Abstract: The development of printed circuit boards has a history of more than 100 years, but many people still do not know its details. As a major supplier of electrical connections for electronic components, PCBs are widely used by electronics manufacturers because they reduce wiring and assembly errors, improve automation levels and production labor productivity

What are the main components of PCB

Printed circuit board, also known as printed circuit board, PCB, PWB. FS technology considers PWB to be a more specialized term, but in our sales process, we found that this term is rarely used.

An insulating FS Technology PCB board is used as a base material, cut to size, with at least one conductive pattern attached to it, and holes (such as component holes, fastening holes, metallized holes, etc.) are used to replace the chassis of the electronic components in the previous equipment, and realize Interconnections between electronic components. Because this type of PCB board is made of electronic printing, it is called a "printed" circuit board. Calling a "printed circuit board" a "printed circuit board" is inaccurate because there are no "printed components" on a printed circuit board, only wiring.

Because the printed circuit board is not a general end product, the definition of its name is a bit confusing. For example, the motherboard of a personal computer is called a motherboard, but not a PCB Assembly directly. While there are boards in a motherboard, they are not the same. Therefore, when evaluating the industry, the two are related, but cannot be said to be the same. Another example: because there are integrated circuit components on a circuit board, the news media call it an IC board Assembly , but it's fundamentally different from a PCB Assembly. When we usually speak of a printed circuit board, we mean a bare board, that is, a circuit board without upper components.

Pattern: Circuits are used as a means of conducting electricity between components. In the design, a large copper surface will be designed for the ground and power planes. Lines and drawings are produced at the same time.

Dielectric: used to maintain insulation between lines and layers, commonly referred to as a substrate, for more detailed dielectric knowledge, you can go to the FS Technology PCBA Blog.

Via Via: Vias allow more than two layers of wiring to be connected to each other. The larger through-holes are used as part inserts, and the non-through-holes (npth) are often used for surface mounting and positioning, as well as for securing screws during assembly.

Soldermask Soldermask: Not all copper surfaces require tin-eating parts, so areas that don't eat tin will have a layer of a substance (usually epoxy) printed to isolate the copper surface from the tin-eating parts to avoid tin-eating lines short circuit between. According to different processes, it is divided into green oil, red oil and blue oil.