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Free footprint library resources
Blog
Leveraging the Free Footprint Community to Design at Lightning Speed

Designing footprints is a job most people hate. It’s tedious, time-consuming, and doesn’t result in much except, well, a footprint. Companies now realize this pain point and offering designers free, well-designed PCB footprints. Why would they spend their time doing this? In this article, we’re going to review some of the free offerings that exist within the PCB design community. Once you’re armed with this information, you will spend most of your time designing and routing boards instead of pulling your hair out creating footprints all day.

PCB Motherboard with Multiple Slots with RAM Memory Installed, and Other System Hardware
Blog
Designing for Multiple PCBs in the Same Project

The majority of our PCB designs sit as a single PCB under our Altium Designer projects. It sometimes happens that we have a single project that requires multiple PCBs with various stuffing options, but when it happens, a lot of us tend to get stuck. How do you handle the exact change across both projects? How do you guarantee those changes to be identical? This article will review an approach to managing multiple PCB designs within a single project, ensuring your single source of truth.

EMI and thermal challenges in 5G design
Blog
Designing 5G Devices

The next stage in the evolution of mobile telephony is here with the roll-out of 5G. The designer looking to incorporate functionality to handle 5G signals into their circuits will face some challenging issues. So, what’s so special about 5G?

PCB tracks
Blog
All About Your PCB Trace Length: How Long is Too Long?

The maximum PCB trace length you can place between two components depends on multiple factors, such as signaling protocol, component specification, losses in PCB laminate, and skew. With all this in mind, let’s look at where losses accumulate along the channel.

LDO
Blog
Using an LDO vs. Switching Regulator in Your PCB

For low power devices, we generally see two types of power regulators: a low dropout regulator (LDO) or a switching regulator. You can mix and match these at different points along your power bus, but there’s still the matter of choosing whether to use an LDO vs. a switching regulator in your designs. If you’ve ever wondered how these decisions are made and when to use each type of regulator, just know that there is more to this decision than simply looking at the input/output voltage/current.

Natural flux
Blog
What They Don’t Teach You About Fluxes

PCB fabrication is an extremely complex technological topic that deserves recognition as the most fundamental part of PCB engineering. Unless connectors, conductive adhesive, wire-bonding, or zebra-tape are used, in the modern electronics industry it’s always necessary to use some kind of flux during the soldering process to create an electric connection. In this article, we’ll discuss fluxes — what they are, what they are made of (yes, there is going to be a lot of chemistry, don’t be scared), how they should be used, and in what direction the industry is going.

Webinar Preview
On-Demand Webinar
Group Editing Tools and Methods in Altium Designer Webinar

Do you ever have to edit a large group of objects on your design? Whether you are dealing with your schematic or PCB, this webinar will help you get acquainted with the main tools for group editing of objects in Altium Designer. You will also learn how to effectively apply group editing methods with filters and selection tools in different design scopes.

PCB with ice for best cooling
Blog
Thermal Management for Integrated Circuits

As anyone who designs and builds electronic devices knows, the device will generate heat when it’s switched on. Wherever current flows through an impedance, energy losses will manifest themselves as heat. Integrated circuit packaging is getting smaller to meet the trend for more compact devices but at the cost of poorer thermal properties. This article describes the basic thermal management approaches to consider in your next designs. 

Embedded thumbnail for How to Edit or Manage Board Shape
How-To's
How to Edit or Manage Board Shape

Board shapes can be edited and managed several different ways in Altium Designer. We’ll show you how using 2D and 3D modes and models as well as importing from DXF or DWG.

Blog
Anatomy of Latitude Part Two: "Thread with a Needle” in the context of energy

We continue to explore the magic of energy conversion in a PWM transducer. Why is it magic? Theoretically, in a PWM transducer this happens without losses, isn't that magic? A PWM transducer, like a tailor with scissors, cuts the “fabric of energy” into pieces, and then, like a sewing machine, stitches the pieces of energy into a dress - DC Magnitude. What is a constant component and how can we get it? Let's explore!

Pulse Width Regulation Module
Blog
Anatomy of Latitude Part One: Pulse Width Modulation (PWM) as a Result of the Evolution of Linear Systems

There are different techniques in the world of technology to achieve various goals, both final and intermediate. Some techniques are so successful that they are commonly used with high efficiency. Electronics is no exception. The greatest example is the use of Pulse Width Modulation (PWM) signals (energy), which is applied in any modern electronic device. To apply PWM effectively, it is necessary to understand the engineering difficulties that engineers faced in the past, and the thoughts and ideas that subsequently were combined into effective, complete PWM power solutions.

Embedded thumbnail for How to define The Impedance Profile For a Coplanar Stripline
How to Work with Differential Pairs
How to define The Impedance Profile For a Coplanar Stripline

In this video, we show how to determine the impedance of a coplanar stripline. The impedance is configured on the Impedance tab of the Layer Stack Manager. When calculating the impedance, the Layer Stack Manager takes into account the material parameters and the distance to the return conductors.

