Semiconductor integrated circuit having N-channel and P-channel transistors

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United States of America Patent

PATENT NO 5616935
SERIAL NO

08382410

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Abstract

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The absolute value of the threshold voltage of a P-channel TFT is reduced by making its channel length shorter than that of an N-channel TFT by at least 20%, to thereby approximately equalize the threshold voltage absolute values of those TFTs.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTDKANAGAWA-KEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koyama, Jun Kanagawa, JP 1634 57063
Takemura, Yasuhiko Kanagawa, JP 582 31804

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