公开(公告)号：US20230360924A1

公开(公告)日：2023-11-09

申请号：US17737311

申请日：2022-05-05

Applicant: Applied Materials, Inc.

Inventor： Supriya Ghosh ,  Susmit Singha Roy ,  Abhijit Basu Mallick ,  Shuchi Sunil Ojha ,  Praket Prakash Jha ,  Rui Cheng

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

CPC classification number: H01L21/31116 ,  H01J37/32844 ,  H01J37/32522 ,  H01J37/32449 ,  H01L21/02115 ,  H01J2237/332 ,  H01J2237/2001 ,  H01J2237/182 ,  H01J2237/334

Abstract: Exemplary methods of semiconductor processing may include providing a carbon-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 substrate may define one or more features along the substrate. The methods may include forming a plasma of the carbon-containing precursor within the processing region. The methods may include depositing a carbon-containing material on the substrate. The carbon-containing material may extend within the one or more features along the substrate. The methods may include forming a plasma of a hydrogen-containing precursor within the processing region of the semiconductor processing chamber. The methods may include treating the carbon-containing material with plasma effluents of the hydrogen-containing precursor. The plasma effluents of the hydrogen-containing precursor may cause a portion of the carbon-containing material to be removed from the substrate.

公开(公告)号：US20230360903A1

公开(公告)日：2023-11-09

申请号：US17737340

申请日：2022-05-05

Applicant: Applied Materials, Inc.

Inventor： Supriya Ghosh ,  Susmit Singha Roy ,  Abhijit Basu Mallick

IPC: H01L21/02

CPC classification number: H01L21/02123 ,  H01L21/02211 ,  H01L21/02345 ,  H01L21/0234

Abstract: Exemplary methods of semiconductor processing may include providing a silicon-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 substrate may define one or more features along the substrate. The methods may include depositing a silicon-containing material on the substrate. The silicon-containing material may extend within the one or more features along the substrate. The methods may include providing an oxygen-containing precursor. The methods may include annealing the silicon-containing material with the oxygen-containing precursor. The annealing may cause the silicon-containing material to expand within the one or more features. The methods may include repeating one or more of the operations to iteratively fill the one or more features on the substrate.

公开(公告)号：US11705335B2

公开(公告)日：2023-07-18

申请号：US17724994

申请日：2022-04-20

Applicant: Applied Materials, Inc.

Inventor： Srinivas Gandikota ,  Abhijit Basu Mallick ,  Swaminathan Srinivasan ,  Rui Cheng ,  Susmit Singha Roy ,  Gaurav Thareja ,  Mukund Srinivasan ,  Sanjay Natarajan

IPC: H01L21/225 ,  H01L21/30 ,  H01L21/02 ,  H01L21/67

CPC classification number: H01L21/2257 ,  H01L21/02043 ,  H01L21/02164 ,  H01L21/30 ,  H01L21/67167

Abstract: Methods of doping a semiconductor material are disclosed. Some embodiments provide for conformal doping of three dimensional structures. Some embodiments provide for doping with high concentrations of boron for p-type doping.

公开(公告)号：US20230170217A1

公开(公告)日：2023-06-01

申请号：US18101317

申请日：2023-01-25

Applicant: Applied Materials, Inc. ,  National University of Singapore

Inventor： Vicknesh Sahmuganathan ,  Jiteng Gu ,  Eswaranand Venkatasubramanian ,  Kian Ping Loh ,  Abhijit Basu Mallick ,  John Sudijono ,  Zhongxin Chen

IPC: H01L21/033 ,  H10B41/27

CPC classification number: H01L21/0332 ,  H01L21/0337 ,  H10B41/27 ,  H01L21/31144

Abstract: Methods to manufacture integrated circuits are described. Nanocrystalline diamond is used as a hard mask in place of amorphous carbon. Provided is a method of processing a substrate in which nanocrystalline diamond is used as a hard mask, wherein processing methods result in a smooth surface. The method involves two processing parts. Two separate nanocrystalline diamond recipes are combined—the first and second recipes are cycled to achieve a nanocrystalline diamond hard mask having high hardness, high modulus, and a smooth surface. In other embodiments, the first recipe is followed by an inert gas plasma smoothening process and then the first recipe is cycled to achieve a high hardness, a high modulus, and a smooth surface.

公开(公告)号：US11621160B2

公开(公告)日：2023-04-04

申请号：US17391412

申请日：2021-08-02

Applicant: Applied Materials, Inc.

