What are the requirements for halogen-free and lead-free high-temperature solder paste?

As is known to all,Halogen-free solder pasteIt is specifically forSMTHalogen-free, lead-free and no-cleaning solder paste designed. The product must pass.SGSOnly after obtaining international standard certification can the production workshop be put into use. At present, the European Union has relevant regulations that most electronic products must be halogen-free. Many companies choose lead-free and environmentally friendly products when selecting products. There are also some companies with strict requirements for halogens. Now, JJY solder Paste Manufacturer will explain it to everyone:

Halogen-freeHalogenFree(HFIn fact, it is a requirement of countries with strict environmental awareness to ban related halides, which requires halogensF,Cl,Br,ⅠThe contents are respectively less than900ppmThe sum is less than1500ppmExceeding this value is regarded as non-compliant. In fact, if halogens (fluorine, chlorine, bromine, iodine) are added to polymer products such as plastics, they can be used to increase the ignition point. The advantage is that the ignition point is higher than that of ordinary polymer materials, and the ignition point is approximately300℃. When burning, it will release halogenated gases (such as fluorine, chlorine, bromine, iodine, etc.))Absorb oxygen rapidly, thereby extinguishing the fire. However, its drawback is that when the concentration of the released chlorine gas is high, the resulting reduced visibility can make it impossible to identify the escape route. At the same time, chlorine gas is highly toxic and can affect the human respiratory system. In addition, the halogen gases released by the combustion of halogen-containing polymers, when combined with water vapor, will generate corrosive and harmful gases (hydrogen halides), which can cause corrosion to some equipment and buildings. In fact, excessive halogen is harmful to some products and even to the human body.

The halogen-free and lead-free high-temperature solder pastes produced by JJY Solder Paste Factory all meet the halogen-free standard, and some models even do0Halogen, and it is also environmentally friendlyRoHS2.0Instruction requirements. Produced by our companyLFP-JJY1KR-0307T4The advantages of halogen-free and lead-free high-temperature solder paste are mainly reflected in the following aspects:

1,LFP-JJY5RR-0307T4(Pb<100ppmHalogen-free and lead-free high-temperature solder paste is adoptedSn99Ag0.3Cu0.7It is made of spherical solder powder of lead-free tin alloy with low oxidation degree, featuring superior environmental protection characteristics. Meanwhile, the paste refined from imported chemical materials can achieve high stability and effect.

2It has good demolding performance during printing, excellent dry resistance and good thixotropic performance, and can be applied to general spacings≧0.3mmPrinting of solder pads and fine spacingQFN,BGAThe mounting of devices.

3High temperature resistance300It does not turn yellow, leaves little and transparent residue after welding, is non-corrosive, and has an extremely high surface insulation resistance value. It can achieve excellent results without cleaningICTTest performance, halogen within the halogen-free limit900ppmWithin.

4When printing continuously, the viscosity change is small, which can ensure the stability of the printing effect during long-term operation.

5This product has excellent thixotropic performance and its form remains intact after printing,It is not easy to collapse and avoids the displacement of surface mount components.

6The weld points are bright after welding, with excellent electrical conductivity and gold-plated plates.QFNThe tin climbing has a high fullness.

7Fewer solder beads are produced during welding, reducing the occurrence of short circuits.

JJY Solder Paste Factory produces a wide range of solder paste products, including lead-free solder paste, halogen-free solder paste, silver-containing lead solder paste, syringe solder paste, nickel-plated environmentally friendly solder wire, solder bar, etc. We can provide technical support. If you have any needs or technical questions regarding soldering, please feel free to leave a message online to interact with us!