Semiconductor device and manufacturing method thereof

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United States of America Patent

PATENT NO 9780225
SERIAL NO

14518126

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Abstract

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A semiconductor device capable of high speed operation is provided. Further, a semiconductor device in which change in electric characteristics due to a short channel effect is hardly caused is provided. An oxide semiconductor having crystallinity is used for a semiconductor layer of a transistor. A channel formation region, a source region, and a drain region are formed in the semiconductor layer. The source region and the drain region are formed by self-aligned process in which one or more elements selected from Group 15 elements are added to the semiconductor layer with the use of a gate electrode as a mask. The source region and the drain region can have a wurtzite crystal structure.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTDATSUGI-SHI KANAGAWA-KEN 243

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamazaki, Shunpei Setagaya, JP 7534 239327

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