BGADuring the rework process, it is often found that there are incomplete solder joints. Such incomplete solder joints indicate that the volume of the solder joints is insufficientBGAThose that cannot form a reliable connection during weldingBGASolder joint. Its characteristic is that its shape is significantly smaller than that of other solder jointsAXIIt can be easily detected during the inspection. About thisBGAThe fundamental cause of the problem is the insufficiency of solder paste on the solder joints. Now, Shenzhen JJY Solder Paste Manufacturer will explain the reasons and solutions. I. CausesBGAMaintenance process......
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What is halogen-free solder paste? What is halogen-free solder paste? Let's analyze step by step. First of all, we all know what solder paste is, so let's focus on understanding what halogen-free is. As the name suggests, "halogen-free" means it contains no halogen. Halogen elements include fluorine.FChlorineClBromineBrIodineIAnd astatineAtFive kinds. Among them, astatineAtHalogens are radioactive elements that we generally do not come into contact with. Therefore, the halogens we usually refer to are fluorine, chlorine, bromine and iodine......
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With the improvement of high-end materials and processes nowadays, as well asPCBThe design and chip manufacturing capabilities are getting higher and higher, the volume and size of circuit boards are getting smaller and smaller, but their functions are increasing. Then the coreBGA,QFNIt is constantly increasing on the circuit board. Then inmtThere will be a large number of quality issues in the surface mount technology (SMT) stage. Now, Shenzhen JJY Solder Paste Manufacturer will explain them1,PCBThe surface mirror layer.PCBThe influence of the surface layer on the voids is mainly related to wetting......
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In this era of rapid technological advancement,LEDLed beads, with their characteristics of high efficiency, energy conservation and long lifespan, are widely used in various fields such as lighting and display. However, inLEDIn the production process of lamp beads, welding is one of the key links, and the selection of materials directly affects the quality and performance of the product. Today, JJY solder Paste Manufacturer will have an in-depth discussion on solderingLEDWhen it comes to lamp beads, is it more appropriate to choose low-temperature solder paste or medium-temperature solder paste? Low-temperature solder paste: Delicate care, exquisite......
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The phenomenon of solder paste collapse refers to the situation during the printing process where the solder paste fails to maintain a stable shape, its edges collapse and flow to the outside of the pads, while connecting between adjacent pads, resulting in a short circuit in the soldering. There are various reasons for this issue. Let's explore them together with Shenzhen JJY Solder Paste Manufacturer: First of all, excessive pressure from the squeegee is one of the important factors. When the pressure of the squeegee exceeds the tolerance range of the solder paste, the solder paste will be squeezed when passing through the holes of the steel mesh and thus flow into the adjacent pad positions......
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SHENZHEN JIAJINYUAN INDUSTRIAL TECHNOLOGY CO., LTD.
Tel：+86 0755 88366766
Phone：+86 18938660310
Email：sales@jjyhanxi.com
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