FinFET device including silicon oxycarbon isolation structure
    15.
    发明授权
    FinFET device including silicon oxycarbon isolation structure 有权
    FinFET器件包括硅氧烷隔离结构

    公开(公告)号:US09589829B1

    公开(公告)日:2017-03-07

    申请号:US14982872

    申请日:2015-12-29

    Abstract: A method includes forming a plurality of fins on a semiconductor substrate by defining a plurality of trenches in the substrate. A first insulating material layer comprising silicon, oxygen and carbon is formed in the trenches between the plurality of fins. The first insulating material layer has an upper surface that is at a level that is below an upper surface of the fins. A second insulating material layer is formed above the first insulating material layer. The second insulating material layer is planarized to expose a top surface of the plurality of fins. The second insulating material layer is removed to expose the first insulating material layer.

    Abstract translation: 一种方法包括通过在衬底中限定多个沟槽,在半导体衬底上形成多个翅片。 在多个翅片之间的沟槽中形成包括硅,氧和碳的第一绝缘材料层。 第一绝缘材料层的上表面位于翅片上表面的下方。 第二绝缘材料层形成在第一绝缘材料层的上方。 第二绝缘材料层被平坦化以暴露多个翅片的顶表面。 去除第二绝缘材料层以露出第一绝缘材料层。

    Devices and methods of forming SADP on SRAM and SAQP on logic

    公开(公告)号:US09761452B1

    公开(公告)日:2017-09-12

    申请号:US15205528

    申请日:2016-07-08

    CPC classification number: H01L27/1116 H01L21/3086 H01L27/1104 H01L28/00

    Abstract: Devices and methods of fabricating integrated circuit devices with reduced cell height are provided. One method includes, for instance: obtaining an intermediate semiconductor device having a substrate including a logic area and an SRAM area, a fin material layer, and a hardmask layer; depositing a mandrel over the logic area; depositing a sacrificial spacer layer; etching the sacrificial spacer layer to define a sacrificial set of vertical spacers; etching the hardmask layer; leaving a set of vertical hardmask spacers; depositing a first spacer layer; etching the first spacer layer to define a first set of vertical spacers over the logic area; depositing an SOH layer; etching an opening in the SOH layer over the SRAM area; depositing a second spacer layer; and etching the second spacer layer to define a second set of spacers over the SRAM area.

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