Patent ID: 7709882
Filing Date: 2010-05-04
Classification: B82Y,G11B

Abstract:
1. A storage device, comprising: a pn junction disposed in a substrate, said junction having a buried p-doped layer and an n-doped surface layer, a length of the n-doped surface layer extending contiguously along an x-axis from a first x coordinate to a second x coordinate greater than the first x coordinate, and a height of the n-doped surface layer extending along a y-axis, the y-axis perpendicular to the x-axis; a charge trapping storage structure disposed over said n-doped layer, a length of the charge trapping storage structure extending contiguously along the x-axis from a third x coordinate to a fourth x coordinate greater than the third x coordinate, and a height of the charge trapping storage structure extending along the y-axis, the third x coordinate being greater than the first x coordinate, the fourth x coordinate being less than the second x coordinate; and a conductive gate, wherein said conductive gate and said charge trapping storage structure move relative to the other, and wherein an electric field applied across said pn junction and said conductive gate generates trapped charge in said charge trapping storage structure.