Semiconductors. Ninth grade. PhysicsSemiconductors. Ninth grade. Physics1979Queuebrick VideoQueueLWatchedWFavoriteFListsDiscussionWhere to watchCopy short link1979Semiconductors. Ninth grade. Physics18mDirected by Vladimir Kobrin1979A short film by Vladimir Kobrin.DirectorVladimir KobrinOverviewDiscussionCastCrewDetailsWhere to watchNo cast listed.