Patents by Inventor Qingguo Wu

Qingguo Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11948064
    Abstract: Methods, systems, and computer program products are provided for cleaning noisy data from unlabeled datasets using autoencoders. A method includes receiving training data including noisy samples and other samples. An autoencoder network is trained based on the training data to increase a first metric based on the noisy samples and to reduce a second metric based on the other samples. Unlabeled data including unlabeled samples is received. A plurality of third outputs is generated by the autoencoder network based on the plurality of unlabeled samples. For each respective unlabeled sample, a respective third metric is determined based on the respective unlabeled sample and a respective third output, and whether to label the respective unlabeled sample as noisy or clean is determined based on the respective third metric and a threshold. Each respective unlabeled sample determined to be labeled as noisy is cleaned.
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: April 2, 2024
    Assignee: Visa International Service Association
    Inventors: Qingguo Chen, Yiwei Cai, Dan Wang, Peng Wu
  • Patent number: 8362571
    Abstract: Transistor architectures and fabrication processes generate channel strain without adversely impacting the efficiency of the transistor fabrication process while preserving the material quality and enhancing the performance of the resulting transistor. Transistor strain is generated is PMOS devices using a highly compressive post-salicide amorphous carbon capping layer applied as a blanket over on at least the source and drain regions. The stress from this capping layer is uniaxially transferred to the PMOS channel through the source-drain regions to create compressive strain in PMOS channel.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: January 29, 2013
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, James S. Sims, Mandyam Sriram, Seshasayee Varadarajan, Haiying Fu, Pramod Subramonium, Jon Henri, Sirish Reddy
  • Patent number: 7998881
    Abstract: Transistor architectures and fabrication processes generate channel strain without adversely impacting the efficiency of the transistor fabrication process while preserving the material quality and enhancing the performance of the resulting transistor. Transistor strain is generated is PMOS devices using a highly compressive post-salicide boron doped carbon capping layer applied as a blanket over on at least the source and drain regions. The stress from this capping layer is uniaxially transferred to the PMOS channel through the source-drain regions to create compressive strain in PMOS channel.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: August 16, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, James S. Sims, Mandyam Sriram, Seshasayee Varadarajan, Akhil Singhal
  • Patent number: 7923385
    Abstract: Methods of preparing a carbon doped oxide (CDO) layers having a low dielectric constant are provided. The methods involve, for instance, providing a substrate to a deposition chamber and exposing it to one or multiple carbon-doped oxide precursors having molecules with at least one carbon-carbon triple bond, or carbon-carbon double bond, or a combination of these groups and depositing the carbon doped oxide dielectric layer under conditions in which the resulting dielectric layer has a dielectric constant of not greater than about 2.7. Methods of preparing a low stress porous low-k dielectric material on a substrate are provided. The methods involve the use of a structure former precursor and/or porogen precursor with one or more organic functional groups. In some cases, the structure former precursor has carbon-carbon double or triple bonds. In other cases, one or both of the structure former precursor and porogen precursor has one or more bulky organic groups.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: April 12, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu
  • Patent number: 7906174
    Abstract: Methods of preparing low-k carbon-doped oxide (CDO) films having high mechanical strength are provided. The methods involve contacting the substrate with a CDO precursor to deposit the film typically using a plasma-enhanced chemical vapor deposition (PECVD) method. After the film is deposited, it is exposed to ultraviolet radiation in a manner that increases cross-linking and/or lowers the dielectric constant of the film. The resulting films have ultra-low dielectric constants, e.g., about 2.5, but also high mechanical strength, e.g., a modulus of at least about 7.5 GPa. In certain embodiments, a single hydrocarbon precursor is used, resulting in an improved process for obtaining ULK films that does not require dual (porogen and backbone) precursors.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: March 15, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Easwar Srinivasan, Dan Vitkavage
  • Patent number: 7906817
    Abstract: Transistor architectures and fabrication processes generate channel strain without adversely impacting the efficiency of the transistor fabrication process while preserving the material quality and enhancing the performance of the resulting transistor. Transistor strain is generated is PMOS devices using a highly compressive post-salicide amorphous carbon capping layer applied as a blanket over on at least the source and drain regions. The stress from this capping layer is uniaxially transferred to the PMOS channel through the source-drain regions to create compressive strain in PMOS channel.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: March 15, 2011
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, James S. Sims, Mandyam Sriram, Seshasayee Varadarajan, Haiying Fu, Pramod Subramonium, Jon Henri, Sirish Reddy
  • Patent number: 7799705
