Today, most electronic devices use Printed Circuit Boards Assemblies (PCBA). Typically, a PCBA design has a numbers of components that are placed on a raw board (PCB). Based on the design the components are placed on the board, fixed on it and tested for errors in component placement and functionality .
Taha, Rimal Abu; Cutar, Adriana; and Bhusari, Vijay, "Line Balancing of PCB Assembly in a Surface Mount Technology Manufacturing Process" (2007). Engineering and Technology Management Student Projects. 929.