Advantages and disadvantages of SMT chip processing

1. Advantages of SMT SMT processing process:

1) The processing density of the chip processing is high, the size of the electronic product is small, and the weight is light.

 The volume and weight of the chip component are only about 1/10 of that of the conventional plug-in component.

 After the SMT is generally used, the volume of the electronic product is reduced by 40% to 60%. Weight loss 60%~80%.

2) High reliability, strong anti-vibration ability. Low solder joint defect rate. Good high-frequency characteristics. 

Reduced electromagnetic and radio frequency interference.

3) It is easy to automate, improve production efficiency and reduce costs by 30%~50%.
4) Saving materials, energy, equipment, manpower, time, etc.

2. Disadvantages of SMT chip processing process:

1) Connection technology problem. (thermal stress during brazing) 

The body of the part during soldering is directly subjected to thermal stress during soldering 

and there is a risk of heating several times.

2) Reliability problem. When assembled to the PCB, the electrode material is fixed with the solder.

 The deflection of the buffer PCB without the lead is directly applied to the part body or the solder joint,

 so the pressure caused by the difference in solder amount may cause Part body to break.

       3) PCB testing and rework problems. As SMT integration becomes higher and higher, 

PCB testing becomes more and more difficult, the position of needles is getting less and less, 

and testing equipment and rework equipment require some expenses.