    Abstract: Methods of preparing a low stress porous low-k dielectric material on a substrate are provided. The methods involve the use of a structure former precursor and/or porogen precursor with one or more organic functional groups. In some cases, the structure former precursor has carbon-carbon double or triple bonds. In other cases, one or both of the structure former precursor and porogen precursor has one or more bulky organic groups. In other cases, the structure former precursor has carbon-carbon double or triple bonds and one or both of the structure former precursor and porogen precursor has one or more bulky organic groups. Once the precursor film is formed, the porogen is removed, leaving a porous low-k dielectric matrix with high mechanical strength. Different types of structure former precursors and porogen precursors are described. The resulting low stress low-k porous film may be used as a low-k dielectric film in integrated circuit manufacturing applications.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: September 21, 2010
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu, David C. Smith, David Mordo
  • Patent number: 7781351
    Abstract: Methods of preparing a carbon doped oxide (CDO) layer of low dielectric constant and low residual stress involving, for instance, providing a substrate to a deposition chamber and exposing it to an organosilicon precursor containing unsaturated C—C bonds or to multiple organic precursors including at least one organosilicon and at least one unsaturated C—C bond are provided. The methods may also involve igniting and maintaining a plasma in a deposition chamber using radio frequency power having high and low frequency components with a high percentage of the low frequency component, and depositing the carbon doped dielectric layer under conditions in which the resulting dielectric layer has a residual stress of not greater than, e.g., about 50 MPa, and a dielectric constant not greater than about 3.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: August 24, 2010
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu, Dong Niu, Ananda K. Bandyopadhyay, David Mordo
  • Patent number: 7737525
    Abstract: Methods of preparing a carbon doped oxide (CDO) layers having a low dielectric constant are provided. The methods involve, for instance, providing a substrate to a deposition chamber and exposing it to one or multiple carbon-doped oxide precursors having molecules with at least one carbon-carbon triple bond, or carbon-carbon double bond, or a combination of these groups and depositing the carbon doped oxide dielectric layer under conditions in which the resulting dielectric layer has a dielectric constant of not greater than about 2.7.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: June 15, 2010
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu, Xingyuan Tang
  • Patent number: 7622400
    Abstract: Methods of forming a dielectric layer having a low dielectric constant and high mechanical strength are provided. The methods involve depositing a sub-layer of the dielectric material on a substrate, followed by treating the sub-layer with a plasma. The process of depositing and plasma treating the sub-layers is repeated until a desired thickness has been reached.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: November 24, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Keith Fox, Easwar Srinivasan, David Mordo, Qingguo Wu
  • Publication number: 20090239390
    Abstract: Methods of preparing a carbon doped oxide (CDO) layers having a low dielectric constant are provided. The methods involve, for instance, providing a substrate to a deposition chamber and exposing it to one or multiple carbon-doped oxide precursors having molecules with at least one carbon-carbon triple bond, or carbon-carbon double bond, or a combination of these groups and depositing the carbon doped oxide dielectric layer under conditions in which the resulting dielectric layer has a dielectric constant of not greater than about 2.7. Methods of preparing a low stress porous low-k dielectric material on a substrate are provided. The methods involve the use of a structure former precursor and/or porogen precursor with one or more organic functional groups. In some cases, the structure former precursor has carbon-carbon double or triple bonds. In other cases, one or both of the structure former precursor and porogen precursor has one or more bulky organic groups.
    Type: Application
    Filed: June 5, 2009
    Publication date: September 24, 2009
    Applicant: NOVELLUS SYSTEMS, INC.
    Inventors: Qingguo Wu, Haiying Fu
  • Patent number: 7473653
    Abstract: Methods of preparing a low stress porous low-k dielectric material on a substrate are provided. The methods involve the use of a structure former precursor and/or porogen precursor with one or more organic functional groups. In some cases, the structure former precursor has carbon-carbon double or triple bonds. In other cases, one or both of the structure former precursor and porogen precursor has one or more bulky organic groups. In other cases, the structure former precursor has carbon-carbon double or triple bonds and one or both of the structure former precursor and porogen precursor has one or more bulky organic groups. Once the precursor film is formed, the porogen is removed, leaving a porous low-k dielectric matrix with high mechanical strength. Different types of structure former precursors and porogen precursors are described. The resulting low stress low-k porous film may be used as a low-k dielectric film in integrated circuit manufacturing applications.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: January 6, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu, David C. Smith, David Mordo
  • Patent number: 7390537
    Abstract: Methods of preparing a carbon doped oxide (CDO) layer with a low dielectric constant and low residual stress are provided. The methods involve, for instance, providing a substrate to a deposition chamber and exposing it to a chemical precursor having molecules with at least one carbon-carbon triple bond, followed by igniting and maintaining a plasma in a deposition chamber using radio frequency power having high and low frequency components or one frequency component only, and depositing the carbon doped oxide film under conditions in which the resulting dielectric layer has a compressive stress or a tensile stress of not greater than, e.g., about 50 MPa, and dielectric constant of less than 3.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: June 24, 2008
