Number: 204 Title: A Recent Innovation in Corrosion Control for Electronics Authors: Barry L. Rudman, Christophe Chandler and Bill Westerfield Citation: Tri-Service Corrosion Conference, 1997 Keywords: Electrostatic Discharge, Volatile Corrosion Inhibitors Abstract: Packaging materials for the electronics industry have become very specialized. The choice among the materials typically involves balancing several factors, such as the cost of the materials, the cost of the components and the sensitivity of the components to be packaged. Typically corrosion protection is sacrificed in favor of protection from electrostatic discharge (ESD). If corrosion and ESD protection was desired the choice has been to use a metallized static dissipative barrier bag with a desiccant. This option is usually very expensive and had several drawbacks. A main disadvantage was that these types of films are not transparent. It was therefore desired to develop a new packaging material that was transparent and offered both corrosion and ESD protection. This new material was not to be a compromise between the two types of protection, but rather a combination of the best of both materials. Pros/Cons: This paper discusses about the problems associated with the packaging materials and a standard test method was developed to characterize both the dissipative properties and corrosion inhibiting ability of films. Finally from the results it is found that hybrid films seems to provide both static dissipation and corrosion control among the other films employed. Thus VCIs in the hybrid is an ideal choice for protection of electronic components. Further research in this area will lead to the innovation of newer materials, which may have better properties than the present ones.
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