公开(公告)号：US20150102341A1

公开(公告)日：2015-04-16

申请号：US14505004

申请日：2014-10-02

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Yasuharu HOSAKA ,  Toshimitsu OBONAI ,  Junichi KOEZUKA ,  Yukinori SHIMA ,  Masahiko HAYAKAWA ,  Takashi HAMOCHI ,  Suzunosuke HIRAISHI

IPC: H01L29/786 ,  H01L29/24

CPC classification number: H01L21/477 ,  H01L21/02112 ,  H01L21/02403 ,  H01L21/28 ,  H01L29/24 ,  H01L29/78606 ,  H01L29/7869

Abstract: To suppress a change in electrical characteristics and to improve reliability in a semiconductor device using a transistor including an oxide semiconductor. The semiconductor device includes a gate electrode over an insulating surface, an oxide semiconductor film overlapping with the gate electrode, a gate insulating film which is between the gate electrode and the oxide semiconductor film and is in contact with a surface of the oxide semiconductor film, a protective film in contact with an opposite surface of the surface of the oxide semiconductor film, and a pair of electrodes in contact with the oxide semiconductor film. In the gate insulating film or the protective film, the amount of gas having a mass-to-charge ratio m/z of 17 released by heat treatment is greater than the amount of nitrogen oxide released by heat treatment.

Abstract translation: 为了抑制电特性的改变，并提高使用包括氧化物半导体的晶体管的半导体器件的可靠性。 半导体器件包括绝缘表面上的栅电极，与栅电极重叠的氧化物半导体膜，位于栅电极和氧化物半导体膜之间并与氧化物半导体膜的表面接触的栅极绝缘膜， 与氧化物半导体膜的表面的相对表面接触的保护膜和与氧化物半导体膜接触的一对电极。 在栅极绝缘膜或保护膜中，通过热处理释放的质荷比为m / z为17的气体的量比通过热处理释放的氮氧化物的量大。

公开(公告)号：US20140374745A1

公开(公告)日：2014-12-25

申请号：US14303629

申请日：2014-06-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hironobu TAKAHASHI ,  Yukinori SHIMA ,  Yasuharu HOSAKA ,  Toshimitsu OBONAI ,  Masashi TSUBUKU

IPC: H01L27/146 ,  H01L29/786

CPC classification number: H01L27/14663 ,  H01L27/14616 ,  H01L27/14625 ,  H01L27/14692 ,  H01L29/42384 ,  H01L29/4908 ,  H01L29/7869 ,  H04N5/3745

Abstract: An imaging device that is highly stable to irradiation with radial rays such as X-rays and can inhibit a decrease in electrical characteristics is provided. The imaging device takes an image with radial rays such as X-rays and includes pixel circuits arranged in a matrix and a scintillator overlapping the pixel circuits. The pixel circuits each includes a switching transistor with an extremely small off-state current and a light-receiving element which is configured to convert the radial rays to electrical charges. A gate insulating film of the switching transistor has a stacked structure including a silicon nitride film with a thickness of 100 nm to 400 nm and a silicon oxide film or a silicon oxynitride film with a thickness of 5 nm to 20 nm.

Abstract translation: 提供了对X射线等径向射线照射高度稳定的成像装置，能够抑制电特性的降低。 成像装置拍摄具有诸如X射线的径向射线的图像，并且包括以矩阵布置的像素电路和与像素电路重叠的闪烁体。 像素电路各自包括非常小的截止电流的开关晶体管和被配置为将径向射线转换成电荷的光接收元件。 开关晶体管的栅极绝缘膜具有包括厚度为100nm至400nm的氮化硅膜和厚度为5nm至20nm的氧化硅膜或氮氧化硅膜的叠层结构。