Patents by Inventor Yiqun Bai

Yiqun Bai 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).

  • Publication number: 20160343591
    Abstract: Embodiments of the present disclosure are directed to techniques and configurations for an integrated circuit (IC) package having an underfill layer with filler particles arranged in a generally random distribution pattern. In some embodiments, a generally random distribution pattern of filler particles may be obtained by reducing an electrostatic charge on one or more components of the IC package assembly, by applying a surface treatment to filler to reduce filler electrical charge, by applying an electric force against the filler particles of the underfill material in a direction opposite to a direction of gravitational force, by using an underfill material with a relatively low maximum filler particle size, and/or by snap curing the underfill layer at a relatively low temperature. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: August 1, 2016
    Publication date: November 24, 2016
    Inventors: Suriyakala Ramalingam, Manish Dubey, Hsin-Yu Li, Michelle S. Phen-Givoni, Hitesh Arora, Nisha Ananthakrishnan, Yiqun Bai, Yonghao Xiu, Rajendra C. Dias
  • Patent number: 9431274
    Abstract: Embodiments of the present disclosure are directed to techniques and configurations for an integrated circuit (IC) package having an underfill layer with filler particles arranged in a generally random distribution pattern. In some embodiments, a generally random distribution pattern of filler particles may be obtained by reducing an electrostatic charge on one or more components of the IC package assembly, by applying a surface treatment to filler to reduce filler electrical charge, by applying an electric force against the filler particles of the underfill material in a direction opposite to a direction of gravitational force, by using an underfill material with a relatively low maximum filler particle size, and/or by snap curing the underfill layer at a relatively low temperature. Other embodiments may be described and/or claimed.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 30, 2016
    Assignee: Intel Corporation
    Inventors: Suriyakala Ramalingam, Manish Dubey, Hsin-Yu Li, Michelle S. Phen, Hitesh Arora, Nisha Ananthakrishnan, Yiqun Bai, Yonghao Xiu, Rajendra C. Dias
  • Publication number: 20160240395
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include modifying an underfill material with one of a thiol adhesion promoter, an azole coupling agent, surface modified filler, and peroxide based cross-linking polymer chemistries to greatly enhance adhesion in package structures utilizing the embodiments herein.
    Type: Application
    Filed: April 26, 2016
    Publication date: August 18, 2016
    Inventors: Yiqun Bai, Yuying Wei, Arjun Krishnan, Suriyakala Ramalingam, Yonghao Xiu, Beverly J. Canham, Sivakumar Nagarajan, Saikumar Jayaraman, Nisha Ananthakrishnan
  • Publication number: 20160168351
    Abstract: An underfill composition comprises a curable resin, a plurality of filler particles loaded within the resin, the filler particles comprising at least 50 weight % of the underfill composition. The filler particles comprise first filler particles having a particle size of from 0.1 micrometers to 15 micrometers and second filler particles having a particle size of less than 100 nanometers. A viscosity of the underfill composition is less than a viscosity of a corresponding composition not including the second filler particles.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventors: Yonghao Xiu, Nisha Ananthakrishnan, Yiqun Bai, Arjun Krishnan
  • Patent number: 9330993
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include modifying an underfill material with one of a thiol adhesion promoter, an azole coupling agent, surface modified filler, and peroxide based cross-linking polymer chemistries to greatly enhance adhesion in package structures utilizing the embodiments herein.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: May 3, 2016
    Assignee: Intel Corporation
    Inventors: Yiqun Bai, Yuying Wei, Arjun Krishnan, Suriyakala Ramalingam, Yonghao Xiu, Beverly J. Canham, Sivakumar Nagarajan, Saikumar Jayaraman, Nisha Ananthakrishnan
  • Patent number: 9269596
    Abstract: An underfill composition comprises a curable resin, a plurality of filler particles loaded within the resin, the filler particles comprising at least 50 weight % of the underfill composition. The filler particles comprise first filler particles having a particle size of from 0.1 micrometers to 15 micrometers and second filler particles having a particle size of less than 100 nanometers. A viscosity of the underfill composition is less than a viscosity of a corresponding composition not including the second filler particles.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 23, 2016
    Assignee: Intel Corporation
    Inventors: Yonghao Xiu, Nisha Ananthakrishnan, Yiqun Bai, Arjun Krishnan
  • Patent number: 9230833
    Abstract: Embodiments of the present description include methods for attaching a microelectronic device to a microelectronic substrate with interconnection structures after disposing of an underfill material on the microelectronic device, wherein filler particless within the underfill material may be repelled away from the interconnection structures prior to connecting the microelectronic device to the microelectronic structure. These methods may include inducing a charge on the interconnection structures and may include placing the interconnection structures between opposing plates and producing a bias between the opposing plates after depositing the underfill material on the interconnection structures.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: January 5, 2016
