SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICE

Disclosed is a semiconductor device including: a semiconductor substrate having a first surface; a first conductive film (CF1) that is located over the first surface and is formed to circle in plan view; a second conductive film (CF2) that is located over the first surface and surrounds the outer pe...

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Bibliographic Details
Main Author AMO, Atsushi
Format Patent
LanguageEnglish
French
German
Published 22.07.2020
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:Disclosed is a semiconductor device including: a semiconductor substrate having a first surface; a first conductive film (CF1) that is located over the first surface and is formed to circle in plan view; a second conductive film (CF2) that is located over the first surface and surrounds the outer periphery of the first conductive film in plan view; a first insulating spacer (ISS1) located between the first conductive film and the second conductive film; a first gate insulating film (GIF1), comprising a charge accumulation layer, that is located between the first surface and the first conductive film and the accumulated amount of charges of which changes due to a change in the voltage between the first conductive film and the semiconductor substrate; and a second gate insulating film (GIF2) located between the first surface and the second conductive film.
Bibliography:Application Number: EP20190155607