Epoxy resin separation
Epoxy resin separation
(OP)
Hello to All,
I'm having difficulties with bonding epoxy resin coated polyimide to other polyimide substrate.
The defect is local separations between those two surfaces (after heat press c-staging).
I'd like to mention that those separations appears as small air bubbles (under optical microscope).
Any thoughts/ideas??
Thanks!!
I'm having difficulties with bonding epoxy resin coated polyimide to other polyimide substrate.
The defect is local separations between those two surfaces (after heat press c-staging).
I'd like to mention that those separations appears as small air bubbles (under optical microscope).
Any thoughts/ideas??
Thanks!!





RE: Epoxy resin separation
Regards
Blakmax
RE: Epoxy resin separation
Do you recommend baking the polyimide adherent before bonding?
Isn't it enough to b-stage the epoxy coating before bonding and c-staging? Or should I perform the b-staging in vacuum?
Thanks.