Patents by Inventor Sujit Sharan

Sujit Sharan 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: 20130341076
    Abstract: A layer or layers for use in package substrates and die spacers are described. The layer or layers include a plurality of ceramic wells lying within a plane and separated by metallic vias. Recesses within the ceramic wells are occupied by a dielectric filler material.
    Type: Application
    Filed: August 22, 2013
    Publication date: December 26, 2013
    Inventors: Aleksandar Aleksov, Vladimir Noveski, Sujit Sharan, Shankar Ganapathysubramanian
  • Patent number: 8604353
    Abstract: A layer or layers for use in package substrates and die spacers are described. The layer or layers include a plurality of ceramic wells lying within a plane and separated by metallic vias. Recesses within the ceramic wells are occupied by a dielectric filler material.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: December 10, 2013
    Assignee: Intel Corporation
    Inventors: Aleksandar Aleksov, Vladimir Noveski, Sujit Sharan, Shankar Ganapathysubramanian
  • Publication number: 20120261838
    Abstract: A multi-chip package includes a substrate (110) having a first side (111), an opposing second side (112), and a third side (213) that extends from the first side to the second side, a first die (120) attached to the first side of the substrate and a second die (130) attached to the first side of the substrate, and a bridge (140) adjacent to the third side of the substrate and attached to the first die and to the second die. No portion of the substrate is underneath the bridge. The bridge creates a connection between the first die and the second die. Alternatively, the bridge may be disposed in a cavity (615, 915) in the substrate or between the substrate and a die layer (750). The bridge may constitute an active die and may be attached to the substrate using wirebonds (241, 841, 1141, 1541).
    Type: Application
    Filed: June 25, 2012
    Publication date: October 18, 2012
    Inventors: Henning Braunisch, Chia-Pin Chiu, Aleksandar Aleksov, Hinmeng Au, Stefanie M. Lotz, Johanna M. Swan, Sujit Sharan
  • Patent number: 8227904
    Abstract: A multi-chip package includes a substrate (110) having a first side (111), an opposing second side (112), and a third side (213) that extends from the first side to the second side, a first die (120) attached to the first side of the substrate and a second die (130) attached to the first side of the substrate, and a bridge (140) adjacent to the third side of the substrate and attached to the first die and to the second die. No portion of the substrate is underneath the bridge. The bridge creates a connection between the first die and the second die. Alternatively, the bridge may be disposed in a cavity (615, 915) in the substrate or between the substrate and a die layer (750). The bridge may constitute an active die and may be attached to the substrate using wirebonds (241, 841, 1141, 1541).
    Type: Grant
    Filed: June 24, 2009
    Date of Patent: July 24, 2012
    Assignee: Intel Corporation
    Inventors: Henning Braunisch, Chia-Pin Chiu, Aleksandar Aleksov, Hinmeng Au, Stefanie M. Lotz, Johanna M. Swan, Sujit Sharan
  • Publication number: 20120152601
    Abstract: A layer or layers for use in package substrates and die spacers are described. The layer or layers include a plurality of ceramic wells lying within a plane and separated by metallic vias. Recesses within the ceramic wells are occupied by a dielectric filler material.
    Type: Application
    Filed: January 19, 2012
    Publication date: June 21, 2012
    Inventors: Aleksandar Aleksov, Vladimir Noveski, Sujit Sharan, Shankar Ganapathysubramanian
  • Patent number: 8186051
    Abstract: Methods for fabricating a layer or layers for use in package substrates and die spacers are described. In one implementation the layer or layers are fabricated to include a plurality of ceramic wells lying within a plane and separated by metallic via with recesses within the ceramic wells being occupied by a dielectric filler material.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: May 29, 2012
    Assignee: Intel Corporation
    Inventors: Aleksandar Aleksov, Vladimir Noveski, Sujit Sharan, Shankar Ganapathysubramanian
  • Publication number: 20110122592
    Abstract: A column is coupled to a last metallization of a die and the column is mated to a mounting substrate with that aid of a solder. The column may have the solder attached thereto before mating to the mounting substrate and the mounting substrate may be a bare-board (no solder mask) during the mating process. The column has an aspect ratio between 0.75 and 10.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Inventors: Sanka Ganesan, Richard J. Harries, Sujit Sharan
  • Publication number: 20100327424
    Abstract: A multi-chip package includes a substrate (110) having a first side (111), an opposing second side (112), and a third side (213) that extends from the first side to the second side, a first die (120) attached to the first side of the substrate and a second die (130) attached to the first side of the substrate, and a bridge (140) adjacent to the third side of the substrate and attached to the first die and to the second die. No portion of the substrate is underneath the bridge. The bridge creates a connection between the first die and the second die. Alternatively, the bridge may be disposed in a cavity (615, 915) in the substrate or between the substrate and a die layer (750). The bridge may constitute an active die and may be attached to the substrate using wirebonds (241, 841, 1141, 1541).
    Type: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Inventors: Henning Braunisch, Chia-Pin Chiu, Aleksandar Aleksov, Hinmeng Au, Stefanie M. Lotz, Johanna M. Swan, Sujit Sharan
  • Patent number: 7656035
    Abstract: In one embodiment, the invention provides a method comprising fabricating a die bump on a die, the die bump being shaped and dimensioned to at least reduce the flow of solder material used, to attach the die bump to a package substrate, towards an under bump metallurgy (UBM) layer located below the die bump. Advantageously, the method may comprise performing a substrate reflow operation to attach the package substrate to the die bump, without performing a separate wafer reflow operation to reflow the die bump.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: February 2, 2010
    Assignee: Intel Corporation
    Inventors: Sairam Agraharam, Carlton Hanna, Dongming He, Vasudeva Atluri, Debendra Mallik, Matthew Escobido, Sujit Sharan
  • Patent number: 7625641
    Abstract: A method of forming a crystalline phase material includes: providing stress inducing material within or operatively adjacent a material of a first crystalline phase; and annealing under conditions effective to transform the material to a second crystalline phase. The stress inducing material preferably induces compressive stress during the anneal to lower the activation energy to produce a more dense second crystalline phase. Example compressive stress inducing materials are SiO2, Si3N4, Ge, W and Co. Where the compressive stress inducing material is provided on the same side of a wafer as the crystalline phase material, it is provided to have a thermal coefficient of expansion which is less than that of the first phase crystalline material. Where the compressive stress inducing material is provided on the opposite side of a wafer, it is provided to have a thermal coefficient of expansion which is greater than that of the first phase crystalline material.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: December 1, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Sujit Sharan
  • Publication number: 20090242247
    Abstract: A layer or layers for use in package substrates and die spacers are described. The layer or layers include a plurality of ceramic wells lying within a plane and separated by metallic vias. Recesses within the ceramic wells are occupied by a dielectric filler material.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 1, 2009
    Inventors: Aleksandar Aleksov, Vladimir Noveski, Sujit Sharan, Shankar Ganapathysubramanian
  • Publication number: 20090115057
    Abstract: In one embodiment, the invention provides a method comprising fabricating a die bump on a die, the die bump being shaped and dimensioned to at least reduce the flow of solder material used, to attach the die bump to a package substrate, towards an under bump metallurgy (UBM) layer located below the die bump. Advantageously, the method may comprise performing a substrate reflow operation to attach the package substrate to the die bump, without performing a separate wafer reflow operation to reflow the die bump.
