HORIZONTAL GATE ALL AROUND DEVICE NANOWIRE AIR GAP SPACER FORMATION

    公开(公告)号:US20170309719A1

    公开(公告)日:2017-10-26

    申请号:US15494981

    申请日:2017-04-24

    Abstract: The present disclosure provides an apparatus and methods for forming nanowire structures with desired materials horizontal gate-all-around (hGAA) structures field effect transistor (FET) for semiconductor chips. In one example, a method of forming nanowire structures includes depositing a dielectric material on a first side and a second side of a stack. The stack may include repeating pairs of a first layer and a second layer. The first side is opposite the second side and the first side and the second side have one or more recesses formed therein. The method includes removing the dielectric material from the first side and the second side of the stack. The dielectric material remains in the one or more recesses. The method includes the deposition of a stressor layer and the formation of one or more side gaps between the stressor layer and the first side and the second side of the stack.

    HORIZONTAL GATE-ALL-AROUND DEVICE NANOWIRE AIR GAP SPACER FORMATION

    公开(公告)号:US20220173220A1

    公开(公告)日:2022-06-02

    申请号:US17672788

    申请日:2022-02-16

    Abstract: Embodiments provide methods for forming nanowire structures, such as, for example, horizontal gate-all-around (hGAA) structures. In one embodiment, a method includes selectively etching material from a stack disposed on a material layer located on a substrate with a plasma to create recesses on each of first and second sides of the stack and depositing a dielectric material on the first and second sides. The stack includes repeating pairs of first and second layers. The method also includes removing the dielectric material from the first and second sides, where the dielectric material remains in the recesses of the first and second sides, and selectively depositing a stressor layer on regions of the first and second sides which are unprotected by the dielectric material to form gaps between the stressor layer and the dielectric material remaining in the recesses of the first and second sides.

    METHODS FOR PATTERNING A HARDMASK LAYER FOR AN ION IMPLANTATION PROCESS
    6.
    发明申请
    METHODS FOR PATTERNING A HARDMASK LAYER FOR AN ION IMPLANTATION PROCESS 审中-公开
    用于绘制离子植入过程的HARDMASK层的方法

    公开(公告)号:US20150118832A1

    公开(公告)日:2015-04-30

    申请号:US14062638

    申请日:2013-10-24

    Abstract: Embodiments of the present invention provide a methods for patterning a hardmask layer with good process control for an ion implantation process, particularly suitable for manufacturing the fin field effect transistor (FinFET) for semiconductor chips. In one embodiment, a method of patterning a hardmask layer disposed on a substrate includes forming a planarization layer over a hardmask layer disposed on a substrate, disposing a patterned photoresist layer over the planarization layer, patterning the planarization layer and the hardmask layer uncovered by the patterned photoresist layer in a processing chamber, exposing a first portion of the underlying substrate, and removing the planarization layer from the substrate.

    Abstract translation: 本发明的实施例提供了一种用于对具有用于离子注入工艺的良好工艺控制的硬掩模层图案化的方法,特别适用于制造用于半导体芯片的鳍式场效应晶体管(FinFET)。 在一个实施例中,图案化设置在衬底上的硬掩模层的方法包括在设置在衬底上的硬掩模层上形成平坦化层,在平坦化层上设置图案化的光致抗蚀剂层,将平坦化层和硬掩模层图案化, 在处理室中的图案化光致抗蚀剂层,暴露下面的衬底的第一部分,以及从衬底去除平坦化层。

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