Methods to achieve strained channel finFET devices

    公开(公告)号:US10205025B2

    公开(公告)日:2019-02-12

    申请号:US15276779

    申请日:2016-09-26

    Abstract: Methods to achieve strained channel finFET devices and resulting finFET devices are presented. In an embodiment, a method for processing a field effect transistor (FET) device may include forming a fin structure comprising a fin channel on a substrate. The method may also include forming a sacrificial epitaxial layer on a side of the fin structure. Additionally, the method may include forming a deep recess in a region that includes at least a portion of the fin structure, wherein the fin structure and sacrificial layer relax to form a strain on the fin channel. The method may also include depositing source/drain (SD) material in the deep recess to preserve the strain on the fin channel.

    Horizontal nanosheet FETs and method of manufacturing the same

    公开(公告)号:US10026652B2

    公开(公告)日:2018-07-17

    申请号:US15343157

    申请日:2016-11-03

    Abstract: Multi-Vt horizontal nanosheet devices and a method of making the same. In one embodiment, an integrated circuit includes a plurality of horizontal nanosheet devices (hNS devices) on a top surface of a substrate, the plurality of hNS devices including a first hNS device and a second hNS device spaced apart from each other horizontally. Each of the hNS devices includes a first and a second horizontal nanosheets spaced apart vertically; and a gate stack between the first and second horizontal nanosheets, the gate stack including a work function metal (WFM) layer. A thickness of the first and second horizontal nanosheets of the first hNS device is different from a thickness of the first and second horizontal nanosheets of the second hNS device, and a thickness of the WFM layer of the first hNS device is different from a thickness of the WFM layer of the second hNS device.

    Integrated circuit chips having field effect transistors with different gate designs
    39.
    发明授权
    Integrated circuit chips having field effect transistors with different gate designs 有权
    具有不同栅极设计的场效应晶体管的集成电路芯片

    公开(公告)号:US09425275B2

    公开(公告)日:2016-08-23

    申请号:US14728104

    申请日:2015-06-02

    Abstract: An integrated circuit chip includes a semiconductor substrate, a first back-end-of-line unit circuit that includes a first group of field effect transistors, a second gate-loaded unit circuit that includes a second group of field effect transistors. The first group of field effect transistors includes a first transistor and the second group of field effect transistors includes a second transistor. A bottom surface of a gate electrode of the first transistor extends closer to a bottom surface of the semiconductor substrate than does a bottom surface of a gate electrode of the second transistor.

    Abstract translation: 集成电路芯片包括半导体衬底,第一后端线单元电路,其包括第一组场效应晶体管,第二栅极负载单元电路,其包括第二组场效应晶体管。 第一组场效应晶体管包括第一晶体管,第二组场效应晶体管包括第二晶体管。 与第二晶体管的栅电极的底表面相比,第一晶体管的栅电极的底表面比半导体衬底的底表面更靠近。

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