Patents by Inventor David R. Greenberg

David R. Greenberg 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: 20150333051
    Abstract: An electrical contact structure distributes current along a length thereof. The electrical contact structure includes a plurality of n metal rectangles on n levels of metal. The rectangle on one metal level is at least as wide in width and vertically covers in width the rectangle on the metal level immediately below. The rectangle on one metal level is shorter in length than and substantially aligned at a first end with the rectangle on the metal level immediately below. Rectangle first ends are substantially aligned. Features of an exemplary FET transistor of this invention are a source and drain terminal electrical contact structure, a multi-level metal ring connecting gate rectangles on both ends, and a wider-than-minimum gate-to-gate spacing. The invention is useful, for example, in an electromigration-compliant, high performance transistor.
    Type: Application
    Filed: August 5, 2014
    Publication date: November 19, 2015
    Inventors: David R. Greenberg, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 9190479
    Abstract: An electrical contact structure distributes current along a length thereof. The electrical contact structure includes a plurality of n metal rectangles on n levels of metal. The rectangle on one metal level is at least as wide in width and vertically covers in width the rectangle on the metal level immediately below. The rectangle on one metal level is shorter in length than and substantially aligned at a first end with the rectangle on the metal level immediately below. Rectangle first ends are substantially aligned. Features of an exemplary FET transistor of this invention are a source and drain terminal electrical contact structure, a multi-level metal ring connecting gate rectangles on both ends, and a wider-than-minimum gate-to-gate spacing. The invention is useful, for example, in an electromigration-compliant, high performance transistor.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: November 17, 2015
    Assignee: GLOBALFOUNDRIES U.S. 2 LLC
    Inventors: David R. Greenberg, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 8877606
    Abstract: A semiconductor substrate structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer; an insulator with etch stop characteristics formed on the electrically conductive layer; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A scheme of subsequently building a dual-depth shallow trench isolation with the deeper STI in the back gate layer self-aligned to the shallower STI in the active region in such a semiconductor substrate is also disclosed.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: November 4, 2014
    Assignee: International Business Machines Corporation
    Inventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen Shi, Jeng-Bang Yau
  • Patent number: 8872279
    Abstract: An electrical contact structure distributes current along a length thereof. The electrical contact structure includes a plurality of n metal rectangles on n levels of metal. The rectangle on one metal level is at least as wide in width and vertically covers in width the rectangle on the metal level immediately below. The rectangle on one metal level is shorter in length than and substantially aligned at a first end with the rectangle on the metal level immediately below. Rectangle first ends are substantially aligned. Features of an exemplary FET transistor of this invention are a source and drain terminal electrical contact structure, a multi-level metal ring connecting gate rectangles on both ends, and a wider-than-minimum gate-to-gate spacing. The invention is useful, for example, in an electromigration-compliant, high performance transistor.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: October 28, 2014
    Assignee: International Business Machines Corporation
    Inventors: David R. Greenberg, Jean-Olivier Plouchart, Alberto Valdes-Garcia
  • Patent number: 8227865
    Abstract: A semiconductor wafer structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer, the electrically conductive layer further having one or more shallow trench isolation (STI) regions formed therein; an etch stop layer formed on the electrically conductive layer and the one or more STI regions; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A subsequent active area level STI scheme, in conjunction with front gate formation over the semiconductor layer, is also disclosed.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 24, 2012
    Assignee: International Business Machines Corporation
    Inventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen She, Jeng-Bang Yau
  • Publication number: 20120112309
    Abstract: A semiconductor substrate structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer; an insulator with etch stop characteristics formed on the electrically conductive layer; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A scheme of subsequently building a dual-depth shallow trench isolation with the deeper STI in the back gate layer self-aligned to the shallower STI in the active region in such a semiconductor substrate is also disclosed.
    Type: Application
    Filed: January 16, 2012
    Publication date: May 10, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen Shi, Jeng-Bang Yau
  • Patent number: 7767546
    Abstract: A semiconductor wafer structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer, the electrically conductive layer further having one or more shallow trench isolation (STI) regions formed therein; an etch stop layer formed on the electrically conductive layer and the one or more STI regions; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A subsequent active area level STI scheme, in conjunction with front gate formation over the semiconductor layer, is also disclosed.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: August 3, 2010
    Assignee: International Business Machines Corporation
    Inventors: Robert H. Dennard, David R. Greenberg, Amian Majumdar, Leathen Shi, Jeng-Bang Yau
  • Publication number: 20100187607
    Abstract: A semiconductor wafer structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer, the electrically conductive layer further having one or more shallow trench isolation (STI) regions formed therein; an etch stop layer formed on the electrically conductive layer and the one or more STI regions; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A subsequent active area level STI scheme, in conjunction with front gate formation over the semiconductor layer, is also disclosed.
