Patents by Inventor Willi Volksen

Willi Volksen 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: 11498063
    Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: November 15, 2022
    Assignee: International Business Machines Corporation
    Inventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
  • Patent number: 11371143
    Abstract: Provided is a pore-filling method for protecting the pores of a porous material. The method, which is performed using a modified i-CVD technique, involves filling the pores of a porous material with a gas phase monomer within a pressure chamber and subsequently polymerizing the monomer, both within the pores and on the surface of the material as an overburden. The method is solvent-free and can fill and protect pores of any size of any material.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 28, 2022
    Assignees: International Business Machines Corporation, Tokyo Electron Limited
    Inventors: Krystelle Lionti, Geraud Jean-Michel Dubois, Willi Volksen, Jacques Faguet
  • Patent number: 11174412
    Abstract: Disclosed is a method for mechanically anchoring polymers on the surface of a porous substrate by trapping polymer chains within the pores of the substrate under capillary forces. Surface modification of the porous substrate is achieved by anchoring one end of the polymer chains within the pores while one or more other ends of the polymer chains dangle from the surface of the porous substrate. The method provides a unique way of modifying the surface of a material without chemical reactions or precursor-substrate interactions.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: November 16, 2021
    Assignee: International Business Machines Corporation
    Inventors: Geraud J.M. Dubois, Krystelle Lionti, Teddie P. Magbitang, Willi Volksen
  • Patent number: 11168234
    Abstract: The present invention relates to CNT filled polymer composite system possessing a high thermal conductivity and high temperature stability so that it is a highly thermally conductive for use in 3D and 4D integration for joining device sub-laminate layers. The CNT/polymer composite also has a CTE close to that of Si, enabling a reduced wafer structural warping during high temperature processing cycling. The composition is tailored to be suitable for coating, curing and patterning by means conventionally known in the art.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: November 9, 2021
    Assignee: International Business Machines Corporation
    Inventors: James L. Hedrick, Robert D. Miller, Deborah A. Neumayer, Sampath Purushothaman, Mary E. Rothwell, Willi Volksen, Roy R. Yu
  • Publication number: 20200378001
    Abstract: Provided is a pore-filling method for protecting the pores of a porous material. The method, which is performed using a modified i-CVD technique, involves filling the pores of a porous material with a gas phase monomer within a pressure chamber and subsequently polymerizing the monomer, both within the pores and on the surface of the material as an overburden. The method is solvent-free and can fill and protect pores of any size of any material.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 3, 2020
    Inventors: Krystelle Lionti, Geraud Jean-Michel Dubois, Willi Volksen, Jacques Faguet
  • Patent number: 10767084
    Abstract: The present invention related to CNT filled polymer composite system possessing a high thermal conductivity and high temperature stability so that it is a highly thermally conductive for use in 3D and 4D integration for joining device sub-laminate layers. The CNT/polymer composite also has a CTE close to that of Si, enabling a reduced wafer structural warping during high temperature processing cycling. The composition is tailored to be suitable for coating, curing and patterning by means conventionally known in the art.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: September 8, 2020
    Assignee: International Business Machines Corporation
    Inventors: James L. Hedrick, Robert Dennis Miller, Deborah Ann Neumayer, Sampath Purushothaman, Mary E. Rothwell, Willi Volksen, Roy R. Yu
  • Publication number: 20200165494
    Abstract: The present invention relates to CNT filled polymer composite system possessing a high thermal conductivity and high temperature stability so that it is a highly thermally conductive for use in 3D and 4D integration for joining device sub-laminate layers. The CNT/polymer composite also has a CTE close to that of Si, enabling a reduced wafer structural warping during high temperature processing cycling. The composition is tailored to be suitable for coating, curing and patterning by means conventionally known in the art.
    Type: Application
    Filed: January 23, 2020
    Publication date: May 28, 2020
    Inventors: James L. Hedrick, Robert D. Miller, Deborah A. Neumayer, Sampath Purushothaman, Mary E. Rothwell, Willi Volksen, Roy R. Yu
  • Publication number: 20200030784
    Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.
    Type: Application
    Filed: October 4, 2019
    Publication date: January 30, 2020
    Inventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
  • Publication number: 20190378781
    Abstract: The present invention relates to CNT filled polymer composite system possessing a high thermal conductivity and high temperature stability so that it is a highly thermally conductive for use in 3D and 4D integration for joining device sub-laminate layers. The CNT/polymer composite also has a CTE close to that of Si, enabling a reduced wafer structural warping during high temperature processing cycling. The composition is tailored to be suitable for coating, curing and patterning by means conventionally known in the art.
