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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.

Altium Designer interface
On-Demand Webinar
One-Stop Design Team Configuration

A heavy focus is usually put on managing your design data, but what about managing your design team? A mismanaged design team can lead to a disorganized and inaccurate design library and data. Watch this webinar to see how Altium 365 can help you to organize users into access restricted groups, manage design and designer access rights, avoid design conflicts when multiple members are working on the same design, and standardize your entire project using templates

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

Finished PCB
Blog
Should You Route Signals in Your PCB Power Plane?

I often get questions from designers asking about things like signal integrity and power integrity, and this most recent question forced me to think about some basic routing practices near planes and copper pour. "Is it okay to route signal traces on the same layer as power planes? I’ve seen some stackup guidelines that suggest this is fine, but no one provides solid advice." Once again, we have a great example of a long-standing design guideline without enough context.

Embedded thumbnail for Quantel Laser | MCAD and ECAD Designers Collaborate with Altium
Discovering Altium 365
Quantel Laser | MCAD and ECAD Designers Collaborate with Altium

In this video, Quantel’s engineers - Jeremie Waller (Senior Electrical Engineer) is using Altium Designer for ECAD and Laine McNeil (Senior Mechanical Engineer) is using Solidworks for MCAD. They are both in an Altium 365 workspace that allows them to closely collaborate while staying in their own familiar design environment.

Embedded thumbnail for Using Free (Any) Angle Routing
How-To's
Using Free (Any) Angle Routing

In this video, you will see how Altium Designer now makes it extremely easy to create curved corners in your designs. Previously, arc-in-corner routing was only supported during interactive routing, but not in Push&Shove mode or during track sliding. The new Push&Shove engine solves this by adding arcs during push and shove and also during track sliding, which is done by switching to any angle corner mode to perform snake routing.

PCB Routing
Blog
The Anatomy of Your Schematic Netlist, Ports, and Net Names

Electronics schematics form the foundation of your design data, and the rest of your design documents will build off of your schematic. If you’ve ever worked through a design and made changes to the schematic, then you’re probably aware of the synchronization you need to maintain with the PCB layout. At the center of it all is an important set of data about your components: your schematic netlist. What’s important for designers is to know how the netlist defines connections between different components and schematics in a large project.

Embedded thumbnail for Snapping When Creating Routes
How to use Snapping
Snapping When Creating Routes

Learn how to effectively use snapping to facilitate routing.

Produced PCB
Blog
How to Compare PCB Manufacturing Services for Your Board

There are plenty of PCB manufacturing services you can find online, and they can all start to blend together. If you’re searching for a new service provider, it can be hard to compare all of them and find the best manufacturer that meets your needs. While experienced designers can spot bogus manufacturers from afar, there is always a temptation to go with the lowest priced, supposedly fastest overseas company you can find. However, there is a lot more that should go into choosing a PCB manufacturing service than just price.

Low-Pass Filter Arragement
Blog
Pi Filter Designs for Power Supplies

Pi Filters are a type of passive filter that gets its name from the arrangement of the three constituent components in the shape of the Greek letter Pi (π). Pi filters can be designed as either low pass or high pass filters, depending on the components used. The low-pass filter used for power supply filtering is formed from an inductor in series between the input and output with two capacitors, one across the input and the other across the output. Keep reading to learn more about their application in the PCB Design.

Hybrid PCB
Blog
How to Design a Hybrid PCB Stackup

The first question that should come up when selecting materials and planning a stackup is: what materials are needed and how many layers should be used? Assuming you’ve determined you need a low-loss laminate and you’ve determined your required layer count, it’s time to consider whether you should use a hybrid stackup. There are a few broad situations where you could consider using a hybrid stackup with low-loss laminates in your PCB

Embedded thumbnail for How to edit or manage your board shape in Altium Designer | Rigid-flex
How to Work with Rigid-Flex PCBs
How to edit or manage your board shape in Altium Designer | Rigid-flex

Altium Designer 21 features many powerful tools for creating and editing your rigid-flex board shape. We’ll show you how to use to the board planning mode to create board shape and define regions as well as edit their properties for easy identification and functionality.

Battery and clock
Blog
Efficient Battery Power Supplies

Batteries offer a great power source for electrical devices that need to be mobile or located somewhere where connection to a mains electricity supply or other power source is impossible. The biggest problem with battery power is the expectation of users that the device will operate for significant periods with the need for recharging or replacing the batteries. This demand is placing the onus on the designer to improve efficiency and reduce power demand to meet this need.

Embedded thumbnail for How Breville Innovates 4x Faster with Altium
Discovering Altium 365
How Breville Innovates 4x Faster with Altium

Learn how Breville, a consumer electronics company from Australia, was able to speed up its product development process by at least four times with Altium 365. 

