Patents by Inventor Thomas H. Baum

Thomas H. Baum 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: 11466038
    Abstract: Provided is a plasma enhanced atomic layer deposition (PEALD) process for depositing etch-resistant SiOCN films. These films provide improved growth rate, improved step coverage and excellent etch resistance to wet etchants and post-deposition plasma treatments containing O2 and NH3 co-reactants. This PEALD process relies on one or more precursors reacting in tandem with the plasma exposure to deposit the etch-resistant thin-films of SiOCN. The films display excellent resistance to wet etching with dilute aqueous HF solutions, both after deposition and after post-deposition plasma treatment(s). Accordingly, these films are expected to display excellent stability towards post-deposition fabrication steps utilized during device manufacturing and build.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: October 11, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Philip S. H. Chen, Eric Condo, Bryan C. Hendrix, Thomas H. Baum, David Kuiper
  • Publication number: 20220267895
    Abstract: Chemical vapor deposition (CVD) processes which use a ruthenium precursor of formula R1R2Ru(0), wherein R1 is an aryl group-containing ligand, and R2 is a diene group-containing ligand and a reducing gas a described. The CVD can include oxygen after an initial deposition period using the ruthenium precursor and reducing gas. The method can provide selective Ru deposition on conductive materials while minimizing deposition on non-conductive or less conductive materials. Further, the subsequent use of oxygen can significantly improve deposition rate while minimizing or eliminating oxidative damage of the substrate material. The method can be used to form Ru-containing layers on integrated circuits and other microelectronic devices.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Inventors: Philip S. H. Chen, Bryan C. Hendrix, Thomas H. Baum
  • Publication number: 20220259236
    Abstract: The invention provides a facile process for preparing various Group VI precursor compounds useful in the vapor deposition of such Group VI metals onto solid substrates, especially microelectronic semiconductor device substrates. The process provides an effective means to obtain such volatile materials, which can then be sources of molybdenum, chromium, or tungsten-containing materials to be deposited on such substrates. Additionally, the invention provides a method for vapor deposition of such compounds onto microelectronic device substrates.
    Type: Application
    Filed: May 4, 2022
    Publication date: August 18, 2022
    Inventors: David M. Ermert, Thomas H. Baum, Robert Wright, JR.
  • Patent number: 11414750
    Abstract: Provided is a method for forming a silicon oxycarbonitride film (SiOCN) with varying proportions of each element, using a disilane precursor under vapor deposition conditions, wherein the percent carbon incorporation into the SiOCN film may be varied between about 5 to about 60%, by utilizing co-reactants chosen from oxygen, ammonia, and nitrous oxide gas. The carbon-enriched SiOCN films thus formed may be converted to pure silicon dioxide films after an etch stop protocol by treatment with O2 plasma.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: August 16, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Sungsil Cho, Seobong Chang, Jae Eon Park, Bryan C. Hendrix, Thomas H. Baum
  • Publication number: 20220242889
    Abstract: Provided is a facile methodology for preparing certain organotin compounds having alkyl and alkylamino or alkyl and alkoxy substituents. The process provides the organotin compounds in a highly pure form which are particularly useful as precursors in the deposition of high-purity tin oxide films in, for example, extreme ultraviolet light (EUV) lithography techniques used in the manufacture of certain microelectronic devices.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 4, 2022
    Inventors: David M. ERMERT, Thomas H. BAUM, Thomas M. CAMERON
  • Publication number: 20220238330
    Abstract: The invention provides a PEALD process to deposit etch resistant SiOCN films. These films provide improved growth rate, improved step coverage and excellent etch resistance to wet etchants and post-deposition plasma treatments containing O2 co-reactant. In one embodiment, this PEALD process relies on a single precursor—a bis(dialkylamino)tetraalkyldisiloxane, together with hydrogen plasma to deposit the etch-resistant thin-films of SiOCN. Since the film can be deposited with a single precursor, the overall process exhibits improved throughput.
