News & Updates
Blog
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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.
Blog
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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.
On-Demand Webinar
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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.
Blog
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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.
Blog
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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.
Blog
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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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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.
On-Demand Webinar
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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.
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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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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?
Blog
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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.
Blog
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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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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?
Blog
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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
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CoDesigner and MCAD Component Placement On-Demand Webinar
Learn how to place components from the MCAD side and synchronize them with Altium Designer ECAD models, designators, and sourcing data to simplify your design process.
Blog
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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.
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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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PCB Via Current-Carrying Capacity: How Hot is Too Hot?
Trace and via current-carrying capacity are legitimate design points to focus on when designing a new board that will carry high current. The goal is to keep conductor temperatures below some appropriate limit, which then helps keep components on the board cool.
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How to Maximize Copper in Your PCB Design: The Pros and Cons of Copper Pouring Versus Placing
There is a saying in copper pour PCB design, “Copper is free.” It means a PCB editor designer must think in reverse. A board starts off as solid copper, and the copper you don’t want is removed. It is faster to build, less consumptive, and less expensive to make a board that is mostly copper as compared to the same size board that is mostly bare. Picking the correct technique will make the difference between an effortless or frustrating experience.
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Top 5 PCB Design Guidelines Every PCB Designer Needs to Know
What’s the key to designing a board that’s realistic on paper and in physical form? Let’s explore the top 5 design guidelines that you need to know to design your next manufacturable, functional and reliable PCB.
Blog
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May 14, 2020
How to Highlight Nets in Altium Designer to Simplify Schematic and PCB Designs
Highlighting nets will help you simplify your schematic and PCB design. In Altium , there are multiple options that enable you to leverage this capability to simplify the verification of connections and circuit paths and make sure that the design you send to your manufacturer accurately reflects the printed circuit board you need built.
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May 12, 2020
Keep Your Altium Designer PCB Layout in Line with Grids and Grid-Selection Shortcuts
The grid system in a printed circuit board design CAD system really is your friend, and if you haven’t taken the time to get properly introduced yet let me help you with that.
Blog
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May 7, 2020
How to Panelize Your PCBs Before Lunch with Altium Designer
Whether you have a slew of PCBs to mass produce for your customers or a handful of project boards you wish to prototype all in one simple swoop, panelization is an effective way to bring high amounts of efficiency to your production.
Blog
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May 5, 2020
Helpful Tips for Interactive Routing in Altium Designer
Before you jump into the software, you should know the types of things you’re going to want to look out for. Traces, connection lines, differential pair routing, and route paths can all affect the routing process of your board. Make sure that you’re equipped knowing, ultimately, what you want your board design to accomplish and furthermore, where you anticipate potential problem areas to be.
Blog
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May 1, 2020
Altium 365 + Altium Designer 20.1 Released Today - Work from Anywhere, Connect with Anyone
In our efforts to bring the best experience to the PCB design process, we are proud to announce the release of Altium Designer 20.1, Altium 365, and Altium NEXUS Client 3.1. This release enhances the design experience by bringing the convenience and benefits of the Altium 365 cloud platform to Altium Designer.
Blog
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Apr 27, 2020
Introduction to High Speed PCB Designing: How to Eliminate Crosstalk
Crosstalk on your PCB layout can be disastrous. If not corrected, crosstalk can cause your finished circuit board to either not work at all, or it may be plagued by intermittent problems. Let’s take a look at what crosstalk is and what you can do to prevent it.
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