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Test Pads on High-Speed Nets

Alan Sguigna

July 8, 2010
1:45 pm

Recently I read a posting from a well-known In-circuit Test (ICT) vendor defending the use of test pads on high-speed signals. I found this message to be rather amusing, since the prevailing wisdom is to avoid these to prevent signal integrity issues. The posting went something like this...

Ever heard of PCOLA/SOQ/FAM ?

Alan Sguigna

July 6, 2010
7:18 pm

How do test engineers quantify the amount of test coverage they get on a particular board design? Is this science or black magic? I believe it’s both. One scientific innovation I’ve seen recently is the adoption of PCOLA/SOQ/FAM by iNEMI. Yeah, I know that’s a lot of letters strung together, but here’s what it means...

IEEE 1149.7 & 1687 – dispelling the misconceptions

Larry Osborn

July 6, 2010
12:57 pm

When the subject of new standards comes up, the reaction of some may be a roll of the eyes and the question: Tell me again why we need another new standard? At least with two new IEEE standards, 1149.7 and P1687, it’s clear that there’s tremendous value in the technology they enable. Still, there are some misconceptions afoot that ought to be dispelled...

Test Pads on High-Speed Nets

Ever heard of PCOLA/SOQ/FAM ?

IEEE 1149.7 & 1687 – dispelling the misconceptions

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