    Type: Application
    Filed: June 7, 2018
    Publication date: December 12, 2019
    Inventors: James L. Hedrick, Robert Dennis Miller, Deborah Ann Neumayer, Sampath Purushothaman, Mary E. Rothwell, Willi Volksen, Roy R. Yu
  • Patent number: 10471418
    Abstract: A porous substrate susceptible to one or both of hydroxylation and alkoxylation by a first protic solvent is exposed to a first relative pressure of the first protic solvent. The porous substrate includes a first plurality of pores having a first average pore diameter and a second plurality of pores having a second average pore diameter that is greater than the first average pore diameter. The first relative pressure is effective to one or both of hydroxylate or alkoxylate substantially only pores of the first average pore diameter to form a first modified porous substrate. The first modified porous substrate is reacted with a first functionalizing reagent that is effective to functionalize one or both of hydroxylated or alkoxylated surfaces, thereby functionalizing substantially only the first plurality of the pores, to form a first functionalized porous substrate.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 12, 2019
    Assignee: International Business Machines Corporation
    Inventors: Geraud J. Dubois, Bruno Michel, Patrick Ruch, Sarmenio Saliba, Willi Volksen
  • Publication number: 20190322891
    Abstract: Disclosed is a method for mechanically anchoring polymers on the surface of a porous substrate by trapping polymer chains within the pores of the substrate under capillary forces. Surface modification of the porous substrate is achieved by anchoring one end of the polymer chains within the pores while one or more other ends of the polymer chains dangle from the surface of the porous substrate. The method provides a unique way of modifying the surface of a material without chemical reactions or precursor-substrate interactions.
    Type: Application
    Filed: June 14, 2019
    Publication date: October 24, 2019
    Inventors: Geraud J.M. Dubois, Krystelle Lionti, Teddie P. Magbitang, Willi Volksen
  • Patent number: 10370556
    Abstract: Disclosed is a method for mechanically anchoring polymers on the surface of a porous substrate by trapping polymer chains within the pores of the substrate under capillary forces. Surface modification of the porous substrate is achieved by anchoring one end of the polymer chains within the pores while one or more other ends of the polymer chains dangle from the surface of the porous substrate. The method provides a unique way of modifying the surface of a material without chemical reactions or precursor-substrate interactions.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: August 6, 2019
    Assignee: International Business Machines Corporation
    Inventors: Geraud J. M. Dubois, Krystelle Lionti, Teddie P. Magbitang, Willi Volksen
  • Patent number: 10340182
    Abstract: A process comprises insulating a porous low k substrate with an organic polymer coating where the polymer does not penetrate or substantially penetrate the pores of the substrate, e.g., pores having a pore diameter of about one nm to about 5 nm, thereby completely or substantially mitigating the potential for capacitance increase of the substrate. The substrate comprises porous microcircuit substrate materials with surface pores optionally opening into subsurface pores. The organic polymer has a molecular weight greater than about 5,000 to greater than about 10,000 and a glass transition temperature greater than about 200° C. up to about the processing temperature required for forming the imaging layer and antireflective layer in a microcircuit, e.g., greater than about 225° C. The invention includes production of a product by this process and an article of manufacture embodying these features.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: July 2, 2019
    Assignee: International Business Machines corporation
    Inventors: James P. Doyle, Geraud Dubois, Nicholas C. Fuller, Teddie P. Magbitang, Robert D. Miller, Sampath Purushothaman, Willi Volksen
  • Publication number: 20190137879
    Abstract: A crosslinked self-assembled monolayer (SAM), comprising surface groups containing a nitrogen-heterocycle, was formed on an oxygen plasma-treated silicon oxide or hafnium oxide top surface of a substrate. The SAM is covalently bound to the underlying oxide layer. The SAM was patterned by direct write methods using ultraviolet (UV) light of wavelength 193 nm or an electron beam, forming a line-space pattern comprising non-exposed SAM features. The non-exposed SAM features non-covalently bound DNA-wrapped carbon nanotubes (DNA-CNT) deposited from aqueous solution with a selective placement efficiency of about 90%. Good alignment of carbon nanotubes to the long axis of the SAM features was also observed. The resulting patterned biopolymer features were used to prepare a CNT based field effect transistor.
