Method for fabricating semiconductor device
    51.
    发明授权
    Method for fabricating semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US08772112B1

    公开(公告)日:2014-07-08

    申请号:US13830260

    申请日:2013-03-14

    Abstract: Disclosed is a method for fabricating a semiconductor device including: sequentially forming a first insulating film and a first barrier layer on a first surface of a substrate; etching the first barrier layer to form a first barrier layer pattern; etching the first insulating film to form a first insulating film pattern; removing the first barrier layer pattern and forming a first type epitaxial layer on an exposed first portion of the substrate; forming a second insulating film and a second barrier layer on the first type epitaxial layer and the first insulating film pattern; etching the second barrier layer to form a second barrier layer pattern; etching the second insulating film to form a second insulating film pattern, and etching the first insulating film pattern; and forming a second type epitaxial layer on an exposed second portion of the first surface of the n substrate.

    Abstract translation: 公开了一种制造半导体器件的方法,包括:在衬底的第一表面上依次形成第一绝缘膜和第一阻挡层; 蚀刻第一阻挡层以形成第一阻挡层图案; 蚀刻第一绝缘膜以形成第一绝缘膜图案; 去除所述第一阻挡层图案并在所述基板的暴露的第一部分上形成第一类型的外延层; 在所述第一型外延层和所述第一绝缘膜图案上形成第二绝缘膜和第二阻挡层; 蚀刻所述第二阻挡层以形成第二阻挡层图案; 蚀刻第二绝缘膜以形成第二绝缘膜图案,并蚀刻第一绝缘膜图案; 以及在所述n基板的所述第一表面的暴露的第二部分上形成第二类型的外延层。

    SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME

    公开(公告)号:US20250022917A1

    公开(公告)日:2025-01-16

    申请号:US18524544

    申请日:2023-11-30

    Abstract: An embodiment semiconductor device includes an N− type layer having a trench therein, a P type region within the N− type layer, an N+ type region within the P type region, a gate electrode within the trench including a first gate electrode having an upper surface lower than an upper surface of the P type region and a second gate electrode having an upper surface lower than the upper surface of the first gate electrode, and source and drain electrodes insulated from the gate electrode, wherein the N+ type region includes a first N+ type region on a side of the first gate electrode and having a lower surface lower than the upper surface of the first gate electrode and a second N+ type region on a side of the second gate electrode and having a lower surface lower than the lower surface of the first N+ type region.

    Semiconductor device and method manufacturing the same

    公开(公告)号:US10396195B2

    公开(公告)日:2019-08-27

    申请号:US15980064

    申请日:2018-05-15

    Inventor: Dae Hwan Chun

    Abstract: A semiconductor device is provided and includes an n− type layer disposed at a substrate first surface. A trench, n type region, and p+ type region are disposed on the n− type layer. A p type region is disposed on the n type region. An n+ type region is disposed on the p type region. A gate insulating layer is disposed in the trench. A gate electrode is disposed on the gate insulating layer. A source electrode is disposed on an insulating layer disposed on the gate electrode, n+ type region, and p+ type region. A drain electrode is disposed at a substrate second surface. The n type region includes a first portion contacting the trench side surface and extending parallel to a substrate upper surface and a second portion contacting the first portion, separated from the trench side surface, and extending vertical to the substrate upper surface.

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