The Technical Aspects of In-Circuit Test Fixtures

Critical in-circuit test fixtures, or ICT fixtures, are no strangers to On Deck with Circuit Check. This show isn’t their first mention, but, for this episode, ICT fixtures got a more in-depth look for a better understanding of the technical considerations that shape an ICT fixture.

What are the technical specifics required for ICT? How do end-users define those specifics for their industry needs? And how does that impact the quality of scope of an ICT project?

All these questions, and more, were posed to three industry thought leaders who helped Daniel Litwin take a deep look under the hood of ICT.

Neil Adams, Senior Manager of ICT and Account Management for Circuit Check, and Hoe Prihoda, Account Manager for Circuit Check, joined a first-timer in Dave Tucker, President of Test Technology Associates, a company with a nearly 40-year record of best-in-class engineering services. Tucker lent his expertise and insights to the conversation too.

A rule of thumb in the manufacturing of printed circuit boards is work does not continue if the boards are not testable. So, as Adams pointed out, it is vitally important that the test fixture and program are in place as manufacturing begins.

When manufacturers are planning a product requiring circuit boards, there are several standard specifications Circuit Check requires to build an ICT, but that is just a starting point, according to Prihoda.

“We like to ask our customers to make sure they provide us a statement of work if there are requirements regarding connector access, specific LED-testing requirements, device programming, or if they have concerns regarding vector-less tests,” Prihoda said.

These considerations help develop a more accurate quote for the project and ensure the most efficient and cost-effective method is used to carry out those requirements.

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