    Type: Application
    Filed: March 31, 2010
    Publication date: July 29, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen Shi, Jeng-Bang Yau
  • Publication number: 20100176482
    Abstract: A semiconductor substrate structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer; an insulator with etch stop characteristics formed on the electrically conductive layer; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A scheme of subsequently building a dual-depth shallow trench isolation with the deeper STI in the back gate layer self-aligned to the shallower STI in the active region in such a semiconductor substrate is also disclosed.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINE CORPORATION
    Inventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen Shi, Jeng-Bang Yau
  • Publication number: 20100176453
    Abstract: A semiconductor wafer structure for manufacturing integrated circuit devices includes a bulk substrate; a lower insulating layer formed on the bulk substrate, the lower insulating layer formed from a pair of separate insulation layers having a bonding interface therebetween; an electrically conductive layer formed on the lower insulating layer, the electrically conductive layer further having one or more shallow trench isolation (STI) regions formed therein; an etch stop layer formed on the electrically conductive layer and the one or more STI regions; an upper insulating layer formed on the etch stop layer; and a semiconductor layer formed on the upper insulating layer. A subsequent active area level STI scheme, in conjunction with front gate formation over the semiconductor layer, is also disclosed.
    Type: Application
    Filed: January 12, 2009
    Publication date: July 15, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Robert H. Dennard, David R. Greenberg, Amlan Majumdar, Leathen Shi, Jeng-Bang Yau
  • Patent number: 7713829
    Abstract: A SiGe bipolar transistor containing substantially no dislocation defects present between the emitter and collector region and a method of forming the same are provided. The SiGe bipolar transistor includes a collector region of a first conductivity type; a SiGe base region formed on a portion of said collector region; and an emitter region of said first conductivity type formed over a portion of said base region, wherein said collector region and said base region include carbon continuously therein. The SiGe base region is further doped with boron.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: May 11, 2010
    Assignee: International Business Machines Corporation
    Inventors: Jack Oon Chu, Douglas Duane Coolbaugh, James Stuart Dunn, David R. Greenberg, David L. Harame, Basanth Jagannathan, Robb Allen Johnson, Louis D. Lanzerotti, Kathryn Turner Schonenberg, Ryan Wayne Wuthrich
  • Patent number: 7642569
    Abstract: A transistor having minimized parasitics is provided including an emitter having a recessed extrinsic emitter portion atop an intrinsic emitter portion; a base including an intrinsic base portion in electrical contact with the intrinsic emitter portion and an extrinsic base portion in electrical contact with the intrinsic base portion and electrically isolated from the recessed extrinsic emitter portion by a set of emitter/base spacers; and a collector in electrical contact with the intrinsic base portion. The transistor may further include extrinsic base having top surfaces entirely silicided to the emitter/base spacer. Additionally, the transistor may include a base window opening within the transistor's active area. Methods of forming the above-described transistor are also provided.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: January 5, 2010
    Assignee: International Business Machines Corporation
    Inventors: David R. Greenberg, Shwu-Jen Jeng
  • Patent number: 7615457
    Abstract: A method is provided for making a bipolar transistor which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The collector pedestal can be formed on a surface of a collector active region exposed within an opening extending through first and second overlying dielectric regions, where the opening defines vertically aligned edges of the first and second dielectric regions.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: November 10, 2009
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Publication number: 20090134429
    Abstract: A transistor having minimized parasitics is provided including an emitter having a recessed extrinsic emitter portion atop an intrinsic emitter portion; a base including an intrinsic base portion in electrical contact with the intrinsic emitter portion and an extrinsic base portion in electrical contact with the intrinsic base portion and electrically isolated from the recessed extrinsic emitter portion by a set of emitter/base spacers; and a collector in electrical contact with the intrinsic base portion. The transistor may further include extrinsic base having top surfaces entirely silicided to the emitter/base spacer. Additionally, the transistor may include a base window opening within the transistor's active area. Methods of forming the above-described transistor are also provided.
