MSD is the abbreviation of moisture-sensitive device . It is s non-hermetic packaging element and made of a moisture-permeable material such as a dense spacing element and a ball grid arry.
When these moisture -sensitive elements are exposed to elevated high temperatures during reflow soldering,
moisture inside the suface of the plastic suface mount device(SMD) can lead to large vapor pressure damage or cracks. What worse , these crack will extend to surface of the component, causing bulging or burst. So it is very important and neccessary to moisture proof packaging.
Besides , it is also important to take precausions to absorb moisture in the package. That is why you often see the desiccant bags inside these element packaging . Montmoirllonite clay desiccant is very suitable for electronic products . It made of natural montmoirllonite clay , with environmentally, non-toxic, and reactively featurers. The packing paper takes strong tvyek paper , it is tough, and anti-static. Montmorillonite clay desiccant has strong moisture adsorption capacity .can effectively and welly play the role of moisture proof , the guard of products safe and quality .
