Uniform gate height for semiconductor structure with N and P type fins
    4.
    发明授权
    Uniform gate height for semiconductor structure with N and P type fins 有权
    具有N型和P型翅片的半导体结构的均匀栅极高度

    公开(公告)号:US08987083B1

    公开(公告)日:2015-03-24

    申请号:US14202985

    申请日:2014-03-10

    Abstract: In a non-planar based semiconductor process where the structure includes both N and P type raised structures (e.g., fins), and where a different type of epitaxy is to be grown on each of the N and P type raised structures, prior to the growing, a lithographic blocking material over one of the N and P type raised structure portions is selectively etched to expose and planarize a gate cap. After the first type of epitaxy is grown, the process is repeated for the other of the N and P type epitaxy.

    Abstract translation: 在非平面型半导体工艺中,其结构包括N型和P型凸起结构(例如翅片),并且其中不同类型的外延将在N型和P型凸起结构中的每一种上生长,在 选择性地蚀刻在N型和P型凸起结构部分之上的平版印刷阻挡材料以暴露和平坦化栅极盖。 在第一种类型的外延生长之后,对于N和P型外延中的另一种重复该过程。

    Method to reduce FinFET short channel gate height

    公开(公告)号:US10043713B1

    公开(公告)日:2018-08-07

    申请号:US15591814

    申请日:2017-05-10

    Abstract: Methods of reducing the SC GH on a FinFET device while protecting the LC devices and the resulting devices are provided. Embodiments include forming an ILD over a substrate of a FinFET device, the ILD having a SC region and a LC region; forming a SC gate and a LC gate within the SC and LC regions, respectively, an upper surface of the SC and LC gates being substantially coplanar with an upper surface of the ILD; forming a lithography stack over the LC region; recessing the SC gate; stripping the lithography stack; forming a SiN cap layer over the SC and LC regions; forming a TEOS layer over the SiN cap layer; and planarizing the TEOS layer.

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