Semiconductor device and manufacturing method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7732819
APP PUB NO 20080308804A1
SERIAL NO

12184418

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTDKANAGAWA KANAGAWA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akimoto, Kengo Kanagawa, JP 440 44355
Honda, Tatsuya Kanagawa, JP 207 27513
Sone, Norihito Kanagawa, JP 23 22933

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