PCB assembly is a process where you solder electronic components to a PCB. A circuit board that has not yet been assembled with the electronic components is called PCB and once the boards have soldered the components on them, they are technically addressed as PCB assembly.
Remember that circuit board assembly is not necessarily the same as circuit board manufacturing. When you manufacture the printed circuit boards, it involves multiple procedures that include PCB design and actually making the PCB prototype. Before the board can be made ready to utilize in the gadgets or electronic equipments, the appropriate components should be added by soldering them on. The component types and procedures of the assembly depend on the circuit board type it is, type of electronic components that should be connected, and what electronic device the board is going to be added to.
So after the PCB manufacturing is done, it is time for the different electronic components to be attached to it in order to make it completely functional. This is sometimes addressed as PCBA or Printed Circuit Board Assembly. There are two types of construction techniques utilized for the assembly.
- Through-Hole constriction: Component leads are inserted in the holes.
- Surface- mount construction: Components are placed on pads or lands on the outer surfaces of the PCB.
Nonetheless, in both construction types, the component leads are still mechanically and electrically fixed to the PCB with molten metal solder.
According to the volume of the boards that should be assembled, will determine how the components are going to be soldered. It is for a high production value, and then soldering components to the PCB is best done by machine placement. Machine placement is done with bulk wave soldering or reflow ovens. Else, soldering by hand works is just fine in most of the cases. You can easily get PC board online these days.
Frequently, through whole and surface-mount construction to be performed in a single PCB assembly because some required electronic components are only available through whole packages, while others are only available in the surface mount packages. Moreover, it is a good reason to utilize both the techniques during the same assembly as through-hole mounting can actually provide more strength for the electronic components that will possibly go through some physical stress. There are numerous websites available online from where you can order custom circuit board.