News & Updates
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This one area of PCB design can be contentious among some designers as it is related to copper pour, which it is often stated is not needed in most designs. Regardless of your feelings about copper pour, stitching vias have important uses in PCBs at low frequencies and at high frequencies.
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The IPC-2221 standard includes many requirements for printed circuit board design and manufacturability, and there are several online calculators that have been developed based on this standard.
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When you’re ready to manufacture a new device at production volume, there are many aspects of the product that must come together. The enclosure, cabling and connectors, embedded software/firmware, and of course the PCBA all have to be considered in totality. There is a quick way to get your product into a usable enclosure, complete with input power and cabling, and with a form factor that fits your PCBA. This overused route to a new product is a box build assembly.
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It is essential to ask questions and review the design approaches used with your team. Design reviews are essential in the design process, but they can be inconvenient for team members and lack traceability or history. To create the best designs, you need review methods that are as cutting edge as the boards you're making.
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Printed circuit board fabricators have become skilled at manufacturing these technologies and also at understanding the reliability and producibility challenges associated with high-density-interconnect technology. Let’s look at where the PCB industry is at today.
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What can the industry do to support PCB designers as they continue taking a more active role in product development? Here at Altium, there has been a progressive shift towards looking at the system level and creating tools that get designers more involved throughout the product development process. As the saying goes, over the wall engineering is over… today’s most successful products are built in a collaborative process.
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As the 5G rollout progresses and researchers continue to discuss 6G, many new 5G-capable products operating in sub-GHz and mmWave bands are reaching the marketplace. Devices that will include a 5G-compatible front-end, whether small stations/repeaters or handheld devices, use phased arrays as high-gain antenna systems to provide high data throughput without losing range at higher frequencies.
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Via protection is an important part of modern PCB design. It provides additional benefits in PCB manufacturing and assembly, increasing the number of acceptable products.
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Version control systems (VCS) have been around for a long time in the software world but can be surprisingly new to some folks in the electronics design industry. Version control tools are great for tracking and maintaining entire codebases without the old-school copying, pasting, zipping, and emailing steps many PCB designers use.
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Power integrity problems can abound in modern PCBs, especially high-speed boards that run with fast edge rates. These systems require precise design of the PDN impedance to ensure stable power is always delivered throughout the system.
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The problems you can experience with components and libraries are endless. These problems are the most significant source of design issues and the biggest reason behind respins, costing companies untold amounts of lost profit annually.
If you want to have a better understanding of how to use Altium 365 to maintain a strong and centralized library that is free of problems and headaches, you may want to consider attending this lecture.
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As much as we would like to build every high speed PCB perfectly, with ideal SI/PI/EMI characteristics, it isn’t always possible due to many practical constraints. Sometimes a stackup can be “good enough,” even for a high-speed PCB. This always comes from the need to balance engineering constraints, functional requirements, and the need to ensure signal and power integrity in a high-speed design, and finally to ensure compliance with EMC requirements.
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Involving the whole team that will bring a product to completion early on in the development cycle is vital to efficient development. Design reviews with all the relevant parties are critical at each step of the design process, starting with high-level component selection, then through the schematic capture and PCB layout stages.
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Ergonomics and convenience are important issues when designing a printed circuit board and the device as a whole. A lot of Altium Designer tools are aimed at solving them. These include Countersink and Counterbore holes, which allow the use of various types of screws in the mounting holes of the board.
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The development of electronic devices always involves the release of many different types of files. And these files are not static - they change as the project progresses. When filling a project with data, a user creates new files, modifies outdated files that have become irrelevant. Managing project data is a separate task, especially for large developments where several participants with different specializations are involved in the process.
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High-speed PCBs often require tuning groups of tracks, both single and differential. Altium Designer includes powerful tools that allow you to solve such tasks quickly and with high quality. Study this document and achieve the desired result even faster.
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There is one confusion related to impedance matching that comes up again and again, and it appears to be a fundamental confusion between reflection and power delivery. This leads to an apparent contradiction that arises when we try to generalize power delivery to wave reflection, despite the fact that the two were not meant to be related.
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Routing is one of the most time-consuming stages of PCB design. Altium Designer has a large set of tools that allow you to do it as accurately and quickly as possible. This document will help you to learn how to manage your routing effectively and use it to its fullest extent.
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RF systems operate with specific impedance values across entire interconnects, including on PCBs. Not all RF components are packaged in integrated circuits with defined impedances, so impedance matching circuits and line sections are needed to ensure signal transmission between different sections of an interconnect. One of these impedance matching techniques is the quarter-wave impedance transformer, which can be implemented as a printed trace with specific impedance.
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We are happy to announce that the Altium Designer 22.10 update is now available. Altium Designer 22.10 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!
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A staff member at a PCB manufacturer once explained to me that they thought we were having an issue with a package warping. Unfortunately, component warping can occur both in a PCB and in components. In this article, we'll give an overview of warpage in a PCB, specifically in the circuit board and in the components.
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If you're designing a wireless IoT device, and you know how to calculate the link budget, you can reasonably estimate whether your signal will reach its destination and be read by the receiver. To calculate the link budget, the designer needs to know something about all other sources of gain and loss in the system. Once link budget is determined, the designer can judge whether some modification is needed in their RF signal chain.
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SMD components require precisely sized pads for soldering during assembly. The designer is responsible for ensuring pad sizes are correct, either by calculating them and comparing with footprint data, looking through datasheets, or by memorizing SMD pad size standards. If you have a component and you don't have access to the footprint, and you decide to biuld the footprint yourself, what resources are available to ensure you have the correct pad size?
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Before we get too deep into this article, I’ll give you the simple answer. You probably can’t fix warping in your PCB after it’s already been fabricated. You can prevent an unwarped board from becoming warped during assembly, but only as long as materials were selected properly and the board is put into reflow correctly. We’ll run over some of these points in this article, and I’ll examine some points that might help you recover a warped board.
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The eye diagram is a useful measurement or simulation as part of channel compliance. The measurement shows many different factors that can affect signal behavior simultaneously, ultimately allowing for qualification of errors and losses in a channel. In this article, I’ll run over some of the fundamental measurements that you could manually extract from an eye diagram and how they reveal some strategies for improving channel designs.
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To readers who have been working in the PCB industry for most of your career, you have probably seen a very diverse group of professionals with varied skill sets and backgrounds. Designers might get started as engineers or as technicians, and some designers learn how to create beautiful PCB layouts in university. No matter how you got into PCB design, there are some important skills to know that will take you a long way towards advancing your career.