APPLICATION OF SELF-ASSEMBLED MONOLAYERS FOR IMPROVED VIA INTEGRATION

    公开(公告)号:US20220130721A1

    公开(公告)日:2022-04-28

    申请号:US17076870

    申请日:2020-10-22

    Abstract: Methods for fabricating an IC structure by applying self-assembled monolayers (SAMs) are disclosed. An example IC structure includes a stack of three metallization layers provided over a support structure, where the first metallization layer includes a bottom metal line, the third metallization layer includes a top metal line, and the second metallization layer includes a via coupled between the bottom metal line and the top metal line, where via's sidewalls are enclosed by a first dielectric material. Application of one or more SAMs results in at least a portion of the via's sidewalls being lined with a second dielectric material so that the second dielectric material is between the first dielectric material and an electrically conductive material of the via, where the dielectric constant of the second dielectric material is higher than that of the first dielectric material and lower than about 6.

    CAP STRUCTURE FOR INTERCONNECT DIELECTRICS AND METHODS OF FABRICATION

    公开(公告)号:US20220199544A1

    公开(公告)日:2022-06-23

    申请号:US17125680

    申请日:2020-12-17

    Abstract: An integrated circuit structure includes a first interconnect level including a first dielectric between a pair of interconnect structures, a second interconnect level above the first interconnect level. The second interconnect level includes a cap structure including a second dielectric on the first dielectric, the cap structure includes a top surface and a sidewall surface and a liner comprising a third dielectric on the top surface and on the sidewall surface.

Patent Agency Ranking