News & Updates
Blog
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SPI vs. I2C: How to Choose the Best Protocol for Your Memory Chips
One of the common implementations of SPI and I2C in a PCB layout is as a protocol for reading and writing to an external Flash memory. Flash chips are a very common component in embedded systems and can offer high capacities of non-volatile memory up to Gb values. When choosing a memory chip, you'll want to match the application requirements and functionality with the bus speed you need for read and write operations in your memory chip. There is also the matter of the type of Flash memory you'll need to access (NOR vs. NAND).
On-Demand Webinar
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Tips & Tricks: Board Shape Creation
Being able to design a board in your ECAD environment doesn’t mean that it is manufacturable in real life. You have to make sure your CAD representation won’t have any problems in the real world by taking some precautions. For example, there are certain areas that need to be free of components and have specified clearances like your board edge. This webinar will help you get acquainted with the creation and modification of your board shape so that you can ensure manufacturability.
Blog
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Is There an SPI Trace Impedance Requirement?
There is no SPI trace impedance requirement? The reality is that SPI lines only start to need impedance control when the length of the interconnect becomes very long. And because there is no specific impedance requirement in the bus, you have some freedom in channel design and termination. So what exactly qualifies as “very long” and when is some termination method needed? We’ll break it down in this article.
Blog
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The Skin Effect, Current Density, and the Electromagnetic Field
During this year's AltiumLive CONNECT event, I recall receiving an interesting question about the skin effect and the distribution of current due to the presence of ground in coplanar transmission lines. In this article, we'll look at the electric field around a transmission line carrying a signal, and how this might be impacted by the skin effect.
Blog
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What You Need for PCB Packaging and Shipping
When you get your PCBA back from an assembler, you’ll notice the packaging materials used to pack and ship the PCBA. Those materials are specific to electronics, and if you build products on behalf of clients, it’s important to know the packaging materials used for packing and shipping electronics. In this article I’ll show the main set of materials and equipment used to package electronics assemblies.
Blog
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How to Make PCB Gerber Files in Altium Designer Step-by-Step
Once you've got your PCB layout finished and you're ready to start preparing for manufacturing, one of the critical steps is to create PCB Gerber files. When you're ready to create your Gerber files, you need the right set of CAM processor tools that can take data from your PCB layout. In this article, we'll guide you through this process of how to make PCB Gerber files and show some example tasks you might need to perform to generate them.
On-Demand Webinar
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Help Ensure The Best Designs With Component Management
There are many aspects to designing a PCB. One of the larger aspects has to do with managing your components. We all need components for our designs, but are those components in our library and designs up-to-date or even purchasable? These questions need to be answered before we can safely use them. Altium Designer® has several tools to help you manage the components in your libraries and designs.
Blog
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Should You Place Teardrops on Differential Pairs?
One of the major factors impacting reliability of a PCBA is the use of teardrops on traces in the PCB. Like many aspects of reliability, the considerations also span into the signal integrity domain, particularly as more high-reliability products require greater data handling capabilities and run at higher speeds. In this article, I’ll break down the issues present in teardrop usage on differential pairs and how these may affect impedance.
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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.
Blog
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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.
Blog
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PCB Trace and Pad Clearance: Low vs. High Voltage
High voltage/high current designs carry safety requirements which need to be met by designers. Similarly, high speed designs need to have suppressed crosstalk in order to ensure signal integrity. The key design aspects that relate to both areas are your PCB trace clearance and pad clearance values. These design choices are critical for balancing safety, noise suppression, and manufacturability.
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.
Blog
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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.
Blog
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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.
Blog
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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.
Blog
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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.
Blog
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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.
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