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Screaming Circuits
Screaming Circuits company blog
Interests: Assembly, RoHS, smt, BGA, QFN, pcb, chocolate, prototype, quick-turn
Recent Activity
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Our all-things-about-electronics manufacturing standards body, the IPC, specifies the proper numbering order for most components. That's a pretty nice thing that they do there, but it's not always enough to prevent layout mishaps. Case in point a line of small... Continue reading
Posted Jun 12, 2017 at Screaming Circuits
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There are a lot of components that require special handling. Some days, "special" requirements seem more the norm than the exception. But, every now and then, we see something that puts even those special components to shame. Not long ago,... Continue reading
Posted Jun 8, 2017 at Screaming Circuits
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A diode can be put on a a PC board in one of two ways. It's only got two pins (usually - see, already, Iv'e got a caveat.) I've written about them a few times before. I've got a sampling... Continue reading
Posted Apr 10, 2017 at Screaming Circuits
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Accountants may have a fiduciary responsibility, but that really has nothing to do with PC board assembly. Change the "ry" to a "ls", however, and you get fiducials, which does have something to do with PCB assembly. A fiducial is... Continue reading
Posted Apr 4, 2017 at Screaming Circuits
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Screaming Circuits is proud to announce its newest prototype and low-volume manufacturing related service offering: NAND-compression BOM (bill of materials) consolidation. One of the ongoing frustrations in the electronics design design world relates to the explosive rate of introduction of... Continue reading
Posted Apr 1, 2017 at Screaming Circuits
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A few days ago, I wrote about HASL PC board surfaces, explaining that it's not an appropriate choice for small parts. Look at the same PCB image as I used yesterday. You might not recognize it because yesterday, it was... Continue reading
Posted Mar 1, 2017 at Screaming Circuits
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The board surface names: HAL and HASL (hot air leveling and hot air surface leveling) refer to the same thing. They are interchangeable terms. With that out of the way, I'll get to my point, which is that HASL is... Continue reading
Posted Feb 23, 2017 at Screaming Circuits
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Sometimes, we find things that kind of defy explanation. Fortunately, this didn't come from Sunstone, our normal board house. Regardless of who it came from, I'm sure it was a one-off mistake, but, wow. How could anyone miss this? It... Continue reading
Posted Feb 20, 2017 at Screaming Circuits
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Here are the top 10 best Valentine's Day movies for engineers, loaded with actual story, in addition to human (mostly human) emotional interaction: Continue reading
Posted Feb 14, 2017 at Screaming Circuits
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Joining our sister company, San Diego PCB, at DesignCON, in Santa Clara, CA. If you're in the bay area Feb 1st or 2nd, stop by and see us in booth 1155. Show hours are 11:00 to 6:00 on both days,... Continue reading
Posted Feb 1, 2017 at Screaming Circuits
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Here at Screaming Circuits, having three perfect circles are vitally important. The three circles are 1) Quality 2) Speed and 3) Cost. They must each be a perfect circle in order for our company to function in unison. Continue reading
Posted Jan 31, 2017 at Screaming Circuits
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What is the difference between electronics in a robot vs., say, a stationary temperature monitor and control device? For one, if the temperature controller goes haywire, you can pull it off the wall and stomp on it, while you might... Continue reading
Posted Jan 18, 2017 at Screaming Circuits
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There was a time when the Bison ran free on the plains and power components were easy to design with. Everything, with the exception of an exotic few, used either the TO-220 or TO-3 packages. Even when surface mount came... Continue reading
Posted Jan 16, 2017 at Screaming Circuits
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Today's illustration isn't a super-bad problem. You can usually make this work - unless you've got to align up with a hole in case. I'm talking about the venerable 3.5 mm audio jack. They aren't used all that often these... Continue reading
Posted Jan 3, 2017 at Screaming Circuits
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I've already written my top-ten predictions for the coming decade, in this blog post. But, while predictions might be fun to muse upon, they really won't help you get your job done. My top-ten8 pieces of PCB assembly advice for... Continue reading
Posted Dec 27, 2016 at Screaming Circuits
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Surface mount components are carefully packaged up in strips, tubes, or trays, because they're machine assembled. The assembly robots need order and organization to properly do their job. Thu-hole parts, on the other hand, are almost always manually inserted by... Continue reading
Posted Dec 21, 2016 at Screaming Circuits
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In the year 2525... Not long ago, social speculators talked about how the younger generation grew up with computers, the Internet, and cell phones; that they have fully integrated this technology into their lives. I would maintain that today, it's... Continue reading
Posted Dec 15, 2016 at Screaming Circuits
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Part numbers are incredibly important, but can also be incredibly annoying and confusing. Obviously, we all need them, but it would be nice if there were some semblance of a standard. Well, there are some standards, like capacitor grades and... Continue reading
Posted Dec 13, 2016 at Screaming Circuits
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It’s a no-brainer that we would not be as advanced as we are today if it was not for J Presper Eckert and John Mauchly—what? Oh, you know who they are. Continue reading
Posted Dec 8, 2016 at Screaming Circuits
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Do you love your job? We pretty much live the majority of our lives at work, so naturally it would seem important that we chose a career that we love, just like choosing a spouse to commit too, you should... Continue reading
Posted Nov 30, 2016 at Screaming Circuits
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The USB 3.1, type C standard have been around long enough such that the connectors and chips are readily available. But, it's a more complex set up and may have far more capabilities than is needed in your design. As... Continue reading
Posted Nov 29, 2016 at Screaming Circuits
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Sir William Crookes was the inventor of the vacuum tube, discoverer of helium and master experimenter. He was also a very spiritual man and often experimented with the paranormal. Someone as smart of him MUST have been onto something. Nikola... Continue reading
Posted Nov 2, 2016 at Screaming Circuits
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It's not always possible to have all of the information needed for a successful PCB assembly printed on the blank PC board. When this is the case, we ask for an assembly drawing - like I suggest here. But what... Continue reading
Posted Oct 25, 2016 at Screaming Circuits
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I was asked to write a little something about “makers” and how they are relevant to what we do here. A what? The first step was to ask Google “What is a maker” and find out what I had just volunteered for. Continue reading
Posted Oct 19, 2016 at Screaming Circuits
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Today, October 11, is Ada Lovelace day, and the day of the first manned Apollo launch in 1968. What do the two have in common, you might ask? Ada Lovelace is considered to be the first programmer, for her work... Continue reading
Posted Oct 11, 2016 at Screaming Circuits