Method for manufacturing a semiconductor device

    公开(公告)号:US11551925B2

    公开(公告)日:2023-01-10

    申请号:US16828885

    申请日:2020-03-24

    Abstract: A substrate processing method with an improved etch selectivity includes: a first operation for forming a film on a stepped structure having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, wherein a first atmosphere is set to reduce a mean free path of plasma ions and to cause the plasma ions to have no directionality; and a second operation for changing a bonding structure of a portion of the film, wherein a second atmosphere is set to cause the plasma ions to have directionality, wherein the first operation is repeated a plurality of times, the second operation is performed for a predetermined time period, the first operation and the second operation form a group cycle, and the group cycle is repeated by a plurality of times.

    METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE

    公开(公告)号:US20200312652A1

    公开(公告)日:2020-10-01

    申请号:US16828885

    申请日:2020-03-24

    Abstract: A substrate processing method with an improved etch selectivity includes: a first operation for forming a film on a stepped structure having a top surface, a bottom surface, and a side surface connecting the top surface and the bottom surface, wherein a first atmosphere is set to reduce a mean free path of plasma ions and to cause the plasma ions to have no directionality; and a second operation for changing a bonding structure of a portion of the film, wherein a second atmosphere is set to cause the plasma ions to have directionality, wherein the first operation is repeated a plurality of times, the second operation is performed for a predetermined time period, the first operation and the second operation form a group cycle, and the group cycle is repeated by a plurality of times.

    Substrate processing method
    4.
    发明授权

    公开(公告)号:US11562901B2

    公开(公告)日:2023-01-24

    申请号:US17023129

    申请日:2020-09-16

    Abstract: A substrate processing method capable of achieving uniform etch selectivity in the entire thickness range of a thin film formed on a stepped structure includes: forming a thin film on a substrate by performing a plurality of cycles including forming at least one layer and applying plasma to the at least one layer under a first process condition; and applying plasma to the thin film under a second process condition different from the first process condition.

    SEMICONDUCTOR PROCESSING METHOD
    5.
    发明申请

    公开(公告)号:US20220310387A1

    公开(公告)日:2022-09-29

    申请号:US17701433

    申请日:2022-03-22

    Abstract: A substrate processing method of forming an air gap includes: forming deposition inhibitor sites in a lower space between a first protrusion and a second protrusion; and forming film-forming sites and an interlayer insulating layer on the first protrusion and the second protrusion, wherein the interlayer insulating layer is selectively formed in an upper space between the first protrusion and the second protrusion by the deposition inhibitor sites and the film-forming layer, and thus an air gap is formed between the first protrusion and the second protrusion.

    SUBSTRATE PROCESSING METHOD
    7.
    发明申请

    公开(公告)号:US20220415650A1

    公开(公告)日:2022-12-29

    申请号:US17847531

    申请日:2022-06-23

    Abstract: Provided is a substrate processing method capable of filling a film in a gap structure without forming voids or seams in a gap, the substrate processing method including: a first step of forming a thin film on a structure including a gap by performing a first cycle including supplying a first reaction gas and supplying a second reaction gas to the structure a plurality of times; a second step of etching a portion of the thin film by supplying a fluorine-containing gas onto the thin film; a third step of supplying a hydrogen-containing gas onto the thin film; a fourth step of supplying an inhibiting gas to an upper portion of the gap; and a fifth step of forming a thin film by performing a second cycle including supplying the first reaction gas and supplying a second reaction gas onto the thin film a plurality of times.

    SUBSTRATE PROCESSING METHOD
    8.
    发明申请

    公开(公告)号:US20210090878A1

    公开(公告)日:2021-03-25

    申请号:US17023129

    申请日:2020-09-16

    Abstract: A substrate processing method capable of achieving uniform etch selectivity in the entire thickness range of a thin film formed on a stepped structure includes: forming a thin film on a substrate by performing a plurality of cycles including forming at least one layer and applying plasma to the at least one layer under a first process condition; and applying plasma to the thin film under a second process condition different from the first process condition.

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