SUBTRACTIVE PLASMA ETCHING OF A BLANKET LAYER OF METAL OR METAL ALLOY
    11.
    发明申请
    SUBTRACTIVE PLASMA ETCHING OF A BLANKET LAYER OF METAL OR METAL ALLOY 有权
    金属或金属合金的空隙层的等效等离子体蚀刻

    公开(公告)号:US20140273437A1

    公开(公告)日:2014-09-18

    申请号:US13838763

    申请日:2013-03-15

    Abstract: A method of forming at least one metal or metal alloy feature in an integrated circuit is provided. In one embodiment, the method includes providing a material stack including at least an etch mask located on a blanker layer of metal or metal alloy. Exposed portions of the blanket layer of metal or metal alloy that are not protected by the etch mask are removed utilizing an etch comprising a plasma that forms a polymeric compound and/or complex which protects a portion of the blanket layer of metal or metal alloy located directly beneath the etch mask during the etch.

    Abstract translation: 提供了一种在集成电路中形成至少一种金属或金属合金特征的方法。 在一个实施例中,该方法包括提供材料堆叠,其至少包括位于金属或金属合金的擦除层上的蚀刻掩模。 使用不含蚀刻掩模保护的金属或金属合金的覆盖层的暴露部分使用包含等离子体的蚀刻来去除,所述等离子体形成聚合物和/或复合物,所述复合物和/或复合物保护位于金属或金属合金的橡皮布层的一部分 在蚀刻期间直接在蚀刻掩模下面。

    Method for removing native oxide and residue from a III-V group containing surface

    公开(公告)号:US10438796B2

    公开(公告)日:2019-10-08

    申请号:US15496420

    申请日:2017-04-25

    Inventor: Chun Yan Xinyu Bao

    Abstract: Native oxides and residue are removed from surfaces of a substrate by performing a multiple-stage native oxide cleaning process. In one example, the method for removing native oxides from a substrate includes supplying a first gas mixture including an inert gas onto a surface of a material layer disposed on a substrate into a first processing chamber, wherein the material layer is a III-V group containing layer for a first period of time, supplying a second gas mixture including an inert gas and a hydrogen containing gas onto the surface of the material layer for a second period of time, and supplying a third gas mixture including a hydrogen containing gas to the surface of the material layer while maintaining the substrate at a temperature less than 550 degrees Celsius.

    UV radiation system and method for arsenic outgassing control in sub 7nm CMOS fabrication

    公开(公告)号:US10332739B2

    公开(公告)日:2019-06-25

    申请号:US15417466

    申请日:2017-01-27

    Abstract: Implementations disclosed herein relate to methods for controlling substrate outgassing of hazardous gasses after an epitaxial process. In one implementation, the method includes providing a substrate comprising an epitaxial layer into a transfer chamber, wherein the transfer chamber has an ultraviolet (UV) lamp module disposed adjacent to a top ceiling of the transfer chamber, flowing an oxygen-containing gas into the transfer chamber through a gas line of the transfer chamber, flowing a non-reactive gas into the transfer chamber through the gas line of the transfer chamber, activating the UV lamp module to oxidize residues or species on a surface of the substrate to form an outgassing barrier layer on the surface of the substrate, ceasing the flow of the oxygen-containing gas and the nitrogen-containing gas into the transfer chamber, pumping the transfer chamber, and deactivating the UV lamp module.

    Self-aligned process for sub-10nm fin formation

    公开(公告)号:US10224421B2

    公开(公告)日:2019-03-05

    申请号:US15933072

    申请日:2018-03-22

    Abstract: Methods of sub-10 nm fin formation are disclosed. One method includes patterning a first dielectric layer on a substrate to form one or more projections and a first plurality of spaces, and depositing a first plurality of columns in the first plurality of spaces. The first plurality of columns are separated by a second plurality of spaces. The method also includes depositing a second dielectric layer in the second plurality of spaces to form a plurality of dummy fins, removing the first plurality of columns to form a third plurality of spaces, depositing a second plurality of columns in the third plurality of spaces, removing the one or more projections and the plurality of dummy fins to form a fourth plurality of spaces, and depositing a plurality of fins in the fourth plurality of spaces. The plurality of fins have a width between 5-10 nm.

    Method for conditioning a processing chamber for steady etching rate control

    公开(公告)号:US10177017B1

    公开(公告)日:2019-01-08

    申请号:US15641963

    申请日:2017-07-05

    Inventor: Chun Yan

    Abstract: Embodiments of the present disclosure provide methods for conditioning a plasma processing chamber to maintain a reliable and predicable processing conditions while performing a oxide removal process on a substrate. In one embodiment, a method for conditioning a plasma processing chamber includes supplying a first gas mixture including an inert gas into a processing chamber a first period of time in absent of a substrate, supplying a second gas mixture including an inert gas, a hydrogen containing gas and a halogen containing gas for a second period of time in absent of the substrate, and supplying a third gas mixture including an inert gas and a hydrogen containing gas for a third period of time in absent of the substrate in the processing chamber.

    Methods and solutions for cleaning INGAAS (or III-V) substrates

    公开(公告)号:US10147596B2

    公开(公告)日:2018-12-04

    申请号:US15871264

    申请日:2018-01-15

    Inventor: Chun Yan Xinyu Bao

    Abstract: Embodiments described herein generally relate to improved methods and solutions for cleaning a substrate prior to epitaxial growth of Group III-V channel materials. A first processing gas, which includes a noble gas and a hydrogen source, is used to remove the native oxide layer from the substrate surface. A second processing gas, Ar/Cl2/H2, is then used to create a reactive surface layer on the substrate surface. Finally, a hydrogen bake with a third processing gas, which includes a hydrogen source and an arsine source, is used to remove the reactive layer from the substrate surface.

    Method and apparatus for wafer outgassing control

    公开(公告)号:US10115607B2

    公开(公告)日:2018-10-30

    申请号:US15267232

    申请日:2016-09-16

    Abstract: Embodiments disclosed herein generally relate to apparatus and methods for controlling substrate outgassing such that hazardous gasses are eliminated from a surface of a substrate after a Si:As process has been performed on a substrate, and prior to additional processing. The apparatus includes a purge station including an enclosure, a gas supply coupled to the enclosure, an exhaust pump coupled to the enclosure, a first purge gas port formed in the enclosure, a first channel operatively connected to the gas supply at a first end and to the first purge gas port at a second end, a second purge gas port formed in the enclosure, and a second channel operatively connected to the second purge gas port at a third end and to the exhaust pump at a fourth end. The first channel includes a particle filter, a heater, and a flow controller. The second channel includes a dry scrubber.

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