Electrolytic capacitor
Blog
What Influences Electrolytic Capacitor Lifespan?

If you speak with a bunch of design engineers, you might quickly form the opinion that the electrolytic capacitor has a particularly dubious reputation. A faulty electrolyte mix used in these types of capacitors led to premature device failures, and quite often, a “bit of a mess” was made to the PCBs on which they were soldered. However, despite the problem of the capacitor plague, this article is focusing on helping the designer understand how to get many more years of useful life from an electrolytic capacitor.

Share Designs and track changes easily
On-Demand Webinar
Using Version Control in Your PCB Project Webinar

Version control has been a staple of software development for decades, but hardware development can benefit just as much from a version control system (VCS). Traditionally, VCS has been managed locally tying you down to a workplace, but advances in cloud technology have removed that limitation. Learn how Altium 365 cloud technology enables working concurrently on designs with built-in version control and evaluate its advantages.

Elegant writing
Blog
Creating Elegant and Readable Schematics

A schematic drawing will not only tell your PCB design software what needs to connect where, but it also communicates the purpose of a circuit to other people. It’s easy to create a schematic, but it can be harder to make a helpful schematic that can be quickly and easily read and comprehended by the reader. In this guide, based on years of industry experience, we will show you how to improve your schematic layout so that your designs are elegant and readable.

Embedded thumbnail for How to Create Complex Keepout Shapes
How-To's
How to Create Complex Keepout Shapes

Keepout regions are easy to create in Altium Designer, but they can be complex. We’ll show you a few ways to make creating your more complex keepout shapes easier and more efficient.

Copper rings
Blog
Must Have Rapid Prototyping Tools

Suppose your job involves rapidly iterating designs or creating a wide variety of products for clients. In that case, there are some essential tools available that can save you a tremendous amount of time, bringing high engineering risk devices to completion successfully. Whether you’re working on internal projects or developing high mix devices for clients as a consulting or freelance firm, these indispensable tools will help you ship a higher quality product in less time. 

Embedded thumbnail for How to Use a Courtyard Layer for the Component Boundary
How-To's
How to Use a Courtyard Layer for the Component Boundary

In this video, you will see how to use the courtyard layer as a component boundary.

Blog
Best Practices for Sharing PCB Files vs. Sharing PCB Projects

Even though today’s cloud platforms are immaculately secure and they allow a range of files to be easily shared, there are times where you should limit the data you’re sharing to only the critical files required. For PCB designers, this means either sharing entire design projects or sharing individual files with your manufacturer, customers, contractors, or collaborators. If you want to eliminate liabilities and keep your team’s design data secure, consider these best practices for sharing PCB design data with Altium 365.

Principial Schematic
Blog
Best Practices for Using Reference Designs

Best component companies will release reference designs for their new and legacy products to show designers an example application for a component. If the reference design is good enough and it very nicely illustrates how to quickly engineer around a few main components, I’m likely to use them in the design and the component maker has just earned my business. If you’re a newer designer and you’re wondering whether reference designs are right for your next project, follow these best practices so that you don’t make any mistakes with your reference design.

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Schematic Compare
Blog
Schematic Compare

A design project doesn’t appear out of nowhere. The design process spreads over time, and project documents change. Schematic documents gradually become more complex, new functional blocks appear, and already finished parts can be modified and updated.

Embedded Capacitance Materials Overview
Blog
Embedded Capacitance Materials Overview

Capacitance is your friend whenever you need stable power integrity, which is why there is so much focus on decoupling capacitors. While these components are important and they can be used to provide targeted power integrity solutions to certain components, there is one specialty material used to supercharge capacitance in your PCB stackup or package substrate. 

How To Import Libraries and Manage Components With Altium 365
Blog
How To Import Libraries and Manage Components With Altium 365

The problems you can experience with components and libraries are endless. These problems are the most significant source of design issues and the biggest reason behind respins, costing companies untold amounts of lost profit annually.
If you want to have a better understanding of how to use Altium 365 to maintain a strong and centralized library that is free of problems and headaches, you may want to consider attending this lecture.

The High-Speed PCB Stackup Design Challenge
Blog
The High-Speed PCB Stackup Design Challenge

As much as we would like to build every high speed PCB perfectly, with ideal SI/PI/EMI characteristics, it isn’t always possible due to many practical constraints. Sometimes a stackup can be “good enough,” even for a high-speed PCB. This always comes from the need to balance engineering constraints, functional requirements, and the need to ensure signal and power integrity in a high-speed design, and finally to ensure compliance with EMC requirements.

How I Improved My Collaboration Efficiency with Altium 365
Blog
How I Improved My Collaboration Efficiency with Altium 365

Involving the whole team that will bring a product to completion early on in the development cycle is vital to efficient development. Design reviews with all the relevant parties are critical at each step of the design process, starting with high-level component selection, then through the schematic capture and PCB layout stages. 

