Patent ID: 7115932

Claim:
A storage container structure comprising: a single layer semiconductor substrate including a doped semiconductor structure; a single layer of insulating material disposed over and in contact with said substrate, said insulating material of sufficient depth to include a container region disposed therein, said container region defining a container cross section having container side walls, a container bottom wall, and a container interior bounded in part by said container side walls and said container bottom wall; a patterning stop region comprising a doped topographic core, said patterning stop region disposed over and in contact with said substrate such that a substantial entirety of the width of said container region is defined by an upper surface of said patterning stop region; a charge storage lamina formed over an interior surface of said container region, said charge storage lamina comprising a first conductive film with at least a portion thereof in contact with said patterning stop region, a second conductive film defining a first surface thereon, and an insulating film disposed intermediate said first and second conductive films; a contact region defined by said charge storage lamina, wherein said contact region defines a contact region cross section having contact region side walls and a contact region bottom wall, and wherein said contact region side walls and said contact region bottom wall are defined by said first surface of said second conductive film; and an electrical contact in contact with said first surface of said second conductive film such that said electrical contact and said charge storage lamina occupy collectively at least a portion of said container region.