    Assignee: Intel Corporation
    Inventors: Manish Dubey, Rajendra C. Dias, Yonghao Xiu, Arjun Krishnan, Yiqun Bai, Purushotham Kaushik Muthur Srinath
  • Publication number: 20150179479
    Abstract: Embodiments of the present description include methods for attaching a microelectronic device to a microelectronic substrate with interconnection structures after disposing of an underfill material on the microelectronic device, wherein filler particless within the underfill material may be repelled away from the interconnection structures prior to connecting the microelectronic device to the microelectronic structure. These methods may include inducing a charge on the interconnection structures and may include placing the interconnection structures between opposing plates and producing a bias between the opposing plates after depositing the underfill material on the interconnection structures.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Applicant: INTEL CORPORATION
    Inventors: Manish Dubey, Rajendra C. Dias, Yonghao Xiu, Arjun Krishnan, Yiqun Bai, Purushothan Kaushik Muthur Srinath
  • Publication number: 20150179478
    Abstract: An underfill composition comprises a curable resin, a plurality of filler particles loaded within the resin, the filler particles comprising at least 50 weight % of the underfill composition. The filler particles comprise first filler particles having a particle size of from 0.1 micrometers to 15 micrometers and second filler particles having a particle size of less than 100 nanometers. A viscosity of the underfill composition is less than a viscosity of a corresponding composition not including the second filler particles.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 25, 2015
    Inventors: Yonghao Xiu, Nisha Ananthakrishnan, Yiqun Bai, Arjun Krishnan
  • Patent number: 8999765
    Abstract: Embodiments of the present description include methods for attaching a microelectronic device to a microelectronic substrate with interconnection structures after disposing of an underfill material on the microelectronic device, wherein filler particles within the underfill material may be repelled away from the interconnection structures prior to connecting the microelectronic device to the microelectronic structure. These methods may include inducing a charge on the interconnection structures and may include placing the interconnection structures between opposing plates and producing a bias between the opposing plates after depositing the underfill material on the interconnection structures.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: April 7, 2015
    Assignee: Intel Corporation
    Inventors: Manish Dubey, Rajendra C. Dias, Yonghao Xiu, Arjun Krishnan, Yiqun Bai, Purushotham Kaushik Muthur Srinath
  • Publication number: 20140377916
    Abstract: Embodiments of the present description include methods for attaching a microelectronic device to a microelectronic substrate with interconnection structures after disposing of an underfill material on the microelectronic device, wherein filler particles within the underfill material may be repelled away from the interconnection structures prior to connecting the microelectronic device to the microelectronic structure. These methods may include inducing a charge on the interconnection structures and may include placing the interconnection structures between opposing plates and producing a bias between the opposing plates after depositing the underfill material on the interconnection structures.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 25, 2014
    Inventors: Manish Dubey, Rajendra C. Dias, Yonghao Xiu, Arjun Krishnan, Yiqun Bai, Purushotham Kaushik Muthur Srinath
  • Patent number: 8916981
    Abstract: Epoxy-amine underfill materials for semiconductor packages and semiconductor packages having an epoxy-amine underfill material are described. In an example, a semiconductor apparatus includes a semiconductor die having a surface with an integrated circuit thereon. A semiconductor package substrate has a surface with a plurality of contact pads thereon. A plurality of conductive contacts couples the surface of the semiconductor die to the surface of the semiconductor package substrate. An epoxy-amine underfill material is disposed between the surface of the semiconductor die and the surface of the semiconductor package substrate and surrounds the plurality of conductive contacts. The epoxy-amine underfill has high adhesion and is based on a low volatility multi-functional amine species.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: December 23, 2014
    Assignee: Intel Corporation
    Inventors: Yonghao Xiu, Yiqun Bai, Nisha Ananthakrishnan, Nachiket R. Raravikar
  • Publication number: 20140332966
    Abstract: Epoxy-amine underfill materials for semiconductor packages and semiconductor packages having an epoxy-amine underfill material are described. In an example, a semiconductor apparatus includes a semiconductor die having a surface with an integrated circuit thereon. A semiconductor package substrate has a surface with a plurality of contact pads thereon. A plurality of conductive contacts couples the surface of the semiconductor die to the surface of the semiconductor package substrate. An epoxy-amine underfill material is disposed between the surface of the semiconductor die and the surface of the semiconductor package substrate and surrounds the plurality of conductive contacts. The epoxy-amine underfill has high adhesion and is based on a low volatility multi-functional amine species.
