Web Analytics
KFPCBA focuses on the demand for high-quality PCBA orders of "multi-variety, large, medium and small batches, and short delivery time".

Looking to build a project?
We make all your dreams come true in a successful project!Upload your Gerber file or Bom now for an online quote >>>

Upload PCB design data, Gerber file or Bom (please pack and compress multiple files before uploading): zip.rar.xls.doc.jpg.png...

Contact us


  • Tel: +86-18825224069
  • E-mail:
  • Company address: 201, Factory 6, Longhui Industrial Park, Fuqiao 3rd District, Xinhe Community, Fuhai Street, Baoan District, Shenzhen

In Terms Of The Glossiness Of Solder Joints Processed By Lingzhuo SMT, Processing

Release date:2022-11-23 16:12:41 Number of views:117

In terms of the glossiness of solder joints processed by Lingzhuo SMT , processing

In SMT patch proofing, many customers have certain requirements for the glossiness of solder joints. If the glossiness of solder joints is found to be insufficient during the inspection process, the product can be defined as unqualified. However, welding is definitely an essential process in SMT patch processing , so the glossiness of solder joints for SMT patch proofing is insufficient.


1. The solder paste for smt chip processing itself contains additives that can form a matting effect.

2. There is oxidation of tin powder in smt chip processing, which reduces the glossiness of solder joints of PCBA.

3. The preheating temperature of the reflow soldering in the SMT chip proofing process is insufficient and does not reach the expected standard value. The rapid proofing of the smt chip will cause some difficult-to-evaporate to remain on the surface of the solder joints, resulting in solder joints in SMT chip processing. Not enough gloss.

4. There are rosin or resin residues on the solder joints after the welding process of SMT patch proofing processing, and electronic processing factories generally use rosin-type fluxes and no-clean fluxes when selecting rosin solder pastes, although these fluxes will make solder joints Brighter, but in actual operation, their residues often affect the glossiness of solder joints in SMT patch proofing.

5. There is no clear standard for the glossiness of solder joints in SMT chip processing. For example, there must be a certain gap between silver-free solder paste welding products and silver-containing solder paste welding products, and this requires customers to choose solder in SMT patch proofing When applying paste, it is necessary to clearly express their own requirements for the glossiness of solder joints.

Lingzhuo SMT proofing, Shenzhen PCBA, PCB proofing, SMT patch proofing, PCBA processing, smt patch, pcba OEM material, SMT&DIP proofing processing Friendly reminder: the data and information of each information are for reference only smt patch quick proofing , Welcome to contact us for the most accurate information, thank you!

Comment on this article here
  • Names
    Company name
  • Last name
    No comment
    No comment
​Hi everyone, I'm Ripple, Sales Director of KFPCBA Tech Ltd. If you are looking for a one-stop PCB and PCB assembly manufacturer in China, KFPCBA is your best choice! Please feel free to contact our team! Thanks!
Contact me now

connect us

Contact the KEPCBA team
  • Name
  • Telephone
  • E-mail
  • Information

File upload (Dom needs to be compressed into a ZIP file)

Upload file Allowed file types : zip.rar.xls.doc.jpg.png...