Patent ID: 9111908
Filing Date: 2015-08-18
Classification: H01L

Abstract:
1. A split-gate non-volatile memory (NVM) cell, comprising: a first gate over a substrate, wherein the first gate is formed from a first conductive layer; a second conductive layer over the first gate; a dielectric charge storage layer over the second conductive layer and the substrate, wherein the dielectric later charge storage layer overlaps a first sidewall of the first gate; and a second gate over the dielectric charge storage layer, wherein the second gate is formed from a third conductive layer that overlaps the first sidewall of the first gate such that a first portion of the second gate is over the first gate and a second portion of the second gate is not over the first gate, wherein the conductive layer is between the first portion of the second gate and the first gate, the charge storage layer is between the first gate and the second gate, and wherein a second sidewall of the first gate and a sidewall of the second gate are aligned with each other in a vertical direction.