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Embedded thumbnail for Precise Selection with PCB Filter
How to work with Selection •
Precise Selection with PCB Filter

Narrowing down a precise and accurate selection of objects can be difficult on a crowded board. Learn about the PCB Filter panel, how to use it to create queries to select objects on the PCB, and how to create design rules from these queries.

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What is the PCB Supply Chain?
Blog •
What is the PCB Supply Chain?

The PCB supply chain encompasses multiple components, raw materials, and the PCB itself. PCBs and PCB assemblies are often the most technically complex components that are purchased for electronic assemblies and products. The complexity of modern PCBs leads to several challenges for a supply chain management team that may be significantly different when compared with other commodities the team manages. In this brief guide, we'll look in-depth at the PCB supply chain, and specifically what falls within the purview of a procurement and supply chain management team.

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Embedded thumbnail for Rigid-Flex Board Shape Design in MCAD
Working with MCAD CoDesigner extension •
Rigid-Flex Board Shape Design in MCAD

The MCAD Codesigner allows you to design or edit your board shape in the MCAD environment and have it pushed back to Altium Designer. We’ll show you how to configure the board shape, rigid and flex regions, and mounting holes.

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What is mode conversion
Blog •
A Guide to Mode Conversion, Its Causes, and Solutions

On interconnects, such as board-to-board connections or cascaded transmission line arrangements, you have an important EMC compliance metric that is sometimes overlooked. This is mode conversion, which can be visualized in an S-parameter measurement for differential and common-mode signal transmission. In this article, we’ll look at a short overview of mode conversion in high-speed design with some examples from common differential standards.

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Embedded thumbnail for Design RF PCB: routing (any angle, arc)
RF PCB Design •
Design RF PCB: routing (any angle, arc)

It is worth taking a responsible approach to the shape and size of the RF signal conductors. In this video we will cover some practical aspects of working with routing such nets in Altium Designer.

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Embedded thumbnail for Component Placement in Rigid-flex PCB
Working with MCAD CoDesigner extension •
Component Placement in Rigid-flex PCB

With the MCAD CoDesigner you can quickly add and move components from your MCAD tool and update the design automatically in Altium Designer. We’ll show you how to add a new component, move components, change a component’s region in MCAD, and update your design in Altium Designer.

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Pad and via sizing
Blog •
PCB Via Size and Pad Size Guidelines

There are some aspects of PCB design and layout that seem deceptively simple, and yet they have a complex answer that is related to many important aspects of manufacturing. One of these design aspects is the match between PCB via size and pad size. Obviously, these two points are related; all vias have a landing pad that supports the via and provides a place to route traces into a via pad. However, there are some important sizing guidelines to follow when the matching pad and via sizes, and this match is an important element of DFM and reliability.

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Preparing your files for Fabrication Release
On-Demand Webinar •
Preparing your files for Fabrication Release

When you’re done creating a new board, it’s time to send your design data to the manufacturer. Before releasing your designs, you’ll want to make sure that everything is ready and works as intended. In this informative video, we’ll review some of the must-have checks before sending your output data for fabrication.

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Differential Microstrip Impedance
Blog •
Differential Microstrip Impedance Calculator

Are you looking for a free tool that you can use to calculate the impedance of differential microstrips? We created a simple tool you can use to calculate differential microstrip impedance for a given geometry and dielectric constant. If you’ve been looking for an accurate differential microstrip impedance calculator, then the calculator below is certainly one of the best free tools you’ll find on the internet before you start using field solvers to determine differential pair impedance.

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Embedded thumbnail for Transmission lines (coplanar)
RF PCB Design •
Transmission lines (coplanar)

The boards use transmission lines to carry high-frequency signals. In addition to microstrip lines, coplanar transmission lines with a ground reference polygon are often found on boards. Coplanar transmission lines propagate the same wave type as microstrip transmission lines, but the electromagnetic field is more concentrated near the conductor, so coplanar lines have lower losses at high frequencies, less dispersion, and less interference to adjacent circuits.

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Embedded thumbnail for How to Reuse Board Shapes in MCAD
Working with MCAD CoDesigner extension •
How to Reuse Board Shapes in MCAD

You can use the MCAD Co-designer panel to reuse your board shape or geometry in your PCB. We’ll show you how to use the MCAD Co-designer panel in Altium Designer and how to copy your board shape and geometry from your MCAD tool to Altium Designer.

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PCB DFM Check
Blog •
Getting Through a PCB DFM Check

In this article, we’ll discuss the key design features to implement, and steps to take prior to fabrication that will help prevent some common DFM problems. I’ll also provide examples of where I commonly see these PCB DFM problems in signal integrity circuits.

