Screaming Circuits: Layout

PROTOTYPE AND SMALL VOLUME
PCB ASSEMBLY MADE EASY

Downsizing with SnapEDA

Earlier this year we built the electronic badges for the Open Source Hardware Summit. The badge was very nice as is, but I extended it with a LiPoly battery pack of my own design. The badges were assembled in our... Read more

Ever use a Ti X2SON packaged part?

The name stands for "Extra Small Outline No-lead." It's a newish package from Texas Instruments. In my experience, Ti is one of the better companies where testing and documenting manufactureability is concerned. The datasheet for this device [www.ti.com/lit/an/scea055/scea055.pdf] is no... Read more

Embedded Passives

I recently participated in the Altium pod cast where I discussed the origins of Screaming Circuits, some DFM hints and a few other topics. I was discussing some of the challenges everyone is having these days in procuring components and... Read more

What is your supply chain telling you about packages?

Have you purchased any electronics components lately? Have you tried and failed to do so lately? Allocation is the word of the day and substitutions are your friend. Many, many parts are in short supply, or unavailable with extraordinarily long... Read more

A Question on Schematic Style

Just a quick question here... I'm placing the components for my TinyFPGA based stepper motor controller board (see the prior articles here first, here next, and here last). Specifically, I'm finding places for all of the capacitors. That's where the... Read more

The QFN Rides Again - a Brief Update

If you've been following this series, you've likely come to the determination that I've fallen behind, or forgotten about the project. I haven't forgotten, but I have fallen behind. When I last wrote about the project (here), I had examined... Read more

Make that Three QFNs

It's a new weekend, and I'm back to my obsession with stepper motors. If you haven't read part one of this series yet, go back and read it here. That's not an order; more of a plea. In any case,... Read more

A couple of QFNs and Circuit Maker CAD software

It's about time for another project. I normally design half a dozen or so small boards per year. It's not my profession. It's just something I do. But I haven't designed or built anything since the "incident" with the photo... Read more

Electronics Manufacturing Files - What We Need

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... Read more

Do You Really Need Soldermask and Silkscreen?

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.... Read more