SMD components must also have a transport carrier – SMD tape carrying system, which can be used by high-speed automation on SMT machine. From the protection, economy, capacity and other aspects The tape carrier system also has advantages: This is why most of the carriers of SMD components seen on the SMT production line are paper and plastic substrates of the tape carrier system. The requirements for the tape carrier system: 
1. Firstly, high precision requirements are put forward for the carrier band. After the resistance, capacitance and inductance of the three element source components  change from long pin to SMD  the volume continues to shrink. Now 0402 package has appeared. 0201 package will be widely used in the near future. In terms of SMT equipment, 0201 equipment has also appeared. The miniaturization of these components drives the change of belt carrying system.
2. Secondly, the speed of taking and placing components and discrete components by SMT machine is faster and faster, and one cycle has been less than 0.09 seconds, which puts forward the requirement of high tensile strength for the strength of the carrier
3. Third, it puts forward requirements for reducing cost and improving density packaging. The packaging spacing is 2mm, usually 4mm  G
4. Finally, anti-static protection. Because the components are very small and easy to be adsorbed by static electricity, the SMT machine can’t get the components or the components turn upside down