公开(公告)号：US20220037532A1

公开(公告)日：2022-02-03

申请号：US17504923

申请日：2021-10-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi TORIUMI ,  Takashi HAMADA ,  Tetsunori MARUYAMA ,  Yuki IMOTO ,  Yuji ASANO ,  Ryunosuke HONDA ,  Shunpei YAMAZAKI

IPC: H01L29/786 ,  H01L29/24 ,  H01L29/51 ,  H01L29/49 ,  H01L29/417 ,  H01L27/12 ,  H01L27/146 ,  H01L27/1156 ,  H01L27/06 ,  H01L29/423 ,  H01L21/822

Abstract: A minute transistor is provided that includes a first insulator, a second insulator, a first, conductor, a second conductor, and third conductor, in which an angle is formed between a side surface of the first insulator and a top surface of the first conductor, and a length between the first conductor and a surface of the second conductor closest to the first conductor is at least greater than a length between the first conductor and the third conductor.

公开(公告)号：US20220285555A1

公开(公告)日：2022-09-08

申请号：US17743956

申请日：2022-05-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichi KOEZUKA ,  Kenichi OKAZAKI ,  Yukinori SHIMA ,  Shinpei MATSUDA ,  Haruyuki BABA ,  Ryunosuke HONDA

IPC: H01L29/786 ,  H01L27/12 ,  H01L29/66 ,  H01L29/778

Abstract: To improve field-effect mobility and reliability in a transistor including an oxide semiconductor film. A semiconductor device includes a transistor including an oxide semiconductor film. The transistor includes a region where the maximum value of field-effect mobility of the transistor at a gate voltage of higher than 0 V and lower than or equal to 10 V is larger than or equal to 40 and smaller than 150; a region where the threshold voltage is higher than or equal to minus 1 V and lower than or equal to 1 V; and a region where the S value is smaller than 0.3 V/decade.

公开(公告)号：US20210082920A1

公开(公告)日：2021-03-18

申请号：US16961976

申请日：2019-01-15

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yusuke NONAKA ,  Noritaka ISHIHARA ,  Tomoki HIRAMATSU ,  Ryunosuke HONDA ,  Tomoyo KAMOGAWA ,  Ryota HODO ,  Katsuaki TOCHIBAYASHI ,  Shunpei YAMAZAKI

IPC: H01L27/108 ,  H01L21/02 ,  H01L27/1156 ,  H01L29/786

Abstract: A semiconductor device having high operation frequency is provided. The semiconductor device includes a transistor including a first conductive layer, a first insulating layer, a second insulating layer, a first oxide, a second oxide, a third oxide, a third insulating layer, and a second conductive layer that are stacked in this order, and a fourth insulating layer. The first conductive layer and the second conductive layer include a region overlapping with the second oxide. In a channel width direction of the transistor, a level of the bottom surface of the second oxide is from more than or equal to −5 nm to less than 0 nm when a level of a region of the bottom surface of the second conductive layer which does not overlap with the second oxide is regarded as a reference.

公开(公告)号：US20250006846A1

公开(公告)日：2025-01-02

申请号：US18764643

申请日：2024-07-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Junichi KOEZUKA ,  Kenichi OKAZAKI ,  Yukinori SHIMA ,  Shinpei MATSUDA ,  Haruyuki BABA ,  Ryunosuke HONDA

IPC: H01L29/786 ,  H01L21/02 ,  H01L21/8234 ,  H01L27/12 ,  H01L29/24 ,  H01L29/66 ,  H01L29/778

Abstract: To improve field-effect mobility and reliability in a transistor including an oxide semiconductor film. A semiconductor device includes a transistor including an oxide semiconductor film. The transistor includes a region where the maximum value of field-effect mobility of the transistor at a gate voltage of higher than 0 V and lower than or equal to 10 V is larger than or equal to 40 and smaller than 150; a region where the threshold voltage is higher than or equal to minus 1 V and lower than or equal to 1 V; and a region where the S value is smaller than 0.3 V/decade.

公开(公告)号：US20200279951A1

公开(公告)日：2020-09-03

申请号：US16645669

申请日：2018-09-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Ryota HODO ,  Daisuke MATSUBAYASHI ,  Motomu KURATA ,  Ryunosuke HONDA

IPC: H01L29/786 ,  H01L29/24 ,  H01L29/66 ,  H01L21/02 ,  H01L27/105

Abstract: A semiconductor device with excellent electric characteristics is provided. The semiconductor device includes an oxide in a channel formation region. The semiconductor device includes the oxide over a substrate, a first insulator over the oxide, a second insulator over the first insulator, a third insulator, and a conductor over the third insulator. The oxide and the first insulator are in contact with each other in a region. An opening exposing the oxide is provided in the first insulator and the second insulator. The third insulator is placed to cover an inner wall and a bottom surface of the opening. The conductor is placed to fill the opening. The conductor has a region overlapping with the oxide with the third insulator between the conductor and the oxide. The first insulator contains an element other than a main component of the oxide.

