What is PCB ?
A printed circuit board, or PCB is a fiberglass plate with copper traces to connect all the components together.
PCB boards are classified into three types.
- single sided,
- double sided and
- multi-layered PCB boards.
Single sided : It contains copper trades on one side of the board. Each component can be inserted from the non-copper side of the board, and each pin can be soldered to the copper track. The operating temperatures may range from 130 to 230 C this type of PCB Board is commonly used in calculators, basic electronic circuits, coffee machines, printers, etc.
Double sided : In this the copper tracks are available on both sides of the board. If there is a requirement to link points from two sides, the electrical connections are made by small interconnecting holes during the manufacturing process and are plated with copper. The most common uses of the double sided PCBs include mobile systems, amplifiers, converters, instrumentation devices etc.
Multi layered : These are assembled together with a mutual connection between them. Multilayered print circuit boards are used mainly in some professional electronic equipments like computers.
PCB VS PCBA
PCB --> Printed Circuit Board
PCBA --> Printed Circuit Board Assembly = PCB plus parts installed.Where we use PCB's :
- In Medical devices
- In Consumer Electronics
- In Industrial applications
- In Automotive applications
- In Aerospace applications etc.