Structure and formation method of semiconductor device with metal gate stacks

    公开(公告)号:US10461171B2

    公开(公告)日:2019-10-29

    申请号:US15965183

    申请日:2018-04-27

    Abstract: A method for forming a semiconductor device structure includes forming a first dummy gate stack and a second dummy gate stack over a semiconductor substrate and forming a dielectric layer over the semiconductor substrate to surround the first dummy gate stack and the second dummy gate stack. The method includes removing the first dummy gate stack and the second dummy gate stack to form a first trench and a second trench in the dielectric layer and removing the first dummy gate stack and the second dummy gate stack to form a first trench and a second trench in the dielectric layer. The method includes partially removing the first metal gate stack, the second metal gate stack, and the dielectric layer to form a recess. The method includes forming an insulating structure to partially or completely fill the recess.

    Gate dielectric preserving gate cut process

    公开(公告)号:US11145536B2

    公开(公告)日:2021-10-12

    申请号:US16709291

    申请日:2019-12-10

    Abstract: Gate cutting techniques for integrated circuit devices, particularly for fin-like field effect transistor devices, are disclosed herein. An exemplary method includes receiving an integrated circuit device that includes a gate structure and performing a gate cut process to separate the gate structure into a first gate structure and a second gate structure. The gate cut process includes selectively removing a portion of the gate structure, such that a residual gate dielectric layer extends between the first gate structure and the second gate structure. In some implementations, the residual gate dielectric includes a high-k dielectric material. The method further includes forming a gate isolation region between the first gate structure and the second gate structure.

    Gate Dielectric Preserving Gate Cut Process
    5.
    发明申请

    公开(公告)号:US20200328106A1

    公开(公告)日:2020-10-15

    申请号:US16912533

    申请日:2020-06-25

    Abstract: Gate cutting techniques for integrated circuit devices, particularly for fin-like field effect transistor devices, are disclosed herein. An exemplary method includes receiving an integrated circuit device that includes a gate structure and performing a gate cut process to separate the gate structure into a first gate structure and a second gate structure. The gate cut process includes selectively removing a portion of the gate structure, such that a residual gate dielectric layer extends between the first gate structure and the second gate structure. In some implementations, the residual gate dielectric includes a high-k dielectric material. The method further includes forming a gate isolation region between the first gate structure and the second gate structure.

    Gate dielectric preserving gate cut process

    公开(公告)号:US11152250B2

    公开(公告)日:2021-10-19

    申请号:US16912533

    申请日:2020-06-25

    Abstract: Gate cutting techniques for integrated circuit devices, particularly for fin-like field effect transistor devices, are disclosed herein. An exemplary method includes receiving an integrated circuit device that includes a gate structure and performing a gate cut process to separate the gate structure into a first gate structure and a second gate structure. The gate cut process includes selectively removing a portion of the gate structure, such that a residual gate dielectric layer extends between the first gate structure and the second gate structure. In some implementations, the residual gate dielectric includes a high-k dielectric material. The method further includes forming a gate isolation region between the first gate structure and the second gate structure.

    Gate dielectric preserving gate cut process

    公开(公告)号:US10699940B2

    公开(公告)日:2020-06-30

    申请号:US15963297

    申请日:2018-04-26

    Abstract: Gate cutting techniques for integrated circuit devices, particularly for fin-like field effect transistor devices, are disclosed herein. An exemplary method includes receiving an integrated circuit device that includes a gate structure and performing a gate cut process to separate the gate structure into a first gate structure and a second gate structure. The gate cut process includes selectively removing a portion of the gate structure, such that a residual gate dielectric layer extends between the first gate structure and the second gate structure. In some implementations, the residual gate dielectric includes a high-k dielectric material. The method further includes forming a gate isolation region between the first gate structure and the second gate structure.

    Gate Dielectric Preserving Gate Cut Process
    8.
    发明申请

    公开(公告)号:US20190157135A1

    公开(公告)日:2019-05-23

    申请号:US15963297

    申请日:2018-04-26

    Abstract: Gate cutting techniques for integrated circuit devices, particularly for fin-like field effect transistor devices, are disclosed herein. An exemplary method includes receiving an integrated circuit device that includes a gate structure and performing a gate cut process to separate the gate structure into a first gate structure and a second gate structure. The gate cut process includes selectively removing a portion of the gate structure, such that a residual gate dielectric layer extends between the first gate structure and the second gate structure. In some implementations, the residual gate dielectric includes a high-k dielectric material. The method further includes forming a gate isolation region between the first gate structure and the second gate structure.

    Gate Dielectric Preserving Gate Cut Process

    公开(公告)号:US20220037196A1

    公开(公告)日:2022-02-03

    申请号:US17501818

    申请日:2021-10-14

    Abstract: Gate cutting techniques for integrated circuit devices, particularly for fin-like field effect transistor devices, are disclosed herein. An exemplary method includes receiving an integrated circuit device that includes a gate structure and performing a gate cut process to separate the gate structure into a first gate structure and a second gate structure. The gate cut process includes selectively removing a portion of the gate structure, such that a residual gate dielectric layer extends between the first gate structure and the second gate structure. In some implementations, the residual gate dielectric includes a high-k dielectric material. The method further includes forming a gate isolation region between the first gate structure and the second gate structure.

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