公开(公告)号：US20240420952A1

公开(公告)日：2024-12-19

申请号：US18209700

申请日：2023-06-14

Applicant: Applied Materials, Inc.

Inventor： Bhaskar Soman ,  Supriya Ghosh ,  Yanze Wu ,  Zeqing Shen ,  Susmit Singha Roy ,  Abhijit Basu Mallick

IPC: H01L21/02 ,  H01L21/3205 ,  H01L21/321

Abstract: Exemplary methods of semiconductor processing may include iteratively repeating a deposition cycle several times on a substrate disposed within a processing region of a semiconductor processing chamber. Each deposition cycle may include depositing a silicon-containing material on the substrate and exposing the silicon-containing material to a first oxygen plasma to convert the silicon-containing material to a silicon-and-oxygen-containing material. After the iterative repeating of the deposition cycle, the method may include performing a densification operation by exposing the silicon-and-oxygen-containing material to a second oxygen plasma to produce a densified silicon-and-oxygen-containing material where the quality of the densified silicon-and-oxygen-containing material is greater than the silicon-and-oxygen-containing material. The method may further include iteratively repeating the iteratively repeated deposition cycles and the densification operation several times.

公开(公告)号：US11972940B2

公开(公告)日：2024-04-30

申请号：US17722648

申请日：2022-04-18

Applicant: Applied Materials, Inc.

Inventor： Xinke Wang ,  Bhaskar Jyoti Bhuyan ,  Zeqing Shen ,  Susmit Singha Roy ,  Abhijit Basu Mallick ,  Jiecong Tang ,  John Sudijono ,  Mark Saly

IPC: H01L21/02 ,  C23C16/04 ,  C23C16/26 ,  C23C16/56

CPC classification number: H01L21/02118 ,  C23C16/04 ,  C23C16/26 ,  C23C16/56 ,  H01L21/02205 ,  H01L21/0228 ,  H01L21/02304

Abstract: Methods of selectively depositing a carbon-containing layer are described. Exemplary processing methods may include flowing a first precursor over a substrate comprising a metal surface and a non-metal surface to form a first portion of an initial carbon-containing film on the metal surface. The methods may include removing a first precursor effluent from the substrate. A second precursor may then be flowed over the substrate to react with the first portion of the initial carbon-containing layer. The methods may include removing a second precursor effluent from the substrate. The methods may include pre-treating the metal surface of the substrate to form a metal oxide surface on the metal surface.

公开(公告)号：US20220223409A1

公开(公告)日：2022-07-14

申请号：US17144972

申请日：2021-01-08

Applicant: Applied Materials, Inc.

Inventor： Zeqing Shen ,  Bo Qi ,  Abhijit Basu Mallick ,  Nitin K. Ingle

IPC: H01L21/02

Abstract: Exemplary methods of semiconductor processing may include providing a boron-and-carbon-and-nitrogen-containing precursor to a processing region of a semiconductor processing chamber. A substrate may be disposed within the processing region of the semiconductor processing chamber. The methods may include generating a capacitively-coupled plasma of the boron-and-carbon-and-nitrogen-containing precursor. The methods may include forming a boron-and-carbon-and-nitrogen-containing layer on the substrate. The boron-and-carbon-and-nitrogen-containing layer may be characterized by a dielectric constant below or about 3.5.

公开(公告)号：US20240420934A1

公开(公告)日：2024-12-19

申请号：US18209711

申请日：2023-06-14

Applicant: Applied Materials, Inc.

Inventor： Bhaskar Soman ,  Yanze Wu ,  Zeqing Shen ,  Supriya Ghosh ,  Susmit Singha Roy ,  Abhijit Basu Mallick ,  Siyao Wang ,  Keith Tatseun Wong ,  Lakmal C. Kalutarage

IPC: H01J37/32 ,  H01L21/02 ,  H01L21/311

Abstract: Exemplary methods of semiconductor processing may include methods for nonconformally building up silicon-and-oxygen-containing material where the top of the feature preferentially fills at a slower rate as compared to the bottom of the feature. Such methods may include iterative nonconformal etching operations and/or iterative nonconformal inhibition operations. For example, after building up a layer comprising silicon-and-oxygen-containing material, the layer may be nonconformally etched before building up another layer comprising silicon-and-oxygen-containing material. In another example, in the building up of the layer, an inhibitor may be introduced preferentially at and near the top of the features to provide nonconformal buildup of the silicon-and-oxygen-containing material.

公开(公告)号：US20240282632A1

公开(公告)日：2024-08-22

申请号：US18109365

申请日：2023-02-14

Applicant: Applied Materials, Inc.

