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公开(公告)号:US11615966B2
公开(公告)日:2023-03-28
申请号:US16932801
申请日:2020-07-19
Applicant: Applied Materials, Inc.
Inventor: Shishi Jiang , Praket Prakash Jha , Abhijit Basu Mallick
IPC: H01L21/311 , H01L21/02 , H01L21/3213 , H01L21/3065
Abstract: Exemplary processing methods may include forming a plasma of a silicon-containing precursor. The methods may include depositing a flowable film on a semiconductor substrate with plasma effluents of the silicon-containing precursor. The semiconductor substrate may define a feature within the semiconductor substrate. The methods may include forming a plasma of a hydrogen-containing precursor within the processing region of the semiconductor processing chamber. A bias power may be applied to the substrate support from a bias power source. The methods may include etching the flowable film from a sidewall of the feature within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor. The methods may include densifying remaining flowable film within the feature defined within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor.
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公开(公告)号:US20220238331A1
公开(公告)日:2022-07-28
申请号:US17157307
申请日:2021-01-25
Applicant: Applied Materials, Inc.
Inventor: Aykut Aydin , Rui Cheng , Shishi Jiang , Karthik Janakiraman
IPC: H01L21/02 , H01L21/3065 , H01L21/768 , H01J37/32
Abstract: Methods for gap filling features of a substrate surface are described. Each of the features extends a distance into the substrate from the substrate surface and have a bottom and at least one sidewall. The methods include depositing a non-conformal film in the feature of the substrate surface with a plurality of high-frequency ratio-frequency (HFRF) pulses. The non-conformal film has a greater thickness on the bottom of the features than on the at least one sidewall. The deposited film is substantially etched from the sidewalls of the feature. The deposition and etch processes are repeated to fill the features.
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公开(公告)号:US20210118691A1
公开(公告)日:2021-04-22
申请号:US17137637
申请日:2020-12-30
Applicant: Applied Materials, Inc.
Inventor: Shishi Jiang , Pramit Manna , Bo Qi , Abhijit Basu Mallick , Rui Cheng , Tomohiko Kitajima , Harry S. Whitesell , Huiyuan Wang
IPC: H01L21/311 , H01L21/02
Abstract: Methods of etching film stacks to form gaps of uniform width are described. A film stack is etched through a hardmask. A conformal liner is deposited in the gap. The bottom of the liner is removed. The film stack is selectively etched relative to the liner. The liner is removed. The method may be repeated to a predetermined depth.
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公开(公告)号:US10784107B2
公开(公告)日:2020-09-22
申请号:US15969119
申请日:2018-05-02
Applicant: Applied Materials, Inc.
Inventor: Abhijit Basu Mallick , Pramit Manna , Yihong Chen , Ziqing Duan , Rui Cheng , Shishi Jiang
IPC: H01L21/3065 , H01L21/3105 , H01L21/321 , H01L21/033 , H01L21/768 , H01L21/3215
Abstract: Methods of forming self-aligned patterns are described. A film material is deposited on a patterned film to fill and cover features formed by the patterned film. The film material is recessed to a level below the top of the patterned film. The recessed film is converted to a metal film by exposure to a metal precursor followed by volumetric expansion of the metal film.
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公开(公告)号:US10714339B2
公开(公告)日:2020-07-14
申请号:US16246776
申请日:2019-01-14
Applicant: Applied Materials, Inc.
Inventor: Fei Wang , Miaojun Wang , Pramit Manna , Shishi Jiang , Abhijit Basu Mallick , Robert Jan Visser
IPC: H01L21/027 , H01L21/02 , H01L21/3205 , H01L21/32 , H01L21/311
Abstract: Methods of selectively depositing a mask layer on a surface of a patterned substrate and self-aligned patterned masks are provided herein. In one embodiment, a method of selectivity depositing a mask layer includes positioning the patterned substrate on a substrate support in a processing volume of a processing chamber, exposing the surface of the patterned substrate to a parylene monomer gas, forming a first layer on the patterned substrate, wherein the first layer comprises a patterned parylene layer, and depositing a second layer on the first layer. In another embodiment, a self-aligned patterned mask comprises a parylene layer comprising a plurality of parylene features and a plurality of openings, the parylene layer is disposed on a patterned substrate comprising a dielectric layer and a plurality of metal features, the plurality of metal feature comprise a parylene deposition inhibitor metal, and the plurality of parylene features are selectivity formed on dielectric surfaces of the dielectric layer.
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公开(公告)号:US10559497B2
公开(公告)日:2020-02-11
申请号:US16006402
申请日:2018-06-12
Applicant: Applied Materials, Inc.
Inventor: Yong Wu , Yihong Chen , Shishi Jiang , Ziqing Duan , Abhijit Basu Mallick , Srinivas Gandikota
IPC: H01L21/00 , H01L21/768 , H01L21/285 , H01L23/532 , H01L21/02
Abstract: Methods for filling a substrate feature with a seamless tungsten fill are described. The methods include depositing a tungsten film, oxidizing the tungsten film to a tungsten oxide pillar, reducing the tungsten oxide film to a seamless tungsten gapfill and optionally depositing additional tungsten on the tungsten gapfill.
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公开(公告)号:US20180323068A1
公开(公告)日:2018-11-08
申请号:US15969119
申请日:2018-05-02
Applicant: Applied Materials, Inc.
Inventor: Abhijit Basu Mallick , Pramit Manna , Yihong Chen , Ziqing Duan , Rui Cheng , Shishi Jiang
IPC: H01L21/033
Abstract: Methods of forming self-aligned patterns are described. A film material is deposited on a patterned film to fill and cover features formed by the patterned film. The film material is recessed to a level below the top of the patterned film. The recessed film is converted to a metal film by exposure to a metal precursor followed by volumetric expansion of the metal film.
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公开(公告)号:US20220020594A1
公开(公告)日:2022-01-20
申请号:US16932801
申请日:2020-07-19
Applicant: Applied Materials, Inc.
Inventor: Shishi Jiang , Praket Prakash Jha , Abhijit Basu Mallick
IPC: H01L21/311 , H01L21/02
Abstract: Exemplary processing methods may include forming a plasma of a silicon-containing precursor. The methods may include depositing a flowable film on a semiconductor substrate with plasma effluents of the silicon-containing precursor. The semiconductor substrate may define a feature within the semiconductor substrate. The methods may include forming a plasma of a hydrogen-containing precursor within the processing region of the semiconductor processing chamber. A bias power may be applied to the substrate support from a bias power source. The methods may include etching the flowable film from a sidewall of the feature within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor. The methods may include densifying remaining flowable film within the feature defined within the semiconductor substrate with plasma effluents of the hydrogen-containing precursor.
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公开(公告)号:US10818490B2
公开(公告)日:2020-10-27
申请号:US16201095
申请日:2018-11-27
Applicant: Applied Materials, Inc.
Inventor: Shishi Jiang , Kurtis Leschkies , Pramit Manna , Abhijit Basu Mallick , Steven Verhaverbeke
IPC: H01L21/02 , C23C8/10 , H01L21/321 , H01L21/67 , H01L21/677
Abstract: Implementations described herein generally relate to methods for forming a low-k dielectric material on a semiconductor substrate. More specifically, implementations described herein relate to methods of forming a silicon oxide film at high pressure and low temperatures. In one implementation, a method of forming a silicon oxide film is provided. The method comprises loading a substrate having a silicon-containing film formed thereon into a processing region of a high-pressure vessel. The method further comprises forming a silicon oxide film on the silicon-containing film. Forming the silicon oxide film on the silicon-containing film comprises exposing the silicon-containing film to a processing gas comprising steam at a pressure greater than about 1 bar and maintaining the high-pressure vessel at a temperature between about 100 degrees Celsius and about 500 degrees Celsius.
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公开(公告)号:US10699903B2
公开(公告)日:2020-06-30
申请号:US16659194
申请日:2019-10-21
Applicant: Applied Materials, Inc.
Inventor: Pramit Manna , Shishi Jiang , Rui Cheng , Abhijit Basu Mallick
IPC: H01L21/00 , H01L21/02 , H01L21/762 , H01L29/06
Abstract: Methods for gapfilling semiconductor device features, such as high aspect ratio trenches, with amorphous silicon film are provided. First, a substrate having features formed in a first surface thereof is positioned in a processing chamber. A conformal deposition process is then performed to deposit a conformal silicon liner layer on the sidewalls of the features and the exposed first surface of the substrate between the features. A flowable deposition process is then performed to deposit a flowable silicon layer over the conformal silicon liner layer. A curing process is then performed to increase silicon density of the flowable silicon layer. Methods described herein generally improve overall etch selectivity by the conformal silicon deposition and the flowable silicon deposition two-step process to realize seam-free gapfilling between features with high quality amorphous silicon film.
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