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A New Halogen-free, Ultrathin Parylene Barrier Coating for High Reliability and Corrosion Protection of Next-generation and Flexible Electronics

Windjammer Wednesday, February 26
1:30pm to 1:55pm

A New Halogen-free, Ultrathin Parylene Barrier Coating for High Reliability and Corrosion Protection of Next-generation and Flexible Electronics

The use of flexible and highly-dense electronics is continuously growing with the advancement of interconnect, microvia and microBGA technologies. While these advancements have offered many benefits to high speed and complex electronics applications, they also have some design and reliability challenges. Some challenges include chemical resistance, electromigration, dendritic growth, solder voids, thermal stress in extreme environments, corrosion and the use of appropriate green materials, including organics, for overall reliability in various operating conditions. Many organizations have applied pressure to the electronics industry to eliminate halogens completely (e.g., fluorine, chlorine, and bromine) from their products. Among the various efforts towards environmentally-friendly products, making electronics completely halogen-free has gained significant attention, particularly in Asia and Europe. This initiative even impacts conformal coatings and substrate materials for flexible electronics worldwide, on which most electronics rely on their long-term protection, reliability and high performance against water and other corrosive harsh environments. This new development solves growing issues of reliability and corrosion protection of next-generation, flexible and highly-dense electronics in harsh environments through an ultra-thin, completely halogen free vapor-phase coating, and also as a substrate for flexible electronics. To meet the industry’s current and future requirements worldwide, this presentation introduces a new halogen-free Parylene, ParyFree, to the electronics industry and shares the characterization and qualification results of ParyFree Parylene conformal coating for the protection, reliability and robust performance of all types of electronics. Testing on the new coating includes IPX water resistance, 85/85 exposure, corrosion resistance and qualification per IPC-830CCB.

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