Inventor： Zachary J. Devereaux ,  Bhaskar Jyoti Bhuyan ,  Thomas Joseph Knisley ,  Zeqing Shen ,  Susmit Singha Roy ,  Mark J. Saly ,  Abhijit Basu Mallick

IPC: H01L21/768 ,  C23C16/04 ,  C23C16/32 ,  C23C16/40 ,  C23C16/455 ,  H01L21/02

CPC classification number: H01L21/76897 ,  C23C16/042 ,  C23C16/32 ,  C23C16/402 ,  C23C16/45527 ,  H01L21/02126 ,  H01L21/02164 ,  H01L21/0228 ,  H01L21/02304 ,  H01L21/76802

Abstract: A method includes selectively forming at least one passivation layer on at least one first conductive layer disposed in a first interlevel dielectric (ILD) layer, selectively forming at least one catalyst layer on the at least one passivation layer, wherein the at least one passivation layer prevents formation of the at least one catalyst layer on the first conductive layer, and selectively forming at least one supplemental dielectric layer using the at least one catalyst layer. The at least one catalyst layer induces formation of the at least one supplemental dielectric layer, and the at least one supplemental dielectric layer includes a dielectric material having a dielectric constant of less than or equal to about 4.

公开(公告)号：US11732352B2

公开(公告)日：2023-08-22

申请号：US17173871

申请日：2021-02-11

Applicant: Applied Materials, Inc.

Inventor： Zeqing Shen ,  Bo Qi ,  Abhijit Basu Mallick ,  Nitin K. Ingle

IPC: C23C16/40 ,  C23C16/52

CPC classification number: C23C16/402 ,  C23C16/52

Abstract: Hydrogen free (low-H) silicon dioxide layers are disclosed. Some embodiments provide methods for forming low-H layers using hydrogen-free silicon precursors and hydrogen-free oxygen sources. Some embodiments provide methods for tuning the stress profile of low-H silicon dioxide films. Further, some embodiments of the disclosure provide oxide-nitride stacks which exhibit reduced stack bow after anneal.

公开(公告)号：US20230058831A1

公开(公告)日：2023-02-23

申请号：US17407533

申请日：2021-08-20

Applicant: Applied Materials, Inc.

Inventor： Bhaskar Jyoti Bhuyan ,  Zeqing Shen ,  Susmit Singha Roy ,  Abhijit Basu Mallick

IPC: H01L21/02 ,  H01L21/3213 ,  H01L21/56

Abstract: Exemplary methods of semiconductor processing may include etching one or more features partially through a stack of layers formed on a substrate. The methods may include halting the etching prior to penetrating fully through the stack of layers formed on the substrate. The methods may include forming a layer of carbon-containing material along the stack of layers on the substrate. The layer of carbon-containing material may include a metal. The methods may include etching the one or more features fully through the stack of layers on the substrate.

公开(公告)号：US20230057258A1

公开(公告)日：2023-02-23

申请号：US17407504

申请日：2021-08-20

Applicant: Applied Materials, Inc.

Inventor： Bhaskar Jyoti Bhuyan ,  Zeqing Shen ,  Susmit Singha Roy ,  Abhijit Basu Mallick

IPC: H01L21/768 ,  H01L21/311

Abstract: Exemplary methods of semiconductor processing may include forming a layer of carbon-containing material on a substrate disposed within a processing region of a semiconductor processing chamber. The substrate may include an exposed region of a first dielectric material and an exposed region of a metal-containing material. The layer of carbon-containing material may be selectively formed over the exposed region of the metal-containing material. Forming the layer of carbon-containing material may include one or more cycles of providing a first molecular species that selectively couples with the metal-containing material. Forming the layer of carbon-containing material may include providing a second molecular species that selectively couples with the first molecular species. The methods may include selectively depositing a second dielectric material on the exposed region of the first dielectric material.

公开(公告)号：US20220336212A1

公开(公告)日：2022-10-20

申请号：US17235241

申请日：2021-04-20

Applicant: Applied Materials, Inc.

Inventor： Zeqing Shen ,  Bo Qi ,  Abhijit Basu Mallick

IPC: H01L21/02 ,  H01L21/311 ,  H01J37/32

Abstract: Exemplary methods of semiconductor processing may include providing a silicon-containing precursor and a carbon-containing precursor to a processing region of a semiconductor processing chamber. The carbon-containing precursor may be characterized by a carbon-carbon double bond or a carbon-carbon triple bond. A substrate may be disposed within the processing region of the semiconductor processing chamber. The methods may include providing a boron-containing precursor to the processing region of the semiconductor processing chamber. The methods may include thermally reacting the silicon-containing precursor, the carbon-containing precursor, and the boron-containing precursor at a temperature above about 250° C. The methods may include forming a silicon-and-carbon-containing layer on the substrate.

公开(公告)号：US20210305041A1

公开(公告)日：2021-09-30

申请号：US17211452

申请日：2021-03-24

Applicant: Applied Materials, Inc.

Inventor： Bo Qi ,  Zeqing Shen ,  Abhijit Basu Mallick

IPC: H01L21/02

Abstract: Exemplary methods of semiconductor processing may include providing a boron-containing precursor to a processing region of a semiconductor processing chamber. A substrate may be disposed within the processing region of the semiconductor processing chamber. The methods may include providing a carbon-containing precursor to the processing region of the semiconductor processing chamber. The carbon-containing precursor may be characterized by a carbon-carbon double bond or a carbon-carbon triple bond. The methods may include thermally reacting the boron-containing precursor and the carbon-containing precursor at a temperature below about 650° C. The methods may include forming a boron-and-carbon-containing layer on the substrate.