SMT (Surface Mount Technology) is a stub will be no pins or surface mount components (referred to SMC / SMD) placed on the surface of printed circuit boards, through methods such as reflow or wave soldering to welding assembly of the electronics assembly technology.
With the miniaturization of electronic products, complex technology, SMT technology has been rapid development of increasingly sophisticated. Circuit design, structural design and technology constitute the three main technical elements of electronic products, including SMT process is an important part of technology. In the SMT process, PCB design rationality is more concerned about all the problems SMT manufacturers, but also a key factor affecting product quality. Some designers do not pay attention to product manufacturability, as long as the circuit aspects of the design is no problem on it, so that in products that not only manufacturing, poor, and the need to keep more restructuring process, resulting in product development becomes longer, the design costs , reducing the competitiveness of products in the market. Therefore, designers must pay attention to PCB design for manufacturability.