"Habillage" (literally "dressing") in this context relates to packaging of a concept/proposition i.e. the marketing around it (or "spin"). The french word for "packaging" in the physical sense would be "emballage" (literally "wrapping"). Some would use "empaquetage" but that is less common.
So "electronics packaging" would translate to "emballage/empaquetage de composants électroniques".