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Embedded thumbnail for Selection filter - Panel Properties and PCB
How to work with Selection •
Selection filter - Panel Properties and PCB

Learn how to configure the types of selected objects using the Selection Filter. In addition, you will learn about the Post Selection Filter and its features.

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Spreading Inductance
Blog •
What is Spreading Inductance?

If you’re working with a high-speed digital component, there are some simple power integrity rules that should be followed. However, there is one quantity that is sometimes ignored when building a PDN impedance simulation: the spreading inductance of your plane pair. Here are some points designers should know about the spreading inductance of a plane pair.

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Embedded thumbnail for PCB Origins During the ECAD MCAD Exchange
Working with MCAD CoDesigner extension •
PCB Origins During the ECAD MCAD Exchange

Origins can vary from your MCAD tool and Altium Designer. With the MCAD Co-Designer panel Altium Designer can keep track of your origin point and make sure your design changes are exchanged correctly.

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Embedded thumbnail for Global Editing Using Find Similar Objects
How to work with Selection •
Global Editing Using Find Similar Objects

Editing multiple objects one by one can be a very time consuming process. Altium Designer makes this easy and efficient with the Find Similar Objects tool, which allows you to globally select and edit multiple objects at once.

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PCB Design Basics for New Designers
Blog •
PCB Design Basics for New Designers

In this article, I’ll present some design basics that every new designer should follow to help ensure their design process is successful. Some of these points may challenge the conventional view of how circuit boards are constructed, but they are intended to help balance low noise signaling, manufacturability, and ease of solving a layout.

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On-Demand Webinar •
Efficient PCB Routing Using Gloss and Retrace Tools

The primary goal of your traces is to carry signals throughout your board without losses. To do this properly, you must familiarize yourself with the requirements for signals on the printed circuit board and how to optimize the topology of the board in terms of signal integrity. We will analyze the most popular routing cases applicable for using the Gloss and Retrace tools in Altium Designer to optimize your signal integrity.

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Selecting Materials for High Voltage PCB Design and Layout
Blog •
Selecting Materials for High Voltage PCB Design and Layout

High voltage PCBs are subject to certain safety and reliability concerns that you won’t find in most other boards. If your fabrication house specializes in high voltage PCBs and keeps materials in stock, they can likely recommend a material set, as well as a standard stackup you might use for certain voltage ranges and frequencies. If you need to choose your own materials, follow the tips below to help you narrow down to the right material set.

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Embedded thumbnail for Shaping the PCB in MCAD
Working with MCAD CoDesigner extension •
Shaping the PCB in MCAD

Through the MCAD Co-designer in Altium Designer, you can collaborate with a mechanical engineer to shape the PCB in your MCAD tool and keep it updated in Altium Designer. We’ll show you how in Altium Designer and in your MCAD tool.

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Blog •
Wiring for the Final Frontier: A Guide to Space-Grade Harness Design

Wiring harnesses are mission-critical in space systems, requiring strict adherence to ECSS-Q-ST-70-61C and NASA-STD-8739.4A. In "Wiring for the Final Frontier: A Guide to Space-Grade Harness Design", Kamil Jasiński explores key design principles, material selection, and testing to ensure reliability in extreme environments.

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Blog •
Ideal Rectifier Bridge

Read Marcin Lewandowski's article explaining how MOSFETs are replacing traditional diodes for reverse polarity protection. Step into the future of energy-efficient electronics!

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Blog •
Overview of the Gerber X3 File Format

Want to learn how the Gerber X3 file format simplifies data exchange by unifying assembly and fabrication details in a single file? This article explores the format and its role in streamlining PCB manufacturing.

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Blog •
Mastering EMI Control in PCB Design: How to Design PCBs for Low EMI

This article by Dario Fresu delves into effective techniques for designing PCBs to reduce electromagnetic interference (EMI). It covers key topics such as stackup selection, routing strategies, and grounding best practices, offering actionable insights for improved performance.

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Blog •
Happy Holidays!!!

Altium wishes you all the best this holiday season! May this time be filled with joy, laughter, and cherished moments with your family and friends. We also extend our warmest wishes for a Happy New Year 2025!

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Blog •
What Is Wire Harness Design?

Explore our latest article to learn the fundamentals of wire harness design, its key components, and how it ensures organized, efficient, and reliable electrical systems across automotive, aerospace, and medical sectors.

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Blog •
How to Determine Ferrite Bead Circuit Model Parameters

Learn how to accurately determine ferrite bead circuit model parameters for effective noise suppression in high-speed PCB designs. This article explores key concepts, measurement techniques, and practical tips for modeling ferrite beads in your projects.

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NEW
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.

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NEW
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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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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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.

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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.

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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!

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