Low temperature low-abundance atomic object dispenser

    公开(公告)号:US12002597B2

    公开(公告)日:2024-06-04

    申请号:US17444220

    申请日:2021-08-02

    申请人: Quantinuum LLC

    摘要: Methods and dispensers for dispensing atomic objects are provided. An example method for dispensing atomic objects includes sealing a reaction component at least partially coated with a composition comprising the atomic objects inside an oven; and, with the oven disposed within a pressure-controlled chamber, heating the composition to an atomizing reaction temperature to cause an atomizing chemical reaction to occur. The reaction component comprises a material that is a participant in the reaction. A result of the reaction is elemental atomic objects deposited on a depositing surface within the oven. The atomizing reaction temperature is greater than a dispensing threshold temperature. The method further comprises allowing the oven to cool below the dispensing threshold temperature; and heating the oven to a dispensing temperature to cause the elemental atomic objects to be dispensed from the oven through a dispensing aperture. The dispensing temperature does not exceed the dispensing threshold temperature.

    METHODS OF REMOVING METAL OXIDE USING CLEANING PLASMA

    公开(公告)号:US20240167148A1

    公开(公告)日:2024-05-23

    申请号:US17989767

    申请日:2022-11-18

    IPC分类号: C23C16/02 B08B7/00 C23C16/06

    摘要: Embodiments of the disclosure are directed to methods of removing metal oxide from a substrate surface by exposing the substrate surface to an un-biased cleaning plasma comprising a mixture of hydrogen (H2) and oxygen (O2). In some embodiments, the substrate surface has at least one feature thereon, the at least one feature defining a trench having a top surface, a bottom surface, and two opposed sidewalls. The un-biased cleaning plasma comprises in a range of from 1% to 20% oxygen (O2) on a molecular basis and greater than or equal to 80% hydrogen (H2). The un-biased cleaning plasma removes substantially all of the metal oxide—such as molybdenum oxide (MoOx), ruthenium oxide (RuOx), or tungsten oxide (WOx)—from the substrate surface, and the top surface, the bottom surface, and the two opposed sidewalls of the trench without damaging the dielectric and/or critical dimension (CD)/profile of the structure.