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Ground Pour, Impedance and Losses
Blog
Microstrip Ground Clearance Part 2: How Clearance Affects Losses

If your goal is to hit a target impedance, and you’re worried about how nearby pour might affect impedance, you can get closer than the limits set by the 3W rule. But what are the effects on losses? If the reason for this question isn’t obvious, or if you’re not up-to-date on the finer points of transmission line design, then keep reading to see how nearby ground pour can affect losses in impedance-controlled interconnects.

Altium Designer Interface
On-Demand Webinar
What is High-Speed Design?

The primary source of high-speed problems is not due to high clock frequency but rather the fast rise and fall times of component signals. With fast edge rates, reflections may occur at the receiver side, and when the board routing is dense, crosstalk may become a problem. During this webinar, you'll sharpen your knowledge and develop new skills that you can use to design High-Speed PCB's more efficiently and effectively. 

Choosing the Right Microphone for Embedded Applications
Blog
Choosing the Right Microphone for Embedded Applications

If you need to capture sound waves for your electrical device to process, you'll need a microphone. However, microphones these days have become very advanced, and there are so many options to choose from. They range from the relatively simple and popular condenser type microphones to state-of-the-art sound conversion solutions incorporating internal amplifiers and other electronic processing functionality. In this article, we'll take a look at some of the options available.

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How to Work with Multichannel Schematic
Creating Schematic Channels

Altium Designer makes creating single and multichannel designs effective and quick. We’ll show you how to create and annotate output and input channels in your design. 

 Computer planet with circuit grid
Blog
Composite Amplifiers and How They Give the Best of Both Worlds

There are many times where you need an amplifier with high gain, low noise, high slew rate, and broad bandwidth simultaneously. However, not all of these design goals are possible with all off-the-shelf components. Here are some points to consider when working with a composite amplifier design and how to evaluate your design with the right set of circuit simulation tools.

Impedance balancing power supply
Blog
Reduce Common-Mode Noise in Your Power Supply with Impedance Balancing

Simple switching regulator circuits that operate in compact spaces, like on a small PCB, can usually be deployed in noisy environments without superimposing significant noise on the output power level. As long as you lay out the board properly, you’ll probably only need a simple filter circuit to remove EMI on the inputs and outputs. As the regulator becomes larger, both physically and electrically, noise problems can become much more apparent, namely radiated EMI and conducted EMI in the PCB layout.

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How to Work with Draftsman
Using Snapping for Primitives and Components | Draftsman Documents

Snapping using the grids and snapping tools in Altium Designer’s Draftsman Editor gives you a lot of control over how you create and annotate primitives and components. We’ll show you how easy it is to use snapping in the Draftsman Editor. 

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

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How To Work with High-Speed Projects
Pin Package Delay | High-speed Design

There are a few things to consider when adding and tuning signal delay to your design. Altium Designer gives you the tools to address the fine tuning for signal delay so you can easily make it work, using pin package delay. 

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How to use Snapping
Introduction to Snapping Options

Introduction to snapping options: grids, guides, axes of objects, and snapping to objects.

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

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How to Work with Draftsman
Working with Tables | Draftsman Document

The Draftsman Document Editor allows you to add all your data for your design through tables. We’ll show you how to work with tables, and the various options to add and edit, such as Bill of Materials, Drill Tables, Transmission Line Tables, and custom tables. 

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How To Work with High-Speed Projects
Pin Part Swapping | High-speed Design

If you have a lot of traces intersecting on a single layer, but you need to minimize the amount of vias for your high speed design, you can utilize pin and part swapping. Altium Designer has tools to solve these issues, and we’ll show you how to solve them.

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.

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How To Work with High-Speed Projects
How to Route High-Speed Designs | High-Speed Design

Routing for your high-speed design can be really easy with just a little preparation. We’ll walk you through the best ways to set up your routing so you can easily route your high-speed signals. 

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?

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Blog
The PCB Fabrication Process — what Every Design Engineer Needs To Know, Part 2

In Part 1 of this article, I described the first steps that occur during the PCB fabrication process. They detailed the inner layer processing effort as well as the efforts that take place during the transition from inner layer processing to lamination. This part of the article will provide a detailed description of the lamination, drilling and plating processes.

Blog
The PCB Fabrication Process—What Every Design Engineer Needs To Know, Part 1

There are still a number of designers - perhaps most of them - who have never toured a PCB fabrication facility. They are also unaware of the various steps that occur during the fabrication process. The purpose of this article is to describe those steps and what transpires in each of them. Part 1 of this article focuses on inner layer processing and the steps that are done prior the lamination process.

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Blog
Webinar "8 Reasons to Store Your Components in Altium 365"

Working with local libraries seems like a simple solution, but we often don’t take into account the added time spent maintaining libraries and sharing them between team members. This webinar showcases the advantages of component storage in Аltium 365 to resolve the issues of local libraries and component management.

