Semiconductor device

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United States of America Patent

PATENT NO 9882059
SERIAL NO

14571981

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Abstract

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To provide a transistor having a high on-state current. A semiconductor device includes a first insulator containing excess oxygen, a first oxide semiconductor over the first insulator, a second oxide semiconductor over the first oxide semiconductor, a first conductor and a second conductor which are over the second oxide semiconductor and are separated from each other, a third oxide semiconductor in contact with side surfaces of the first oxide semiconductor, a top surface and side surfaces of the second oxide semiconductor, a top surface of the first conductor, and a top surface of the second conductor, a second insulator over the third oxide semiconductor, and a third conductor facing a top surface and side surfaces of the second oxide semiconductor with the second insulator and the third oxide semiconductor therebetween. The first oxide semiconductor has a higher oxygen-transmitting property than the third oxide semiconductor.

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Patent Owner(s)

  • SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishiyama, Takahisa Kanagawa, JP 15 235
Okazaki, Yutaka Kanagawa, JP 104 2248
Okuno, Naoki Kanagawa, JP 46 171
Sato, Yuhei Kanagawa, JP 56 994
Shimomura, Akihisa Kanagawa, JP 210 3295
Suzawa, Hideomi Kanagawa, JP 312 10152
Tanaka, Tetsuhiro Kanagawa, JP 151 2711
Yamamoto, Yoshitaka Nara, JP 110 3127
Yamane, Yasumasa Kanagawa, JP 93 1061
Yamazaki, Shunpei Tokyo, JP 7526 239327

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