Semiconductor device and driving method of semiconductor device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9640255
APP PUB NO 20160284407A1
SERIAL NO

15081998

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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To provide a semiconductor device including a volatile memory which achieves high speed operation and lower power consumption. For example, the semiconductor device includes an SRAM provided with first and second data holding portions and a non-volatile memory provided with third and fourth second data holding portions. The first data holding portion is electrically connected to the fourth data holding portion through a transistor. The second data holding portion is electrically connected to the third data holding portion through a transistor. While the SRAM holds data, the transistor is on so that both the SRAM and the non-volatile memory hold the data. Then, the transistor is turned off before supply of power is stopped, so that the data becomes non-volatile.

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Patent Owner(s)

Patent OwnerAddress
SEMICONDUCTOR ENERGY LABORATORY CO LTDATSUGI-SHI KANAGAWA-KEN 243-0036

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Onuki, Tatsuya Kanagawa, JP 178 781
Uesugi, Wataru Kanagawa, JP 32 307

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