    Type: Application
    Filed: February 5, 2009
    Publication date: May 28, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: David R. Greenberg, Shwu-Jen Jeng
  • Patent number: 7491617
    Abstract: A transistor having minimized parasitics is provided including an emitter having a recessed extrinsic emitter portion atop an intrinsic emitter portion; a base including an intrinsic base portion in electrical contact with the intrinsic emitter portion and an extrinsic base portion in electrical contact with the intrinsic base portion and electrically isolated from the recessed extrinsic emitter portion by a set of emitter/base spacers; and a collector in electrical contact with the intrinsic base portion. The transistor may further include extrinsic base having top surfaces entirely silicided to the emitter/base spacer. Additionally, the transistor may include a base window opening within the transistor's active area. Methods of forming the above-described transistor are also provided.
    Type: Grant
    Filed: June 18, 2007
    Date of Patent: February 17, 2009
    Assignee: International Business Machines Corporation
    Inventors: David R. Greenberg, Shwu-Jen Jeng
  • Publication number: 20080318373
    Abstract: A method is provided for making a bipolar transistor which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The collector pedestal can be formed on a surface of a collector active region exposed within an opening extending through first and second overlying dielectric regions, where the opening defines vertically aligned edges of the first and second dielectric regions.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 25, 2008
    Applicant: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Patent number: 7425754
    Abstract: A bipolar transistor is provided which includes a tapered, i.e. frustum-shaped, collector pedestal having an upper substantially planar surface, a lower surface, and a slanted sidewall extending between the upper surface and the lower surface, the upper surface having substantially less area than the lower surface. The bipolar transistor further includes an intrinsic base overlying the upper surface of the collector pedestal, a raised extrinsic base conductively connected to the intrinsic base and an emitter overlying the intrinsic base. In a particular embodiment, the emitter is self-aligned to the collector pedestal, having a centerline which is aligned to the centerline of the collector pedestal.
    Type: Grant
    Filed: February 25, 2004
    Date of Patent: September 16, 2008
    Assignee: International Business Machines Corporation
    Inventors: Hiroyuki Akatsu, Rama Divakaruni, Gregory G. Freeman, David R. Greenberg, Marwan H. Khater, William R. Tonti
  • Publication number: 20080124881
    Abstract: A SiGe bipolar transistor containing substantially no dislocation defects present between the emitter and collector region and a method of forming the same are provided. The SiGe bipolar transistor includes a collector region of a first conductivity type; a SiGe base region formed on a portion of said collector region; and an emitter region of said first conductivity type formed over a portion of said base region, wherein said collector region and said base region include carbon continuously therein. The SiGe base region is further doped with boron.
    Type: Application
    Filed: November 22, 2006
    Publication date: May 29, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jack Ooh Chu, Douglas Duane Coolbaugh, James Stuart Dunn, David R. Greenberg, David L. Harame, Basanth Jagannathan, Robb Allen Johnson, Louis D. Lanzerotti, Kathryn Turner Schonenberg, Ryan Wayne Wuthrich
  • Patent number: 7355221
    Abstract: A field effect transistor is provided which includes a contiguous single-crystal semiconductor region in which a source region, a channel region and a drain region are disposed. The channel region has an edge in common with the source region as a source edge, and the channel region further has an edge in common with the drain region as a drain edge. A gate conductor overlies the channel region. The field effect transistor further includes a structure which applies a stress at a first magnitude to only one of the source edge and the drain edge while applying the stress at no greater than a second magnitude to another one of the source edge and the drain edge, wherein the second magnitude has a value ranging from zero to about half the first magnitude. In a particular embodiment, the stress is applied at the first magnitude to the source edge while the zero or lower magnitude stress is applied to the drain edge.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: April 8, 2008
    Assignee: International Business Machines Corporation
    Inventors: Gregory G. Freeman, Anil K. Chinthakindi, David R. Greenberg, Basanth Jagannathan, Marwan H. Khater, John Pekarik, Xudong Wang
  • Patent number: 7253070
    Abstract: A transistor having minimized parasitics is provided including an emitter having a recessed extrinsic emitter portion atop an intrinsic emitter portion; a base including an intrinsic base portion in electrical contact with the intrinsic emitter portion and an extrinsic base portion in electrical contact with the intrinsic base portion and electrically isolated from the recessed extrinsic emitter portion by a set of emitter/base spacers; and a collector in electrical contact with the intrinsic base portion. The transistor may further include extrinsic base having top surfaces entirely silicided to the emitter/base spacer. Additionally, the transistor may include a base window opening within the transistor's active area. Methods of forming the above-described transistor are also provided.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: August 7, 2007
    Assignee: International Business Machines Corporation
    Inventors: David R. Greenberg, Shwu-Jen Jeng