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PCB Routing
Microvia Technology and Beyond for HDI Design
HDI PCBs, ultra-HDI, packaging, substrate-like PCBs, and highly advanced chip-on-board can all require microvia structures once electrical connections become very dense. In these designs, higher density chipsets and packages have driven the demand for more advanced fabrication capacity that can support microvias into advanced stackups. But in addition to microvias in standardized HDI stack ups, there are more advanced interconnects available for
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48
New Snapping Options
Enhanced snapping options allow for a smooth and controlled design experience for both routing and placement.
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Clearing Up Trace Impedance Calculators and Formulas
While it might not be obvious to the casual or to those who think the mathematics underlying PCB design is largely settled, there is plenty of disagreement regarding the right formula to calculate trace impedance. This disagreement extends to online trace impedance calculators, and designers should make themselves aware of the limitations of these tools. The Problem with a Trace Impedance Calculator If you use your favorite search engine to find
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Datasheet Reliability with Ben Jordan
In this OnTrack episode Judy Warner and Ben Jordan discuss about Datasheet Reliability. Can you trust them? And what does “Gilded” mean? This & more about verifying app notes. Watch the full episode.
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PCIe Card Guides: BGA Fanouts and Escape Routing
With all the chips that appear on a PCI or PCIe card, laying out and routing these boards might seem extremely complicated. However, the standardized architecture of PCIe provides considerable flexibility for designers. One issue that is a bit complicated is PCIe BGA fanouts for components on these cards. The trick to implementing a fanout and escape routing strategy is ensuring that you comply with the PCIe layout and routing specifications
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Standard PCB Thickness and Your Layer Stack
I’ll confess that I love 1990’s sitcoms. If Jerry Seinfeld were a PCB designer, he would probably ask “what’s the deal with the 1.57 mm board thickness?” It’s a fair question after all, and it makes you wonder why some standard values (e.g., 50 Ohms impedance in RF systems ) are used in PCB design and other areas of engineering. There are good reasons why these and other design values have become in standardized in PCB design, even if they aren't
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The Essential Tools You Need for PCB Design
Whether you’re building a house or building a PCB, you need the right tools in your toolbox. Every designer needs to have CAD tools for component placement, but even command line-based CAD software can be used for accurate component placement. With modern electronic devices becoming more complex at all levels, designers need tools that help expedite essential design tasks. Choosing the right set of PCB design tools requires weighing a number of
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LVDS PCB Layout Guidelines for Ensuring Signal Integrity
When you first get started in high-speed PCB design, you'll spend a lot of time encountering and understanding an alphabet soup of acronyms. MIPI, USB, PCIe interface, SATA PCB layout... the list of acronyms used to name high-speed digital interfaces is long. Low-voltage differential signaling (LVDS) is an older interface that was standardized for differential data transfer at high speeds, but it remains in use today for a variety of imaging and
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Routing Topology Configuration in PCB Design for Power, Data, and Peripherals
Which PCB routing topology matches with which technologies? Take a look at this article to learn more.
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Selecting FR4 Alternatives of PCB Substrate Materials for Multilayer Boards
You don’t have to settle for FR4 for your next multilayer PCB. Read more on selecting other PCB substrate materials.
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All About CMOS, ECL, and TTL Propagation Delay in High Speed PCBs
I still remember the 386 hand-me-down computer my parents gave me as a kid. It was useful for writing simple QBasic programs and spending hours playing computer games, but the computers of today leave my old 386 PC in the dust. With further development of computer architecture and the demands of more modern devices, the propagation delay in logic circuits becomes an important design parameter in a number of systems. In particular, TTL propagation
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Tips for High Frequency PCB Design in Embedded Systems
Today's high-speed embedded systems incorporate diverse functionality, components, digital interfaces, and of course, wireless/RF signaling. If you're designing embedded systems with any level of computing power that also includes an analog front end, then you have multiple mixed-signal design challenges to overcome. Whether it's a simple sub-1 GHz radio connection, Wifi/BLE, or multi-gigabit Ethernet, embedded systems need some way to interface
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PCIe Layout and Routing Guidelines
Opening up a computer as a kid and staring at the complicated mess of card slots, chips, and other electronics on a motherboard always made me wonder how anyone could keep all the details about PCB layout straight. Learning more about PCB design for computer architecture and peripherals made me appreciate the dedication PCB designers have for building great electronic devices. Modern GPU, USB, audio, and networking cards can all run on the back
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How to Reduce and Remove Noise In Analog Signals From Your PCB
On my 12th birthday, I received my very own stereo system, complete with 4 speakers, a CD changer, and a tape deck. My parents found my taste in 80s hair metal pretty annoying, but I couldn’t get over the annoying hum coming from the speakers after a CD ended. Noise in analog systems, and analog noise in general, can present serious problems in a number of applications. Examples include systems for precise measurement, power systems, and radios
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The Right Auto Routing Algorithms Can Make or Break Your Next PCB
Staying on top of every algorithm required to solve complex technical challenges is a job in itself. If you’re a competent programmer, you’ll see how to scale different algorithms up to any level, including auto routing algorithms. But with the right EDA software, you won’t have to keep re-inventing the wheel. Using an autorouter to help layout your next PCB can help you save time and can save your sanity. Unfortunately, auto routing algorithms
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PCB Design Guidelines for Analog Circuits
Designers should take note of some important PCB design rules for analog circuits and mixed-signal systems. Here are some important analog PCB layout guidelines.
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43:36
Speed Up your Routing Phase with Altium Designer with David Marrakchi
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