Inventor： Eswaranand Venkatasubramanian ,  Srinivas Gandikota ,  Kelvin Chan ,  Atashi Basu ,  Abhijit Basu Mallick

IPC: H01L21/02 ,  H01L29/51 ,  H01L29/66 ,  H01L29/78 ,  C23C16/40 ,  C23C16/455

Abstract: A microelectronic device on a semiconductor substrate comprises: a gate electrode; and a spacer adjacent to the gate electrode, the spacer comprising: a the low-k dielectric film comprising one or more species of vanadium oxide, which is optionally doped, and an optional silicon nitride or oxide film. Methods comprise depositing a low-k dielectric film optionally sandwiched by a silicon nitride or oxide film to form a spacer adjacent to a gate electrode of a microelectronic device on a semiconductor substrate, wherein the low-k dielectric film comprises a vanadium-containing film.

公开(公告)号：US11594416B2

公开(公告)日：2023-02-28

申请号：US17007441

申请日：2020-08-31

Applicant: Applied Materials, Inc. ,  National University of Singapore

Inventor： Vicknesh Sahmuganathan ,  Jiteng Gu ,  Eswaranand Venkatasubramanian ,  Kian Ping Loh ,  Abhijit Basu Mallick ,  John Sudijono ,  Zhongxin Chen

IPC: H01L21/033 ,  H01L27/11556 ,  H01L21/311

Abstract: Methods to manufacture integrated circuits are described. Nanocrystalline diamond is used as a hard mask in place of amorphous carbon. Provided is a method of processing a substrate in which nanocrystalline diamond is used as a hard mask, wherein processing methods result in a smooth surface. The method involves two processing parts. Two separate nanocrystalline diamond recipes are combined—the first and second recipes are cycled to achieve a nanocrystalline diamond hard mask having high hardness, high modulus, and a smooth surface. In other embodiments, the first recipe is followed by an inert gas plasma smoothening process and then the first recipe is cycled to achieve a high hardness, a high modulus, and a smooth surface.

公开(公告)号：US11594415B2

公开(公告)日：2023-02-28

申请号：US16679698

申请日：2019-11-11

Applicant: Applied Materials, Inc.

Inventor： Susmit Singha Roy ,  Pramit Manna ,  Rui Cheng ,  Abhijit Basu Mallick

IPC: H01L21/033 ,  H01L21/02 ,  H01L21/3205 ,  H01L21/768

Abstract: Methods of forming a tungsten film comprising forming a boron seed layer on an oxide surface, an optional tungsten initiation layer on the boron seed layer and a tungsten containing film on the boron seed layer or tungsten initiation layer are described. Film stack comprising a boron seed layer on an oxide surface with an optional tungsten initiation layer and a tungsten containing film are also described.

公开(公告)号：US20230056280A1

公开(公告)日：2023-02-23

申请号：US17974859

申请日：2022-10-27

Applicant: Applied Materials, Inc.

Inventor： Jialiang Wang ,  Susmit Singha Roy ,  Abhijit Basu Mallick ,  Nitin K. Ingle

IPC: H01L21/285 ,  H01L23/532 ,  C23C16/26 ,  C01B32/184 ,  C23C16/455 ,  H01L21/02

Abstract: Exemplary methods of semiconductor processing may include delivering a carbon-containing precursor and a hydrogen-containing precursor to a processing region of a semiconductor processing chamber. The methods may include generating a plasma of the carbon-containing precursor and the hydrogen-containing precursor within the processing region of the semiconductor processing chamber. The methods may include forming a layer of graphene on a substrate positioned within the processing region of the semiconductor processing chamber. The substrate may be maintained at a temperature below or about 600° C. The methods may include halting flow of the carbon-containing precursor while maintaining the plasma with the hydrogen-containing precursor.

公开(公告)号：US11578409B2

公开(公告)日：2023-02-14

申请号：US16895579

申请日：2020-06-08

Applicant: Applied Materials, Inc.

Inventor： Shishi Jiang ,  Pramit Manna ,  Abhijit Basu Mallick

IPC: H01L21/02 ,  C23C16/50 ,  C23C16/30 ,  C23C16/24 ,  C23C16/34 ,  C23C16/32 ,  C23C16/36 ,  H01L21/285

Abstract: PECVD methods for depositing a film at a low deposition rate comprising intermittent activation of the plasma are disclosed. The flowable film can be deposited using at least a polysilane precursor and a plasma gas. The deposition rate of the disclosed processes may be less than 500 Å/min.

公开(公告)号：US11515170B2

公开(公告)日：2022-11-29

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 ,  H01L27/11551 ,  H01L27/11578

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.