Rigid PCB assembly
PCB assembly, also known as PCBA, is a process of mounting various electronic components to a PCB. The board is called a PCB before assembling the electronic components on it. After the electronic components have been welded together, the board is called a PCBA. There are several assembly ways for rigid PCB, through-hole technology(THT) and surface mounting technology(SMT) are the main methods of PCB assembly.
Although SMT is the mainstream technology of electronic assembly, THT still plays a vital role in the assembly process due to the large size of some components in PCBA processing. So, there are a certain number of THT components in the PCB. The assembly of both THT and SMT is called a hybrid assembly, and the assembly using all SMT is called full-surface mounting. The PCB assembly method and its process flow mainly depend on the type of assembly components and the equipment conditions of the assembly.

Rigid PCB Assembly process steps

What we usually call PCB assembly generally refers to the rigid PCB assembly, and the main steps are listed as below: