This is Screaming Circuits's Typepad Profile.
Join Typepad and start following Screaming Circuits's activity
Join Now!
Already a member? Sign In
Screaming Circuits
Screaming Circuits company blog
Interests: Assembly, RoHS, smt, BGA, QFN, pcb, chocolate, prototype, quick-turn
Recent Activity
Image
It seems like not but just a year ago, I was already forgetting to write a new year's prediction blog post. If that didn't make much sense, then likely neither did my predictions post from a year ago. I started... Continue reading
Posted Dec 31, 2017 at Screaming Circuits
Image
According to Webster’s Dictionary, a brand is: “a category of products that are all made by a particular company and all have a particular name.” That’s true, but that definition’s simplicity harkens back to the days of identifying cattle on... Continue reading
Posted Dec 27, 2017 at Screaming Circuits
Image
What is Mosfet day and why should you care? Mosfet day is a holiday, on December 23rd of each year, all about celebrating what we are collectively capable of doing, if we set our differences aside, if we look at... Continue reading
Posted Dec 18, 2017 at Screaming Circuits
Image
In the past, it was usually pretty easy to find chips in both surface mount and thru-hole packages. Somewhere in the last decade or so, component manufacturers stopped introducing thru-hole versions of their newest chips as standard practice. In many... Continue reading
Posted Dec 13, 2017 at Screaming Circuits
Image
A good leader should communicate in the language of his or her subordinates. A good leader should be the one to adjust dialect and language. This is well accepted wisdom. The problem is that “should” is a rather meaningless word.... Continue reading
Posted Dec 11, 2017 at Screaming Circuits
Image
Manufacturing is all about taking data from you and delivering some good working circuit boards. Well, it can be just data - as in full turn-key, or data plus some parts and or PC boards, as in a partial turn-key... Continue reading
Posted Dec 6, 2017 at Screaming Circuits
Image
We've been asked that question: "Do I Really Need Soldermask and Silkscreen?" many times. And, we've been asked with good reasons. To us, soldermask protects exposed metal, reduce the chance of shorts, and keeps solder where solder needs to be.... Continue reading
Posted Dec 4, 2017 at Screaming Circuits
Image
Design rules are rules (imagine that) set in your PCB CAD software that will do one or more of two things. A) They set the limits of the capabilities of the PCB fabrication company you'll use to make your blank... Continue reading
Posted Nov 29, 2017 at Screaming Circuits
Image
As an engineer entering the land of entrepreneurship, you know (over simplification warning) design can be split into two philosophies: hack & patch, or engineer it. I suspect that all but lazy people would prefer the “engineer it” method over... Continue reading
Posted Nov 27, 2017 at Screaming Circuits
Image
Power distribution, on a PC board, can come in a number of forms. The three most common methods are You can route power and ground. You can use surface layer floods. You can use internal planes. After component positioning, you’ll... Continue reading
Posted Nov 22, 2017 at Screaming Circuits
Image
As an engineer entrepreneur, you’ve probably heard the phrase “market segmentation.” If you haven’t, you really should have, and, well... now you have. It is one of the more important components of marketing. Like many others, it can seem intentionally... Continue reading
Posted Nov 20, 2017 at Screaming Circuits
Image
Not long ago, I designed an Arduino compatible clock board. The board has twelve NeoPixel (digital addressed RGB LEDs) arranged around the board to act as hour hands. The minutes and seconds are represented by an external ring of 60... Continue reading
Posted Nov 18, 2017 at Screaming Circuits
Image
A good portion of a quality build is simply the result of clear information. One of the more important pieces of information we deal with is the Bill of materials, called “the BOM.” The BOM is a list of all... Continue reading
Posted Oct 17, 2017 at Screaming Circuits
Image
Learn about last minute DFM, and enter to win... In a prototype world, with competition breathing down your neck, you need everything to work, work fast, and work the first time. Sit in on my "Last Minute DFM" class to... Continue reading
Posted Sep 20, 2017 at Screaming Circuits
Image
I recently ran a batch of my Neo Pixel clock boards through the factory here. It's an Arduino UNO-based design that I made for myself not long ago. It sports an Atmega328P, with bootloader, an FT231X USB chip, and a... Continue reading
Posted Sep 15, 2017 at Screaming Circuits
Image
The QFN (quad flat pack, no leads) package can no longer be considered exotic. It was when I first wrote about it a decade ago, but not any more. In fact, with the wafer scale BGA, it's one of the... Continue reading
Posted Aug 1, 2017 at Screaming Circuits
Image
Every now and then, most of us seem to run out of ideas. Then, like the proverbial high school term paper, with a subject requirement of: “Pick a subject you’re interested in”, we struggle to come up with what to... Continue reading
Posted Jul 31, 2017 at Screaming Circuits
Image
Save the date: August 21, 2017. I don't need to tell you what's happening that day, but I will anyway. It's total eclipse day here in the USA. I wouldn't care too much, except; a) I think total eclipses are... Continue reading
Posted Jul 26, 2017 at Screaming Circuits
Image
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
Image
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
Image
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
Image
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
Image
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
Image
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
Image
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