Method for producing a plug in a semiconductor body
    14.
    发明授权
    Method for producing a plug in a semiconductor body 有权
    用于制造半导体本体中的插头的方法

    公开(公告)号:US08088660B1

    公开(公告)日:2012-01-03

    申请号:US12968817

    申请日:2010-12-15

    IPC分类号: H01L21/336

    摘要: A method for producing an electrode in a semiconductor layer includes providing a substrate with a first surface and a second surface, forming a first trench having sidewalls and extending into the substrate from the first surface and forming a plug in the first trench. The method further includes reducing a thickness of the semiconductor substrate by removing semiconductor material beginning at the first surface so as to at least partially uncover sidewalls of the plug and forming a semiconductor layer on the semiconductor substrate, the semiconductor layer at least partially covering the uncovered sidewalls of the plug, and having an upper surface.

    摘要翻译: 用于制造半导体层中的电极的方法包括:提供具有第一表面和第二表面的衬底,形成具有侧壁并从第一表面延伸到衬底中并在第一沟槽中形成插头的第一沟槽。 该方法还包括通过从第一表面开始去除半导体材料来减小半导体衬底的厚度,以便至少部分地露出插塞的侧壁并在半导体衬底上形成半导体层,半导体层至少部分地覆盖未覆盖 插头的侧壁,并具有上表面。

    SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING
    17.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING 有权
    半导体器件及其制造方法

    公开(公告)号:US20100181641A1

    公开(公告)日:2010-07-22

    申请号:US12355343

    申请日:2009-01-16

    申请人: Oliver Blank

    发明人: Oliver Blank

    IPC分类号: H01L29/06 H01L21/71

    摘要: A semiconductor and method for manufacturing a semiconductor device. In one embodiment the method includes providing a semiconductor substrate with a first substrate surface and at least one trench having at least one trench surface. The trench extends from the first substrate surface into the semiconductor substrate. The trench has a first trench section and a second trench section. The trench surface is exposed in an upper portion of the first and second trench sections and covered with a first insulating layer in a lower portion. A second insulating layer is formed at least on the exposed trench surface in the upper portion. A conductive layer is formed on the second insulating layer at least in the upper portion, wherein the second insulating layer electrically insulates the conductive layer from the semiconductor substrate. The conductive layer is removed in the first trench section without removing the conductive layer in the second trench section.

    摘要翻译: 半导体装置及其制造方法。 在一个实施例中,该方法包括提供具有第一衬底表面的半导体衬底和具有至少一个沟槽表面的至少一个沟槽。 沟槽从第一衬底表面延伸到半导体衬底中。 沟槽具有第一沟槽部分和第二沟槽部分。 沟槽表面暴露在第一和第二沟槽部分的上部,并且在下部被第一绝缘层覆盖。 至少在上部的暴露的沟槽表面上形成第二绝缘层。 导电层至少在上部形成在第二绝缘层上,其中第二绝缘层使导电层与半导体衬底电绝缘。 在第一沟槽部分中去除导电层,而不去除第二沟槽部分中的导电层。

    Semiconductor device with field electrode
    18.
    发明授权
    Semiconductor device with field electrode 有权
    具有场电极的半导体器件

    公开(公告)号:US09443972B2

    公开(公告)日:2016-09-13

    申请号:US13307465

    申请日:2011-11-30

    申请人: Oliver Blank

    发明人: Oliver Blank

    摘要: A method of producing a semiconductor device includes providing a semiconductor body having a first surface and a dielectric layer arranged on the first surface and forming at least one first trench in the dielectric layer. The at least one first trench extends to the semiconductor body and defines a dielectric mesa region in the dielectric layer. The method further includes forming a second trench in the dielectric mesa region distant to the at least one first trench, forming a semiconductor layer on uncovered regions of the semiconductor body in the at least one first trench and forming a field electrode in the second trench.

    摘要翻译: 一种制造半导体器件的方法包括提供具有布置在第一表面上的第一表面和电介质层的半导体本体,并在电介质层中形成至少一个第一沟槽。 所述至少一个第一沟槽延伸到所述半导体主体并限定所述电介质层中的电介质台面区域。 该方法还包括在远离至少一个第一沟槽的电介质台面区域中形成第二沟槽,在至少一个第一沟槽中的半导体本体的未覆盖区域上形成半导体层,并在第二沟槽中形成场电极。

    Semiconductor device with improved robustness
    19.
    发明授权
    Semiconductor device with improved robustness 有权
    半导体器件具有改进的鲁棒性

    公开(公告)号:US08884360B2

    公开(公告)日:2014-11-11

    申请号:US13404161

    申请日:2012-02-24

    IPC分类号: H01L29/78

    摘要: A semiconductor device includes a first contact in low Ohmic contact with a source region of the device and a first portion of a body region of the device formed in an active area of the device, and a second contact in low Ohmic contact with a second portion of the body region formed in a peripheral area of the device. The minimum width of the second contact at a first surface of the device is larger than the minimum width of the first contact at the first surface so that maximum current density during commutating the semiconductor device is reduced and thus the risk of device damage during hard commutating is also reduced.

    摘要翻译: 半导体器件包括与器件的源极区域的低欧姆接触的第一接触和形成在器件的有源区域中的器件的体区的第一部分,以及与第二部分的低欧姆接触的第二接触 形成在装置的周边区域中的身体区域。 器件第一表面处的第二触点的最小宽度大于第一表面处的第一接触的最小宽度,使得在半导体器件的整流期间的最大电流密度降低,并且因此在硬整流期间器件损坏的风险 也减少了。

    Semiconductor device comprising trench gate and buried source electrodes
    20.
    发明授权
    Semiconductor device comprising trench gate and buried source electrodes 有权
    半导体器件包括沟槽栅和掩埋源电极

    公开(公告)号:US08796764B2

    公开(公告)日:2014-08-05

    申请号:US12242195

    申请日:2008-09-30

    IPC分类号: H01L29/66

    摘要: A semiconductor device includes a semiconductor substrate, a trench, a buried insulated source electrode arranged in a bottom portion of the trench, a first gate electrode and a second gate electrode arranged in an upper portion of the trench and spaced apart from one another. A surface gate contact extends into the upper portion of the trench and is in physical and electrical contact with the first gate electrode and second gate electrode.

    摘要翻译: 半导体器件包括半导体衬底,沟槽,布置在沟槽的底部中的埋入绝缘源电极,布置在沟槽的上部并彼此间隔开的第一栅电极和第二栅电极。 表面栅极接触延伸到沟槽的上部,并与第一栅电极和第二栅电极物理和电接触。