Small knowledge of PCB circuit board

      Printed circuit board (PCB), also known as printed circuit board, is a provider of electrical connections for electronic components. Its development has a history of over 100 years; Its design mainly involves layout design; The main advantage of using circuit boards is that they greatly reduce wiring and assembly errors, improve automation levels, and increase production labor rates.

      According to the number of layers on the circuit board, it can be divided into single panel, double-sided board, four layer board, six layer board, and other multi-layer circuit boards.

      Due to the fact that printed circuit boards are not general terminal products, the definition of their names is somewhat confusing. For example, motherboards used in personal computers are called motherboards, but cannot be directly referred to as circuit boards. Although circuit boards exist in motherboards, they are not the same. Therefore, when evaluating industries, the two are related but cannot be said to be the same. For example, because there are integrated circuit components loaded on the circuit board, the news media refers to it as an IC board, but in reality it is not equivalent to a printed circuit board. The printed circuit board we usually refer to is a bare board - that is, a circuit board without upper components.!