Embedded thumbnail for How to use the Property Panel in Altium Designer
How-To's
How to use the Property Panel in Altium Designer

How to use the Property Panel in Altium Designer: The properties panel is your information hub for all objects in Altium Designer. Watch this video to learn how to best use the properties dialog in Altium Designer. 

Blog
What Target Impedance Should You Use in Your PDN?

A number of us on this blog and in other publications often bring up the concept of target impedance when discussing power integrity in high-speed designs. Some designs will be simple enough that you can take a “set it and forget it” approach to design a functional prototype. For more advanced designs, or if you’re fine-tuning a new board that has existing power integrity problems, target impedance is a real consideration that should be considered in your design.

Embedded thumbnail for How to Improve Routing Using Glossing
How-To's
How to Improve Routing Using Glossing

Routes for your design can get messy, leading to inefficiency and waste. Altium Designer’s Glossing features can help! We’ll show you how to clean up your interactive routing as you route, how to gloss tracks already routed, and some tips and tricks to clean them up exactly how you want them.

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PCB Sharing - What Data You Can Share in Altium 365
Blog
PCB Sharing and What Data You Can Share in Altium 365

Altium 365 is giving design teams a new way to share and manage their design data. Most users are probably aware of project-level and component-level PCB sharing features, but sharing actually extends down to the level of individual files thanks to the managed content system within Altium 365. If you’ve ever wanted a single place to store and manage all of your design data, then Altium 365 is here to help you and your team stay organized.

Power Supply Components on PCB
Blog
How to Combat Power Supply EMI in Your PCB

Power supplies are one of those systems we all tend to take for granted. Everyone’s first task in power supply design is usually to ensure the voltage and current output reach the desired level, probably followed by thermal considerations. However, due to safety issues, EMC requirements, the use of higher PWM frequencies, and the need for smaller packaging, power supply EMI should be a major design consideration. With that being said, what are the major sources of power supply EMI, and how can power supply designers keep them in check?

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.

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. 

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.

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.

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.

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. 

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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NEW
Embedded thumbnail for Altium Harness Design Tutorial - From Schematic to 3D Layout
How-To's
Altium Harness Design Tutorial - From Schematic to 3D Layout

Design professional harness systems in Altium with confidence. Follow this comprehensive tutorial to learn multiboard project setup, create wiring diagrams, visualize in 3D, and produce manufacturing-ready documentation complete with ECAD-MCAD integration for precise wire length measurement.

NEW
Embedded thumbnail for Arduino to Custom PCB: Professional Design Transformation
How-To's
Arduino to Custom PCB: Professional Design Transformation

Discover how to upgrade your Arduino Nano-based PCB design into a professional, custom PCB. This tutorial walks through the process of replacing development boards with individual components to create a production-ready design, using a real drone project as the example.

Embedded thumbnail for PCB Library Management: One Library or Many?
How-To's
PCB Library Management: One Library or Many?

This detailed guide walks you through the pros and cons of each approach and offers proven strategies for managing component data, whether you're an independent designer or overseeing libraries for an entire organization.

Embedded thumbnail for Coming Soon: Sawtooth Rounding Support for Length Tuning
New in Altium Designer 25
Coming Soon: Sawtooth Rounding Support for Length Tuning

Sawtooth Rounding for Length Tuning improves signal‑path accuracy by applying controlled corner‑rounding to sawtooth geometries during both Interactive Length Tuning and within‑pair matching in the Auto Tuning engine. Discover this capability and additional innovations on our Coming Soon page.

Embedded thumbnail for Coming Soon: Z-Axis Clearance Rule
New in Altium Designer 25
Coming Soon: Z-Axis Clearance Rule

The Z-Axis Clearance Rule checks the shortest distance between copper features on different layers in a PCB design. It is available in both the Constraint Manager and the legacy PCB Rules Editor. Discover more new features in Altium on our Coming Soon Page.

Embedded thumbnail for Coming Soon: Advanced Polygon Pour Engine
New in Altium Designer 25
Coming Soon: Advanced Polygon Pour Engine

Now supports true arcs instead of approximated curves in copper pours. This enhanced engine marks a major advancement in the polygon pour process in Altium Designer, delivering smoother and more accurate copper shapes. Native arc rendering improves visual quality and helps ensure cleaner, more professional PCB designs.

Embedded thumbnail for How to Design Rigid-Flex PCB Stackups from Scratch
How-To's
How to Design Rigid-Flex PCB Stackups from Scratch

Watch this tutorial to learn the fundamentals of Rigid-Flex design. We cover everything from understanding polyimide materials and adhesive layers to building complex, multi-layer Rigid-Flex constructions that are ready for manufacturing.

Embedded thumbnail for How to Draw Antipads - Complete Tutorial
How-To's
How to Draw Antipads - Complete Tutorial

Discover how to draw and define antipads in Altium with this complete tutorial. Learn three different methods for creating antipads around vias. From simple design rules to advanced polygon cutouts for both basic and complex PCB designs.

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.

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