    Type: Application
    Filed: May 10, 2013
    Publication date: November 13, 2014
    Inventors: Yonghao Xiu, Yiqun Bai, Nisha Ananthakrishnan, Nachiket R. Raravikar
  • Publication number: 20140175634
    Abstract: Methods of forming a microelectronic packaging structure and associated structures formed thereby are described. Those methods and structures may include modifying an underfill material with one of a thiol adhesion promoter, an azole coupling agent, surface modified filler, and peroxide based cross-linking polymer chemistries to greatly enhance adhesion in package structures utilizing the embodiments herein.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Inventors: Yiqun Bai, Yuying Wei, Arjun Krishnan, Suriyakala Ramalingam, Yonghao Xiu, Beverly J. Canham, Sivakumar Nagarajan, Saikumar Jayaraman, Nisha Ananthakrishnan
  • Publication number: 20140177149
    Abstract: Embodiments of the present disclosure are directed to techniques and configurations for an integrated circuit (IC) package having an underfill layer with filler particles arranged in a generally random distribution pattern. In some embodiments, a generally random distribution pattern of filler particles may be obtained by reducing an electrostatic charge on one or more components of the IC package assembly, by applying a surface treatment to filler to reduce filler electrical charge, by applying an electric force against the filler particles of the underfill material in a direction opposite to a direction of gravitational force, by using an underfill material with a relatively low maximum filler particle size, and/or by snap curing the underfill layer at a relatively low temperature. Other embodiments may be described and/or claimed.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Inventors: Suriyakala Ramalingam, Manish Dubey, Hsin-Yu Li, Michelle S. Phen, Hitesh Arora, Nisha Ananthakrishnan, Yiqun Bai, Yonghao Xiu, Rajendra C. Dias
  • Patent number: 8012808
    Abstract: Some embodiments of the present invention include apparatuses and methods relating to integrated micro-channels for removing heat from 3D through silicon architectures.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: September 6, 2011
    Assignee: Intel Corporation
    Inventors: Wei Shi, Daoqiang Lu, Yiqun Bai, Qing A. Zhou, Jianqqi He
  • Publication number: 20090201643
    Abstract: Some embodiments of the present invention include apparatuses and methods relating to integrated micro-channels for removing heat from 3D through silicon architectures.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Inventors: Wei Shi, Daoqiang Lu, Yiqun Bai, Qing A. Zhou, Jianqqi He
  • Patent number: 7432592
    Abstract: Some embodiments of the present invention include apparatuses and methods relating to integrated micro-channels for removing heat from 3D through silicon architectures.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: October 7, 2008
    Assignee: Intel Corporation
    Inventors: Wei Shi, Daoqiang Lu, Yiqun Bai, Qing A. Zhou, Jiangqi He
  • Publication number: 20070085198
    Abstract: Some embodiments of the present invention include apparatuses and methods relating to integrated micro-channels for removing heat from 3D through silicon architectures.
    Type: Application
    Filed: October 13, 2005
    Publication date: April 19, 2007
    Inventors: Wei Shi, Daoqiang Lu, Yiqun Bai, Qing Zhou, Jiangqi He