Patents by Inventor Rajiv Dunne

Rajiv Dunne 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: 9373572
    Abstract: A packaged semiconductor device including a leadframe and a plurality of angularly shaped capacitors. The leadframe includes structures with surfaces and sidewalls. The angularly shaped capacitors are attached to surface portions of the leadframe structures. The angularly shaped capacitors have sidewalls coplanar with structure sidewalls. The angularly shaped capacitors includes a conductive material attached to the structure surface. The conductive material having pores covered by oxide and filled with conductive polymer. The angularly shaped capacitors topped by electrodes are made of a second metal.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: June 21, 2016
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Gregory E. Howard, Bernardo Gallegos, Rajiv Dunne, Darvin R. Edwards, Siva P. Gurrum, Manu J. Prakuzhy, Donald C. Abbott
  • Publication number: 20160035655
    Abstract: A packaged semiconductor device including a leadframe and a plurality of angularly shaped capacitors. The leadframe includes structures with surfaces and sidewalls. The angularly shaped capacitors are attached to surface portions of the leadframe structures. The angularly shaped capacitors have sidewalls coplanar with structure sidewalls. The angularly shaped capacitors includes a conductive material attached to the structure surface. The conductive material having pores covered by oxide and filled with conductive polymer. The angularly shaped capacitors topped by electrodes are made of a second metal.
    Type: Application
    Filed: October 9, 2015
    Publication date: February 4, 2016
    Inventors: Gregory E. Howard, Bernardo Gallegos, Rajiv Dunne, Darvin R. Edwards, Siva P. Gurrum, Manu J. Prakuzhy, Donald C. Abbott
  • Patent number: 9165873
    Abstract: A packaged semiconductor device including a leadframe made of a first metal, the leadframe including structures with surfaces and sidewalls; capacitors attached to surface portions of the leadframe structures, the capacitors having sidewalls coplanar with structure sidewalls; the capacitors including a foil of conductive material attached to the structure surface, the conductive material having pores covered by oxide and filled with conductive polymer, the capacitors topped by electrodes made of a second metal.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: October 20, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Gregory E. Howard, Bernardo Gallegos, Rajiv Dunne, Darvin R. Edwards, Siva P. Gurrum, Manu J. Prakuzhy, Donald C. Abbott
  • Patent number: 9142496
    Abstract: A method for fabricating a packaged semiconductor device begins by placing a first mask on a foil of porous conductive material bonded on a strip of a first metal. The surface of the conductive material and the inside of the pores are oxidized. The first mask leaves areas unprotected. The pores of the unprotected areas are filled with a conductive polymeric compound. A layer of a second metal is deposited on the conductive polymeric compound in the unprotected areas. The first mask is removed to expose un-oxidized conductive material. The foil thickness of the un-oxidized conductive material is removed to expose the underlying first metal. This creates sidewalls of the foil and leaves un-removed the capacitor areas covered by the second metal. A second mask is placed on the strip, the second mask defines a plurality of leadframes having chip pads and leads, and protecting the capacitor areas. The portions of the first metal exposed by the second mask are removed.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: September 22, 2015
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Gregory E. Howard, Bernardo Gallegos, Rajiv Dunne, Darvin R. Edwards, Siva P. Gurrum, Manu J. Prakuzhy, Donald C. Abbott
  • Patent number: 9030216
    Abstract: Various exemplary embodiments provide probes, systems and methods for measuring an effective electrical resistance/resistivity with high sensitivity. In one embodiment, the measuring system can include an upper probe set and a similar lower probe set having a sample device sandwiched there-between. The device-under-test (DUT) samples can be sandwiched between two conductors of the sample device. Each probe set can have an inner voltage sense probe coaxially configured inside an electrically-isolated outer current source probe that has a large contact area with the sample device. The measuring system can also include a computer readable medium for storing circuit simulations including such as FEM simulations for extracting a bulk through-plane electrical resistivity and an interface resistivity for an effective electrical z-resistivity of the DUT, in some cases, having sub-micro-ohm resistance.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: May 12, 2015
    Assignee: Texas Instruments Incorporated
    Inventors: Michael Anthony Lamson, Siva Prakash Gurrum, Rajiv Dunne
  • Patent number: 8883567
    Abstract: A method of making a stacked semiconductor package having at least a leadframe, a first die mounted above and soldered to the lead frame and a first clip mounted above and soldered to the first die. The method includes positioning the leadframe, first die and first clip in a vertically stacked relationship and nonsolderingly locking the first clip in laterally nondisplaceble relationship with the leadframe. A stacked semiconductor package and an intermediate product produced in making a stacked semiconductor package are also disclosed.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: November 11, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Michael Todd Wyant, Patricia Sabran Conde, Vikas Gupta, Rajiv Dunne, Emerson Mamaril Enipin
