Patents by Inventor Luciana Meli

Luciana Meli 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: 20200144107
    Abstract: A method includes forming a first insulating layer having one or more vias formed in at least a portion of the first insulating layer. The vias are filled with a first metallic material. A cap layer is deposited on a top surface of the first insulating layer and a top surface of the one or more vias and a second insulating layer is deposited on a top surface of the cap layer. One or more openings are formed in the second insulating layer and the cap layer. A self-assembled monolayer is formed on an exposed top surface of the first metallic material in the one or more vias. A barrier layer is formed on at least the exposed surface of the one or more openings. The self-assembled monolayer is removed and the one or more openings are filled with a second metallic material.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 7, 2020
    Inventors: Ashim Dutta, Ekmini Anuja De Silva, Jennifer Church, Luciana Meli Thompson
  • Publication number: 20200135542
    Abstract: One or more embodiments described herein include systems, and/or methods that facilitate fabrication of a semiconductor device using a spacer lithography-etch process. According to an embodiment, a method can comprise performing a first lithography exposure and etch over a first layer of a semiconductor device, where the first lithography exposure and etch comprises forming one or more mandrels on a first region of a second layer by employing a first photoresist layer. The method can further comprise forming one or more spacers on a sidewall of the one or more mandrels and covering a second region of the second layer, where the second region is adjacent to the one or more mandrels. The method can further comprise forming a cut over a third region of the second layer and filling the third region with first material.
    Type: Application
    Filed: October 30, 2018
    Publication date: April 30, 2020
    Inventors: Nelson Felix, Ekmini Anuja De Silva, Luciana Meli Thompson, Yann Mignot
  • Publication number: 20200124972
    Abstract: A photolithography patterning stack and method for repairing defects in the stack. The stack includes an organic planarization layer, a hardmask layer, and a plurality of patterned photoresist lines in contact with the hardmask layer. A plurality of trenches is situated between the plurality of patterned photoresist lines. Each trench exposes a portion of the hardmask layer. A repairing layer is formed in contact with and only bonded to surfaces of the plurality of patterned photoresist lines. The method includes forming a photolithographic patterning stack. The stack includes at least a hardmask layer formed on one or more underlayers and a photoresist layer formed in contact with the hardmask layer. The photoresist layer is patterned into a plurality of patterned portions. A repairing layer is formed in contact with and only bonded to surfaces of each patterned portion of the plurality of portions.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Luciana MELI THOMPSON, Jing GUO, Nelson FELIX, Ekmini Anuja DE SILVA
  • Patent number: 10615037
    Abstract: A method of manufacturing a semiconductor device includes forming a hard mask layer over a substrate and activating a surface of the hard mask layer to form a surface active layer over the hard mask layer. A resist layer is formed over the hard mask layer and a metal-containing layer is selectively formed over the surface active layer in at least one trench defined between portions of the resist layer. The resist layer is removed to define a pattern between portions of the selectively formed metal-containing layer and the hard mask layer is etched in accordance with the pattern. The etched pattern is transferred to at least a portion of the substrate and at least a portion of the hard mask layer, surface active layer, and metal-containing layer are removed.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: April 7, 2020
    Assignee: International Business Machines Corporation
    Inventors: Ashim Dutta, Ekmini Anuja De Silva, Luciana Meli Thompson
  • Patent number: 10578981
    Abstract: Methods for post-lithographic inspection using an e-beam inspection tool of organic extreme ultraviolet sensitive (EUV) sensitive photoresists generally includes conformal deposition of a removable metal carboxide or metal carboxynitride onto the relief image. The conformal deposition of the metal carboxide or metal carboxynitride includes a low temperature vapor deposition process of less than about 100° C. to provide a coating thickness of less than about 5 nanometers. Subsequent to e-beam inspection, the metal carboxide or metal carboxynitride coating is removed using a wet stripping process. Once stripped, the wafer can continue on to further process fabrication without being a sacrificial wafer.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 3, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Luciana Meli Thompson, Ekmini A. De Silva, Yasir Sulehria, Nelson Felix
  • Publication number: 20200058501
    Abstract: A method of manufacturing a semiconductor device includes forming a hard mask layer over a substrate and activating a surface of the hard mask layer to form a surface active layer over the hard mask layer. A resist layer is formed over the hard mask layer and a metal-containing layer is selectively formed over the surface active layer in at least one trench defined between portions of the resist layer. The resist layer is removed to define a pattern between portions of the selectively formed metal-containing layer and the hard mask layer is etched in accordance with the pattern. The etched pattern is transferred to at least a portion of the substrate and at least a portion of the hard mask layer, surface active layer, and metal-containing layer are removed.
