Polyimide films, electrophoretic

Contamination of the polyimide with metal ions is a serious concern with respect to the thermal and electrical properties of the finished films. Also, the ability to obtain uniform film thicknesses over irregular surfaces is one of the key advantages of electrophoretic deposition. It was these considerations that provided the impetus for the work reported in this paper. 

Novel aqueous-developable photoresists have been formulated to process in dUute acidic media. A dry film based on electrophoretic depositable (ED) materials was shown to have excellent stability in strong alkaline solutions, potentially useful for etching polyimides or for full-build electroless copper plating. ... 

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