The PCB printed circuit board is made of copper by copper-coated gravure. It is also called a printed circuit board (PWB). The printed circuit board is a printed circuit board without components and components called PCB assembly, ie printed circuit board with electronic components.
There are in the main two kind of printed circuit board:
- Single board with a single strip of copper layer.
- Double board with two bands of copper layer.
There are also multilayer printed circuit boards with more than two layers of copper. The material used is a thin sheet of copper for conductive layer and insulating material for the base.
There are several way to produce a printed circuit board, such as:
- Copper etching
- Milling of PCBs.
- Screen printing.
PCB milling is used less frequently nowadays, as it is not as operative for the mass production of printed circuit boards and, hence, it is used for the production of prototypes, that is, the production in quantities limited. The method of engraving with copper is the most widely used throughout the world, but the screen printing method is very economical compared to others, although it provides lower quality products.
The entire manufacturing process of the printed circuit board is:
First, the quote is prepared according to the needs of the printed circuit boards. All requirements must be quoted, such as the number of conductive layer bands, price range, etc. Then this quote is sent to the manufacturer.
Once the manufacturer receives the quote, it passes to the previous engineering of the received data.
Then the CAD / CAM department verifies errors.
If an error is found, the client is informed immediately. Once the errors are resolved and everything is correct, the engineers will start working on it.
The flow of the PCB manufacturing process is: