Patents by Inventor Lars W. Liebmann

Lars W. Liebmann 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: 20190109045
    Abstract: One illustrative method disclosed herein may include forming a contact etching structure in a layer of insulating material positioned above first and second lower conductive structures, wherein at least a portion of the contact etching structure is positioned laterally between the first and second lower conductive structures, forming a first conductive line and a first conductive contact adjacent a first side of the contact etching structure and forming a second conductive line and a second conductive contact adjacent a second side of the contact etching structure, wherein a spacing between the first and second conductive lines is approximately equal to a dimension of the contact etching structure.
    Type: Application
    Filed: October 10, 2017
    Publication date: April 11, 2019
    Inventors: Ruilong Xie, Lars W. Liebmann, Daniel Chanemougame, Chanro Park
  • Patent number: 10236215
    Abstract: One illustrative method disclosed includes, among other things, forming an initial gate-to-source/drain (GSD) contact structure and an initial CB gate contact structure, wherein an upper surface of each of these contact structures are positioned at a first level. In one example, this method also includes forming a masking layer that covers the initial CB gate contact structure and exposes the initial GSD contact structure and, with the masking layer in position, performing a recess etching process on the initial GSD contact structure so as to form a recessed GSD contact structure, wherein a recessed upper surface of the recessed GSD contact structure is positioned at a second level that is below the first level.
    Type: Grant
    Filed: October 24, 2017
    Date of Patent: March 19, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Ruilong Xie, Youngtag Woo, Daniel Chanemougame, Bipul C. Paul, Lars W. Liebmann, Heimanu Niebojewski, Xuelian Zhu, Lei Sun, Hui Zang
  • Patent number: 10204994
    Abstract: One illustrative device disclosed herein includes, among other things, a stepped conductive source/drain structure with a first recess defined therein and a stepped final gate structure with a second recess defined therein, wherein, when viewed from above, the second recess is axially and laterally offset from the first recess. In this example, the device also includes a layer of insulating material positioned above the stepped conductive source/drain structure and the stepped final gate structure, a conductive gate (CB) contact that is conductively coupled to the stepped final gate structure and a conductive source/drain (CA) contact that is conductively coupled to the stepped conductive source/drain structure.
    Type: Grant
    Filed: April 3, 2017
    Date of Patent: February 12, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Ruilong Xie, Chanro Park, Andre P. Labonte, Lars W. Liebmann, Nigel G. Cave, Mark V. Raymond, Guillaume Bouche, David E. Brown
  • Publication number: 20190035692
    Abstract: A method includes forming a first gate structure above a first region of a semiconducting substrate. A first sidewall spacer is formed adjacent the first gate structure. The first gate structure and the first sidewall spacer are recessed to define a first gate contact cavity. A second sidewall spacer is formed in the first gate contact cavity. A first conductive gate contact is formed in the first gate contact cavity. The second sidewall spacer is removed to define a first spacer cavity. A conductive material is formed in the first spacer cavity to form a first conductive spacer contacting the first conductive gate contact.
    Type: Application
    Filed: July 25, 2017
    Publication date: January 31, 2019
    Inventors: Ruilong Xie, Lars W. Liebmann, Bipul C. Paul, Daniel Chanemougame, Nigel G. Cave
  • Publication number: 20180374932
    Abstract: A gate tie-down structure includes a gate structure including a gate conductor and gate spacers and inner spacers formed on the gate spacers. Trench contacts are formed on sides of the gate structure. An interlevel dielectric (ILD) has a thickness formed over the gate structure. A horizontal connection is formed within the thickness of the ILD over an active area connecting the gate conductor and one of the trench contacts over one of the inner spacers.
