Method and apparatus for high pressure cure of flowable dielectric films

    公开(公告)号:US11189487B2

    公开(公告)日:2021-11-30

    申请号:US16330366

    申请日:2016-09-30

    Abstract: A high-pressure dielectric film curing apparatus, such as a high-pressure batch furnace, is controlled to an elevated cure temperature and super-atmospheric pressure for the duration of the film curing time with the cure pressure achieved at least partially with a vapor of aqueous ammonia in fluid communication with the chamber. The cure temperature may vary, for example between 175° C., and 400° C., or more. The cure pressure may also vary as limited by the saturated water vapor pressure, for example between 100 PSIA and 300 PSIA, or more. The aqueous ammonia may be injected into the chamber or vaporized upstream of the chamber. One or more carrier and/or diluent gas (vapor) may be introduced into the chamber to adjust the partial pressure of ammonia vapor, water vapor, and the diluent.

    Dielectric gap-fill material deposition

    公开(公告)号:US10811251B2

    公开(公告)日:2020-10-20

    申请号:US16324859

    申请日:2016-09-30

    Abstract: A flowable chemical vapor deposition method including depositing a dielectric film precursor on a substrate in a flowable form; depositing an oligomerization agent on the substrate; forming a dielectric film from the dielectric film precursor; and curing the dielectric film under a pressure greater than atmospheric pressure. A method including depositing a dielectric film precursor as a liquid on a substrate in the presence of an oligomerization agent; treating the deposited dielectric film precursor to inhibit outgassing; and curing the dielectric film precursor to form a dielectric film. A method including delivering a dielectric film precursor as a vapor to a substrate including gap structures between device features; condensing the dielectric film precursor on the substrate to a liquid; flowing the liquid into the gap structures; and curing the dielectric film precursor under a pressure of 15 pounds per square inch gauge or greater.

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