SMTThe essence of surface mount technology (SMT) is to attach components toPCBAOn the board. SoSMTWhat are the reasons for not applying tin during the surface mount technology (SMT) processing? Now, JJY solder Paste Manufacturer will give you a brief analysis:1,PCBASolder pad orSMDThere is a serious oxidation phenomenon at the welding position.2The activity of the flux in the solder paste is insufficient and has not been completely removedPCBASolder pad orSMDOxidizing substances at the welding position3,SMTThe temperature in the reflow soldering area during processing is too low4Wetting of flux in solder paste......
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Solder paste printing isSMTThe first step of surface mount technology (SMT) processing, its quality will directly affect all subsequent processing links. So how should we do it well? The following is the answer from Shenzhen JJY Solder Paste ManufacturerSMTA brief introduction to the precautions for printing solder paste in surface mount technology (SMT) processing1The quality of solder paste: Solder paste is a slurry made by mixing alloy powder with flux and other materials. Whether components can be well soldered onto the solder pad depends crucially on the quality of the solder paste. The main factors influencing it are as followsS......
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inSMTIn surface mount technology (SMT) processing, the quality requirements for solder joints are extremely strict. inSMTDuring processing, we need to make judgments from three aspects:Good electrical contact, sufficient mechanical strength and neat appearance. Similarly, we can also analyze the causes of adverse phenomena from five aspects: operators, equipment, materials, processes and the environment. Reflow soldering isSMTThe step close to the end in the production process of surface mount technology (SMT) processing and responsible for the soldering of components. The poor reflow soldering combined with the printing......
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The metal components of lead-free solder paste include metals such as tin, silver, copper, and bismuth. So, what are the similarities and differences between lead-free solder paste containing silver and that containing copper? The common points of silver-containing solder paste and copper-containing solder paste: Both are lead-free solder paste series products and have passed the European UnionROHSCertified, it has the inherent characteristics of lead-free solder paste. Now, the solder paste manufacturer will specifically explain and analyze for everyone: The main differences between silver-containing lead-free solder paste and copper-containing lead-free solder paste are as follows: First, gold......
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inSMTIn surface mount technology (SMT) processing, the solder bead phenomenon is one of the main defects. There are many reasons for the occurrence of solder beads, and it is not easy to control. Now, JJY solder Paste Manufacturer will introduce it to youmtWhy are there tin beads during the process?1The thickness and quantity of solder paste printing areSMTIn surface mount technology (SMT) processing, the printing thickness of solder paste is a key parameter. If the solder paste is too thick or too much, it will collapse, leading to the formation of solder beads. When making templates, the size of the openings on the template is generally determined by the solder pads......
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