COBALT CHEMISTRY FOR SMOOTH TOPOLOGY

    公开(公告)号:US20210180200A1

    公开(公告)日:2021-06-17

    申请号:US16713871

    申请日:2019-12-13

    Abstract: An electroplated cobalt deposit and a method of electrodepositing cobalt on a surface to produce a level deposit across the surface of the substrate. The cobalt electrolyte contains (1) a source of cobalt ions; (2) boric acid; (3) a pH adjuster; and (4) an organic additive, which contains a suppressor. The electroplated cobalt deposit exhibits a level surface such that the thickness difference across substantially the entire surface of the substrate of less than about 200 nm.

    Cobalt filling of interconnects in microelectronics

    公开(公告)号:US10995417B2

    公开(公告)日:2021-05-04

    申请号:US15739314

    申请日:2016-06-30

    Abstract: Processes and compositions for electroplating a cobalt deposit onto a semiconductor base structure comprising submicron-sized electrical interconnect features. In the process, a metalizing substrate within the interconnect features is contacted with an electrodeposition composition comprising a source of cobalt ions, an accelerator comprising an organic sulfur compound, an acetylenic suppressor, a buffering agent and water. Electrical current is supplied to the electrolytic composition to deposit cobalt onto the base structure and fill the submicron-sized features with cobalt. The process is effective for superfilling the interconnect features.

    Flexible color adjustment for dark Cr(III) platings

    公开(公告)号:US10544516B2

    公开(公告)日:2020-01-28

    申请号:US15762599

    申请日:2016-09-23

    Abstract: The invention relates to a method for the adjustment of the lightness L* of electrolytically deposited chromium-finishes on workpieces obtained by an electroplating bath comprising at least chromium(III)-ions and sulfur containing organic compounds, wherein the concentration of the sulfur containing organic compounds in the bath are adjusted by passing at least part of the bath composition through an activated carbon filter. Furthermore, the invention is directed to dark chrome coatings comprising a defined concentration gradient of deposited sulfur containing organic compounds.

    Compositions including a high molecular weight acid suitable for conductive polymer formation on dielectric substrate

    公开(公告)号:US10508207B2

    公开(公告)日:2019-12-17

    申请号:US15545208

    申请日:2016-01-20

    Abstract: The invention relates to a composition and a process for the deposition of conductive polymers on dielectric substrates. In particular, the invention relates to a composition for the formation of electrically conductive polymers on the surface of a dielectric substrate, the composition comprising at least one polymerizable monomer which is capable to form a conductive polymer, an emulsifier and an acid, characterized in that the composition comprises at least one metal-ion selected from the group consisting of lithium-ions, sodium-ions, aluminum-ions, beryllium-ions, bismuth-ions, boron-ions, indium-ions and alkyl imidazolium-ions. The acid is typically a high molecular weight polymeric acid having molecular weight of at least 500,000 Da including, for example, polystyrene sulfonic acid having a molecular weight of approximately 1,000,000 Da.

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