Printing: Its function is to leak solder paste or patch adhesive onto the solder pads of the PCB, preparing for the soldering of components. The equipment used is a printing machine (solder paste printing machine) located at the forefront of the SMT production line.

Glue dispensing: As most of the circuit boards used now are double-sided patches, in order to prevent the components on the input surface from falling off due to the melting of solder paste again during secondary reflow, a glue dispensing machine is installed on the input surface. It drips glue onto the fixed position of the PCB, and its main function is to fix the components to the PCB board. The equipment used is a dispensing machine, located at the forefront of the SMT production line or behind the testing equipment

SMT: Its function is to accurately install surface assembled components onto the fixed position of the PCB. The equipment used is a surface mount machine, located behind the printing machine in the SMT production line.

Curing: Its function is to melt the patch adhesive, thereby firmly bonding the surface assembled components and PCB board together. The equipment used is a curing oven located behind the surface mount machine in the SMT production line.

Reflow soldering: Its function is to melt the solder paste and firmly bond the surface assembled components and PCB board together. The equipment used is a reflow soldering furnace, located behind the surface mount machine in the SMT production line.

Cleaning: Its function is to remove harmful soldering residues such as soldering flux on the assembled PCB board. The equipment used is a cleaning machine, which can be located in a non fixed position and can be online or offline.

Testing: Its function is to inspect the welding and assembly quality of the assembled PCB board. The equipment used includes magnifying glass, microscope, online testing instrument (ICT), flying needle tester, automatic optical inspection (AOI), X-RAY detection system, functional tester, etc. The location can be configured in a suitable place on the production line according to the needs of the detection.

Repair: Its function is to rework PCB boards that have been detected as faulty. The tools used for repairing workstations, multimeters, ferrochrome, etc.