    Type: Application
    Filed: November 3, 2017
    Publication date: May 9, 2019
    Inventors: Shu-Jen Han, Brian Lin, Hareem T. Maune, Charles T. Rettner, Linda K. Sundberg, Leslie E. Thompson, Hoa D. Truong, Willi Volksen
  • Patent number: 10217661
    Abstract: An article may include a structure including a patterned metal on a surface of a substrate, the patterned metal including metal features separated by gaps of an average dimension of less than about 1000 nm. A porous low dielectric constant material having a dielectric value of less than about 2.7 substantially occupies all gaps. An interface between the metal features and the porous low dielectric constant material may include less than about 0.1% by volume of voids.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: February 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Robert L. Bruce, Geraud J. Dubois, Gregory Fritz, Teddie P. Magbitang, Hiroyuki Miyazoe, Willi Volksen
  • Publication number: 20180340100
    Abstract: The present invention related to CNT filled polymer composite system possessing a high thermal conductivity and high temperature stability so that it is a highly thermally conductive for use in 3D and 4D integration for joining device sub-laminate layers. The CNT/polymer composite also has a CTE close to that of Si, enabling a reduced wafer structural warping during high temperature processing cycling. The composition is tailored to be suitable for coating, curing and patterning by means conventionally known in the art.
    Type: Application
    Filed: June 8, 2018
    Publication date: November 29, 2018
    Inventors: James L. Hedrick, Robert Dennis Miller, Deborah Ann Neumayer, Sampath Purushothaman, Mary E. Rothwell, Willi Volksen, Roy R. Yu
  • Publication number: 20180163076
    Abstract: Disclosed is a method for mechanically anchoring polymers on the surface of a porous substrate by trapping polymer chains within the pores of the substrate under capillary forces. Surface modification of the porous substrate is achieved by anchoring one end of the polymer chains within the pores while one or more other ends of the polymer chains dangle from the surface of the porous substrate. The method provides a unique way of modifying the surface of a material without chemical reactions or precursor-substrate interactions.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 14, 2018
    Applicant: International Business Machines Corporation
    Inventors: Geraud J.M. Dubois, Krystelle Lionti, Teddie P. Magbitang, Willi Volksen
  • Patent number: 9994741
    Abstract: The present invention relates to CNT filled polymer composite system possessing a high thermal conductivity and high temperature stability so that it is a highly thermally conductive for use in 3D and 4D integration for joining device sub-laminate layers. The CNT/polymer composite also has a CTE close to that of Si, enabling a reduced wafer structural warping during high temperature processing cycling. The composition is tailored to be suitable for coating, curing and patterning by means conventionally known in the art.
    Type: Grant
    Filed: December 13, 2015
    Date of Patent: June 12, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James L. Hedrick, Robert Dennis Miller, Deborah Ann Neumayer, Sampath Purushothaman, Mary E. Rothwell, Willi Volksen, Roy R. Yu
  • Publication number: 20170365511
    Abstract: An article may include a structure including a patterned metal on a surface of a substrate, the patterned metal including metal features separated by gaps of an average dimension of less than about 1000 nm. A porous low dielectric constant material having a dielectric value of less than about 2.7 substantially occupies all gaps. An interface between the metal features and the porous low dielectric constant material may include less than about 0.1% by volume of voids.
    Type: Application
    Filed: September 5, 2017
    Publication date: December 21, 2017
    Inventors: Robert L. Bruce, Geraud J. Dubois, Gregory Fritz, Teddie P. Magbitang, Hiroyuki Miyazoe, Willi Volksen
  • Patent number: 9773698
    Abstract: An article may include a structure including a patterned metal on a surface of a substrate, the patterned metal including metal features separated by gaps of an average dimension of less than about 1000 nm. A porous low dielectric constant material having a dielectric value of less than about 2.7 substantially occupies all gaps. An interface between the metal features and the porous low dielectric constant material may include less than about 0.1% by volume of voids. A method may include depositing a filling material including a silicon-based resin having a molecular weight of less than about 30,000 Da and a porogen having a molecular weight greater than about 400 Da onto a structure comprising a patterned metal. The deposited filling material may be subjected to a first thermal treatment to substantially fill all gaps, and subjected to a second thermal treatment and a UV radiation treatment.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 26, 2017
    Assignee: International Business Machines Corporation
    Inventors: Robert L. Bruce, Geraud J. Dubois, Gregory Fritz, Teddie P. Magbitang, Hiroyuki Miyazoe, Willi Volksen