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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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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.

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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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.

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.

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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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.

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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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.

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.

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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How to work with Selection
Cross Select Mode

Cross Select Mode is a unique tool that allows for cross-selection of objects between the schematic and PCB thanks to the Altium Unified platform. This makes it easy to look for specific components, as well as take advantage of component placement tools.

Via tenting in PCB Layout
Blog
When to Use Tented Vias in Your PCB Layout

There are some guidelines I see many designers implement as a standard practice, often without thinking about it. Some of these practices are misunderstood or implemented without best practices. Others are implemented without thinking about the potential problems. One of these is the use of tented vias, which is sometimes implemented in a PCB layout by default. Is this always the right practice?

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How to work with Selection
Tools for Efficient Selection

Efficient selection tools can make a difference in how long and how clean your design can be. Learn how to utilize the Edit Select Menu tools in Altium Designer to take control over your layout.

Capacitive load termination
Blog
How to Impedance Match and Terminate Capacitive Loads

The idea of a purely capacitive load is something of a fallacy. Yes, capacitors exist, but all capacitors are non-ideal, and it is this deviation from a theoretical capacitance that determines how to impedance match a load that exhibits capacitive behavior. Let’s take a look at this important aspect of interconnect design and see what it really means to terminate a capacitive load.

Embedded thumbnail for Tools for Easily Selecting Objects in the PCB
How to work with Selection
Tools for Easily Selecting Objects in the PCB

Explore more than basic mouse movements by taking a look at the tools that Altium Designer has to offer for making selecting and moving objects in the PCB an easy task. This will increase your productivity and allow you to spend more time designing

Using Altium 365 Over Your Vanilla Version Control System
Blog
Using Altium 365 Over Your Vanilla Version Control System

There are all sorts of version control systems out there that people have been using with their PCB design software. As discussed in Why Use a Version Control System, we looked at different options ranging for local hard drive storage to sophisticated online revisioning systems. In this article we will be reviewing the differences between a standard VCS and Altium 365.

Why Use a Version Control System in PCB Design
Blog
Why Use a Version Control System in PCB Design

Version Control Systems (VCS) have been around for many decades within the software world but can be surprisingly new to some folks in the electronics design industry. This article will cover what a VCS is, what it does, and why you should be using one for your PCB design projects.

IPC 6012 Class 3 Annular Ring
Blog
Meeting Standards: IPC 6012 Class 3 Annular Ring

Designers often conflate leftover annular ring and pad sizes - they need to place a sufficiently large pad size on the surface layer to ensure that the annular ring that is leftover during fabrication will be large enough. As long as the annular ring is sufficiently large, the drill hit will not be considered defective and the board will have passed inspection. In this article, I'll discuss the limits on IPC-6012 Class 3 annular rings as these are a standard fabrication requirement for high-reliability rigid PCBs.

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Working with Polygons
How to Work with The Polygon Manager

It is important to have a high-level view of all polygons on the PCB design. The Polygon Manager lets you rename polygons, set their pour order, perform re-pouring or disable pouring on selected polygons, add/scope the polygon connection style and clearance design rules, and add polygon classes for selected polygons.

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Broken PCB
Blog
The High-Reliability PCBA Design and Test Challenge

High-reliability electronics must go through multiple rounds of testing and qualification to ensure they can withstand their intended operating environment. Designing to performance standards, whether the baseline IPC standards or more stringent industry standards, is the first step in ensuring a reliable circuit board. In this e-book, readers will gain a thorough look into PCB testing and analysis, starting from basic tests performed on bare boards and completed assemblies.

Where to place AC Caps on PCIe Lanes
Blog
AC Coupling Capacitors in PCIe Routing

Coupling capacitors find plenty of uses in analog applications and on differential protocols, acting essentially as high pass filters that remove DC bias carried seen on a signal. In the case of PCIe, there are a few reasons to place AC coupling capacitors on differential pairs beyond the fact that AC coupling capacitors are listed in the standard. In this article, we’ll look briefly at where to place coupling capacitors on PCIe links, as well as the reasons these are placed on PCIe links.

Tuning dialog
Blog
Altium Designer 22.7 Update

We are happy to announce that the Altium Designer 22.7 update is now available. Altium Designer 22.7 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!

The Positive Impact of Supply Chain Visibility on Design to Cost
Blog
The Positive Impact of Supply Chain Visibility on Design to Cost

Design to cost is a lofty idea that is only perfectly executed when supply and demand for components are in perfect harmony. Unfortunately, the current landscape for component sourcing makes design to cost more of a balancing act rather than an exercise in price reduction. To help designers in their efforts to balance cost, capabilities, and procurement, we created this ebook to help users understand how modern supply chain tools can help in these complex design problems.

Evaluating Stubs on PCIe Lanes
Blog
A Brief Study of Stubs on a PCIe Connector

Stubs are an important topic in high-speed PCB design, and there is a longstanding guideline that stubs should always be removed from all vias on high-speed digital interconnects. While stubs are bad for high-speed lines, they do not always need to be removed. What is more important is to predict the loss profile and frequencies, and to floorplan appropriately to try and prevent such losses.

Surface Layer DFM and Cleanup
Blog
PCB Layout Cleanup Before Manufacturing

Once you finish your placement and routing in your PCB layout, it can be tempting to wrap up the layout and send everything in directly to manufacturing. The reality is that the board may still need some work before it is considered finished. The cleanup you perform at the final stage of PCB layout will help you catch any outstanding errors that can't be programmed into your DRC engine, and it gives you a chance to add any outstanding details to the surface layers.

