Standard printed circuit board

　　Standard printed circuit board refers to a circuit board designed and manufactured according to certain specifications and standards. This type of circuit board usually has the characteristics of strong universality, good compatibility, and stable quality, and is widely used in various electronic devices and systems.

　　When designing standard printed circuit boards, engineers need to follow a series of industry standards and specifications, such as size, thickness, copper foil thickness, pad size, etc. These standards help ensure the interchangeability and compatibility of circuit boards in different devices and systems. In addition, standard circuit boards also need to undergo strict quality control and testing to ensure their performance and reliability.

　　The process of manufacturing standard printed circuit boards is similar to other types of circuit boards, but more standardized and regulated. Firstly, create a design file for the circuit board using CAD software. Then, the circuit pattern is transferred onto the copper-clad laminate using photolithography technology. Next, perform exposure, development, and etching