The essential components of a printed circuit board are the base material and the conductor. Base Material is a thin board of non-conductive, rigid or flexible laminate material that supports all conductors and components. The conductor has high purity of copper in the form of thin strips firmly attached to the base material.
The base material provides mechanical support for the areas of copper and copper-bonded components. The electrical properties of the complete circuit depend on the dielectric properties of the base material and therefore must be selected and controlled. The conductors provide not only the electrical connections between the components, but also the mechanical support for the components, once soldered.
When the entire board provides mechanical support and all the electrical connections required to the components, it is essentially a printed circuit board or a printed circuit board. The term printing becomes popular because the conductive areas are generally generated by means of a printing process such as photogravure, which are commonly used to print designs.
Tin-lead soldering has been the basis for interconnections since the beginning of printed circuit boards, and all associated materials and processes have been developed with the use of this material in mind. But now, a rapid shift to the lead-free technology revolution has received much more attention, there have also been important evolutionary changes in technology as the industry continues to meet the need for increased circuit and component density and faster circuitry.
As a result, the PCB assembly continues to be designed to be smaller and larger to meet specific application requirements, such as server space. The printed circuit board will continue to change the electronic world and the much smaller printed circuit board will be the challenge for most plate manufacturers.