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Polyimides and PBO's

Materials for stress relief buffer coat or redistribution layer

Polyimide and Polybenzoxazole (PBO) products are specialty stress relief coatings used as a protective layer or "buffer coat" before packaging or redistribution layer (RDL).

Buffer coat layers provide protection to finished die during back grind, singulation and assembly processing resulting in improved packaged yields and increased reliability lifetime performance. Redistribution layer applications enable the most advanced packaging designs.