  • Publication number: 20130256852
    Abstract: A method of making a stacked semiconductor package having at least a leadframe, a first die mounted above and soldered to the lead frame and a first clip mounted above and soldered to the first die. The method includes positioning the leadframe, first die and first clip in a vertically stacked relationship and nonsolderingly locking the first clip in laterally nondisplaceble relationship with the leadframe. A stacked semiconductor package and an intermediate product produced in making a stacked semiconductor package are also disclosed.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Michael Todd Wyant, Patricia Sabran Conde, Vikas Gupta, Rajiv Dunne, Emerson Mamaril Enipin
  • Patent number: 8436475
    Abstract: A semiconductor device includes an integrated circuit (IC) die including a substrate, and a plurality of through substrate via (TSV) that extends through the substrate to a protruding integral tip and which is partially covered with a dielectric liner and partially exposed from the dielectric liner. A metal layer is on the bottom surface of the IC die physically connecting the plurality of TSVs and physically and electrically connected to connecting the first metal protruding tips of TSVs.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: May 7, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Rajiv Dunne, Gary P. Morrison, Satyendra S. Chauhan, Masood Murtuza, Thomas D. Bonifield
  • Patent number: 8431481
    Abstract: A method of forming a semiconductor device includes an integrated circuit (IC) die which is provided with a substrate with surfaces. At least one through substrate via (TSV) is formed through the substrate to a protruding integral tip that includes sidewalls and a distal end. A metal layer is formed on the bottom surface of the IC die, and the sidewalls and the distal end of the protruding integral tips. Completing fabrication of at least one functional circuit including at least one ground pad on the top surface of the semiconductor, wherein the ground pad is coupled to said TSV.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: April 30, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Rajiv Dunne, Gary P. Morrison, Satyendra S. Chauhan, Masood Murtuza, Thomas D. Bonifield
  • Patent number: 8313982
    Abstract: A method of through substrate via (TSV) die assembly includes positioning a plurality of TSV die with their topside facing down onto a curable bonding adhesive layer on a carrier. The plurality of TSV die include contactable TSVs that include or are coupled to bondable bottomside features protruding from its bottomside. The curable bonding adhesive layer is cured after the positioning. A plurality of second IC die each having a plurality of second bonding features are bonded onto the plurality of TSV die to form a plurality of stacked die assemblies on the carrier. Debonding after the bonding separates the carrier from the plurality of stacked die assemblies. The plurality of stacked die assemblies are then singulated to form a plurality of singulated stacked die assemblies.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: November 20, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Rajiv Dunne, Margaret Rose Simmons-Matthews
  • Publication number: 20120202321
    Abstract: A method of forming a semiconductor device includes an integrated circuit (IC) die which is provided with a substrate with surfaces. At least one through substrate via (TSV) is formed through the substrate to a protruding integral tip that includes sidewalls and a distal end. A metal layer is formed on the bottom surface of the IC die, and the sidewalls and the distal end of the protruding integral tips. Completing fabrication of at least one functional circuit including at least one ground pad on the top surface of the semiconductor, wherein the ground pad is coupled to said TSV.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 9, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rajiv Dunne, Gary P. Morrison, Satyendra S. Chauhan, Masood Murtuza, Thomas D. Bonifield
  • Publication number: 20120193814
    Abstract: A semiconductor device includes an integrated circuit (IC) die including a substrate, and a plurality of through substrate via (TSV) that extends through the substrate to a protruding integral tip and which is partially covered with a dielectric liner and partially exposed from the dielectric liner. A metal layer is on the bottom surface of the IC die die physically connecting the plurality of TSVs and physically and electrically connected to connecting the first metal protruding tips of TSVs.
    Type: Application
    Filed: April 11, 2012
    Publication date: August 2, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rajiv Dunne, Gary P. Morrison, Satyendra S. Chauhan, Masood Murtuza, Thomas D. Bonifield
  • Publication number: 20120194208
    Abstract: Various exemplary embodiments provide probes, systems and methods for measuring an effective electrical resistance/resistivity with high sensitivity. In one embodiment, the measuring system can include an upper probe set and a similar lower probe set having a sample device sandwiched there-between. The device-under-test (DUT) samples can be sandwiched between two conductors of the sample device. Each probe set can have an inner voltage sense probe coaxially configured inside an electrically-isolated outer current source probe that has a large contact area with the sample device. The measuring system can also include a computer readable medium for storing circuit simulations including such as FEM simulations for extracting a bulk through-plane electrical resistivity and an interface resistivity for an effective electrical z-resistivity of the DUT, in some cases, having sub-micro-ohm resistance.
