Patent ID: 9704975
Date: 2017-07-11
CPC Classifications: H01L

Claim:
1. A non-volatile memory device, comprising: a semiconductor substrate; a well region of a first conductivity type situated on the semiconductor substrate; dopant implanted into an ion implantation area, the ion implantation area situated in the well region; a floating gate situated on the well region; a control gate situated on both sides of the floating gate; a tunnel oxide film situated between the floating gate and the ion implantation area; a dielectric film situated between the floating gate and the control gate, wherein the dielectric film is formed to be in contact with a sidewall of the floating gate and a sidewall of the tunnel oxide film; and a gate insulator film disposed between the control gate and the ion implantation area, wherein a thickness of the gate insulator film is smaller than a thickness of the dielectric film.