Archive for Basics/Tutorials

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Basics - Where Do I Start?

I know you have many choices for DFT blogs, and I’d like to thank you for choosing DFT Digest. Welcome back!
Anyway, we have a cursory “why” discussion behind us for now. But where do we start? Do we make a plan? Have you ever heard of a DFT plan? Google [...]

Basics - Test Economics and Yield

I’m just going to have to accept the fact that when I go back and read some of my posts, in retrospect they will seem like pointless rambling - and that I’ll try to go back and bandaid them only to make them worse. It seems that could happen more often in this type [...]

Basics - Why do this ‘Design-for-Test’, anyway?

Any good introduction to a topic starts with some discussion of motivation. DFT is no exception. In fact, over the years, most DFT and test engineers have spent more time than they would have liked justifying to designers and design managers the inclusion of test hardware in electronics products.
It’s seemed to me through the [...]

Back to Basics…

The mission of this website is to educate and discuss electronics design for test. At the end of the day, I want to help anyone trying to tackle the DFT problem, including myself, get through their day. What are we trying to solve? What tools are available to help us solve those [...]

Test Compression Series - Installment #4

Design-for-test methodology and the job of the DFT engineer have grown tremendously in the last few years. The massive amounts of internal circuitry and shear speed at which it operates have outpaced classic ATE’s ability to test it. Therefore, the tester changes residence to within the confines of the device, where it can [...]