##  [Printed Circuit Board](/printed-circuit-board) 

  ##  [Printed Circuit Board](https://engineering.quantumdictionary.io/printed-circuit-board-0) 

  

 [![Engineering & Applied Technologies Dictionary](/sites/default/files/styles/large/public/2026-01/Engineering%20%26%20Applied%20Technologies.png.webp?itok=_IKO7_-n)](/topic-specific-dictionaries/engineering-applied-technologies)



**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A rigid or flexible engineered substrate composed of one or more dielectric layers with patterned conductive traces, pads and vias that mechanically support and electrically interconnect electronic components, provide power and ground distribution, and supply controlled signal routing and thermal paths according to fabrication and design rules.