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PCB Design
Optimize PCB Designs Before Product Development With Clear Client Requirements
I swear I clearly heard my son asking for a McFish in his Happy Meal. But when he insisted that he asked for nuggets, I had no choice but to buy another set, although I strongly suspected he was just after the toys. This may not exactly be what you’d call “good parenting” but it is a great example of how misunderstandings can occur when you don’t get requirements jotted down on paper. While the cost of not paying attention to my son simply cost
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Raise the Volume: How To Design A Signal Amplification Device
When you’re used waking up to your baby’s loud cries in the middle of the night, you can sleep through any alarm clock. After a few months of babysitting, you stop hearing any alarm that isn’t amplified by a loudspeaker. Even in electronics, signals sometimes need to be amplified before being processed by microcontrollers. For example, audio signals and inputs from certain microsensors might require amplification before they can be processed by
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How to Test For a Short Circuit on a PCB
Wondering how to find ground on a circuit board? Looking for a circuit board tester? Clear and simple steps on how to test for a short circuit on a Printed Circuit Board.
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PCB Design Limitations Beyond Borders: Extending Past Edge Clearance
Have you ever stood, two feet planted, on the edge of a cliff? No, not a very steep slope that would slightly injure you if you fell, I’m talking about the 90-degree style, 2,000 feet straight down cliffs you see pictures of in National Geographic. Certainly a terrifying experience, no matter how seasoned you are at cliff standing. The thoughts that race through your mind are non-stop and extremely primal. Will my feet slip if I get too close
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A Big Kick in PCB Interconnect Solutions: Multi-Board Best Practices
I’ve always enjoyed thinking about circuits similar to tiny cities. Copper routing as the streets, components as building structures, vias, and the following electrons as the inhabitants running around. But imagine what PCB would be in the city from Inception where the flat ground starts turning on its head and extending overtop, or if Salvador Dali became a city planner. In today’s world of densely packed components (HDI), advanced manufacturing
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Where Do They All Go? PCB Layout Component Placement Guidelines
When I first learned how to play “Hearts,” I was always worried about how to pass those three cards right off the bat. What if I helped who I was playing against? I got the hang of it eventually and with enough games under my belt. I could recognize card patterns to make the best choices, but until I got to that point it felt like I was throwing random cards across the tables. My PCB design wasn’t too far off from my card strategy there, in
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Wet and Dry PCB Etching Solutions: Which Process is the Right Solution?
I have always been a very visually-oriented thinker. When I was much younger, I used to look up maps to video game levels online and put a sheet of tracing paper up against the screen to copy them down. The Zelda games specifically would always leave me with a notebook full of maps and, on the more challenging dungeons, color-coded warnings. If I sneezed once in my tracing process or the screen moved or I was called away mid-tracing, my map would
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Properties of Semiconductors: Electrodeposition, Gas Sensors, and PCB Devices
I started working with gas sensors 10 years ago—my team had several ideas on how to improve the performance of our devices by integrating semiconductor nanomaterials into our PCB-based sensors. We were familiar with various electron, barrier heights, valence electrons, conduction band and the semiconductor interface. We were all masters of electrodeposition and masters of gas sensors in our own right, and we had the idea to integrate the two
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Sooner or Later, Your PCB Design Layout Will Need Rework
I woke up last Saturday morning eager to get started on my latest backyard project. First, a trip to the hardware store for supplies, and then spend the rest of the day working on the project. Or at least I thought that I had it all planned out until my wife reminded me that I had promised to help her with some other chores. The proverbial rug of my weekend project was yanked out from under me by the classic “honey-do” block. Since I had, in fact
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Step Up Your Game: Multi-Board Versus Multilayer Designs
Sometimes, a circuit board gets too cramped and has too many layers for its good. Highly cramped assemblies and higher layer counts generally increase costs, and you can't always enlarge a board just to fit everything into your mechanical constraints. Things like enclosures, connector placements, attached mechanical or electrical components, and the like all limit what you can do inside the space you are given. What's the difference between a
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Practice Makes Perfect: Testing and Verifying Electronic Component Assemblies during PCB Design
When I was younger, well much younger, I had dreams of one day being a pro athlete. I wanted to be the guy who scored the winning touchdown, knocked in the winning run or hit the buzzer-beater. Although I never made to the professional level, I did have some success and I learned a lot. The most important thing was the results you achieved were strictly tied to your preparation. In other words, if I wanted to do well in the game I had to test
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Op-Amp Layout Guidelines for Noise Reduction in Your PCB
I remember my younger self daisy chaining a stereo system and powered speakers to try and get that perfect sound. You quickly realize the power of amplifiers and the havoc that multistage amplifiers can wreak on your favorite music. I was specifically reminded of a fundamental component: operational amplifiers. Op-amps are particularly useful devices in a PCB design and they form the basis of many devices that make modern life possible. As op
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High Current Board Design and its Real World Applications
With the rise of PCB applications stretching far and wide, designs are being created for applications that extend past simple signal integrity solutions. Advancements in material technology, PCB manufacturing capabilities, and the rising demand for PCB design is opening up the floor for many industries that otherwise have been dormant in the PCB world. Many limitations that were not present a handful of years ago are beginning to loosen. Of
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The Advantages and Disadvantages of Designing with Breadboards
Breadcrumbs, breadboards, and breadwinners. One of which has electronic components. Two of which will provide you with a delicious and nutritious meal enough to feed a family. The first, will provide you with the foundational playground to which your printed circuit board board design will spawn from. I will save you time, effort, and many awkward encounters by telling you that if you go around trying to stick jumper leads into breadwinners
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PCB Manufacturing Ebook
Printed circuit boards have a huge foothold in our lives. They are found in everything from our TVs and computers, to our washing machines and watches. As a PCB designer, you understand the blood, sweat, and tears that make every board and the devices they serve a reality. It's rare that any PCB project goes smoothly from start to finish. However, there are a number of steps you can take to increase the efficiency and reduce the number of hiccups
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PCB Designers for SpaceX and Beyond: Yesterday’s Fiction, Tomorrow’s Reality
I’ve wanted a career in engineering for as long as I can remember. There were people who could MacGyver something out of nothing and I wanted to be one of those people. I’m sure that watching science fiction on TV added a lot to that. I mean, who wouldn’t want to manipulate technology and control immense power like “Scotty” on Star Trek? I found out that I’m not alone in those dreams—apparently, Scotty was the inspiration for much interest in
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How to Create a Bill of Materials That Meets Your Needs
Sometimes when pressed to answer a question that I’m not prepared for like, “what do you want for your birthday”, I’ll respond flippantly; “small stacks of hundreds please!” I don’t even remember where I got this quote from, but I tend to use it a lot. It often kills the conversation and in the case of my wife, it earns me an immediate “annoyed wife glare” in response. Wouldn’t it be nice though if just for once someone actually honored my
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