INTEGRATED CIRCUIT DEVICE AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20220367336A1

    公开(公告)日:2022-11-17

    申请号:US17515954

    申请日:2021-11-01

    Abstract: An integrated circuit (IC) device includes a first conductive line in a closed curve defining a local area on a substrate. The first conductive line has a first end portion and a second end portion. A second conductive line is outside the local area. The second conductive line has a linear line portion along the closed curve and a bulging end portion along the closed curve. The bulging end portion protrudes from the linear line portion toward the first end portion of the first conductive line in the second lateral direction and protrudes further than the first end portion to the outside of the local area. A method of manufacturing an IC device includes forming a first reference pattern having a mandrel hole. A reference spacer is formed inside the mandrel hole. A second reference pattern is formed. The second reference pattern has a shift hole.

    INTEGRATED CIRCUIT DEVICE AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20240234312A1

    公开(公告)日:2024-07-11

    申请号:US18615177

    申请日:2024-03-25

    CPC classification number: H01L23/528 H01L21/31144 H01L21/76802 H01L21/76877

    Abstract: An integrated circuit (IC) device includes a first conductive line in a closed curve defining a local area on a substrate. The first conductive line has a first end portion and a second end portion. A second conductive line is outside the local area. The second conductive line has a linear line portion along the closed curve and a bulging end portion along the closed curve. The bulging end portion protrudes from the linear line portion toward the first end portion of the first conductive line in the second lateral direction and protrudes further than the first end portion to the outside of the local area. A method of manufacturing an IC device includes forming a first reference pattern having a mandrel hole. A reference spacer is formed inside the mandrel hole. A second reference pattern is formed. The second reference pattern has a shift hole.

    SEMI-DAMASCENE STRUCTURE WITH DIELECTRIC HARDMASK LAYER

    公开(公告)号:US20220375785A1

    公开(公告)日:2022-11-24

    申请号:US17390035

    申请日:2021-07-30

    Abstract: A a method of manufacturing a semi-damascene structure of a semiconductor device includes: forming a 1st intermetal dielectric layer; forming a 1st hardmask layer and at least one 1st photoresist pattern on the 1st intermetal dielectric layer; patterning at least one via hole penetrating through the 1st hardmask layer and the 1st intermetal dielectric using the 1st photoresist pattern; removing the 1st photoresist pattern among the 1st photoresist pattern and the 1st hardmask layer; forming a metal structure in the via hole such that the metal structure fills in the vial hole and extends on the 1st hardmask layer; patterning the metal structure to form at least one 1st trench penetrating at least the metal structure at a portion where the metal structure extends on the 1st hardmask layer; and filling the 1st trench with a 2nd inter-metal layer.

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