Patent ID: 7510936
Filing Date: 2009-03-31
Classification: G11C,H01L

Abstract:
1. A method for fabricating a nonvolatile memory device comprising: growing an oxide layer on a substrate; depositing an insulating layer on the oxide layer; patterning the insulating layer; forming injection gates on the lateral faces of the insulating layer; depositing a first polysilicon, a dielectric layer and a second polysilicon; patterning the second polysilicon, the dielectric layer and the second polysilicon to form gate structures; removing the insulating layer between the injection gates; forming source and drain extension regions around each of the gate structures by ion implantation; forming sidewall spacers on the lateral faces of the gate structures; and forming source and drain regions in the substrate by ion implantation, using the sidewall spacers as an ion implantation mask.