Countersink and Counterbore
Blog
Countersink and Counterbore

Ergonomics and convenience are important issues when designing a printed circuit board and the device as a whole. A lot of Altium Designer tools are aimed at solving them. These include Countersink and Counterbore holes, which allow the use of various types of screws in the mounting holes of the board.

Migrating Data From Other Version Control Systems
Blog
Migrating Data From Other Version Control Systems

The development of electronic devices always involves the release of many different types of files. And these files are not static - they change as the project progresses. When filling a project with data, a user creates new files, modifies outdated files that have become irrelevant. Managing project data is a separate task, especially for large developments where several participants with different specializations are involved in the process.

Properties Panel Tuning
Blog
Properties Panel Tuning

High-speed PCBs often require tuning groups of tracks, both single and differential. Altium Designer includes powerful tools that allow you to solve such tasks quickly and with high quality. Study this document and achieve the desired result even faster.

Reflectionless Matching vs. Conjugate Matching: An Apparent Contradiction
Blog
Reflectionless Matching vs. Conjugate Matching: An Apparent Contradiction

There is one confusion related to impedance matching that comes up again and again, and it appears to be a fundamental confusion between reflection and power delivery. This leads to an apparent contradiction that arises when we try to generalize power delivery to wave reflection, despite the fact that the two were not meant to be related.

Properties Panel Routing
Blog
Properties Panel Routing

Routing is one of the most time-consuming stages of PCB design. Altium Designer has a large set of tools that allow you to do it as accurately and quickly as possible. This document will help you to learn how to manage your routing effectively and use it to its fullest extent.

Quarter-Wave Transformer Design For Real and Reactive Loads
Blog
Quarter-Wave Transformer Design For Real and Reactive Loads

RF systems operate with specific impedance values across entire interconnects, including on PCBs. Not all RF components are packaged in integrated circuits with defined impedances, so impedance matching circuits and line sections are needed to ensure signal transmission between different sections of an interconnect. One of these impedance matching techniques is the quarter-wave impedance transformer, which can be implemented as a printed trace with specific impedance.

Schematic
Blog
Altium Designer 22.10 Update

We are happy to announce that the Altium Designer 22.10 update is now available. Altium Designer 22.10 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!

Component Warpage Causes in a PCB
Blog
Component Warpage Causes in a PCB

A staff member at a PCB manufacturer once explained to me that they thought we were having an issue with a package warping. Unfortunately, component warping can occur both in a PCB and in components. In this article, we'll give an overview of warpage in a PCB, specifically in the circuit board and in the components.

Link Budget Calculator
Blog
RF Signal Chain and Link Budget Basics

If you're designing a wireless IoT device, and you know how to calculate the link budget, you can reasonably estimate whether your signal will reach its destination and be read by the receiver. To calculate the link budget, the designer needs to know something about all other sources of gain and loss in the system. Once link budget is determined, the designer can judge whether some modification is needed in their RF signal chain. 

How to Calculate SMD Pad Sizes?
Blog
Best Methods for Calculating SMD Pad Size in PCB Design

SMD components require precisely sized pads for soldering during assembly. The designer is responsible for ensuring pad sizes are correct, either by calculating them and comparing with footprint data, looking through datasheets, or by memorizing SMD pad size standards. If you have a component and you don't have access to the footprint, and you decide to biuld the footprint yourself, what resources are available to ensure you have the correct pad size?

Can You Fix a Warped PCB?
Blog
Can You Fix a Warped PCB?

Before we get too deep into this article, I’ll give you the simple answer. You probably can’t fix warping in your PCB after it’s already been fabricated. You can prevent an unwarped board from becoming warped during assembly, but only as long as materials were selected properly and the board is put into reflow correctly. We’ll run over some of these points in this article, and I’ll examine some points that might help you recover a warped board.

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Embedded thumbnail for Do PCB Manufacturers Actually Look at Fabrication Drawings?
How-To's
Do PCB Manufacturers Actually Look at Fabrication Drawings?

Explore this in-depth tutorial featuring real fabrication drawings, stackup specifications, and drill tables - all created using Altium Designer’s Draftsman tool. Learn essential insights into PCB data management and manufacturing requirements from an industry perspective.

Embedded thumbnail for Compensating Transmission Line Losses in a PCB Calculator
How-To's
Compensating Transmission Line Losses in a PCB Calculator

This tutorial uncovers the key difference between ideal, lossless impedance calculations and real-world signal behavior giving you practical techniques to design controlled impedance PCBs that deliver reliable performance.

Embedded thumbnail for How Close Can You Bring a Reference Plane?
How-To's
How Close Can You Bring a Reference Plane?

Explore our in-depth investigation into practical simulations using both Altium Designer and Polar Si9000. We demonstrate impedance sensitivity analysis and reveal the real limitations of optimizing reference plane proximity for improved signal shielding.

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.

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.

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