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About us
 Shenzhen KingshengPCBA Tech Co.,Ltd (HK C-Alley Co.,Ltd), an professional PCBA manufactuer and electronics manufacturing service (EMS) provider for 12years.SMT factory has ISO9001, ISO14001, TS16949 certification, advanced production equipment and rich experience in the production of PCBA. more

Printed Circuit Board Assembly (PCBA)
Printed Circuit Board Assembly (PCBA)
 
Electronic components
Soldering materials including solder wire, solder paste, solder bar, solder preforms (depending on the type of soldering to be done)
 
Soldering flux
Soldering equipments including soldering station, wave soldering machine, SMT equipment, inspection and testing equipment etc.
 
Once all of the above equipment, electronic parts and all raw materials are arranged, it is time to start the assembly process.
 
Printed Circuit Board Assembly with Thru-Hole Electronic Components
 
Electronic components that have leads coming out and are inserted through tiny holes in the PCB for soldering are called thru-hole electronic components. The assembly or soldering process for these components include wave soldering and hand soldering – Wave Soldering – A PCB assembly process in which solder in the form of solder bar are put in a high-temperature bath. This solder remains in the bath in molten form and forms a wave at very high temperature. The range of temperature depends on the type of solder. Traditional tin / lead (Sn/Pb) solder has lower melting point than lead-free (Pb-Free) solder. The PCB with all the thru-hole electronic components in holes is passed over molted solder with a help of a conveyor belt. The whole wave soldering process includes following steps:
 
Inserting of electronic components
Flux application
 
Preheat
 
Cleaning
 
Testing
 
Once the wave soldering is done, the PCBA is cleaned and tested. If any fault or solder joint is found, it is sent for rework, which is generally done by hand. Hand Soldering – Hand soldering is done in manufacturing units with less work load or in rework / repair jobs. A good quality soldering station or soldering iron and solder wire and flux are used in the process.