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Blog
Bridging the Gap Between Designers and Customers

Every piece of electronic equipment starts with a great idea. Transforming great ideas into real, physical products takes a team of talented individuals and multiple companies coming together to make everything from the internal components to the external hardware. Paul Payen de la Garanderie, Founder and Owner of AW Audio, an engineering services company based in France, understands these challenges very well. With an extensive background in the Audio/Visual industry, Paul has had to work with multiple companies over the years, from small start-ups to celebrated AV firms.

Blog
Additive PCB Manufacturing: The Vaccine for Electronics Supply Shocks?

At this time, at least a quarter of the world’s population is under quarantine, with workers unable to go to offices or factories, leading to fundamental disabling of the world economy. The electronics industry is suffering greatly as well, dealing with a supply shock from factories shutting down in Southeast Asia, to demand-side shocks from Western markets literally shutting down. Now it is the electrical engineers taking the lead with additive PCB manufacturing.

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Blog
Webinar "6 Steps to Master Project Storage"

Altium 365 provides a secure cloud platform to store all of your design files in a single place so you can share them with anyone and access them from anywhere. This webinar discusses the advantages of placing, storing, and working with projects in Altium 365.

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Blog
Altium Designer 20 Changed My Layout Design Routines

I just finalized my first PCB design using Altium Designer 20. At the same time, I tested some new AD20 features, and in this article, I’ll share my thoughts about new layout design features which made the biggest impression for me: sliding, and any-angle routing.

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Blog
Designing for Antenna Isolation in Your Wireless System

Anyone who has taken apart an old cell phone or designs IoT devices knows multiple communication capabilities are present in these designs, each requiring different antennas. The RF designer should already take precautions for interconnect isolation, but antenna isolation is just as important when modeling and designing wireless systems.

Blog
PCB Trace and Pad Clearance: Low vs. High Voltage

High voltage/high current designs carry safety requirements which need to be met by designers. Similarly, high speed designs need to have suppressed crosstalk in order to ensure signal integrity. The key design aspects that relate to both areas are your PCB trace clearance and pad clearance values. These design choices are critical for balancing safety, noise suppression, and manufacturability.

Blog
Getting Through PCB DFM

In this article, we’ll discuss the key design features to implement, and steps to take prior to fabrication that will help prevent some DFM process pain.

Altium Designer Getting Started User Guide
Blog
Level Up Your Design Skills - Altium Designer Getting Started User Guide Update
We are happy to announce the new update of our Altium Designer Getting Started User Guide. Whether you are new to Altium Designer or you want to brush up on some topics, the Altium Designer Getting Started User Guide will take you from a beginner to a master in PCB design.  This is only the beginning! This guide will be updated with new information based on user feedback. Let’s first go over the contents of the guide.
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Blog
Modeling Copper Foil Roughness in Altium Designer's Impedance Profiler

With the new layer stack manager in Altium Designer®, you can now include copper foil roughness factors directly in your impedance calculator. This is quite easy to do in the layer stack manager, but it begs the question: what exactly is the copper roughness factor? Which value should be used for your interconnects?

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Blog
High-Speed Signal Routing: The 5 Important Constraints

After you capture your schematic as an initial layout and create an initial component arrangement, it’s time to define your routing constraints. Doing this early will allow your DRC engine to spot rules violations before you finish your layout. Likewise, you’ll be able to modify the default rule set to meet your layout requirements. Here are the important routing constraints you’ll need to check before you start routing your board.

Blog
How to Create a PCB Manufacturing Cost Estimation

Some manufacturers have very convenient PCB manufacturing cost estimation calculators you can use, but the real costs depend on a number of factors. If you’re an entrepreneur and you’re producing your own boards, or you are managing manufacturing, testing, and delivery for a new project, it’s your job to help clients understand the primary cost drivers for new boards. Here’s how you can get an estimate of your fabrication costs, both for local and overseas manufacturers.

Blog
PCB Mountable Connectors: SMD vs. Through-hole

Selecting a connector is as much an art as it is a science. The artistic side is all about aesthetics and satisfying clearances, while the scientific side is all about signal integrity. For PCB mountable connectors, you’ll need to choose between surface-mounted or through-hole connectors, and you’ll need to consider how each type affects signal integrity in your application. Here’s what you need to think about beyond the standard connector specifications.

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NEW
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New in Altium's Software
Just Released: ODB++ Intellectual Property Protection

ODB++ Intellectual Property Protection lets you control exactly what design data is included in the ODB++ output, ensuring each manufacturing partner receives only the information needed for their specific fabrication or assembly tasks.

NEW
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How-To's
Future of Electronics Development in Security and Aerospace

See the highlights from Altium's executive event in Hamburg, where Security and Aerospace leaders explored AI-driven development, digital engineering, supply chain resilience, and the future of mission-critical electronics.

