Single-sided, double-sided, multi-layer printed circuit board PCB

Printed Circuit Board, PCB abbreviated as printed circuit board, is an important basic component in electronic products. It is widely used in consumer electronics, automotive electronics, industrial automation control, communication equipment, military electronic equipment and aviation, and aerospace electronic systems. Etc., Pingping can use printed boards in all electronic products. The design and manufacturing quality of PCB directly affects the quality and cost of electronic assembly process and electronic whole machine products, and sometimes becomes the key to affect the quality of electronic product systems. Therefore, it has received extensive attention from the electronics industry at home and abroad.

         With the development of electronic components and their electronic assembly technology, the requirements for PCBs are also getting higher and higher. The development trend of the world's green and environmentally-friendly electronic products is a serious challenge to the PCB industry. In order to meet the needs of these developments, new materials, new technologies and new equipment of PCBs are constantly appearing. PCB manufacturing technology is constantly being updated and developed.

According to the definitions of the International Electrotechnical Commission standard IEC 60326 and the national standard GB2036, the meanings of the printed circuits are as follows:

         On an insulating substrate, a printed component or printed wiring formed in a predetermined design and a conductive pattern combined therebetween are referred to as a printed circuit.

         A conductive pattern formed on an insulating substrate and used as an electrical connection between components (including shielding elements) is called a printed circuit and does not include printed components.

         Finished boards for printed circuit or printed circuit processing, commonly known as printed boards. Depending on the number of layers of conductive patterns on the printed board, they are also referred to as single-sided printed boards, double-sided printed boards, and multi-layer printed boards.

Single-sided printed board: A printed board with conductive patterns on only one side of the insulating substrate.

Double-sided printed board: A printed board with conductive patterns on both sides of an insulating substrate.

Multilayer printed board: A printed board that is alternately bonded by more than two layers of conductive patterns and insulating materials, and interconnected between the conductive pattern layers as specified.

    In order to describe the characteristics of printed circuits and to carry out related technical exchanges, there are common terms and definitions for the design, manufacture, materials, and inspection of printed circuits in foreign countries and in China. The most commonly used terms and definitions in China, the county and the International Electrotechnical Commission standard IEC 60196 bulletin, the US IPC-TM-50 and the national standard GB 2036 specified in a drug, here will not be introduced one by one, the book in the description as far as possible Use these specific terms. In these domestic and foreign standards, the definition of the same term is consistent, but Tian's progress and rapid development of science and technology, some new materials and technology of the University of Technology continue to emerge, terminology is also incisive To make up for the terminology that has not been defined in the relevant standards, we should keep track of the new developments in the development of printed circuit board technology in order to understand the meaning of these new terms more correctly.