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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
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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
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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.

PCB fabrication notes
Blog
Decoding PCB Fabrication Notes

Sending a board out for fabrication is an exciting and nerve-wracking moment. Why not just give your fabricator your design files and let them figure it out? There are a few reasons for this, but it means the responsibility comes back to you as the designer to produce manufacturing files and documentation for your PCB. It’s actually quite simple if you have the right design tools. We’ll look at how you can do this inside your PCB layout and how this will help you quickly generate data for your manufacturer.

Embedded thumbnail for Assigning Impedance Profiles for Differential Pairs
How to Work with Differential Pairs
Assigning Impedance Profiles for Differential Pairs

When you assign an impedance profile to a differential pair you open up several options for control over your routes. We'll show you how to do just that, as well as how to fix errors that may pop up and how to create classes for differential pairs based on assigned impedance profiles.

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How-To's
How to Highlight or Select Net Connections in the PCB

We’ll show you how to highlight net selections so you can easily track where connections are made. We’ll show you how to hide and show nets, and how to use the view configuration and PCB panels to view and highlight nets across your design, and how to assign net colors in both the PCB and the schematic.

HDI PCB design and HDI PCB manufacturing process
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Design Basics for HDI and the HDI PCB Manufacturing Process

As the world of technology has evolved, so has the need to pack more capabilities into smaller packages. PCBs designed using high-density interconnect techniques tend to be smaller as more components are packed in a smaller space. An HDI PCB uses blind, buried, and micro vias, vias in pads, and very thin traces to pack more components into a smaller area. We’ll show you the design basics for HDI and how Altium Designer® can help you create a powerful HDI PCB.

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How to Design a BGA
Remove Unused Via Pads

The Remove Unused Pad Shapes tool in Altium Designer gives you control over the via pads in your design. We’ll show you how to use it to increase the usable area of power and ground polygons, increase the density of conductors between hole rows, and fixing incorrect connections.

All About PCB Test Points
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Is It Printed or a Component? All About PCB Test Points

Test points in your electronic assembly will give you a location to access components and take important measurements to verify functionality. If you’ve never used a test point or you’re not sure if you need test points, keep reading to see what options you have for test point usage in your PCB layout.

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How to Design a BGA
Tent Vias under BGA

When via are located close to component pads some soldering issues can arise, but this can be fixed with Tented vias. We’ll show you how to manually tent vias and how to tent vias through the Design Rules.

How to Design to a Differential Impedance Specification
Blog
How to Design to a Differential Impedance Specification

The concept and implementation of differential impedance are both sometimes misunderstood. In addition, the design of a channel to reach a specific differential impedance is often done in a haphazard way. The very concept of differential impedance is something of a mathematical construct that doesn’t fully capture the behavior of each signal in a differential trace. Keep reading to see a bit more depth on how to design to a differential impedance spec and exactly what it means for your design.

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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.

Three ways to manage your BOM costs
Blog
Improving Supply Chain Success with BOM Management

It’s no secret that component shortages have become more frequent this year. In fact, countries around the world are losing billions in revenue due to supply issues. Having the right components on hand is more crucial than ever as availability, obsolescence, counterfeit products and environmental non-compliance risks continue to grow. Fortunately, many shortages can be avoided by introducing proactive supply chain practices.

Length Tuning Impedance
Blog
What is the Impedance of Length-Tuning Structures?

Do length-tuning structures create an impedance discontinuity? The answer is an unequivocal “yes”, but it might not matter in your design depending on several factors. Applying a length-tuning structure is equivalent to changing the distance between the traces while meandering. Therefore, you will have a change in the odd-mode impedance of a single trace. The question then becomes: does this deviation in trace impedance in a length tuning structure matter?

Designing the Next-Generation Electronics
Blog
A-SAP™ – What do you need to know?

The continued miniaturization of both packaging and component size in next-generation electronics is becoming harder and harder to work around and presents a significant challenge for both PCB designers and PCB fabricators. To effectively navigate the constraints of the traditional subtractive-etch PCB fabrication processes, PCB designs require advanced PCB fabrication capabilities while pushing the limits of finer feature size, higher layer counts, multiple levels of stacked micro vias and increased lamination cycles.

Pin-package and Via Delay Values
Blog
Pin-Package Delay and Via Delay in High Speed Length Tuning

Take a look at the inside of some integrated circuit packages, and you’ll find a number of wires bonded to the semiconductor die and the pads at the edge of the component's package. As a signal traverses makes its way along an interconnect and into a destination circuit, signals need to travel across these bond wires and pads before they are interpreted as a logic state. As you look around the edge of an IC, these bond wires can have different lengths, and they incur different levels of delay and contribute to total jitter.

6-Layer PCB Design
Blog
6-Layer PCB Design Guidelines

Once you’ve run out of room on your 4-layer PCB, it’s time to graduate to a 6-layer board. The additional layer can give you room for more signals, an additional plane pair, or a mix of conductors. How you use these extra layers is less important than how you arrange them in the PCB stackup, as well as how you route on a 6-layer PCB. If you’ve never used a 6-layer board before, or you’ve had EMI troubles with this stackup that are difficult to solve, keep reading to see some 6-layer PCB design guidelines and best practices.

Altium Designer Interface
Blog
Altium Designer 22.5 Update

We are happy to announce that the Altium Designer 22.5 update is now available. Altium Designer 22.5 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!

Are Hybrid PCB Stackups Reliable?
Blog
How Reliable is Your Hybrid PCB Stackup?

