With ultra-high-density interconnect design, small features come with big decisions.

Ultra HDI (UHDI) has become a prominent part of the PCB design conversation, often presented as “the next frontier” in density and miniaturization. But before we move on to advanced routing strategies and design techniques, let’s establish a solid practical foundation. What is the difference between UHDI and the HDI processes, which so many designers have already learned to rely on? Why does the shift in the underlying process matter, and when does it become worth incorporating into mainstream design work? We will address those questions here.

Treating technology as a human replacement strategy is a recipe for failure. Here’s the questions you should be asking.

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