Semiconductor device with ONO film

US8994093B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8994093-B2
Application numberUS-4908908-A
CountryUS
Kind codeB2
Filing dateMar 14, 2008
Priority dateMar 15, 2007
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A semiconductor device includes bit lines provided in a semiconductor substrate; an ONO film that is provided along the surface of the semiconductor substrate and is made of a tunnel oxide film, a trap layer, and a top oxide film; and an oxide film that is provided on the surface of the semiconductor substrate in the middle between the bit lines and contacts the side face of the ONO film, in which the film thickness of the oxide film is larger than the sum of the thicknesses of the tunnel oxide film and the top oxide film, and smaller than the thickness of the ONO film.

First claim

Opening claim text (preview).

We claim: 1. A semiconductor device comprising: a semiconductor substrate; a bit line provided in the semiconductor substrate; an oxide-nitride-oxide (ONO) film that is provided along a surface of the semiconductor substrate, and includes a tunnel oxide film, a trap layer made of a nitride film, and a top oxide film; and an oxide film, formed from the oxidation of the nitride film, that is provided on the surface of the semiconductor substrate in a middle portion between bit…

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What does patent US8994093B2 cover?
A semiconductor device includes bit lines provided in a semiconductor substrate; an ONO film that is provided along the surface of the semiconductor substrate and is made of a tunnel oxide film, a trap layer, and a top oxide film; and an oxide film that is provided on the surface of the semiconductor substrate in the middle between the bit lines and contacts the side face of the ONO film, in wh…
Who is the assignee on this patent?
Hayakawa Yukio, Utsuno Yukihiro, Spansion Llc
What technology area does this patent fall under?
Primary CPC classification H10D30/699. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).