    Type: Application
    Filed: September 4, 2018
    Publication date: December 27, 2018
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Patent number: 10128352
    Abstract: A gate tie-down structure includes a gate structure including a gate conductor and gate spacers and inner spacers formed on the gate spacers. Trench contacts are formed on sides of the gate structure. An interlevel dielectric (ILD) has a thickness formed over the gate structure. A horizontal connection is formed within the thickness of the ILD over an active area connecting the gate conductor and one of the trench contacts over one of the inner spacers.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: November 13, 2018
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, GLOBALFOUNDRIES INC.
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Publication number: 20180315822
    Abstract: One method includes forming a gate above a semiconductor substrate, the gate comprising a gate structure and a gate cap positioned above the gate structure, forming a conductive source/drain metallization structure adjacent the gate in each of the source/drain regions and forming a recess in each of the conductive source/drain metallization structures. The method further includes forming a spacer structure that comprises recess filling portions that substantially fill the recesses and a portion that extends across the gate cap, wherein a portion of the gate cap is exposed within the spacer structure, forming an insulating material within the spacer structure and on the exposed portion of the gate cap, forming a gate contact opening that exposes a portion of an upper surface of the gate structure and forming a conductive gate contact structure (CB) in the conductive gate contact opening.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Inventors: Ruilong Xie, Hao Tang, Cheng Chi, Daniel Chanemougame, Lars W. Liebmann, Mark V. Raymond
  • Publication number: 20180315821
    Abstract: One illustrative method disclosed includes, among other things, forming a conductive source/drain metallization structure adjacent a gate, forming a gate contact opening that exposes at least a portion of a front face of the conductive source/drain metallization structure and a portion of an upper surface of a gate structure of the gate. In this example, the method further includes forming an internal insulating spacer within the gate contact opening that is positioned on and in contact with the exposed portion of the front face, wherein the spacer leaves at least a portion of the upper surface of the gate structure exposed, and forming a conductive gate contact structure (CB) in the conductive gate contact opening.
    Type: Application
    Filed: April 28, 2017
    Publication date: November 1, 2018
    Inventors: Ruilong Xie, Hao Tang, Cheng Chi, Daniel Chanemougame, Lars W. Liebmann, Mark V. Raymond
  • Publication number: 20180294267
    Abstract: The present disclosure relates to semiconductor structures and, more particularly, to self-aligned buried power rail structures and methods of manufacture. The method includes: forming at least one fin structure of a first dimension in a substrate; forming at least one fin structure of a second dimension in the substrate; removing at least a portion of the at least one fin structure of the second dimension to form a trench; filling the trench with conductive metal to form a buried power rail structure within the trench; and forming a contact to the buried power rail structure.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 11, 2018
    Inventors: Nicholas V. LICAUSI, Guillaume BOUCHE, Lars W. LIEBMANN
  • Publication number: 20180286956
    Abstract: One illustrative device disclosed herein includes, among other things, a stepped conductive source/drain structure with a first recess defined therein and a stepped final gate structure with a second recess defined therein, wherein, when viewed from above, the second recess is axially and laterally offset from the first recess. In this example, the device also includes a layer of insulating material positioned above the stepped conductive source/drain structure and the stepped final gate structure, a conductive gate (CB) contact that is conductively coupled to the stepped final gate structure and a conductive source/drain (CA) contact that is conductively coupled to the stepped conductive source/drain structure.
    Type: Application
    Filed: April 3, 2017
    Publication date: October 4, 2018
    Inventors: Ruilong Xie, Chanro Park, Andre P. Labonte, Lars W. Liebmann, Nigel G. Cave, Mark V. Raymond, Guillaume Bouche, David E. Brown
  • Patent number: 10042969
    Abstract: Improving reliability of an electronic device includes: determining whether a side space of an interconnect of the electronic device is available for a redundant interconnect, determining whether a line end electrically coupled to the interconnect may be extended into the side space for a distance sufficient to accommodate a redundant interconnect, extending the line end into the side space for the distance when available, and adding the redundant interconnect electrically coupled to the extended line end.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: August 7, 2018
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Lars W. Liebmann, Rasit O. Topaloglu
  • Publication number: 20180151433
    Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.