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Dong Niu, Haiying Fu
  • Patent number: 7341761
    Abstract: Methods of preparing a carbon doped oxide (CDO) layers having a low dielectric constant are provided. The methods involve, for instance, providing a substrate to a deposition chamber and exposing it to one or multiple carbon-doped oxide precursors having molecules with at least one carbon—carbon triple bond, or carbon—carbon double bond, or a combination of these groups and depositing the carbon doped oxide dielectric layer under conditions in which the resulting dielectric layer has a dielectric constant of not greater than about 2.7.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: March 11, 2008
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu, Xingyuan Tang
  • Patent number: 7326444
    Abstract: Methods of preparing a carbon doped oxide (CDO) layer with a low dielectric constant (<3) and low residual stress without sacrificing important integration properties such as dry etch rate, film stability during wet cleaning, electrical leakage current, and extinction coefficient are provided. The methods involve, for instance, providing a substrate to a deposition chamber and exposing it to a chemical precursor having molecules with at least one carbon-carbon triple bond, followed by igniting and maintaining a plasma in a deposition chamber using radio frequency power having high and low frequency components or one frequency component only, and depositing the carbon doped oxide film under conditions in which the resulting dielectric layer has a compressive stress or a tensile stress of between about ?20 to 30 MPa and a dielectric constant of between about 2.5-3.0, a C?C to SiO bond ratio of between about 0.05% to 5%, a SiC to SiO bond ratio of between about 2% to 10%, and a refractive index (RI) of 1.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: February 5, 2008
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Dong Niu, Honghong Wang, Haiying Fu
  • Patent number: 7241704
    Abstract: Methods of preparing a low stress porous low-k dielectric material on a substrate are provided. The methods involve the use of a structure former precursor and/or porogen precursor with one or more organic functional groups. In some cases, the structure former precursor has carbon-carbon double or triple bonds. In other cases, one or both of the structure former precursor and porogen precursor has one or more bulky organic groups. In other cases, the structure former precursor has carbon-carbon double or triple bonds and one or both of the structure former precursor and porogen precursor has one or more bulky organic groups. Once the precursor film is formed, the porogen is removed, leaving a porous low-k dielectric matrix with high mechanical strength. Different types of structure former precursors and porogen precursors are described. The resulting low stress low-k porous film may be used as a low-k dielectric film in integrated circuit manufacturing applications.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: July 10, 2007
    Assignee: Novellus Systems, Inc.
    Inventors: Qingguo Wu, Haiying Fu, David C. Smith, David Mordo
  • Patent number: 7208389
    Abstract: Methods of preparing a porous low-k dielectric material on a substrate are provided. The methods involve the use of ultraviolet radiation to react with and remove porogen from a porogen containing precursor film, leaving a porous low-k dielectric matrix. Methods using oxidative conditions and non-oxidative conditions are described. The methods described may be used to remove porogen from porogen-containing precursor films. The porogen may be a hydrocarbon such as a terpene (e.g., alpha-terpinene) or a norbornene (e.g., ENB). The resulting porous low-k dielectric matrix can then be annealed to remove water and remaining silanols capped to protect it from degradation by ambient conditions, which methods will also be described.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 24, 2007
    Assignee: Novellus Systems, Inc.
    Inventors: Adrianne K. Tipton, Brian G. Lu, Patrick A. Van Cleemput, Michelle T. Schulberg, Qingguo Wu, Haiying Fu, Feng Wang
  • Patent number: 7112615
    Abstract: Methods and systems are disclosed for fabricating ultra-low dielectric constant porous materials. In one aspect of the invention, a method for making porous low-k films is disclosed. The method uses polymer based porogens as sacrificial templates around which a chemical vapor deposition (CVD) or plasma enhanced chemical vapor deposition (PECVD) deposited matrix is formed. Upon pyrolysis, the porogens decompose resulting in a porous ultra-low dielectric material. This method can be used, for example, to produce porous organosilicate glass (OSG) materials, ultra-low dielectric nanoporous materials, porous ceramics, porous scaffolds, and/or porous metals. Various uses and embodiments of the methods and systems of this invention are disclosed.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: September 26, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Karen K. Gleason, Qingguo Wu, April Ross
  • Publication number: 20040249006
    Abstract: Methods and systems are disclosed for fabricating ultra-low dielectric constant porous materials. In one aspect of the invention, a method for making porous low-k films is disclosed. The method uses polymer based porogens as sacrificial templates around which a chemical vapor deposition (CVD) or plasma enhanced chemical vapor deposition (PECVD) deposited matrix is formed. Upon pyrolysis, the porogens decompose resulting in a porous ultra-low dielectric material. This method can be used, for example, to produce porous organosilicate glass (OSG) materials, ultra-low dielectric nanoporous materials, porous ceramics, porous scaffolds, and/or porous metals. Various uses and embodiments of the methods and systems of this invention are disclosed.
    Type: Application
    Filed: July 22, 2003
    Publication date: December 9, 2004
    Inventors: Karen K. Gleason, Qingguo Wu, April Ross