    Type: Application
    Filed: April 10, 2012
    Publication date: August 2, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Michael Anthony Lamson, Siva Prakash Gurrum, Rajiv Dunne
  • Patent number: 8178976
    Abstract: A semiconductor device includes an integrated circuit (IC) die including a substrate, and at least one through substrate via (TSV) that extends through the substrate to a protruding integral tip that includes sidewalls and a distal end. The protruding integral tip has a tip height between 1 and 50 ?m. A metal layer is on the bottom surface of the IC die, and the sidewalls and the distal end of the protruding integral tips. A semiconductor device can include an IC die that includes TSVs and a package substrate such as a lead-frame, where the IC die includes a metal layer and an electrically conductive die attach adhesive layer, such as a solder filled polymer wherein the solder is arranged in an electrically interconnected network, between the metal layer and the die pad of the lead-frame.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: May 15, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Rajiv Dunne, Gary P. Morrison, Satyendra S. Chauhan, Masood Murtuza, Thomas D. Bonifield
  • Patent number: 8174276
    Abstract: Various exemplary embodiments provide probes, systems and methods for measuring an effective electrical resistance/resistivity with high sensitivity. In one embodiment, the measuring system can include an upper probe set and a similar lower probe set having a sample device sandwiched there-between. The device-under-test (DUT) samples can be sandwiched between two conductors of the sample device. Each probe set can have an inner voltage sense probe coaxially configured inside an electrically-isolated outer current source probe that has a large contact area with the sample device. The measuring system can also include a computer readable medium for storing circuit simulations including such as FEM simulations for extracting a bulk through-plane electrical resistivity and an interface resistivity for an effective electrical z-resistivity of the DUT, in some cases, having sub-micro-ohm resistance.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: May 8, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Michael Anthony Lamson, Siva Prakash Gurrum, Rajiv Dunne
  • Patent number: 8154134
    Abstract: A packaged electronic device includes a leadframe including a die pad, a first, second, and third lead pin surrounding the die pad. An IC die is assembled in a face-up configuration on the lead frame. The IC die includes a substrate having an active top surface and a bottom surface, wherein the top surface includes integrated circuitry including an input pad, an output pad, a power supply pad, and a ground pad, and a plurality of through-substrate vias (TSVs) including an electrically conductive filler material and a dielectric liner. The TSVs couple the input pad to the first lead pin, the output pad to the second lead pin, the power supply pad to a third lead pin or a portion of the die pad. A fourth TSV couples pads coupled to the ground node to the die pad or a portion of the die pad for a split die pad.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: April 10, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Thomas D. Bonifield, Gary P. Morrison, Rajiv Dunne, Satyendra S. Chauhan, Masood Murtuza
  • Publication number: 20120070939
    Abstract: A method of through substrate via (TSV) die assembly includes positioning a plurality of TSV die with their topside facing down onto a curable bonding adhesive layer on a carrier. The plurality of TSV die include contactable TSVs that include or are coupled to bondable bottomside features protruding from its bottomside. The curable bonding adhesive layer is cured after the positioning. A plurality of second IC die each having a plurality of second bonding features are bonded onto the plurality of TSV die to form a plurality of stacked die assemblies on the carrier. Debonding after the bonding separates the carrier from the plurality of stacked die assemblies. The plurality of stacked die assemblies are then singulated to form a plurality of singulated stacked die assemblies.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 22, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rajiv Dunne, Margaret Rose Simmons-Matthews
  • Patent number: 8017439
    Abstract: A method of forming stacked electronic articles using a through substrate via (TSV) wafer includes mounting a first carrier wafer to a top side of the TSV wafer using a first adhesive material that has a first debonding temperature. The TSV wafer is thinned from a bottom side of the TSV wafer to form a thinned TSV wafer. A second carrier wafer is mounted to the bottom side of the TSV wafer using a second adhesive material that has a second debonding temperature that is higher as compared to the first debonding temperature. The thinned TSV wafer is heated to a temperature above the first debonding temperature to remove the first carrier wafer from the thinned TSV wafer. At least one singulated IC die is bonded to TSV die formed on the top surface of the thinned TSV wafer to form the stacked electronic article.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: September 13, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Yoshimi Takahashi, Masood Murtuza, Rajiv Dunne, Satyendra Singh Chauhan
  • Publication number: 20110183464
    Abstract: A method of forming stacked electronic articles using a through substrate via (TSV) wafer includes mounting a first carrier wafer to a top side of the TSV wafer using a first adhesive material that has a first debonding temperature. The TSV wafer is thinned from a bottom side of the TSV wafer to form a thinned TSV wafer. A second carrier wafer is mounted to the bottom side of the TSV wafer using a second adhesive material that has a second debonding temperature that is higher as compared to the first debonding temperature. The thinned TSV wafer is heated to a temperature above the first debonding temperature to remove the first carrier wafer from the thinned TSV wafer. At least one singulated IC die is bonded to TSV die formed on the top surface of the thinned TSV wafer to form the stacked electronic article.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 28, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Yoshimi Takahashi, Masood Murtuza, Rajiv Dunne, Satyendra Singh Chauhan
  • Patent number: 7915080
    Abstract: A method for bonding IC die to TSV wafers includes bonding at least one singulated IC die to respective ones of a plurality of IC die on a TSV wafer that includes a top semiconductor surface and TSV precursors including embedded TSV tips to form a die-wafer stack. The die-wafer stack is thinned beginning from the bottom surface of the TSV wafer to form a thinned die-wafer stack. The thinning includes exposing the embedded TSV tips to provide electrical access thereto from the bottom surface of the TSV wafer. The thinned die-wafer stack can be singulated to form a plurality of thinned die stacks.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: March 29, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Yoshimi Takahashi, Masood Murtuza, Rajiv Dunne, Satyendra Chauhan