Patents by Inventor Darshan D. Gandhi

Darshan D. Gandhi 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: 8445377
    Abstract: A mechanically robust semiconductor structure with improved adhesion strength between a low-k dielectric layer and a dielectric-containing substrate is provided. In particular, the present invention provides a structure that includes a dielectric-containing substrate having an upper region including a treated surface layer which is chemically and physically different from the substrate; and a low-k dielectric material located on a the treated surface layer of the substrate. The treated surface layer and the low-k dielectric material form an interface that has an adhesion strength that is greater than 60% of the cohesive strength of the weaker material on either side of the interface. The treated surface is formed by treating the surface of the substrate with at least one of actinic radiation, a plasma and e-beam radiation prior to forming of the substrate the low-k dielectric material.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 21, 2013
    Assignee: International Business Machines Corporation
    Inventors: Qinghuang Lin, Terry A. Spooner, Darshan D. Gandhi, Christy S. Tyberg
  • Publication number: 20110318942
    Abstract: A mechanically robust semiconductor structure with improved adhesion strength between a low-k dielectric layer and a dielectric-containing substrate is provided. In particular, the present invention provides a structure that includes a dielectric-containing substrate having an upper region including a treated surface layer which is chemically and physically different from the substrate; and a low-k dielectric material located on a the treated surface layer of the substrate. The treated surface layer and the low-k dielectric material form an interface that has an adhesion strength that is greater than 60% of the cohesive strength of the weaker material on either side of the interface. The treated surface is formed by treating the surface of the substrate with at least one of actinic radiation, a plasma and e-beam radiation prior to forming of the substrate the low-k dielectric material.
    Type: Application
    Filed: September 9, 2011
    Publication date: December 29, 2011
    Applicant: International Business Machines Corporation
    Inventors: Qinghuang Lin, Terry A. Spooner, Darshan D. Gandhi, Christy S. Tyberg
  • Patent number: 8017522
    Abstract: A mechanically robust semiconductor structure with improved adhesion strength between a low-k dielectric layer and a dielectric-containing substrate is provided. In particular, the present invention provides a structure that includes a dielectric-containing substrate having an upper region including a treated surface layer which is chemically and physically different from the substrate; and a low-k dielectric material located on a the treated surface layer of the substrate. The treated surface layer and the low-k dielectric material form an interface that has an adhesion strength that is greater than 60% of the cohesive strength of the weaker material on either side of the interface. The treated surface is formed by treating the surface of the substrate with at least one of actinic radiation, a plasma and e-beam radiation prior to forming of the substrate the low-k dielectric material.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: September 13, 2011
    Assignee: International Business Machines Corporation
    Inventors: Qinghuang Lin, Terry A. Spooner, Darshan D. Gandhi, Christy S. Tyberg
  • Publication number: 20100159236
    Abstract: An article includes a first surface, a second surface, and a molecular nanolayer located at an interface between the first and the second surface, where an interface toughness is a higher than 20 J m?2.
    Type: Application
    Filed: November 21, 2007
    Publication date: June 24, 2010
    Inventors: Ramanath Ganapathiraman, Darshan D. Gandhi
  • Publication number: 20090294925
    Abstract: A mechanically robust semiconductor structure with improved adhesion strength between a low-k dielectric layer and a dielectric-containing substrate is provided. In particular, the present invention provides a structure that includes a dielectric-containing substrate having an upper region including a treated surface layer which is chemically and physically different from the substrate; and a low-k dielectric material located on a the treated surface layer of the substrate. The treated surface layer and the low-k dielectric material form an interface that has an adhesion strength that is greater than 60% of the cohesive strength of the weaker material on either side of the interface. The treated surface is formed by treating the surface of the substrate with at least one of actinic radiation, a plasma and e-beam radiation prior to forming of the substrate the low-k dielectric material.
    Type: Application
    Filed: August 8, 2009
    Publication date: December 3, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qinghuang Lin, Terry A. Spooner, Darshan D. Gandhi, Christy S. Tyberg
  • Publication number: 20080173984
    Abstract: A mechanically robust semiconductor structure with improved adhesion strength between a low-k dielectric layer and a dielectric-containing substrate is provided. In particular, the present invention provides a structure that includes a dielectric-containing substrate having an upper region including a treated surface layer which is chemically and physically different from the substrate; and a low-k dielectric material located on a the treated surface layer of the substrate. The treated surface layer and the low-k dielectric material form an interface that has an adhesion strength that is greater than 60% of the cohesive strength of the weaker material on either side of the interface. The treated surface is formed by treating the surface of the substrate with at least one of actinic radiation, a plasma and e-beam radiation prior to forming of the substrate the low-k dielectric material.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 24, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Qinghuang Lin, Terry A. Spooner, Darshan D. Gandhi, Christy S. Tyberg