How does an SMT assembly factory choose solder paste?

SMTSurface mount technology (SMT) factories select the appropriate ones based on different products and processesSolder pasteIt can effectively improve the production quality. Below, Shenzhen JJY Solder Paste Manufacturer will briefly introduce to you the common methods for choosing solder paste:

1Solder paste is generally classified into high, medium and low temperature solder paste based on temperature, and these need to be combinedPBCThe actual reflow soldering times of the board andPCBTake into account the temperature requirements of the components comprehensively.

2The cleaning degree of the plates and the cleaning process after welding are the sameSMTCommon reference factors for surface mount technology (SMT) factories when choosing solder paste types. For instance, the no-cleaning process requires the use of halogen-free and non-strongly corrosive compound no-cleaning solder paste, the solvent-cleaning process needs to use solvent-cleaning solder paste, and water-soluble solder paste should be used in the water-cleaning process.

3,PCBThe storage time of the components and the degree of surface oxidation are also thereSMTWithin the consideration of the surface mount technology (SMT) factory, it is generally adoptedKJRMAProducts with higher reliability requirements can be selected for this gradeRGrade, it is required for use if it has been stored for a long time or has severe surface oxidationraGrade.

4The particle size of the alloy powder in the solder paste is also a parameter that needs to be selected, and this should be based on the actual situationSMTThe selection is based on the assembly precision of surface mount technology (SMT) processing.

5Select the viscosity of the solder paste based on the process of drop coating or printing and the assembly precision. High-precision printing requires high viscosity, while drop coating requires low viscosity.

JJY Solder Paste Manufacturer mainly engages in lead-free solder paste.SMTSurface mount solder pasteLEDWe are engaged in the research and development, production and supply of solder paste, lead-free solder wire, wave soldering rods, red glue and other solder solders. For more knowledge about electronic soldering, you can follow and contact us. Welcome to interact with us.