PCB stackups often incorporate slightly dissimilar materials that could pose a reliability problem. Hybrid PCBs are one case where the PCB stackup will include different materials, typically a standard FR4 laminate and a PTFE laminate for RF PCBs. Designers who want to take the lead on material selection when designing their hybrid stackups should consider these factors that affect reliability. As with any PCB stackup, make sure you get your fabricator involved in the manufacturing process early to ensure reliability problems do not arise during production.

Monte Carlo vs Sensitivity Analysis
Blog
Monte Carlo Simulation vs. Sensitivity Analysis: What’s the Difference?

In a previous article about circuit simulation and reliability, I looked at how Monte Carlo analysis is commonly used to evaluate circuits that are subject to random variations in component values. Sensitivity analysis is a bit different and it tells you how the operating characteristics of your circuit change in a specific direction. Compared to a Monte Carlo simulation, sensitivity analysis gives you a convenient way to predict exactly how the operating characteristics will change if you were to deliberately increase or decrease the value of a component.

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Embedded thumbnail for Calculating Impedance in Altium Designer
Impedance calculation
Calculating Impedance in Altium Designer

This video covers how to calculate impedance in Altium Designer. This is especially important when dealing with high-speed designs. You want to make sure impedance is matched to avoid any reflections and maintain good signal integrity.

Embedded thumbnail for Using 3D Component Body Features for Precise Component Creation
How to Work with 3D Mode
Using 3D Component Body Features for Precise Component Creation

Learn to quickly and accurately place 3D models of components on their footprints

Embedded thumbnail for How to Define an Impedance Profile for an Assymetric Stripeline
Impedance calculation
How to Define an Impedance Profile for an Assymetric Stripeline

This video shows how to define an impedance profile for an asymmetric stripline.

Embedded thumbnail for How I Improved my Collaboration Efficiency with Altium 365 | Altium 365: Power User Insights
How I Improved my Collaboration Efficiency with Altium 365 | Altium 365: Power User Insights

Collaboration with other teams or contractors in the electronics industry is typically a painful and inefficient experience. All too often, communication is left until the last minute when boards are all but ordered. Let's talk about how to collaborate with colleagues with Altium 365 in a different way.

Embedded thumbnail for Working with Annotation Tools
How to Work with Draftsman
Working with Annotation Tools

Draftsman Documents provide annotation tools to convey physical properties such as tolerances and surface finish

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How to Work with 3D Mode
3D View Control

Learn how to use the 3D display mode of the PCB and learn to control the camera in this mode in this video

Embedded thumbnail for Impedance Calculation Single-Ended Transmission Lines
Impedance calculation
Impedance Calculation Single-Ended Transmission Lines

Transmission lines help preserve signal integrity and reduce EMI in high speed designs. We’ll show you you to define your single ended transmission lines in Altium Designer and automatically calculate impedance on a two layer and multi-layer board.

Embedded thumbnail for Working with Dimensions: Draftsman Documents
How to Work with Draftsman
Working with Dimensions: Draftsman Documents

Draftsman Documents provide dimensioning tools to capture and display the physical features of the product for fabrication and documentation. 

Embedded thumbnail for Impedance Calculations: Differential Pairs
Impedance calculation
Impedance Calculations: Differential Pairs

Altium designer makes it easy to calculate geometry when you need to calculate impedance for differential pairs. We’ll go over how differential pairs can help with a two layer and multi layer board, as well as what types you can create such as differential co-planar, and how to configure them for your specific design.

Embedded thumbnail for Creating and using templates
How to Work with Draftsman
Creating and using templates

Draftsman Templates are a quick way of laying out your Draftsman Document in Altium Designer. We’ll show you how to utilize them and the differences between sheet and document templates.

Embedded thumbnail for Adding 3D Assemblies to a Multi-Board Project
How to work with Multiboard
Adding 3D Assemblies to a Multi-Board Project

The next step in the multiboard design process is adding 3D PCB Assemblies. We’ll show you how to add them to your design and how to work with the Assembly Editor.

Embedded thumbnail for Altium 365 - Design Collaboration | Tasks
Getting Started with A365
Altium 365 - Design Collaboration | Tasks

The Tasks feature brings lightweight task tracking to further enhance design collaboration in Altium 365. With Tasks, you will never lose an important action item and easily gain a high-level view of the state of your project, all without leaving your design environment. 

Embedded thumbnail for Adding Additional Views in a Draftsman Document
How to Work with Draftsman
Adding Additional Views in a Draftsman Document

If you need additional views in your documentation, Altium Designer’s Draftsman Document editor can help. We’ll show you how to add and configure different views including the component view, the section view, the detail view, the isometric view, variants, the legend for the layer stack, the board region view, and the board realistic view.

Embedded thumbnail for Draftsman Document Views - Fabrication and Drill Drawings
How to Work with Draftsman
Draftsman Document Views - Fabrication and Drill Drawings

The Draftsman Document Editor allows you to add a fabrication view and a drill drawing view to your outjob files. We’ll show you how to get them set up and details you can control from the properties panel.

Embedded thumbnail for Altium 365 - Version Control | Project History
Getting Started with A365
Altium 365 - Version Control | Project History

Project History in a Nutshell: - Presents events in a chronological timeline (Creation, Commits, Releases, Clones, and MCAD Exchanges) - Auto-generates Differences Summary to view the differing entities (e.g., replaced components) - Even a non-expert can act on a revision (Download, View, Revert)

Embedded thumbnail for Resolving Conflicts in Multi-board Schematics
How to work with Multiboard
Resolving Conflicts in Multi-board Schematics

When mismatched pin names in your multi-board schematic cause disconnects and conflicts you can use Altium Designer’s tools to resolve these conflicts. We’ll show you the Connection Manager and the various solutions to solve your connection issues.

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