POLY RESISTOR FOR METAL GATE INTEGRATED CIRCUITS
    2.
    发明申请
    POLY RESISTOR FOR METAL GATE INTEGRATED CIRCUITS 有权
    金属门集成电路聚电阻

    公开(公告)号:US20140183658A1

    公开(公告)日:2014-07-03

    申请号:US14074831

    申请日:2013-11-08

    Inventor: Kamel BENAISSA

    Abstract: An integrated circuit containing a metal gate transistor and a thin polysilicon resistor may be formed by forming a first layer of polysilicon and removed it in an area for the thin polysilicon resistor. A second layer of polysilicon is formed over the first layer of polysilicon and in the area for the thin polysilicon resistor. The thin polysilicon resistor is formed in the second layer of polysilicon and the sacrificial gate is formed in the first layer of polysilicon and the second layer of polysilicon. A PMD layer is formed over the second layer of polysilicon and a top portion of the PMD layer is removed so as to expose the sacrificial gate but not expose the second layer of polysilicon in the thin polysilicon resistor. The sacrificial gate is removed and a metal replacement gate is formed.

    Abstract translation: 可以通过形成第一多晶硅层并将其去除在薄多晶硅电阻器的区域中来形成包含金属栅极晶体管和薄多晶硅电阻器的集成电路。 第二层多晶硅形成在多晶硅的第一层上,并在多晶硅薄膜的区域中形成。 薄多晶硅电阻器形成在第二层多晶硅中,并且牺牲栅极形成在第一多晶硅层和第二多晶硅层中。 在第二多晶硅层上形成PMD层,并且去除PMD层的顶部,以暴露牺牲栅极,但不暴露薄多晶硅电阻器中的第二层多晶硅。 去除牺牲栅极并形成金属替换栅极。

    POLY RESISTOR FOR METAL GATE INTEGRATED CIRCUITS
    3.
    发明申请
    POLY RESISTOR FOR METAL GATE INTEGRATED CIRCUITS 审中-公开
    金属门集成电路聚电阻

    公开(公告)号:US20150171077A1

    公开(公告)日:2015-06-18

    申请号:US14569932

    申请日:2014-12-15

    Inventor: Kamel BENAISSA

    Abstract: An integrated circuit containing a metal gate transistor and a thin polysilicon resistor may be formed by forming a first layer of polysilicon and removed it in an area for the thin polysilicon resistor. A second layer of polysilicon is formed over the first layer of polysilicon and in the area for the thin polysilicon resistor. The thin polysilicon resistor is formed in the second layer of polysilicon and the sacrificial gate is formed in the first layer of polysilicon and the second layer of polysilicon. A PMD layer is formed over the second layer of polysilicon and a top portion of the PMD layer is removed so as to expose the sacrificial gate but not expose the second layer of polysilicon in the thin polysilicon resistor. The sacrificial gate is removed and a metal replacement gate is formed.

    Abstract translation: 可以通过形成第一多晶硅层并将其去除在薄多晶硅电阻器的区域中来形成包含金属栅极晶体管和薄多晶硅电阻器的集成电路。 第二层多晶硅形成在多晶硅的第一层上,并在多晶硅薄膜的区域中形成。 薄多晶硅电阻器形成在第二层多晶硅中,并且牺牲栅极形成在第一多晶硅层和第二多晶硅层中。 在第二多晶硅层上形成PMD层,并且去除PMD层的顶部,以暴露牺牲栅极,但不暴露薄多晶硅电阻器中的第二层多晶硅。 去除牺牲栅极并形成金属替换栅极。

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