Unified Design

Browse our library of resources to learn more about unified design strategies for PCB design engineers.

The Difference Between Breadboard Projects and Prototype Layouts I was just making myself some lunch and cutting up some fixin’s for a sandwich when it occurred to me that I was using a breadboard. Although I’ve always thought of it as a cutting board, it is actually what my grandmother would have called a breadboard; a flat piece of wood for slicing bread. For those of us in the electronics world, a “breadboard” is something very different. So, I decided to look it up. I was surprised to learn that in the Read Article

From Shack to Shed: What is a Bill of Materials and How Does it Help I’m planning on building a new utility shed in my backyard; the original shed was old and worn out when I first bought the house 20 years ago and it absolutely has to be replaced now. In fact, if it wasn’t for the thick coating of rust that seems to be protecting it, I’m not sure that it would even be standing anymore. I haven’t used a hammer and nails in my PCB designs before, so I ordered some plans on how to build this “Deluxe Backyard Storage Read Article

Soup-Up Your CAD Tools as a 64-Bit PCB Designer For all the hazards that come along with older cars—rips in their vinyl, paint missing, smoking, rusted frames, and oil leaking—I will admit they are fun. I owned a 1969 Chevy Impala and for all the bad, one thing going for it was that it had been built to go fast. Even though it had a 4 barrel Quadrajet carburetor on a 350 cu in small block driving 350 horses into a Muncie 4 speed transmission, it still would only carry 6 people (well, and the Read Article

Keep Your PCB Assembly and Production Processes Like Your Best Pants: Seamless I lost a button on an old pair of jeans the other day and I was totally unable to repair it. The seams were all sorts of wonky, and while normally you can find extra buttons along the waist there were none to be found. My mom taught me to always check the seams, but sometimes it’s easy to get lazy and forget to do some of the most basic procedures when you want to get an otherwise grueling experience done with. Some brands are more trustworthy Read Article

Learning Current Density: Don’t Pop the Balloon One area of PCB design that probably does not get the attention that it deserves is current density. Current density in a PCB trace is much like the pressure in a balloon. You want to squeeze as much air into the balloon as you can, but if you put too much: boom! The same is true of PCB traces many times. We want the traces to be as small as possible yet carry the most current possible, and if the trace carries too much: boom! For PCBs, that boom Read Article

Not That Much Force: Software for Updating PCB Layouts The other night I went to see the new Star Wars movie, “The Last Jedi," and although I really enjoyed the movie I found myself laughing out loud during one sequence. I wasn’t laughing because of the humor of the movie, or a silly looking alien—there were plenty of those to go around already. Instead I was laughing because for one brief sequence they showed some electronic circuitry that appeared to be composed of what looked like thru-hole Read Article

Riding the Wave: When Wave Soldering is the Best PCB Soldering Process Everybody loves the beach and I am no different. Sitting on the edge of the ocean being mesmerized by the ebb and flow of the water is a favorite pastime of mine. This is especially true when there are surfers riding the waves. It is awesome to watch a huge wave appear intent on engulfing them only to see them emerge upright on their boards having ridden the wave towards the shore. However, when too many surfers are bunched together they are Read Article

The Best PCB Routing Software Helps You to Finish Your Design on Time When my first child was young, my wife and I didn’t have a lot of income. It took everything that we had to pay the rent and put food on the table. When it came time for Christmas I really wanted to buy my boy a present, but I didn’t have any extra money to spend. That was a really humbling moment when I couldn’t even afford an extra couple of bucks for a toy. Fortunately, my wife had been saving money all along in preparation for Christmas. When Read Article

Don’t Just Resolve Your New Year, (PCB) Design It History contains many valuable lessons to learn, but this is the time of year when many people consider the future. You deserve some congratulations for going through your 2017: you learned new designs, tackled challenges, and did everything in your power to make 2017 your most successful year yet. The only thing left for 2018 is reaching higher and accomplishing even more. Don’t let yesteryear’s success limit your current ambition; keep pushing Read Article

Bill of Materials for PCB: Part Numbers and Organization, or Packing Tetris? It would be great if spending a day at the beach didn’t require gathering towels and chairs, fixing a lunch and making sure there was enough sunscreen to go around. Swimsuit selection, packing up and traveling are also unpleasant chores. It would be nice to just think “beach” while sitting on the couch, and suddenly be comfortably working on a tan with your toes in the sand. That’s the thing about organization though; it’s what really gets us Read Article

Order Up! Finding Your Chef Voice in Mixed Voltage PCB Design I was watching a cooking program on television the other day when I noticed how chefs always seem to be yelling whenever they need something or are demanding another kitchen staff to do something. It started to dawn on me how much of a mixture a kitchen has to be: there have to be all sorts of people who are both capable of being quiet and listening, and being loud and giving orders when something needs to get done. When you stop to consider all Read Article

Taxes Aren't All You'll Pay Without PCB Manufacturing Process Reviews Some people are afraid of spiders or snakes and I’m afraid of those too, but one of my worst fears is being audited. Now it’s time to start getting organized again and collect on all of my organization last year to make reviewing my notes and preparing for taxes easy. But, wait: my drawer full of notes and important receipts is also full of assorted shopping lists, grocery receipts, home repair goals, and that list I wrote in February for a Read Article

Listen to the Baby: Use Circuit Board Visual Indicators for Serviceability I’m a new dad and let me tell you: it is tough. I know everybody always tells you about the two sides of parenting, but I hadn’t really taken it to heart until now. That happy, sleeping, cuddly infant is around for about forty minutes after being fed, and then the crying begins. Sometimes, the problem is the milk temperature, sometimes a wet diaper, and sometimes because they feel like crying. In my years alive, I never anticipated being grateful Read Article

Your PCB Bill of Materials Report Can Be So Much More Than a Simple Statement I just finished going through my bank balances and I am very grateful for the online utilities that my bank provides. It used to be that you could only get an account statement in the mail from your bank that you had to reconcile with your checkbook. Today’s online banking systems are far superior with different utilities to help you track and organize your finances. With these tools you can move money around, create and monitor budgets, as do Read Article

What’s Worse: Holes in Your Winter Gloves or Copper Layer Defects? Much of the United States is going through a remarkably cold period right now; as I write this there is only about 10% of the country experiencing temperatures above freezing. It was a true, white Christmas for many; however, not the white that most expect: instead of snow, they got ice. Living in areas where the temperature can vary by up to 40℉ in a day means dressing in layers. If you’re anything like me, you’re still mastering the art of Read Article

Avoid Loose Signals With Successful Coin Acceptor Programs It’s been cold as an ice cube in an igloo lately, and the only thing that’s keeping my hands warm in the morning is my coffee. You know it won’t be a good day, though, when you’re getting a hot latte from a vending machine and the vending machine eats your coins. I end up with frozen hands and a caffeine headache by 10 am, or I end up having to reroute my whole morning just to run to another cafe. I understand that vending machines fail sometimes Read Article

No Icebergs Here, Captain! Board Rule Checking for Bill of Materials Management You know the story of RMS Titanic and how just before midnight on April 14th, 1912, it struck an iceberg in the Atlantic Ocean and sank. What you may not know though is how one small item may have saved the ship from sinking. During the inquiry, one of the surviving crew members who was a lookout reported that they did not have a pair of binoculars to use in the crow’s nest. When asked if having the binoculars would have made a difference or not Read Article