PCB Manufacturing

Created: April 2020Last Updated: 06/01/2020


The green mother board inside of every electronics is what’s holding all the electronics and wiring together coherently. This board has multiple layers and intricate materials for different layers to achieve the density we needed for today's miniaturized electronics. In this article, we will cover 3 common types of printed circuit boards, PCB fundamentals, what engineers can do during design and PCB manufacturability basics. 


There are 3 types of PCB as shown below

Printed Circuit Board (PCB)

4 Layered PCB Stackup

Flexible Printed Circuit Board (FPCB)

Application: It is generally used for circuits that do not have heavy or large components such as an Antenna bracket boards where few passive RF matching network are placed.

Example 2 layer stackup 

FPCB Stackup

Rigid PCB

Application: used for modules like display or camera that needs to connect with the main PCB boards within a tight product such as a phone.

Example 2 layer stackup

Rigid Stackup

PCB Fundamentals

Design For Manufacturability (DFM)

A product must select suitable technology and specification based on the product end use, dimension, high speed interface, and component density.

Please see DFM for more details.


To prevent components from falling out and BGA cracking during mechanical stresses, the following techniques should be applied.





PCBA stands for assembled PCB (i.e components are placed and soldered on on the bare PCB boards). In order for proper assembly on components. Design for Assembly must be reviewed with the contract manufacturers before PCB design release.


PCB manufacturing and design are critical parameters for PCB design. As a design engineer, we need to have a good knowledge of limits and tolerance with each PCB technology so that we can have confidence that our design and products are manufacturable.