Semiconductor device including oxide semiconductor and manufacturing method thereof
    2.
    发明授权
    Semiconductor device including oxide semiconductor and manufacturing method thereof 有权
    包括氧化物半导体的半导体器件及其制造方法

    公开(公告)号:US09425045B2

    公开(公告)日:2016-08-23

    申请号:US13107283

    申请日:2011-05-13

    摘要: It is an object to provide a semiconductor device including an oxide semiconductor, which has stable electric characteristics and high reliability. An oxide semiconductor film serving as a channel formation region of a transistor is formed by a sputtering method at a temperature higher than 200° C., so that the number of water molecules eliminated from the oxide semiconductor film can be 0.5/nm3 or less according to thermal desorption spectroscopy. A substance including a hydrogen atom such as hydrogen, water, a hydroxyl group, or hydride which causes variation in the electric characteristics of a transistor including an oxide semiconductor is prevented from entering the oxide semiconductor film, whereby the oxide semiconductor film can be highly purified and made to be an electrically i-type (intrinsic) semiconductor.

    摘要翻译: 本发明的目的是提供一种具有稳定的电特性和高可靠性的氧化物半导体的半导体装置。 通过溅射法在高于200℃的温度下形成用作晶体管的沟道形成区的氧化物半导体膜,从氧化物半导体膜中除去的水分子数可以为0.5nm / nm 3以下 到热解吸光谱。 包含氢原子的物质,例如氢,水,羟基或氢化物,其导致包括氧化物半导体的晶体管的电特性发生变化,从而防止氧化物半导体膜进入氧化物半导体膜,由此氧化物半导体膜可以被高度纯化 并制成电i型(本征)半导体。

    Method for manufacturing semiconductor device including oxide semiconductor film
    3.
    发明授权
    Method for manufacturing semiconductor device including oxide semiconductor film 有权
    包括氧化物半导体膜的半导体器件的制造方法

    公开(公告)号:US08900916B2

    公开(公告)日:2014-12-02

    申请号:US12832329

    申请日:2010-07-08

    IPC分类号: H01L21/00

    摘要: A highly reliable semiconductor device which includes a thin film transistor having stable electric characteristics, and a manufacturing method thereof. In the manufacturing method of the semiconductor device which includes a thin film transistor where a semiconductor layer including a channel formation region is an oxide semiconductor layer, heat treatment which reduces impurities such as moisture to improve the purity of the oxide semiconductor layer and oxidize the oxide semiconductor layer (heat treatment for dehydration or dehydrogenation) is performed. Not only impurities such as moisture in the oxide semiconductor layer but also those existing in a gate insulating layer are reduced, and impurities such as moisture existing in interfaces between the oxide semiconductor layer and films provided over and under and in contact with the oxide semiconductor layer are reduced.

    摘要翻译: 一种高度可靠的半导体器件及其制造方法,其包括具有稳定电特性的薄膜晶体管。 在包括具有沟道形成区域的半导体层是氧化物半导体层的薄膜晶体管的半导体器件的制造方法中,减少诸如水分的杂质的热处理以提高氧化物半导体层的纯度并氧化氧化物 进行半导体层(脱水或脱氢的热处理)。 氧化物半导体层中的水分等杂质,以及存在于栅极绝缘层中的杂质都会降低,氧化物半导体层和氧化物半导体层之间的界面中存在的水分等杂质与氧化物半导体层 减少了

    Semiconductor memory device
    5.
    发明授权
    Semiconductor memory device 有权
    半导体存储器件

    公开(公告)号:US08772849B2

    公开(公告)日:2014-07-08

    申请号:US13410608

    申请日:2012-03-02

    申请人: Kosei Noda

    发明人: Kosei Noda

    IPC分类号: H01L29/76 H01L29/12

    摘要: A semiconductor memory device includes a semiconductor film; a first gate insulating film covering the semiconductor film; a first gate electrode provided over the semiconductor film with the first gate insulating film interposed therebetween; a first conductive film which is provided over the first gate insulating film; an insulating film which is provided over the first gate insulating film, exposes top surfaces of the first gate electrode and the first conductive film, and has a groove portion between the first gate electrode and the first conductive film; an oxide semiconductor film which is provided over the insulating film and is in contact with the first gate electrode, the first conductive film, and the groove portion; a second gate insulating film covering the oxide semiconductor film; and a second gate electrode provided over the oxide semiconductor film and the groove portion with the second gate insulating film interposed therebetween.

