Method of manufacturing semiconductor device

    公开(公告)号:US11355349B2

    公开(公告)日:2022-06-07

    申请号:US17032356

    申请日:2020-09-25

    Abstract: A method includes forming hard mask patterns by depositing a support mask layer, a polycrystalline silicon layer, and a hard mask layer on a substrate and etching the hard mask layer, forming pre-polycrystalline silicon patterns by etching the polycrystalline silicon layer using the hard mask patterns as an etch mask, oxidizing side surfaces of the pre-polycrystalline silicon patterns to form polycrystalline silicon patterns and a silicon oxide layer, forming spacer patterns covering sides of the silicon oxide layer, forming a sacrificial layer on a top surface of the support mask layer to cover the silicon oxide layer and the spacer patterns, etching the sacrificial layer and the silicon oxide layer, forming support mask patterns by etching the support mask layer using the polycrystalline silicon patterns and the spacer patterns as an etch mask, and forming activation pins by etching the substrate using the support mask patterns as an etch mask.

    FAN-OUT SEMICONDUCTOR PACKAGE
    2.
    发明申请

    公开(公告)号:US20200035632A1

    公开(公告)日:2020-01-30

    申请号:US16351784

    申请日:2019-03-13

    Inventor: Bong Soo Kim

    Abstract: A fan-out semiconductor package includes: a frame including first to third insulating layers, a first wiring layer disposed on a first surface of the first insulating layer and embedded in the second insulating layer, and a second wiring layer disposed on the third insulating layer, and having a through-hole penetrating through the first to third insulating layers; a semiconductor chip disposed in the through-hole and having an active surface on which connection pads are disposed and an inactive surface opposing the active surface; an encapsulant covering at least portions of each of the frame and the semiconductor chip and filling at least portions of the through-hole; and a connection structure disposed on the frame and the active surface of the semiconductor chip and including redistribution layers electrically connected to the connection pads. The first and second wiring layers are electrically connected to the connection pads.

    Fan-out semiconductor package
    3.
    发明授权

    公开(公告)号:US10886246B2

    公开(公告)日:2021-01-05

    申请号:US16351784

    申请日:2019-03-13

    Inventor: Bong Soo Kim

    Abstract: A fan-out semiconductor package includes: a frame including first to third insulating layers, a first wiring layer disposed on a first surface of the first insulating layer and embedded in the second insulating layer, and a second wiring layer disposed on the third insulating layer, and having a through-hole penetrating through the first to third insulating layers; a semiconductor chip disposed in the through-hole and having an active surface on which connection pads are disposed and an inactive surface opposing the active surface; an encapsulant covering at least portions of each of the frame and the semiconductor chip and filling at least portions of the through-hole; and a connection structure disposed on the frame and the active surface of the semiconductor chip and including redistribution layers electrically connected to the connection pads. The first and second wiring layers are electrically connected to the connection pads.

    Semiconductor devices
    6.
    发明授权

    公开(公告)号:US11239363B2

    公开(公告)日:2022-02-01

    申请号:US16598012

    申请日:2019-10-10

    Abstract: A semiconductor device including an active region extending in a first direction on a substrate; a gate structure intersecting the active region and extending in a second direction on the substrate; and a source/drain region on the active region and at least one side of the gate structure, wherein the source/drain region includes a plurality of first epitaxial layers spaced apart from each other in the first direction, the plurality of first epitaxial layers including first impurities of a first conductivity type; and a second epitaxial layer filling a space between the plurality of first epitaxial layers, the second epitaxial layer including second impurities of the first conductivity type.

    METHOD OF FORMING SEMICONDUCTOR DEVICE
    7.
    发明申请

    公开(公告)号:US20200152462A1

    公开(公告)日:2020-05-14

    申请号:US16530286

    申请日:2019-08-02

    Abstract: A method of forming a semiconductor device includes forming first sacrificial patterns on a lower structure, forming first remaining mask layers having a “U” shape between the first sacrificial patterns to be in contact with the first sacrificial patterns, forming first remaining mask patterns by pattering the first remaining mask layers, each of the first remaining mask patterns including a horizontal portion, parallel to an upper surface of the lower structure, and a vertical portion, perpendicular to the upper surface of the lower structure, forming second mask patterns spaced apart from the vertical portions of the first remaining mask patterns, removing the first sacrificial patterns remaining after forming the second mask patterns, and forming first mask patterns by etching the horizontal portions of the first remaining mask patterns.

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