a Schematic Symbol: Adding Additional Parts
How to create a Schematic Symbol
Creating a Schematic Symbol: Adding Additional Parts

Altium Designer makes it easy to add additional parts to your schematic library. We’ll show you how through copying and configuring your new components through the Pin Editor and the properties panel.

Designing the Next-Generation Electronics
Blog
A-SAP™ – What do you need to know?

The continued miniaturization of both packaging and component size in next-generation electronics is becoming harder and harder to work around and presents a significant challenge for both PCB designers and PCB fabricators. To effectively navigate the constraints of the traditional subtractive-etch PCB fabrication processes, PCB designs require advanced PCB fabrication capabilities while pushing the limits of finer feature size, higher layer counts, multiple levels of stacked micro vias and increased lamination cycles.

Embedded thumbnail for Component Placement Control Using Rooms
How to work with Rooms
Component Placement Control Using Rooms

Rooms give you more control over how and where your components are placed in your PCB. We’ll show you how to use room properties to limit what is allowed in and out of a room using the room definition and custom queries.

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Part 1: Why Your PCB Design Review Process Is Obsolete and What You Can Do About It
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Part 1: Why Your PCB Design Review Process Is Obsolete and What You Can Do About It

A PCB design review is a practice to review the design of a board for possible errors and issues at various stages of product development. It can range from a formal checklist with official sign-offs to a more free-form inspection of schematic drawings and PCB layouts. For this article, we will not delve into what to check during a design review process but rather look at how a review process itself usually unfolds and how to optimize it to get the most out of your time.

Star ground PCB
Blog
What is PCB Star Grounding and Why Would Anyone Use It?

If you look on the internet, you'll find some interesting grounding recommendations, and sometimes terminology gets thrown around and applied to a PCB without the proper context or understanding of real electrical behavior. DC recommendations get applied to AC, low current gets applied to high current, and vice versa... the list goes on. One of the more interesting grounding techniques you'll see as a recommendation, including on some popular engineering blogs within the industry, is the use of PCB star grounding.

Silkscreen on PCB
Blog
Your Guide to PCB Silkscreen

Every PCB has silkscreen on the surface layer, and you’ll see a range of alphanumeric codes, numbers, markings, and logos on PCB silkscreen. What exactly does it all mean, and what specifically should you include in your silkscreen layer? All designs are different, but there are some common pieces of information that will appear in any silkscreen in order to aid assembly, testing, debug, and traceability

Gibbs ringing
Blog
What Causes Gibbs Ringing in High-speed Channel Simulations?

Designing high-speed channels on complex boards requires simulations, measurements on test boards, or both to ensure the design operates as you intend. Gibbs ringing is one of these effects that can occur when calculating a channel’s response using band-limited network parameters. Just as is the case in measurements, Gibbs ringing can occur in channel simulations due to the fact that network parameters are typically band-limited.

Heated component on PCB
Blog
Efficient Heat Dissipation with SMD Heat Sinks Keeps You From Dropping PCBs

In electronics, there is the possibility that your PCB can get pretty hot due to power dissipation in certain components. There are many things to consider when dealing with heat in your board, and it starts with determining power dissipation in your design during schematic capture. If you happen to be operating within safe limits in a high power device, you might need an SMD heat sink on certain components. Ultimately, this could save your components, your product, and even the operator.

RF PCB
Blog
RF Power Supply Design and Layout Guide

One thing is certain: power supply designs can get much more complex than simply routing DC power lines to your components. RF power supply designs require special care to ensure they will function without transferring excessive noise between portions of the system, something that is made more difficult due to the high power levels involved. In addition to careful layout, circuitry needs to be designed such that the system provides highly efficient power conversion and delivery to each subsection of the system.

Prevent Overvoltage, Overcurrent and Heat logo
Blog
Methods to Protect your Circuit

Overvoltage, overcurrent, and heat are the three most likely events that can destroy our expensive silicon-based components or reduce our product’s life expectancy. The effects are often quite instant, but our product might survive several months of chronic overstress before giving up the ghost in some cases. Without adequate protection, our circuit can be vulnerable to damage, so what should we do? Or do we need to do anything?

SUBCKT sharing
Blog
SUBCKT Sharing: The Fastest Ways to Share SPICE Models Online

Today’s PCB designers and layout engineers often need to put on their simulation hat to learn more about the products they build. When you need to perform simulations, you need models for components, and simulation models often need to be shared with other team members at the project level or component level. What’s the best way for Altium Designer users to share this data? Read this article to learn more about sharing your models with other design participants. 

RF Printed Circuit Board
Blog
RF PCB Material Comparison for mmWave Devices

When some designers start talking materials, they probably default to FR4 laminates. The reality is there are many FR4 materials, each with relatively similar structure and a range of material property values. Designs on FR4 are quite different from those encountered at the low GHz range and mmWave frequencies. So what exactly changes at high frequencies, and what makes these materials different? To see just what makes a specific laminate useful as an RF PCB material, take a look at our guide below. 

