OXHALIDE PRECURSORS
    25.
    发明公开
    OXHALIDE PRECURSORS 审中-公开

    公开(公告)号:US20240140819A1

    公开(公告)日:2024-05-02

    申请号:US18404334

    申请日:2024-01-04

    Applicant: ENTEGRIS, INC.

    CPC classification number: C01G39/04 C01G41/04 C01P2002/72

    Abstract: The invention provides a process for preparing molybdenum and tungsten oxyhalide compounds which are useful in the deposition of molybdenum and tungsten containing films on various surfaces of microelectronic devices. In the process of the invention, a molybdenum or tungsten trioxide is heated in either a solid state medium or in a melt-phase reaction comprising a eutectic blend comprising alkaline and/or alkaline earth metal salts. The molybdenum or tungsten oxyhalides thus formed may be isolated as a vapor and crystallized to provide highly pure precursor compounds such as MoO2Cl2.

    VAPOR DEPOSITION PRECURSOR COMPOUNDS AND PROCESS OF USE

    公开(公告)号:US20230041086A1

    公开(公告)日:2023-02-09

    申请号:US17901569

    申请日:2022-09-01

    Applicant: ENTEGRIS, INC.

    Abstract: Provided is a plasma enhanced atomic layer deposition (PEALD) process for depositing etch-resistant SiOCN films. These films provide improved growth rate, improved step coverage and excellent etch resistance to wet etchants and post-deposition plasma treatments containing O2 and NH3 co-reactants. This PEALD process relies on one or more precursors reacting in tandem with the plasma exposure to deposit the etch-resistant thin-films of SiOCN. The films display excellent resistance to wet etching with dilute aqueous HF solutions, both after deposition and after post-deposition plasma treatment(s). Accordingly, these films are expected to display excellent stability towards post-deposition fabrication steps utilized during device manufacturing and build.

    CHEMICAL VAPOR DEPOSITION PROCESSES USING RUTHENIUM PRECURSOR AND REDUCING GAS

    公开(公告)号:US20220267895A1

    公开(公告)日:2022-08-25

    申请号:US17744240

    申请日:2022-05-13

    Applicant: ENTEGRIS, INC.

    Abstract: Chemical vapor deposition (CVD) processes which use a ruthenium precursor of formula R1R2Ru(0), wherein R1 is an aryl group-containing ligand, and R2 is a diene group-containing ligand and a reducing gas a described. The CVD can include oxygen after an initial deposition period using the ruthenium precursor and reducing gas. The method can provide selective Ru deposition on conductive materials while minimizing deposition on non-conductive or less conductive materials. Further, the subsequent use of oxygen can significantly improve deposition rate while minimizing or eliminating oxidative damage of the substrate material. The method can be used to form Ru-containing layers on integrated circuits and other microelectronic devices.

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