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PCB fabrication notes
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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.

Embedded thumbnail for How to Highlight or Select Net Connections in the PCB
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
Blog
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
Blog
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.

Embedded thumbnail for Via-in-Pad for BGA
How to Design a BGA
Via-in-Pad for BGA

We’ll teach you how to use Via-in-pad to reduce inductance, improve signal integrity, and improve power distribution system performance in BGA designs.

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How to Design a BGA
Using HDI Stackups during BGA Design

Micro Vias and Buried Vias play an important role in high density interconnection layer stackups (HDI Stackups). We’ll show you how to add via and create rules to allow you to take full advantage of the HDI Stackup.

Product Lifecycle Management in Electronics Manufacturing
Blog
Product Lifecycle Management in Electronics Manufacturing

An effective product lifecycle management (PLM) solution will integrate the tools and processes employed to design, develop and manufacture a new device. This solution goes beyond engineering activities to include the project management, process control, and financial management of the end-to-end business processes. PLM solutions create this collaborative environment where product development can flourish, bringing additional benefits in efficiencies and transparent communications, breaking silos, and speeding up the development process.

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On-Demand Webinar
Length Matching in High Speed Buses

With ever increasing speeds in high-speed data systems comes a couple of PCB layout challenges. High-speed busses like DDR, VME, PCIe just to mention a few can all reach data transfer speeds that require strict timing with very tight tolerances, thereby leaving very little slack in the PCB layout. Watch this on-demand webinar to learn why it's imperative to match track lengths in high-speed data systems and differential signals. You’ll see how to properly define PCB length matching and time delay constraints, and how to effectively route high-speed signals in Altium Designer®.

Tight versus loose coupling
Blog
Should You Use Tight vs. Loose Differential Pair Spacing and Coupling?

In this article, we want to get closer to a realistic description of tight coupling vs. loose coupling in terms of differential pair spacing, as well as how the differential pair spacing affects things like impedance, differential-mode noise, reception of common-mode noise, and termination. As we’ll see, the focus on tight coupling has its merits, but it’s often cited as necessary for the wrong reasons.

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How to Design a BGA
Automatic Fanout With BGA

When routing a BGA it can be necessary to use automatic fanout to make the routing process easier and faster. We’ll show you how to run the automatic fanout for routing a BGA and how the rules can affect the outcome of the route.

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How to Design a BGA
Specifying NSMD and SMD for BGA

BGA layouts use two types of pads: SMD, Solder Mask Pads, or NSMD, Non-Solder Mask Pads. Here we’ll walk you through the differences and how to specify and edit them for your layout.

Engineering Design Review Guide
Blog
How to Solve Your Engineering Design Review Challenges

You’ve possibly gone through plenty of engineering design reviews, both on the front-end of a project and the back-end before manufacturing. Engineering design reviews are performed to accomplish multiple objectives, and with many engineering teams taking a systems-based approach to design and production, electronics design teams will need to review much more than just a PCB layout and BOM. Today’s challenges with sourcing, manufacturability, reliability, and mechanical constraints are all areas that must be confronted in real designs

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Via Stitching
Via Shielding and Stitching

Altium Designer gives you full control over your via shielding and stitching. We’ll show you how to use our shielding and stitching tools, how to alter their parameters, and how to remove any unwanted via shielding and stitching.

Schematic Review Checklist
Blog
Schematic Review Checklist

One of the most common points of failure of a device occurs even before you start to layout your circuit board. Mistakes in your schematic design can easily make their way all the way into prototypes or production without a second thought once layout starts. In this article, I’m not going to extol the virtues of a good schematic design. Instead, this article is a simple no frills checklist.

Embedded thumbnail for xSignals for DDR3 and DDR4
How To Work with High-Speed Projects
xSignals for DDR3 and DDR4

In a high-speed design, DDR3 and DDR4 memory chips can utilize xSignal classes to match track lengths from the controller to the memory chip easily and quickly using the xSignals wizard.

Tag
Blog
Concept Phase – Initial CAD Design

We are continuing our journey through the open-source laptop project. This article explains an initialization of CAD design process from the early concept and brainstorming phase.

Blog
High-Speed PCB Design Tips

Essential tips for high-speed PCB designs, and when you need to start being concerned about how and where you route your traces.

Introduction to Open Source Laptop Project
Blog
Introduction to Open Source Laptop Project

We have started a very exciting journey into the creation of an open source laptop project. This project will be an ongoing one, with our community able interactively participate. By utilizing Altium 365 users will be able to view, comment on, and download design files. This will be a great learning experience for new and experienced PCB designers.

Blog
Ebook: Routing High-Density Interconnects with Reliable Microvias

HDI PCBs take a particular approach to routing interconnects through multiple layers to ensure reliability during fabrication, assembly, and operation. The critical structure that enables this is microvias, which are prone to failure if not designed properly. In this e-book, readers will receive an initial look at the reasons microvia reliability has come into the spotlight and why HDI PCB designers put reliability first when routing through microvias.

Blog
IPC-2221 Calculator for PCB Trace Current and Heating

Aside from impedance and annular ring calculations, one of the other major formulas specified in the IPC 2221 standard relates temperature rise, trace width, and trace current. THere is also the IPC-2152 standard, both include this guidance on designing for thermal reliability, but which standard should we use?

Blog
Stripline Impedance Calculator

Striplines provide some advantages over microstrips as they take advantage of natural shielding and coupling from nearby ground plane layers. Although they tend to experience higher losses due to total confinement in the dielectric, they can be thinner due to the high dielectric constant used in internal layers of a PCB. Use our free impedence calculator to help you determine the correct width needed to hit a target impedance.

Blog
Which Types of Opto-Isolators Are Right For Your Signal?

An optoisolator is a cool electronic device that can be used to pass information between a diode without passing an electrical current. There are many great applications for these, but do you know which one is right for you?

Blog
Properties panel document options in SCH editors

The Properties panel provides access to the properties of documents and objects. The contents of the panel change depending on the active document or the selected object. This blog will quickly go over some of need to know options around the properties panel in the schematic document.

High-Speed PCB Stackup Design
Blog
The High-Speed PCB Stackup Design Challenge

Even with all the good guidelines out there for high speed design, there are particular aspects of stackup construction and their relation to building boards that get overlooked. This blog is goes beyond just the typical SI/PI guidelines and looks at these problems from more of an engineering perspective.

stitching vias
Blog
Everything You Need to Know About Stitching Vias

Stitching vias are something you often see spread around the surface layer of a PCB, but what are they? and should you be using them? In this guide, we'll go over some of the standard uses of stitching vias and when they should be used in a PCB.

PCB Stackup Basics
Blog
PCB Stackup Basics

In comparison to the build-up of a PCB, the stackup is more concerned with the electrical type of each layer, that is are we working with signals, power, or ground. Continue reading to learn how you can optimize your layer stack.

Tag
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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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.

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.

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.

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.

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.

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.

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.

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.

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.

Embedded thumbnail for Cross Select Mode
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.

Embedded thumbnail for Tools for Efficient Selection
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.

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

Embedded thumbnail for How to Work with The Polygon Manager
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.

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.

Embedded thumbnail for How to Highlight or Select Net Connections in the PCB
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.

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