Low Cost and Professionally Built LED Panel
Blog
Insulated Metal Substrates: Building an LED Panel

In this project we’ll be building a moderate sized LED panel on insulated metal substrate (IMS). This light panel has three different white balance High CRI LED types on it, warm, neutral and cool. By changing the brightness of the different white balances, the light from the panel can be adjusted to match other lighting, making it perfect for film use - but also creating perfect lighting for electronics work. As with all my projects, this LED panel is open source, you can find the Altium project files over on my GitHub released under the permissive MIT License.

DFM For Your Materials
Blog
DFM in PCB Material Selection

Every design should begin with selecting the materials that will appear in the PCB stackup, as well as arranging layers in the stackup to support layout and routing. This section of our PCB manufacturing andc DFM crash course focuses on selecting the right materials for your PCB design. Materials should be selected given the particular design requirements outlined in your specifications.

PCB Layout for an BGA
Blog
How to Start an FPGA PCB Layout For Your Embedded System

FPGAs come in quad or BGA packages that can be difficult to floorplan, especially with the high number of I/Os often implemented in these components. FPGAs offer a lot of advantages in terms of their reconfigurability, but they can require a lot of effort to layout and route without headaches. If you’ve never worked with an FPGA in your PCB layout, we have some guidelines that can help you get started.

2-port VNA on a 3-port Network
Blog
How to Get 3-port S-parameters From a 2-port VNA Measurement

S-parameters are fundamental quantities in signal integrity, and an ability to understand them from measurement or analysis is very important. If you have a 3-port network, like a power divider or circulator, it may appear that you must use a 3-port VNA to measure these S-parameters. It is always acceptable to measure between two ports, but you need to know what exactly it is you are measuring. In this article, we’ll look at the relationship between the true 3-port S-parameters with a 2-port measurement.

Fab and Assembly Crash Course
Blog
A Day in the Life of the PCB Manufacturing Process

Before implementing design for manufacturing, it is important to understand the underlying process behind producing a physical PCB. Regardless of the various technologies present in each facility, a large majority of industry-leading manufacturers follow a specific set of steps to turn your design from a drawing in a CAD application into a physical board. In this article, we'll cover the basics that designers need to know as part of our crash course series on PCB manufacturing.

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

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

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

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

Alternative Pins
Blog
Altium Designer 22.6 Update

We are happy to announce that the Altium Designer 22.6 update is now available. Altium Designer 22.6 continues to focus on improving the user experience, as well as performance and stability of the software, based on feedback from our users. Check out the key new features in the What's New section on the left side of this window!

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

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

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Embedded thumbnail for Stackup Material Library
How to work with Layer Stack Manager
Stackup Material Library

In this video we will learn more about the Altium designers Layer Stack Mangers built-in materials library, and how to add new material and use it in our board stack. We will also look at how we can save the user materials to an xml format.

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How to create a PCB Footprint
Placing Footprint Pads

Every footprints needs proper pad placement to ensure trace connectivity. Placing pads is the first step towards footprint creation.

Embedded thumbnail for Setting the Transparency for Layers and Primitives
How-To's
Setting the Transparency for Layers and Primitives

Customize your workspace by setting the transparency of layers and primitives in the PCB.

Embedded thumbnail for Create New Via Types Using the Layer Stack Manager
How to work with Layer Stack Manager
Create New Via Types Using the Layer Stack Manager

In this video, we will learn how to create new via types using the Layer Stack Manager, and how to create new Routing Via design rules using the PCB Rules and Constraints Editor. We will also explore how to use the different types of Via during interactive routing.

Embedded thumbnail for How to Create a Copper Board Report
How-To's
How to Create a Copper Board Report

This video will show how to create a copper board report in your PCB which can be useful for copper balance in DFM process

Embedded thumbnail for Stackup Creation and editing
How to work with Layer Stack Manager
Stackup Creation and editing

This video shows how to view and edit the PCB Layer Stack, select materials and add new layers

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How to create a PCB Footprint
Configuring Your PCB Library

It is important to have accurate footprints to manufacture your PCB. Learn how to configure your PCB library to facilitate footprint creation.

Global parameters
What's New in 22.6
Quick Browsing of Parameters for a Board

Parametric information for your board is now conveniently available from the Properties panel. A single, convenient location with which to browse system, calculated and user-defined parameters, and place as needed in the form of special strings.

Global parameters
What's New in 22.6
电路板参数的快速浏览

您现在可以从Properties面板中轻松获得电路板的参数信息。可以在一个方便的位置,浏览系统、计算和用户定义参数,并根据需要以特殊字符串的形式进行放置。

Embedded thumbnail for How to Validate Links Between Components and Footprints
How-To's
How to Validate Links Between Components and Footprints

Before importing or updating data from the circuit to the board, you must first verify that all components of the circuit are associated with Footprint. Watch this video to learn how to validate the links between your schematic components and footprints.

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

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

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

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

Active Links in Text
What's New in 22.6
Active Links in Text

You can now specify active links to components and nets within a text frame object on a schematic. This handy navigation aid makes it much easier not only to read the document, but also to work with it.

Active Links in Text
What's New in 22.6
文本中的活动链接

您现在可以在原理图上的文本框对象中,指定指向元件和网络的活动链接。使用此导航辅助工具,即可轻松读取和处理文档。

Multifunctional Pins
What's New in 22.6
Multifunctional pins

You will often see that modern ICs consist of multi-functional pins. In this latest version of Altium Designer it has become far easier and much more convenient to work with such components.

Multifunctional Pins
What's New in 22.6
多功能引脚

常见的现代IC均由多功能引脚组成。在最新版Altium Designer中,我们能够更加轻松、方便地处理此类元件。

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