    Type: Application
    Filed: August 17, 2018
    Publication date: February 20, 2020
    Inventors: Ashim Dutta, Ekmini Anuja De Silva, Luciana Meli Thompson
  • Publication number: 20200033733
    Abstract: Methods for post-lithographic inspection using an e-beam inspection tool of organic extreme ultraviolet sensitive (EUV) sensitive photoresists generally includes conformal deposition of a removable metal carboxide or metal carboxynitride onto the relief image. The conformal deposition of the metal carboxide or metal carboxynitride includes a low temperature vapor deposition process of less than about 100° C. to provide a coating thickness of less than about 5 nanometers. Subsequent to e-beam inspection, the metal carboxide or metal carboxynitride coating is removed using a wet stripping process. Once stripped, the wafer can continue on to further process fabrication without being a sacrificial wafer.
    Type: Application
    Filed: July 25, 2018
    Publication date: January 30, 2020
    Inventors: Luciana Meli Thompson, Ekmini A. De Silva, Yasir Sulehria, Nelson Felix
  • Patent number: 10539884
    Abstract: Methods for post-lithographic inspection using an e-beam inspection tool of organic EUV sensitive photoresists generally includes conformal deposition of a silicon derivative or a metal oxide onto the relief image, wherein the silicon derivative is a material selected to have a dielectric constant that is greater than the dielectric constant of the underlying organic EUV sensitive photoresist. The conformal deposition of the silicon derivative or the metal oxide includes a low temperature vapor deposition process of less than about 100° C. to provide a coating thickness of less than about 5 nanometers.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: January 21, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Luciana Meli Thompson, Ashim Dutta, Ekmini A. De Silva
  • Patent number: 10437951
    Abstract: A method comprises: defining a set of rules for an inspection and detection of a defect in two or more electronic devices on a semiconductor chip, the set of rules being based on a modulation transfer function providing a response as contrast versus spatial frequency of the pattern spacings of the two or more electronic devices on the semiconductor chip; generating two or more care areas for two or more pattern spacings of the electronic devices on the semiconductor chip using a hierarchical set of spacing rules; and inspecting the two or more pattern spacings of the electronic devices on the semiconductor chip for defects.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: October 8, 2019
    Assignee: International Business Machines Corporation
    Inventors: Ravi K. Bonam, Nelson Felix, Scott Halle, Luciana Meli
  • Publication number: 20190258171
    Abstract: Methods for post-lithographic inspection using an e-beam inspection tool of organic EUV sensitive photoresists generally includes conformal deposition of a silicon derivative or a metal oxide onto the relief image, wherein the silicon derivative is a material selected to have a dielectric constant that is greater than the dielectric constant of the underlying organic EUV sensitive photoresist. The conformal deposition of the silicon derivative or the metal oxide includes a low temperature vapor deposition process of less than about 100° C. to provide a coating thickness of less than about 5 nanometers.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 22, 2019
    Inventors: Luciana Meli Thompson, Ashim Dutta, Ekmini A. De Silva
  • Publication number: 20190189775
    Abstract: A vertical field-effect transistor and a method for fabricating the same. The vertical field-effect transistor includes a substrate and a bottom source/drain region. The vertical field-effect transistor also includes at least one fin structure, and further includes a bottom spacer layer. The bottom spacer layer has a substantially uniform thickness with a thickness variation of less than 3 nm. A gate structure contacts the bottom spacer layer and at least one fin structure. The method includes forming a structure including a substrate, a source/drain region, and one or more fins. A polymer brush spacer is formed in contact with at least sidewalls of the one or more fins. A polymer brush layer is formed in contact with at least the source/drain region and the polymer brush spacer. The polymer brush spacer is removed. Then, the polymer brush layer is reflowed to the sidewalls of the at least one fin.
    Type: Application
    Filed: February 22, 2019
    Publication date: June 20, 2019
    Applicant: International Business Machines Corporation
    Inventors: Chi-Chun LIU, Sanjay MEHTA, Luciana MELI, Muthumanickam SANKARAPANDIAN, Kristin SCHMIDT, Ankit VORA
  • Patent number: 10281826
    Abstract: Embodiments are directed to a method and system for determining effective dose of a lithography tool. The method includes performing a series of open frame exposures with the lithography tool on a substrate to produce a set of controlled exposure dose blocks in resist, and then baking and developing the exposed substrate. The method further includes scanning the resultant open frame images with oblique light and capturing the light scattered from the substrate surface. The method further includes creating a haze map from the background signal of the scattered light data, converting the haze map to a graphical image file, and analyzing the graphical image file to determine effective dose of the lithography tool, wherein a brightness of the graphical image file is related to effective dose of the lithography tool.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: May 7, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel A. Corliss, Luciana Meli Thompson, Christopher F. Robinson
  • Patent number: 10274836
    Abstract: Embodiments are directed to a method and system for determining effective dose of a lithography tool. The method includes performing a series of open frame exposures with the lithography tool on a substrate to produce a set of controlled exposure dose blocks in resist, and then baking and developing the exposed substrate. The method further includes scanning the resultant open frame images with oblique light and capturing the light scattered from the substrate surface. The method further includes creating a haze map from the background signal of the scattered light data, converting the haze map to a graphical image file, and analyzing the graphical image file to determine effective dose of the lithography tool, wherein a brightness of the graphical image file is related to effective dose of the lithography tool.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: April 30, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel A. Corliss, Luciana Meli Thompson, Christopher F. Robinson
  • Publication number: 20190109212
    Abstract: A vertical field-effect transistor and a method for fabricating the same. The vertical field-effect transistor includes a substrate and a bottom source/drain region. The vertical field-effect transistor also includes at least one fin structure, and further includes a bottom spacer layer. The bottom spacer layer has a substantially uniform thickness with a thickness variation of less than 3 nm. A gate structure contacts the bottom spacer layer and at least one fin structure. The method includes forming a structure including a substrate, a source/drain region, and one or more fins. A polymer brush spacer is formed in contact with at least sidewalls of the one or more fins. A polymer brush layer is formed in contact with at least the source/drain region and the polymer brush spacer. The polymer brush spacer is removed. Then, the polymer brush layer is reflowed to the sidewalls of the at least one fin.