    Type: Application
    Filed: January 25, 2018
    Publication date: May 31, 2018
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Patent number: 9947589
    Abstract: A transistor is formed above an active region. The transistor includes a gate structure, a first gate cap layer and a first sidewall spacer positioned adjacent sidewalls of the gate structure. Source/drain contacts are formed adjacent the first sidewall spacer. The first gate cap layer and a portion of the first sidewall spacer are removed to define a gate contact cavity that exposes a portion of the gate structure and an upper portion of the SD contacts. A second spacer and a conductive gate plug are formed in the gate contact cavity. Upper portions of the SD contacts positioned adjacent the second spacer are removed to define a gate cap cavity. A second gate cap layer is formed in the gate cap cavity. An insulating layer is formed above the second gate cap layer. A first conductive structure is formed in the insulating layer conductively coupled to the gate structure.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: April 17, 2018
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Chanro Park, Ruilong Xie, Lars W. Liebmann, Andre P. Labonte, Nigel G. Cave, Mark V. Raymond
  • Patent number: 9941163
    Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: April 10, 2018
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, GLOBALFOUNDRIES INC
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Patent number: 9929049
    Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: March 27, 2018
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, GLOBALFOUNDRIES INC
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Patent number: 9911619
    Abstract: Methods for a lithographic process used to pattern fins for fin-type field-effect transistors (FinFETs). A first plurality of hardmask sections may be formed, and sacrificial spacers may be formed on vertical sidewalls of the first plurality of hardmask sections. Each of the first plurality of hardmask sections is comprised of a first material. Gaps between the sacrificial spacers are filled with a second material, which is selected to etch selectively to the first material, in order to define a second plurality of hardmask sections each comprised of the second material.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: March 6, 2018
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Ruilong Xie, Hoon Kim, Catherine B. Labelle, Lars W. Liebmann, Chanro Park, Min Gyu Sung
  • Patent number: 9899259
    Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: February 20, 2018
    Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, GLOBALFOUNDRIES INC.
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Publication number: 20170372959
    Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta
  • Patent number: 9818873
    Abstract: Various embodiments include methods and integrated circuit structures. In some cases, a method of forming an integrated circuit structure can include: forming a doped silicon layer over a substrate; forming a plurality of fin structures from the doped silicon layer; forming a plurality of gate structures over the plurality of fin structures, each of the plurality of gate structures separated from a neighboring gate structure by a first pitch; forming a mask over the plurality of gate structures, exposing at least one of the plurality of gate structures; removing the at least one of the plurality of gate structures, wherein two of the remaining gate structures after the removing are separated by a second pitch larger than the first pitch; and forming an epitaxial region over the substrate between the two of the remaining gate structures.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: November 14, 2017
    Assignee: GLOBALFOUNDRIES INC.
    Inventors: Emre Alptekin, Lars W. Liebmann, Injo Ok, Balasubramanian Pranatharthiharan, Ravikumar Ramachandran, Soon-Cheon Seo, Charan V. V. S. Surisetty, Mickey H. Yu
  • Publication number: 20170278753
    Abstract: A method for forming a gate tie-down includes opening up a cap layer and recessing gate spacers on a gate structure to expose a gate conductor; forming inner spacers on the gate spacers; etching contact openings adjacent to sides of the gate structure down to a substrate below the gate structures; and forming trench contacts on sides of the gate structure. An interlevel dielectric (ILD) is deposited on the gate conductor and the trench contacts and over the gate structure. The ILD is opened up to expose the trench contact on one side of the gate structure and the gate conductor. A second conductive material provides a self-aligned contact down to the trench contact on the one side and to form a gate contact down to the gate conductor and a horizontal connection within the ILD over an active area between the gate conductor and the self-aligned contact.
    Type: Application
    Filed: June 9, 2017
    Publication date: September 28, 2017
    Inventors: Su Chen Fan, Andre P. Labonte, Lars W. Liebmann, Sanjay C. Mehta