Category: Insights

Copper weight looks like a checkbox on the fab drawing, but it is decided before almost anything else on a current-carrying board — and it quietly sets your trace width, your spacing, your etch tolerance and your price. A practical decision guide to 1 oz, 2 oz and heavy copper, and what to put on the RFQ so the quote matches the design.

Wide-bandgap semiconductors switch fast enough that the PCB stops being a passive interconnect and becomes part of the circuit. A few nanohenries of stray inductance in the wrong loop turn into ringing, EMI or a failed prototype. This article covers what GaN and SiC actually demand of the board – heavy copper, insulated metal substrates, rigid-flex integration, disciplined loop layout – and the fabrication tolerances that determine whether the physical board behaves the way the simulation promised.

A practical primer on choosing between rigid, flexible, and rigid-flex PCB construction — driven by the mechanical envelope and reliability target.