    摘要翻译: 半导体存储器件包括半导体膜; 覆盖半导体膜的第一栅极绝缘膜; 设置在所述半导体膜上的第一栅电极,其间插入有所述第一栅极绝缘膜; 设置在所述第一栅极绝缘膜上的第一导电膜; 设置在第一栅极绝缘膜上的绝缘膜暴露第一栅电极和第一导电膜的顶表面,并且在第一栅电极和第一导电膜之间具有沟槽部分; 氧化物半导体膜,设置在所述绝缘膜上并且与所述第一栅电极,所述第一导电膜和所述槽部接触; 覆盖氧化物半导体膜的第二栅极绝缘膜; 以及设置在所述氧化物半导体膜和所述沟槽部分上方的第二栅电极,其间插入有所述第二栅极绝缘膜。

    Method for manufacturing semiconductor device including a photoelectric conversion element
    7.
    发明授权
    Method for manufacturing semiconductor device including a photoelectric conversion element 有权
    包括光电转换元件的半导体器件的制造方法

    公开(公告)号:US08426231B2

    公开(公告)日:2013-04-23

    申请号:US12857820

    申请日:2010-08-17

    IPC分类号: H01L31/18

    摘要: An object of an embodiment of the disclosed invention is to provide a semiconductor device including a photoelectric conversion element with excellent characteristics. An object of an embodiment of the disclosed invention is to provide a semiconductor device including a photoelectric conversion device with excellent characteristic through a simple process. A semiconductor device is provided, which includes a light-transmitting substrate; an insulating layer over the light-transmitting substrate; and a photoelectric conversion element over the insulating layer. The photoelectric conversion element includes a single crystal semiconductor layer including a semiconductor region having an effect of photoelectric conversion, a semiconductor region having a first conductivity type, and a semiconductor region having a second conductivity type; a first electrode electrically connected to the semiconductor region having the first conductivity type; and a second electrode electrically connected to the semiconductor region having the second conductivity type.

    摘要翻译: 所公开的发明的一个实施例的目的是提供一种包括具有优异特性的光电转换元件的半导体器件。 所公开的发明的一个实施例的目的是提供一种包括通过简单工艺具有优异特性的光电转换装置的半导体器件。 提供了一种半导体器件,其包括透光衬底; 透光基板上的绝缘层; 和绝缘层上的光电转换元件。 光电转换元件包括具有具有光电转换效果的半导体区域,具有第一导电类型的半导体区域和具有第二导电类型的半导体区域的单晶半导体层; 电连接到具有第一导电类型的半导体区域的第一电极; 以及电连接到具有第二导电类型的半导体区域的第二电极。

    METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE
    9.
    发明申请
    METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE 有权
    制造半导体器件的方法

    公开(公告)号:US20120286260A1

    公开(公告)日:2012-11-15

    申请号:US13461808

    申请日:2012-05-02

    IPC分类号: H01L29/786 H01L21/34

    摘要: A highly reliable transistor which includes an oxide semiconductor and has high field-effect mobility and in which a variation in threshold voltage is small is provided. By using the transistor, a high-performance semiconductor device, which has been difficult to realize, is provided. The transistor includes an oxide semiconductor film which contains two or more kinds, preferably three or more kinds of elements selected from indium, tin, zinc, and aluminum. The oxide semiconductor film is formed in a state where a substrate is heated. Further, oxygen is supplied to the oxide semiconductor film with an adjacent insulating film and/or by ion implantation in a manufacturing process of the transistor, so that oxygen deficiency which generates a carrier is reduced as much as possible. In addition, the oxide semiconductor film is highly purified in the manufacturing process of the transistor, so that the concentration of hydrogen is made extremely low.

    摘要翻译: 提供了包括氧化物半导体并且具有高场效应迁移率并且其中阈值电压的变化小的高度可靠的晶体管。 通过使用晶体管,提供了难以实现的高性能半导体器件。 晶体管包括含有选自铟,锡,锌和铝中的两种或更多种,优选三种或更多种元素的氧化物半导体膜。 在加热基板的状态下形成氧化物半导体膜。 此外,在晶体管的制造过程中,通过相邻的绝缘膜和/或通过离子注入向氧化物半导体膜提供氧,从而尽可能地减少产生载流子的氧气缺乏。 此外,在晶体管的制造过程中,氧化物半导体膜被高度纯化,使得氢的浓度极低。

    SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE
    10.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE 有权
    半导体器件及制造半导体器件的方法

    公开(公告)号:US20120217499A1

    公开(公告)日:2012-08-30

    申请号:US13397839

    申请日:2012-02-16

    申请人: Yuta ENDO Kosei NODA

    发明人: Yuta ENDO Kosei NODA

    IPC分类号: H01L29/786 H01L21/20

    摘要: A method for forming a U-shaped vertically long groove in a region where a channel portion of a transistor is formed to make a channel length longer than an apparent channel length additionally requires a photolithography process for forming a groove; therefore, it has a problem in terms of costs and yield. By forming a three-dimensional channel region with the use of a gate electrode or a structure having an insulating surface, a channel length is made three times or more, preferably five times or more, further preferably ten times or more as long as a channel length when seen from the above.

    摘要翻译: 在形成沟道部分以形成沟道长度比表观沟道长度更长的区域中形成U形垂直长沟槽的方法另外需要用于形成沟槽的光刻工艺; 因此,在成本和产量方面存在问题。 通过使用栅电极或具有绝缘表面的结构形成三维沟道区,沟道长度为沟道长度的3倍以上,优选为沟道长度的5倍以上,更优选为10倍以上 从上面看的长度。