Patent ID: 8791522
Filing Date: 2014-07-29
Classification: H01L

Abstract:
1. A non-volatile memory, comprising: a substrate; a charge storage structure disposed on the substrate; a first doped region and a second doped region disposed in the substrate at two sides of the charge storage structure respectively; and a gate disposed on the charge storage structure, wherein the charge storage structure comprises a dielectric main body, a first charge storage spacer, and a second charge storage spacer, the first charge storage spacer and the second charge storage spacer are disposed in the dielectric main body in minor symmetry and separated from each other, the first charge storage spacer is adjacent to the first doped region, the second charge storage spacer is adjacent to the second doped region, the first charge storage spacer is overlapped with a part of the first doped region, and the second charge storage spacer is overlapped with a part of the second doped region wherein the first charge storage spacer and the second charge storage spacer have an L shape respectively, a horizontal portion of the first charge storage spacer and a horizontal portion of the second charge storage spacer extend away from each other, and the gate is located completely on top of the first charge storage spacer and the second charge storage spacer.