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Is vacuum storage of humidity sensitive components sufficient?

2019-10-07   

Due to material problems of some electronic parts, atmospheric moisture will penetrate into the body during packaging, storage, and use. When going through the REFLOW process, due to the rapid rise in temperature, the moisture in the part body will expand into vapor, causing material damage or internal structure/specification changes. In order to solve this problem, it is required that measures should be taken to prevent the penetration of moisture in the packaging, storage, and use of such materials. Such materials are called humidity sensitive elements. Humidity-sensitive components can be divided into 6 grades. The higher the grade, the more severe the humidity sensitivity and the stricter the humidity-sensitive conditions required. For components with humidity sensitivity levels of 2a-5a, if you need to open the original package to take some components, the remaining components must be stored in a dry storage method immediately, and a moisture-proof component unpacking time tracking card should be attached.

When used on the production line before, humidity-sensitive components were stored in vacuum packaging bags with desiccant. Although vacuumed storage can prevent air from entering the interior, it has a certain moisture-proof effect, but the vacuum packaging must be repackaged every time the material is taken, and the labor and packaging materials cost are high. If the vacuum packaging is damaged, it is not easy to find, which will affect the humidity sensor. Service life. With the development of the industry, general vacuum packaging storage can no longer meet the storage requirements of moisture-sensitive components. Therefore, most electronic manufacturers have begun to use industrial electronic moisture-proof cabinets.

Moisture-proof cabinetIt can meet the different humidity storage needs of many industrial products, such as: MSD components, LED chips, brackets, semiconductor wafers, solar cells, etc. Designed according to the J-STD-033 humidity sensor specification application standard, different storage humidity can be set to achieve rapid dehumidification, which can meet the requirements of long-term storage of components. At present, the upgraded moisture-proof cabinet has the functions of temperature and humidity controllable, intelligent nitrogen filling and IoT data collection, low cost of use and simple operation. This is the ideal industrial moisture-proof cabinet that truly guarantees the safety of the stored humidity-sensitive components!