Testing Challenges and Solutions
Blog
Low Cost Solutions for Automated Hardware in the Loop Testing

In today’s fast-paced world where iterations of electronics are spun at lightning speeds, we often forget one of the most critical aspects of development: testing. Even if we have that fancy test team, are we really able to utilize them for every modification, every small and insignificant change that we make to our prototypes? In this article, we will review a very low cost, yet highly effective and quite exhaustive test system that will get you that bang for your buck that you’ve been looking for.

PCB Assembly
Blog
Best Practices for Using DNI/DNP Entries in Your PCB BOM

If you’ve ever looked at the BOM for a reference design or an open-source project, you may have seen a comment in some of the entries in your BOM. This comment is either “DNP” or “DNI”. If you think about it, every component placed in the PCB requires some level of placement and routing effort, which takes time and money if you’re working for a client. This begs the question, why would anyone design a board with components they don’t plan to include in the final assembly?

Altium Designer interface
Blog
Altium OutJob Files vs. Project Release: What's the Difference?

When it’s time to share your design data with your manufacturer, it’s like taking a leap of faith. Sending off a complete documentation package might seem as easy as placing your fab files in a zip folder, but there are better ways to ensure your manufacturer understands your project and has access to all your design data. For Altium Designer users, there are multiple options for creating and packaging release data into a complete package for your manufacturers.

Power component on PCB
Blog
Testing the Limits of Your LDO's Efficiency

If you’re designing a circuit board to be powered by anything except a bench-top regulated power supply, you’ll need to select a power regulator to place on your board. Just like any other component, your regulator has stated operating specs you’ll see in a product summary, and it has more detailed specs you’ll find in a datasheet. The fine details in your datasheets are easy to overlook, but they are the major factors that determine how your component will interact with the rest of your system.

PCB Laboratory Equipment
Blog
How Total Harmonic Distortion Affects Your Power System

It would be nice if the power that came from the wall was truly noise-free. Unfortunately, this is not the case, and although a power system can appear to output a clean sine wave, zooming into an oscilloscope trace or using an FFT will tell you a different story. When you take "dirty" power, put it through rectification, and then pass it through a switching regulator, you introduce additional noise into the system that further degrades power quality. If you’re a power supply or power systems designer, then you know the value of supplying your devices with clean, noise-free power.

Copper on PCB
Blog
What PCB Copper Thickness Should You Use?

If you’re an electronics designer or you’re just beginning your career as an engineer, the PCB stackup is probably one of the last things you’ll think about. Simple items like PCB copper thickness and board thickness can get pushed to the back burner, but you’ll need to think about these two points for many applications as not every board will be fabricated on a standard 1.57 mm two-layer PCB

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Embedded thumbnail for Do PCB Thermal Vias Actually Work?
How-To's
Do PCB Thermal Vias Actually Work?

Are thermal vias really helping your PCB’s heat management? Tech Consultant Zach Peterson dives into simulation data, research, and a controversial article to uncover the truth. Learn why via count and spacing matter more than sheer quantity.

NEW
Embedded thumbnail for Stripline Routing Deep Dive: How Close Is Too Close?
How-To's
Stripline Routing Deep Dive: How Close Is Too Close?

In this video, Zach Peterson takes a deep dive into what happens when reference layers are incorrectly set in a PCB stackup and how that affects impedance, signal integrity, and EMC. He also shares valuable insights into stripline routing proximity issues and best practices for assigning reference planes.

Embedded thumbnail for Coming Soon: Solder Mask Zero Expansion
New in Altium Designer 25
Coming Soon: Solder Mask Zero Expansion

Solder Mask Zero Expansion marks a move toward industry alignment, specifically with IPC-7351B and IPC-2581B standards. It changes the default solder mask expansion value from 4 mil to 0 mil. Discover more upcoming updates on our Coming Soon Page.

Embedded thumbnail for Analog Supply without a Ferrite: Proper Isolation Techniques Explained
How-To's
Analog Supply without a Ferrite: Proper Isolation Techniques Explained

In our new tutorial, you'll learn why ferrite beads may not be the best choice for isolating analog and digital supply pins on integrated circuits. Zach Peterson debunks common misconceptions about ferrite bead isolation and introduces better alternatives, including dedicated LDOs, precision voltage references, and effective filtering techniques to help you achieve cleaner analog signals in your designs.

Embedded thumbnail for Enhanced Constraint Manager in Altium Designer 25. Part II: Physical Constraints and Routing Differential Pairs
Enhanced Constraint Manager in Altium Designer 25
Enhanced Constraint Manager in Altium Designer 25. Part II: Physical Constraints and Routing Differential Pairs

In the second video of Samer Aldhaher’s "Enhanced Constraint Manager" series, we continue designing a 1 kW, 400 V brushless DC motor driver. This episode focuses on setting physical constraints using constraint sets, routing differential pairs, and demonstrating the Auto Shrinking feature in Altium Designer 25.

