One Stop PCB Assembly Service

We provide a one-stop service for PCB fabrication, PCB assembly and component sourcing.

Our CAM engineers have at least 5 years of experience in the PCBA test field. We will thoroughly check the customer’s PCBA design to optimize production. In particular, we need to check the customer’s GERBER data, as some missing, redundant or other non-conforming design defects will negatively  affect subsequent PCB assembling. For example, the spacing design bewtten PAD and PCB component is too narrow, leading to short circuits.

Jinghua will conduct the following strict inspection of PCB, components, wires, and all other production materials before electronic PCB assembly. Based on quality requirements, Our IQC process will check incoming materials, like PCB boards, component shape, component parameters, pin number and spacing.

Based on the parameters of your GERBER file, CAD file, XY coordinate file, and BOM file, our solder paste printing machine, reflow soldering, BGA, X-RAY and other production and testing equipment will be programmed.

Printing is the first step in the SMT process, playing an important role in PCBA quality. We utilize GKG Gse automatic solder paste printing machine to achieve ±0.025mm, which boasts high precision and high stability. These advanced machines provide a strong guarantee for precision PCBA production.

After passing the in-line SPI inspection, the PCB board with solder paste is ready for mounting. Our mounter combination is YAMAHA brand YSM10 + YSM20R wiring combination, YSM20 mounting speed 300,600 dots/h, mounting accuracy: Chip/QFP/BGA ±0.035m, can meet the needs of fast and high precision mounting. The wired YSM10 multifunctional machine. They can mount components from 03015 to 45×45 m m, which can easily cope with devices in different shapes and sizes.

Before entering the reflow oven, the PCB board should pass the first piece tester test, to ensure that all the components are correctly placed, without placement error such as less parts, missing parts, reverse paste, pole reverse, more solder paste, and less solder paste.

JINTO lead-free reflow soldering has ten temperature zones, which can accurately manage the temperature for better soldering quality. After reflow soldering, the components can be firmly mounted on the PCB. To gain stable soldering performance, we will measure the oven temperature twice a day to find the most suitable temperature for the soldered products.

After reflow, PCBs need to be inspected again to ensure accurate and reliable soldering performance. Combined with the first inspection before reflow, the post-reflow inspection provides a double guarantee for quality assurance.

Clean the possible residual oil, fingerprints, solder paste and other dirt, then dry in the oven.

All assembling PCB boards are packed in static bags and shipped to customers. Unused components can be returned according to customer’s request.