Patent ID: 9502257
Filing Date: 2016-11-22
CPC Classification: H01L

Claim Text:
1. A non-volatile memory device, the device comprising: a floating gate insulating layer disposed on a substrate; a floating gate insulated from the substrate by the floating gate insulating layer; a first dielectric region formed perpendicular to the floating gate insulating layer on a first sidewall of the floating gate; a second dielectric region formed perpendicular to the floating gate insulating layer on a second sidewall of the floating gate; a first control gate at a side of the first dielectric region on the first sidewall of the floating gate distal from the floating gate; and a second control gate at a side of the second dielectric region on the second sidewall of the floating gate distal from the floating gate, wherein the first control gate and the second control gate are in contact with each other, a second width of the second control gate is wider than a first width of the first control gate, and the first width extends perpendicularly from the side of the first dielectric region in a direction that is opposite to a direction in which the second width extends from the side of the second dielectric region and is parallel to a direction of a channel.