Semiconductor device having multi-gate insulating layers and methods of fabricating the same

    公开(公告)号:US06642105B2

    公开(公告)日:2003-11-04

    申请号:US10131010

    申请日:2002-04-24

    Abstract: A semiconductor device having multi-gate insulating layers and methods of fabricating the same are provided. The semiconductor device includes an isolation region disposed at a predetermined region of a semiconductor substrate. The isolation region defines at least one first active region and at least one second active region. The first active region is covered with a first gate insulating layer, and the second active region is covered with a second gate insulating layer which is thinner than the first gate insulating layer. Preferably, the top surface of the first gate insulating layer has the same height as the that of the second gate insulating layer. The isolation region is filled with an isolation layer which preferably covers the entire sidewalls of the first and second gate insulating layers. A typical method includes the step of selectively forming a first gate insulating layer at a predetermined region of a semiconductor substrate. A second gate insulating layer which is thinner than the first insulating layer is selectively formed at the surface of the semiconductor substrate adjacent to the first gate insulating layer. Preferably, the bottom surface of the first gate insulating layer is lower than that of the second gate insulating layer. The first and second gate insulating layers are covered with a conductive layer. The conductive layer, the first and second gate insulating layers, and the substrate are etched to form an isolation region, for example, a trench region, defining a first active region under the first gate insulating layer and a second active region under the second gate insulating. An isolation layer is formed in the trench region. The isolation layer preferably covers the entire sidewalls of the first and second gate insulating layers.

    Method for forming conductive line of semiconductor device
    22.
    发明授权
    Method for forming conductive line of semiconductor device 失效
    形成半导体器件导线的方法

    公开(公告)号:US5629238A

    公开(公告)日:1997-05-13

    申请号:US557534

    申请日:1995-11-14

    CPC classification number: H01L21/76831 H01L21/76877

    Abstract: A method for forming a conductive line uses a fluorine doped oxide layer as an insulating layer between conductive lines. The method comprises the steps of: (a) forming a fluorine doped oxide layer on a semiconductor substrate on which a lower structure is formed; (b) etching the oxide layer of the region where a conductive line is to be formed, thereby forming a trench; (c) forming an insulating layer on the overall surface of the resultant substrate; depositing conductive material on the resultant substrate; and (e) etching back the conductive material so that the conductive material is left on the trench only, thereby forming a conductive line. In this method, the conductive line is formed of aluminum-containing material and the insulating layer is formed of silicon dioxide. In the present invention, the insulating layer is interposed between the fluorine doped oxide layer and the aluminum-containing conductive line and thus the conductive line is free from corrosion.

    Abstract translation: 形成导线的方法使用氟掺杂氧化物层作为导线之间的绝缘层。 该方法包括以下步骤:(a)在形成下部结构的半导体衬底上形成氟掺杂氧化物层; (b)蚀刻要形成导电线的区域的氧化物层,从而形成沟槽; (c)在所得基板的整个表面上形成绝缘层; 在所得基板上沉积导电材料; 和(e)蚀刻导电材料,使得导电材料仅留在沟槽上,从而形成导电线。 在该方法中,导电线由含铝材料形成,绝缘层由二氧化硅形成。 在本发明中,绝缘层介于氟掺杂氧化物层和含铝导电线之间,因此导电线无腐蚀。

    Semiconductor device and method of operating the semiconductor device
    24.
    发明授权
    Semiconductor device and method of operating the semiconductor device 有权
    半导体器件及半导体器件的操作方法

    公开(公告)号:US08638163B2

    公开(公告)日:2014-01-28

    申请号:US13550848

    申请日:2012-07-17

    CPC classification number: H01L29/78684 G11C29/12005

    Abstract: A semiconductor device and a method of operating the semiconductor device. The semiconductor device includes a voltage generator configured to generate a test voltage, a graphene transistor configured to receive a gate-source voltage based on the test voltage, and a detector configured to detect whether the gate-source voltage is a Dirac voltage of the graphene transistor, and output a feedback signal applied to the voltage generator indicating whether the gate-source voltage is the Dirac voltage.

    Abstract translation: 一种半导体器件和操作半导体器件的方法。 半导体器件包括被配置为产生测试电压的电压发生器,被配置为基于测试电压接收栅极 - 源极电压的石墨烯晶体管,以及检测器,被配置为检测栅极 - 源极电压是否为石墨烯的狄拉克电压 并输出施加到电压发生器的反馈信号,指示栅极 - 源极电压是否为狄拉克电压。

    SEMICONDUCTOR DEVICE AND METHOD OF OPERATING THE SEMICONDUCTOR DEVICE
    25.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD OF OPERATING THE SEMICONDUCTOR DEVICE 有权
    半导体器件和操作半导体器件的方法

    公开(公告)号:US20130069714A1

    公开(公告)日:2013-03-21

    申请号:US13550848

    申请日:2012-07-17

    CPC classification number: H01L29/78684 G11C29/12005

    Abstract: A semiconductor device and a method of operating the semiconductor device. The semiconductor device includes a voltage generator configured to generate a test voltage, a graphene transistor configured to receive a gate-source voltage based on the test voltage, and a detector configured to detect whether the gate-source voltage is a Dirac voltage of the graphene transistor, and output a feedback signal applied to the voltage generator indicating whether the gate-source voltage is the Dirac voltage.

    Abstract translation: 一种半导体器件和操作半导体器件的方法。 半导体器件包括被配置为产生测试电压的电压发生器,被配置为基于测试电压接收栅极 - 源极电压的石墨烯晶体管,以及检测器,被配置为检测栅极 - 源极电压是否为石墨烯的狄拉克电压 并输出施加到电压发生器的反馈信号,指示栅极 - 源极电压是否为狄拉克电压。

    Vertical channel field effect transistors having insulating layers thereon and methods of fabricating the same
    26.
    发明申请
    Vertical channel field effect transistors having insulating layers thereon and methods of fabricating the same 有权
    具有绝缘层的垂直沟道场效应晶体管及其制造方法

    公开(公告)号:US20050145932A1

    公开(公告)日:2005-07-07

    申请号:US10780067

    申请日:2004-02-17

    CPC classification number: H01L29/7851 H01L29/66795 H01L29/7854

    Abstract: A field effect transistor can include a vertical channel protruding from a substrate including a source/drain region junction between the vertical channel and the substrate, and an insulating layer extending on a side wall of the vertical channel toward the substrate to beyond the source/drain region junction. The transistor can also include a nitride layer extending on the side wall away from the substrate to beyond the insulating layer, a second insulating layer extending on the side wall that is separated from the channel by the nitride layer, and a gate electrode extending on the side wall toward the substrate to beyond the source/drain region junction. Related methods are also disclosed.

    Abstract translation: 场效应晶体管可以包括从包括垂直沟道和衬底之间的源极/漏极区域的衬底突出的垂直沟道,以及在垂直沟道的侧壁上朝衬底延伸超过源/漏极的绝缘层 区域交界处 晶体管还可以包括在离开衬底的侧壁上延伸超过绝缘层的氮化物层,在侧壁上延伸的第二绝缘层,其通过氮化物层与沟道分离,以及栅电极 侧壁朝向衬底以超出源/漏区结。 还公开了相关方法。

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