Embedded thumbnail for Auto-tuning Your Way to Faster PCB Design
Altium Designer's 25 Quantitative Benefits
Auto-tuning Your Way to Faster PCB Design

Watch how the Auto Tuning feature in Altium Designer 25 delivers optimized DDR4 routing in a single click! Fewer steps, massive time savings. Try our Benefit Calculator to estimate your own time and cost savings.

Embedded thumbnail for Enhanced Constraint Manager in Altium Designer 25. Part I: From Directives to Creepage Rules
Enhanced Constraint Manager in Altium Designer 25
Enhanced Constraint Manager in Altium Designer 25. Part I: From Directives to Creepage Rules

We are introducing a new video series on the Enhanced Constraint Manager in Altium Designer 25. In the first chapter, Samer Aldhaher demonstrates how to define net classes, apply clearance and creepage rules, and validate constraints within both the schematic and PCB. The video uses a 1kW, 400V brushless DC motor driver project to illustrate real-world applications.

Embedded thumbnail for Design Faster with Altium Designer 25
Altium Designer's 25 Quantitative Benefits
Design Faster with Altium Designer 25

Every second and every click count in the product development cycle. See how the new PCB Layout Replication feature in Altium Designer 25 boosts your efficiency in the PCB design process. Want to improve even more? Check out our Benefit Calculator now!

Embedded thumbnail for Creating PCB Drill Drawings and Tables in Altium Designer
How-To's
Creating PCB Drill Drawings and Tables in Altium Designer

If you want to learn more about drill drawings and tables in your PCB designs using Altium Designer, this tutorial is a must-watch. In the video, our Tech Consultant Zach Peterson walks you through multiple methods for generating these critical fabrication documents, including automatic Gerber outputs and custom drawings.

Embedded thumbnail for Streamlining Team Collaboration in Industrial PCB Projects - Recording Preview
New in Altium Designer 25
Streamlining Team Collaboration in Industrial PCB Projects - Recording Preview

This webinar recording shows how Altium Designer and Altium 365 improve team collaboration in industrial PCB projects. It covers features like version control, live commenting, task tracking, and JIRA integration to help teams work more efficiently and reduce costly errors.

Embedded thumbnail for AC Coupling Capacitors: Placement for High-Speed PCB Design
How-To's
AC Coupling Capacitors: Placement for High-Speed PCB Design

Learn the facts about AC coupling capacitor placement in high-speed PCB designs. In this video, Zach Peterson explores the ongoing debate: should AC coupling capacitors be placed near the transmitter or the receiver in high-speed differential pairs?

Embedded thumbnail for Coming Soon: Export 3D-MID Tracks as Centerline Curves
New in Altium Designer 25
Coming Soon: Export 3D-MID Tracks as Centerline Curves

Coming Soon: 3D-MID Track-to-Centerline Export allows you to export conductive tracks on 3D substrates as precise centerline curves within STEP files—enabling seamless integration with advanced 5-axis manufacturing processes. Explore more upcoming upgrades on our Coming Soon page.

Embedded thumbnail for Advanced xSignal and Impedance Control Techniques - Recording Preview
New in Altium Designer 25
Advanced xSignal and Impedance Control Techniques - Recording Preview

This webinar recording explores advanced xSignal and impedance control techniques in Altium Designer 25. It covers defining xSignals, managing impedance profiles, differential pairs, and delay tuning—all essential for high-speed PCB design. Full recording you find here: April 2025 COM Webinar Recording.

Embedded thumbnail for Coming Soon: Embedded 3D Models for Harness Designs
How-To's
Coming Soon: Embedded 3D Models for Harness Designs

Coming soon: the Embedded 3D Models for Harness Designs feature will automatically include Parasolid-format 3D models in your harness layout drawings. This improves integration with MCAD CoDesigner, enabling seamless synchronization between electrical and mechanical design domains. To see more upcoming upgrades, visit our Coming Soon page.

Embedded thumbnail for Make Smarter Design Decisions with Signal Analyzer by Keysight
New in Altium Designer 25
Make Smarter Design Decisions with Signal Analyzer by Keysight

Discover how to simplify your workflow and boost design confidence with Signal Analyzer by Keysight—a complete extension available right inside Altium Designer 25. This whitepaper shows you how to analyze impedance, delay, and insertion/return loss without ever leaving your design environment.

Embedded thumbnail for Unveiling 86% Task Time Efficiency in Altium Designer 25
Altium Designer's 25 Quantitative Benefits
Unveiling 86% Task Time Efficiency in Altium Designer 25

Watch how Altium Designer 25 saves time on PCB visualization. This short video shows a side-by-side comparison of the same task done in Altium Designer 25 vs. an external CAD tool—revealing big time and click savings. A great teaser to highlight the value of the unified design environment and promote the Benefit Calculator.

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