Patents by Inventor Mahesh Sanganeria

Mahesh Sanganeria 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: 7705431
    Abstract: A method of improving adhesion between layers in the formation of a semiconductor device and integrated circuit, and the resultant intermediate semiconductor structure, which include a substrate layer with a low k insulating layer thereover. The low k insulating layer includes a treated surface area of adsorbed gaseous particles. This treated surface area is formed by flowing a gas, preferably, silane, disilane, dichlorosilane, germane or combinations thereof, over a surface of the heated low k insulating layer for adsorption of such gaseous particles onto the heated surface, wherein the insulating layer maintains its original thickness. A capping layer is then deposited directly over the insulating layer wherein the treated surface area of the insulating layer significantly improves adhesion between the insulating layers and the capping layers to prevent delamination therebetween during subsequent processing steps of forming the integrated circuit.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: April 27, 2010
    Assignee: Novellius Systems, Inc.
    Inventors: Mahesh Sanganeria, Bart van Schravendijk
  • Patent number: 7622380
    Abstract: A method of improving adhesion between layers in the formation of a semiconductor device and integrated circuit, and the resultant intermediate semiconductor structure, which include a substrate layer with a low k insulating layer thereover. The low k insulating layer includes a treated surface area of adsorbed gaseous particles. This treated surface area is formed by flowing a gas, preferably, silane, disilane, dichlorosilane, germane or combinations thereof, over a surface of the heated low k insulating layer for adsorption of such gaseous particles onto the heated surface, wherein the insulating layer maintains its original thickness. A capping layer is then deposited directly over the insulating layer wherein the treated surface area of the insulating layer significantly improves adhesion between the insulating layers and the capping layers to prevent delamination therebetween during subsequent processing steps of forming the integrated circuit.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: November 24, 2009
    Assignee: Novellus Systems, Inc.
    Inventors: Mahesh Sanganeria, Bart van Schravendijk
  • Patent number: 6972252
    Abstract: A method of improving adhesion between layers in the formation of a semiconductor device and integrated circuit, and the resultant intermediate semiconductor structure, which include a substrate layer with a low k insulating layer thereover. The low k insulating layer includes a treated surface area of adsorbed gaseous particles. This treated surface area is formed by flowing a gas, preferably, silane, disilane, dichlorosilane, germane or combinations thereof, over a surface of the heated low k insulating layer for adsorption of such gaseous particles onto the heated surface, wherein the insulating layer maintains its original thickness. A capping layer is then deposited directly over the insulating layer wherein the treated surface area of the insulating layer significantly improves adhesion between the insulating layers and the capping layers to prevent delamination therebetween during subsequent processing steps of forming the integrated circuit.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: December 6, 2005
    Assignee: Novellus Systems, Inc.
    Inventors: Mahesh Sanganeria, Bart van Schravendijk