Embedded thumbnail for Create Clearance Rules Faster and with Less Effort
New in Altium's Software
Create Clearance Rules Faster and with Less Effort

Setting up clearance rules is now more intuitive in the Constraint Manager. Choose the Simple view for faster configuration with grouped object types, or the Advanced view when you need detailed, matrix-based clearance control.

Embedded thumbnail for Mastering HDI Design Rules in Altium Designer
How-To's
Mastering HDI Design Rules in Altium Designer

In our latest Altium Academy tutorial, we guide you through configuring the essential HDI PCB design rules in Altium's software. You'll learn how to use your manufacturer's fabrication capabilities to create accurate design rules and constraints for your PCB.

Embedded thumbnail for Search, Filter, and Navigate PCB Designs Faster
New in Altium's Software
Search, Filter, and Navigate PCB Designs Faster

The Web Viewer now features a redesigned search experience for faster access to PCB design data across supported CAD formats. A lightweight, intuitive interface lets you begin with simple search terms and progressively refine results using contextual suggestions.

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New in Altium's Software
Gain Better Control Over Wire Bond Visibility

New bond wire visibility controls give you greater flexibility when working with wire-bonded boards and footprints, making it easier to focus on the details that matter most.

Embedded thumbnail for Coming Soon: Selectable Harness Source Within Multi-board Design
New in Altium's Software
Coming Soon: Selectable Harness Source Within Multi-board Design

Selectable Harness Source Within Multi-board Design enables harness projects to drive system connectivity while maintaining bidirectional synchronization between multi-board schematics and harness wiring diagrams for improved accuracy and easier design management.

Embedded thumbnail for Choose the Simbeor Version for Your PCB Calculations
New in Altium's Software
Choose the Simbeor Version for Your PCB Calculations

The PCB Editor now lets you choose the Simbeor version used for delay and impedance calculations, giving you more flexibility and consistency across your design workflows.

Embedded thumbnail for Improve PCB Editor Performance with Via Instancing
New in Altium's Software
Improve PCB Editor Performance with Via Instancing

The PCB Editor now uses via instancing to generate geometry for each via individually, providing greater flexibility and a more advanced approach to managing vias in PCB designs.

Embedded thumbnail for GSSG Stackup Deep Dive: Routing, Impedance, and HDI
How-To's
GSSG Stackup Deep Dive: Routing, Impedance, and HDI

A ground-signal-signal-ground (GSSG) stackup rethinks the traditional four-layer PCB structure by moving the ground planes to the outer layers and routing signals on the two inner layers. In this Altium Academy deep dive, we review a real one-minute design review submission and demonstrate how to configure a GSSG stackup properly using the Layer Stack Manager.

Embedded thumbnail for Generate IPC-7351B Compliant Footprints with More Control
New in Altium's Software
Generate IPC-7351B Compliant Footprints with More Control

The IPC Compliant Footprint Wizard has been updated to improve IPC-7351B compliance across supported package types. Enhancements include footprint calculations, package outlines, silkscreen and courtyard generation, layer mapping, density table behavior, and new pad trimming controls for gullwing packages, with support added to the batch generator Excel template.

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New in Altium's Software
Add Unit-Aware Temperature Coefficient Parameters

Component templates in a connected Workspace on the Altium Platform now include support for Temperature Coefficient (ppm/°C) as a unit-aware user parameter type. This makes it possible to define temperature coefficient values directly within the template using the appropriate units.

Embedded thumbnail for When to Add Part Numbers to SMD Passives
How-To's
When to Add Part Numbers to SMD Passives

Check out our new video covering essential electronics fundamentals, with a focus on why including part numbers for SMD passive components, such as SMD resistors, directly on schematics is so important. We also explore whether relying only on the Bill of Materials (BOM) is enough for effective electronic component management.

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New in Altium's Software
Present Large Harness Tables More Clearly

Harness Draftsman now supports splitting connection tables across multiple pages in *.HarDwf documents. With the new page height limit setting, you can easily control how much of the table appears on each page.

Embedded thumbnail for Innovate Beyond - The Future of Electronics Development in Automotive
How-To's
Innovate Beyond - The Future of Electronics Development in Automotive

Discover how the future of automotive electronics is being shaped by a more connected development approach that unifies teams, data, requirements, design, collaboration, and manufacturing. Recorded at BMW Welt and the BMW Museum during Altium’s "The Future of Electronics Development in Automotive" event, this video explores the key challenges and innovations driving the next generation of automotive design.

Embedded thumbnail for Coming Soon: Design Rule Sets
New in Altium's Software
Coming Soon: Design Rule Sets

Soon, PCB design rules in Altium will be organized into reusable Rule Sets within the PCB Rules and Constraints Editor. These rule sets can be created, duplicated, enabled or disabled, renamed, deleted, imported, and exported, making it easier to manage rules for specific interfaces, manufacturing requirements, or unique design constraints.

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