When Capacitors "Disappear" from the PCB Surface: The Physics and Manufacturing Limits of Embedded Passives
As electronic devices shrink and chip pin pitches tighten, PCB surface space is completely exhausted. Embedded passive technology—integrating capacitors and resistors directly into the PCB stack-up—offers a revolutionary solution. This article explores the physics behind embedded passives, how they dramatically improve power and signal integrity, and the extreme manufacturing challenges they present.