    Type: Application
    Filed: January 9, 2009
    Publication date: May 7, 2009
    Inventors: Sairam Agraharam, Carlton Hanna, Dongming He, Vasudeva Atluri, Debendra Mallik, Matthew Escobido, Sujit Sharan
  • Patent number: 7527722
    Abstract: The present invention discloses an apparatus having a platen; a polishing pad disposed over the platen; a slurry dispenser disposed over the polishing pad; a cathode connected electrically to the polishing pad; a wafer carrier disposed over the polishing pad; an anode connected electrically to the wafer carrier; and a power supply connected to the anode and the cathode. The present invention further discloses a method to remove a surface layer from a wafer using a polishing pad, a slurry, and an electrical current.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 5, 2009
    Assignee: Intel Corporation
    Inventor: Sujit Sharan
  • Patent number: 7517787
    Abstract: In one embodiment, the invention provides a method comprising fabricating a die bump on a die, the die bump being shaped and dimensioned to at least reduce the flow of solder material used, to attach the die bump to a package substrate, towards an under bump metallurgy (UBM) layer located below the die bump. Advantageously, the method may comprise performing a substrate reflow operation to attach the package substrate to the die bump, without performing a separate wafer reflow operation to reflow the die bump.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: April 14, 2009
    Assignee: Intel Corporation
    Inventors: Sairam Agraharam, Carlton Hanna, Dongming He, Vasudeva Atluri, Debendra Mallik, Matthew Escobido, Sujit Sharan
  • Patent number: 7468104
    Abstract: A chemical vapor deposition apparatus includes a deposition chamber defined at least in part by at least one of a chamber sidewall and a chamber base wall. A substrate holder is received within the chamber. At least one process chemical inlet to the deposition chamber is included. At least one of the chamber sidewall and chamber base wall includes a chamber surface having a plurality of purge gas inlets to the chamber therein. The purge gas inlets are separate from the at least one process chemical inlet. A purge gas inlet passageway is provided in fluid communication with the purge gas inlets. Further implementations, including deposition method implementations, are contemplated.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: December 23, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Allen P. Mardian, Philip H. Campbell, Craig M. Carpenter, Randy W. Mercil, Sujit Sharan
  • Publication number: 20080237844
    Abstract: A microelectronic package includes a package substrate (110, 310, 410), a plurality of dies (120, 610, 630) arranged in a stack (150, 350, 450) above the package substrate, with a first die (121) located above the package substrate at a bottom (151) of the stack and an uppermost die (122) located at a top (152) of the stack, and a plurality of heat spreaders (130, 330, 430, 620) stacked above the first die, with a first heat spreader (131) located above the uppermost die. One of the plurality of heat spreaders is located between each pair of adjacent dies. Each one of the plurality of heat spreaders has an extending portion (132) that extends laterally beyond an edge (123) of an adjacent die, and at least one of the plurality of heat spreaders both provides electrical interconnectivity and thermal conductivity.
    Type: Application
    Filed: March 28, 2007
    Publication date: October 2, 2008
    Inventors: Aleksandar Aleksov, Vladimir Noveski, Sujit Sharan
  • Publication number: 20080237718
    Abstract: Methods and associated structures of forming a microelectronic device are described. Those methods may include forming a first HOD layer on a first side of a first silicon substrate, forming a CMOS region on a second side of the silicon substrate, forming amorphous silicon on the CMOS region, recrystallizing the amorphous silicon to form a first single crystal silicon layer, and forming a second HOD layer on the first single crystal silicon layer.
    Type: Application
    Filed: March 30, 2007
    Publication date: October 2, 2008
    Inventors: Vladimir Noveski, Sujit Sharan, Aleksandar Aleksov
  • Patent number: 7402512
    Abstract: A high aspect ratio contact structure formed over a junction region in a silicon substrate comprises a titanium interspersed with titanium silicide layer that is deposited in the contact opening and directly contacts an upper surface of the substrate. Silicon-doping of CVD titanium, from the addition of SiH4 during deposition, reduces consumption of substrate silicon during the subsequent silicidation reaction in which the titanium reacts with silicon to form a titanium silicide layer that provides low resistance electrical contacts between the junction region and the silicon substrate. The contact structure further comprises a titanium nitride contact fill that is deposited in the contact opening and fills substantially the entire contact opening.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: July 22, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Ammar Derraa, Sujit Sharan, Paul Castrovillo
  • Patent number: 7341931
    Abstract: Contact areas comprising doped semiconductor material at the bottom of contact holes are cleaned in a hot hydrogen plasma and exposed in situ during and/or separately from the hot hydrogen clean to a plasma containing the same dopant species as in the semiconductor material so as to partially, completely, or more than completely offset any loss of dopant due to the hot hydrogen clean. A protective conductive layer such as a metal silicide is then formed over the contact area in situ. The resulting integrated circuit has contacts with interfaces such as a silicide interfaces to contact areas having a particularly favorable dopant profile and concentration adjacent the silicide interfaces.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: March 11, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Sujit Sharan, Gurtej S. Sandhu
  • Patent number: 7268078
    Abstract: A process for depositing titanium metal layers via chemical vapor deposition is disclosed. The process provides deposited titanium layers having a high degree of conformality, even in trenches and contact openings having aspect ratios greater than 1:5.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: September 11, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Ravi Iyer, Sujit Sharan