After the three passive components (resistance, inductance and capacitance) changed from long pin to SMD, the volume has been shrinking.
Now 0402 package has appeared, and 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 has driven the change of belt carrying system
。
Firstly, high precision is required for the carrier belt;
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 carrier material;
Third, the cost is reduced, and high-density packaging is required (packaging spacing is 2mm, usually 4mm);
Finally, anti-static protection. Because the components are very small and easy to be adsorbed by static electricity, the SMT machine cannot get the components or the components turn sideways