POLISHING COMPOSITIONS AND METHODS OF USE THEREOF

    公开(公告)号:US20210253904A1

    公开(公告)日:2021-08-19

    申请号:US17169685

    申请日:2021-02-08

    IPC分类号: C09G1/02 B24B37/04

    摘要: A polishing composition, includes an abrasive; a pH adjuster; a barrier film removal rate enhancer; a low-k removal rate inhibitor; an azole-containing corrosion inhibitor; and a ruthenium removal rate enhancer. A method of polishing a substrate includes the steps of: applying the polishing composition described herein to a surface of a substrate, wherein the surface comprises ruthenium or a hard mask material; and bringing a pad into contact with the surface of the substrate and moving the pad in relation to the substrate.

    Bulk ruthenium chemical mechanical polishing composition

    公开(公告)号:US11279850B2

    公开(公告)日:2022-03-22

    申请号:US16299935

    申请日:2019-03-12

    摘要: The compositions of the present disclosure polish surfaces or substrates that at least partially include ruthenium. The composition includes a synergistic combination of ammonia and oxygenated halogen compound. The composition may further include abrasive and acid(s). A polishing composition for use on ruthenium materials may include ammonia, present in an amount of 0.01 wt % to 10 wt %, based on the total weight of the composition; hydrogen periodate, present in an amount of 0.01 wt % to 10 wt %, based on the total weight of the composition; silica, present in an amount of 0.01 wt % to 12 wt %, based on the total weight of the composition; and organic sulfonic add, present in an amount of 0.01 wt % to 10 wt %, based on the total weight of the composition, wherein the pH of the composition is between 6 and 8.