公开(公告)号：US20190280019A1

公开(公告)日：2019-09-12

申请号：US16355913

申请日：2019-03-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichi KOEZUKA ,  Kenichi OKAZAKI ,  Yukinori SHIMA ,  Shinpei MATSUDA ,  Haruyuki BABA ,  Ryunosuke HONDA

IPC: H01L27/12 ,  H01L29/786 ,  H01L29/778 ,  H01L29/66

Abstract: To improve field-effect mobility and reliability in a transistor including an oxide semiconductor film. A semiconductor device includes a transistor including an oxide semiconductor film. The transistor includes a region where the maximum value of field-effect mobility of the transistor at a gate voltage of higher than 0 V and lower than or equal to 10 V is larger than or equal to 40 and smaller than 150; a region where the threshold voltage is higher than or equal to minus 1 V and lower than or equal to 1 V; and a region where the S value is smaller than 0.3 V/decade.

公开(公告)号：US20240322046A1

公开(公告)日：2024-09-26

申请号：US18675249

申请日：2024-05-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi TORIUMI ,  Takashi HAMADA ,  Tetsunori MARUYAMA ,  Yuki IMOTO ,  Yuji ASANO ,  Ryunosuke HONDA ,  Shunpei YAMAZAKI

IPC: H01L29/786 ,  H01L21/822 ,  H01L27/06 ,  H01L27/12 ,  H01L27/146 ,  H01L29/24 ,  H01L29/417 ,  H01L29/423 ,  H01L29/49 ,  H01L29/51 ,  H10B41/70

CPC classification number: H01L29/7869 ,  H01L21/8221 ,  H01L27/0688 ,  H01L27/1207 ,  H01L27/1225 ,  H01L27/14645 ,  H01L27/14649 ,  H01L29/24 ,  H01L29/41733 ,  H01L29/42384 ,  H01L29/4908 ,  H01L29/517 ,  H01L29/78648 ,  H01L29/78696 ,  H10B41/70

Abstract: A minute transistor is provided that includes a first insulator, a second insulator, a first, conductor, a second conductor, and third conductor, in which an angle is formed between a side surface of the first insulator and a top surface of the first conductor, and a length between the first conductor and a surface of the second conductor closest to the first conductor is at least greater than a length between the first conductor and the third conductor.

公开(公告)号：US20230378371A1

公开(公告)日：2023-11-23

申请号：US18364749

申请日：2023-08-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichi KOEZUKA ,  Kenichi OKAZAKI ,  Yukinori SHIMA ,  Shinpei MATSUDA ,  Haruyuki BABA ,  Ryunosuke HONDA

IPC: H01L29/786 ,  H01L29/778 ,  H01L21/8234 ,  H01L21/02 ,  H01L27/12 ,  H01L29/66

CPC classification number: H01L29/7869 ,  H01L29/7781 ,  H01L29/7782 ,  H01L29/7786 ,  H01L29/78648 ,  H01L21/823412 ,  H01L21/02565 ,  H01L27/1225 ,  H01L27/127 ,  H01L29/66969 ,  H01L29/78696 ,  H01L29/24

Abstract: To improve field-effect mobility and reliability in a transistor including an oxide semiconductor film. A semiconductor device includes a transistor including an oxide semiconductor film. The transistor includes a region where the maximum value of field-effect mobility of the transistor at a gate voltage of higher than 0 V and lower than or equal to 10 V is larger than or equal to 40 and smaller than 150; a region where the threshold voltage is higher than or equal to minus 1 V and lower than or equal to 1 V; and a region where the S value is smaller than 0.3 V/decade.

公开(公告)号：US20200335529A1

公开(公告)日：2020-10-22

申请号：US16918472

申请日：2020-07-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichi KOEZUKA ,  Kenichi OKAZAKI ,  Yukinori SHIMA ,  Shinpei MATSUDA ,  Haruyuki BABA ,  Ryunosuke HONDA

IPC: H01L27/12 ,  H01L29/778 ,  H01L29/786 ,  H01L29/66

Abstract: To improve field-effect mobility and reliability in a transistor including an oxide semiconductor film. A semiconductor device includes a transistor including an oxide semiconductor film. The transistor includes a region where the maximum value of field-effect mobility of the transistor at a gate voltage of higher than 0 V and lower than or equal to 10 V is larger than or equal to 40 and smaller than 150; a region where the threshold voltage is higher than or equal to minus 1 V and lower than or equal to 1 V; and a region where the S value is smaller than 0.3 V/decade.

公开(公告)号：US20180247958A1

公开(公告)日：2018-08-30

申请号：US15963141

申请日：2018-04-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Junichi KOEZUKA ,  Kenichi OKAZAKI ,  Yukinori SHIMA ,  Shinpei MATSUDA ,  Haruyuki BABA ,  Ryunosuke HONDA

IPC: H01L27/12 ,  H01L29/786 ,  H01L29/778 ,  H01L29/66 ,  H01L29/24

CPC classification number: H01L27/1225 ,  H01L27/127 ,  H01L29/24 ,  H01L29/66969 ,  H01L29/7781 ,  H01L29/7782 ,  H01L29/7786 ,  H01L29/7869 ,  H01L29/78696

Abstract: To improve field-effect mobility and reliability in a transistor including an oxide semiconductor film. A semiconductor device includes a transistor including an oxide semiconductor film. The transistor includes a region where the maximum value of field-effect mobility of the transistor at a gate voltage of higher than 0 V and lower than or equal to 10 V is larger than or equal to 40 and smaller than 150; a region where the threshold voltage is higher than or equal to minus 1 V and lower than or equal to 1 V; and a region where the S value is smaller than 0.3 V/decade.