    Type: Application
    Filed: October 6, 2017
    Publication date: April 11, 2019
    Inventors: Chi-Chun LIU, Sanjay MEHTA, Luciana MELI, Muthumanickam SANKARAPANDIAN, Kristin SCHMIDT, Ankit VORA
  • Patent number: 10256320
    Abstract: A vertical field-effect transistor and a method for fabricating the same. The vertical field-effect transistor includes a substrate and a bottom source/drain region. The vertical field-effect transistor also includes at least one fin structure, and further includes a bottom spacer layer. The bottom spacer layer has a substantially uniform thickness with a thickness variation of less than 3 nm. A gate structure contacts the bottom spacer layer and at least one fin structure. The method includes forming a structure including a substrate, a source/drain region, and one or more fins. A polymer brush spacer is formed in contact with at least sidewalls of the one or more fins. A polymer brush layer is formed in contact with at least the source/drain region and the polymer brush spacer. The polymer brush spacer is removed. Then, the polymer brush layer is reflowed to the sidewalls of the at least one fin.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: April 9, 2019
    Assignee: International Business Machines Corporation
    Inventors: Chi-Chun Liu, Sanjay Mehta, Luciana Meli, Muthumanickam Sankarapandian, Kristin Schmidt, Ankit Vora
  • Publication number: 20190101829
    Abstract: Embodiments of the present invention provide systems and methods for trapping amines. This in turn mitigates the undesired scumming and footing effects in a photoresist. The polymer brush is grafted onto a silicon nitride surface. The functional groups and molecular weight of the polymer brush provide protons and impose steric hindrance, respectively, to trap amines diffusing from a silicon nitride surface.
    Type: Application
    Filed: September 29, 2017
    Publication date: April 4, 2019
    Inventors: Indira P. Seshadri, Ekmini Anuja De Silva, Chi-Chun Liu, Cheng Chi, Jing Guo, Luciana Meli Thompson
  • Publication number: 20190065634
    Abstract: A method comprises: defining a set of rules for an inspection and detection of a defect in two or more electronic devices on a semiconductor chip, the set of rules being based on a modulation transfer function providing a response as contrast versus spatial frequency of the pattern spacings of the two or more electronic devices on the semiconductor chip; generating two or more care areas for two or more pattern spacings of the electronic devices on the semiconductor chip using a hierarchical set of spacing rules; and inspecting the two or more pattern spacings of the electronic devices on the semiconductor chip for defects.
    Type: Application
    Filed: August 23, 2017
    Publication date: February 28, 2019
    Inventors: Ravi K. Bonam, Nelson Felix, Scott Halle, Luciana Meli
  • Publication number: 20180373164
    Abstract: Embodiments are directed to a method and system for determining effective dose of a lithography tool. The method includes performing a series of open frame exposures with the lithography tool on a substrate to produce a set of controlled exposure dose blocks in resist, and then baking and developing the exposed substrate. The method further includes scanning the resultant open frame images with oblique light and capturing the light scattered from the substrate surface. The method further includes creating a haze map from the background signal of the scattered light data, converting the haze map to a graphical image file, and analyzing the graphical image file to determine effective dose of the lithography tool, wherein a brightness of the graphical image file is related to effective dose of the lithography tool.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 27, 2018
    Inventors: DANIEL A. CORLISS, LUCIANA MELI THOMPSON, CHRISTOPHER F. ROBINSON
  • Publication number: 20180373165
    Abstract: Embodiments are directed to a method and system for determining effective dose of a lithography tool. The method includes performing a series of open frame exposures with the lithography tool on a substrate to produce a set of controlled exposure dose blocks in resist, and then baking and developing the exposed substrate. The method further includes scanning the resultant open frame images with oblique light and capturing the light scattered from the substrate surface. The method further includes creating a haze map from the background signal of the scattered light data, converting the haze map to a graphical image file, and analyzing the graphical image file to determine effective dose of the lithography tool, wherein a brightness of the graphical image file is related to effective dose of the lithography tool.
    Type: Application
    Filed: November 27, 2017
    Publication date: December 27, 2018
    Inventors: DANIEL A. CORLISS, LUCIANA MELI THOMPSON, CHRISTOPHER F. ROBINSON