FINFET WITH DUAL WORKFUNCTION GATE STRUCTURE
    24.
    发明申请
    FINFET WITH DUAL WORKFUNCTION GATE STRUCTURE 有权
    具有双功能门结构的FINFET

    公开(公告)号:US20160181429A1

    公开(公告)日:2016-06-23

    申请号:US15054925

    申请日:2016-02-26

    Abstract: A semiconductor device includes a substrate having a fin structure, the fin structure having a height in a substantially perpendicular direction to the substrate, and having consecutive upper and lower portions along the height, the lower portion being closer to the substrate than the upper portion. The semiconductor device further includes a gate structure wrapping around a portion of the fin structure, the gate structure having a gate dielectric layer disposed around the fin structure, and a gate electrode layer disposed over the gate dielectric layer. The gate electrode layer includes a first gate metal layer formed along both sides of the lower portion of the fin structure, the first gate metal layer having a first workfunction, and a second gate metal layer formed disposed over the first gate metal layer and wrapped around the upper portion of the fin structure, the second gate metal layer having a second workfunction. The first and the second workfunctions are different.

    Abstract translation: 半导体器件包括具有翅片结构的衬底,鳍结构具有与衬底基本垂直的方向的高度,并且沿着高度具有连续的上部和下部,下部比上部更靠近衬底。 半导体器件还包括围绕鳍结构的一部分缠绕的栅极结构,栅极结构具有围绕鳍结构设置的栅介质层,以及设置在栅介电层上的栅电极层。 栅极电极层包括沿翅片结构的下部两侧形成的第一栅极金属层,第一栅极金属层具有第一功函数,第二栅极金属层形成在第一栅极金属层上并缠绕 鳍结构的上部,第二栅极金属层具有第二功函数。 第一个和第二个功能是不同的。

    Method for inducing strain in FinFET channels
    25.
    发明授权
    Method for inducing strain in FinFET channels 有权
    在FinFET通道中诱导应变的方法

    公开(公告)号:US08823060B1

    公开(公告)日:2014-09-02

    申请号:US13771249

    申请日:2013-02-20

    Abstract: FinFETs in which a swelled material within the fin, typically an oxide of the fin semiconductor, causes strain that significantly increases charge carrier mobility within the FinFET channel. The concept can be applied to either p-type or n-type FinFETs. For p-type FinFETs the swelled material is positioned underneath the source and drain regions. For n-type FinFETs the swelled material is positioned underneath the channel region. The swelled material can be used with or without strain-inducing epitaxy on the source and drain areas and can provide greater strain than is achievable by strain-inducing epitaxy alone.

    Abstract translation: 翅片内部的膨胀材料(通常为散热片半导体的氧化物)的FinFET导致在FinFET通道内显着增加电荷载流子迁移率的应变。 该概念可以应用于p型或n型FinFET。 对于p型FinFET,膨胀材料位于源极和漏极区域的下方。 对于n型FinFET,膨胀的材料位于通道区域的下方。 溶胀材料可以在源极和漏极区域具有或不具有应变诱导外延使用,并且可以提供比单独应变诱导外延可实现的更大的应变。

    Semiconductor device and manufacturing method thereof

    公开(公告)号:US11239084B2

    公开(公告)日:2022-02-01

    申请号:US16927942

    申请日:2020-07-13

    Abstract: A semiconductor device includes a fin structure disposed over a substrate, a gate structure and a source. The fin structure includes an upper layer being exposed from an isolation insulating layer. The gate structure disposed over part of the upper layer of the fin structure. The source includes the upper layer of the fin structure not covered by the gate structure. The upper layer of the fin structure of the source is covered by a crystal semiconductor layer. The crystal semiconductor layer is covered by a silicide layer formed by Si and a first metal element. The silicide layer is covered by a first metal layer. A second metal layer made of the first metal element is disposed between the first metal layer and the isolation insulating layer.

    Semiconductor device and manufacturing method thereof

    公开(公告)号:US10714349B2

    公开(公告)日:2020-07-14

    申请号:US16370521

    申请日:2019-03-29

    Abstract: A semiconductor device includes a fin structure disposed over a substrate, a gate structure and a source. The fin structure includes an upper layer being exposed from an isolation insulating layer. The gate structure disposed over part of the upper layer of the fin structure. The source includes the upper layer of the fin structure not covered by the gate structure. The upper layer of the fin structure of the source is covered by a crystal semiconductor layer. The crystal semiconductor layer is covered by a silicide layer formed by Si and a first metal element. The silicide layer is covered by a first metal layer. A second metal layer made of the first metal element is disposed between the first metal layer and the isolation insulating layer.

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