Author Archives: Duane

About Duane

Duane is the Web Marketing Manager for Screaming Circuits, an EMS company based in Canby, Oregon. He blogs regularly on matters ranging from circuit board design and assembly to general industry observations.

7 Cost Reduction Design Tips For Makers

As a maker, you really need a decent price, with good quality and good service. Contrary to what many people think, you don’t need to look outside of North America for this. You can keep your gaze west of the … Continue reading

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Fab Drawings or Assembly Drawing Standards?

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

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Accursed Diode Marking

Am I a broken record? Pretty much — especially when it comes to confusing diode marking. For example, everyone knows what the diode symbol looks like, and pretty much everyone knows which side is the anode and which is the … Continue reading

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What Do You Do If You Can’t Have Reference Designators?

The first answer to that question is probably going to be along the lines of, “Put them on the board.” But, sometimes you can’t have reference designators on your board. Maybe it’s too densely populated and there isn’t room. Maybe, … Continue reading

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What Route Do You Take?

There are a lot of polar opposites in the “what is my philosophy” world: Mac vs. PC, on shore vs. off shore manufacturing, Ford vs. Chevy, Atmel vs. Microchip (well, maybe not that one so much any more), auto router … Continue reading

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Building Boards for the Intel Edison

I’ve recently spent some time getting familiar with the Intel Edison. The Edison has a dual-core 500MHZ Intel Atom processor, with built-in Wi-Fi and Bluetooth. It comes with 1GB of RAM, 4GB of eMMC internal storage, and a USB 2.0 … Continue reading

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Where to Put Panel Tabs

Many small quantity PCBs are ordered individually cut. They come to us as a set of unconnected boards. For small quantities of reasonable size boards, it makes the most sense to order them this way. However, for really small boards, … Continue reading

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Top 5 Things to Know When Moving from Hand Assembly to Robotic Assembly

A lot of factors go into the decision to hand build or outsource circuit boards. I hand build my own sometimes, simply because I enjoy the challenge. Of course most of the projects I design are for my own use, … Continue reading

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USB Type-C Connectors

It wasn’t terribly long ago that pretty much every cellphone came with its own custom charging cable. It was a major step forward when they all (except Apple) standardized on the USB micro-B connector. However, there areĀ a number of limitations … Continue reading

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Fiducials and Odd Boards

One of the handy aspects of getting boards assembled at Screaming Circuits is that we don’t require fiducial marks for standard process boards. I would say that we build far more boards without fiducials than with. That’s cool, but there … Continue reading

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