    Type: Application
    Filed: January 19, 2022
    Publication date: July 28, 2022
    Inventors: Philip S.H. CHEN, Eric Condo, David Kuiper, Thomas H. Baum, Susan V. Dimeo
  • Patent number: 11380539
    Abstract: Certain embodiments of the invention utilize low temperature atomic layer deposition methodology to form material containing silicon and nitrogen (e.g., silicon nitride). The atomic layer deposition uses silicon tetraiodide (SiI4) or disilicon hexaiodide (Si2I6) as one precursor and uses a nitrogen-containing material such as ammonia as another precursor. In circumstances where a selective deposition of silicon nitride is desired to be deposited over silicon dioxide, the substrate surface is first treated with ammonia plasma.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: July 5, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Han Wang, Bryan C. Hendrix, Eric Condo, Thomas H. Baum
  • Patent number: 11371138
    Abstract: Chemical vapor deposition (CVD) processes which use a ruthenium precursor of formula R1R2Ru(0), wherein R1 is an aryl group-containing ligand, and R2 is a diene group-containing ligand and a reducing gas a described. The CVD can include oxygen after an initial deposition period using the ruthenium precursor and reducing gas. The method can provide selective Ru deposition on conductive materials while minimizing deposition on non-conductive or less conductive materials. Further, the subsequent use of oxygen can significantly improve deposition rate while minimizing or eliminating oxidative damage of the substrate material. The method can be used to form Ru-containing layers on integrated circuits and other microelectronic devices.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: June 28, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Philip S. H. Chen, Bryan C. Hendrix, Thomas H. Baum
  • Patent number: 11358975
    Abstract: Provided is an efficient and effective process for preparing certain organotin compounds having alkyl and alkylamino substituents. The process provides the organotin compounds in a highly pure crystalline form which are particularly useful as precursors in the deposition of high-purity tin oxide films in, for example, extreme ultraviolet light (EUV) lithography techniques used in the manufacture of certain microelectronic devices.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: June 14, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: David M. Ermert, Thomas M. Cameron, David Kuiper, Thomas H. Baum
  • Patent number: 11352383
    Abstract: The invention provides a facile process for preparing various Group VI precursor compounds useful in the vapor deposition of such Group VI metals onto solid substrates, especially microelectronic semiconductor device substrates. The process provides an effective means to obtain such volatile materials, which can then be sources of molybdenum, chromium, or tungsten-containing materials to be deposited on such substrates. Additionally, the invention provides a method for vapor deposition of such compounds onto microelectronic device substrates.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 7, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: David M. Ermert, Thomas H. Baum, Robert Wright, Jr.
  • Publication number: 20220153763
    Abstract: Provided is an efficient and effective process for preparing certain organotin compounds having alkyl and alkylamino substituents. The process provides the organotin compounds in a highly pure crystalline form which are particularly useful as precursors in the deposition of high-purity tin oxide films in, for example, extreme ultraviolet light (EUV) lithography techniques used in the manufacture of certain microelectronic devices.
    Type: Application
    Filed: February 2, 2022
    Publication date: May 19, 2022
    Inventors: David M. ERMERT, Thomas M. CAMERON, David Kuiper, Thomas H. BAUM
  • Patent number: 11312739
    Abstract: Methods of synthesizing aminoiodosilanes are disclosed. The reaction to produce the disclosed aminoiodosilanes is represented by the formula: SiI4+z(NH2R1)?SiIy(NHR1)z, wherein R1 is selected from a C1-C10 alkyl or cycloalkyl, aryl, or a hetero group; y=1 to 3; and z=4?y.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: April 26, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Thomas H. Baum, Manish Khandelwal, David Kuiper
  • Publication number: 20220020862
    Abstract: Provided are carbon-free (i.e., less than about 0.1 atomic percentage of carbon) Zr doped HfO2 films, where Zr can be up to the same level of Hf in terms of atomic percentage (i.e., 1% to 60%). The Zr doping can be achieved also by nanometer m laminated ZrO2 and HfO2 films useful in ferroelectric memories (FeRAM). The laminated films are comprised of about 5 to 10 layers of HfO2 and ZrO2 (i.e., alternating) films, each of which for example can be a thickness of about 1 to about 2 nm, wherein the laminated films are a total of about 5 to 10 nm in thickness.
    Type: Application
    Filed: July 14, 2021
    Publication date: January 20, 2022
    Inventors: Jun-Fei ZHENG, Thomas H. BAUM
  • Publication number: 20220009953
    Abstract: The invention provides a facile process for preparing various Group VI precursor compounds, set forth below as Formula (I), useful in the vapor deposition of certain Group VI metals onto solid substrates, especially microelectronic semiconductor device substrates. Also provided is a process for the preparation of such precursor compounds. Additionally, the invention provides a method for vapor deposition of Group VI metals onto microelectronic device substrates utilizing the precursor compounds of the invention.
    Type: Application
    Filed: July 8, 2021
    Publication date: January 13, 2022
    Inventors: David M. ERMERT, Thomas H. BAUM
  • Publication number: 20220002323
    Abstract: Provided is an efficient and effective process for preparing certain organotin compounds having alkyl and alkylamino substituents. The process provides the organotin compounds in a highly pure crystalline form which are particularly useful as precursors in the deposition of high-purity tin oxide films in, for example, extreme ultraviolet light (EUV) lithography techniques used in the manufacture of certain microelectronic devices.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 6, 2022
    Inventors: David M. ERMERT, Thomas M. CAMERON, David KUIPER, Thomas H. BAUM
  • Publication number: 20210395882
    Abstract: Provided is improved methodology for the nucleation of certain metal nitride substrate surfaces utilizing certain silicon-containing halides, silicon-containing amides, and certain metal precursors, in conjunction with nitrogen-containing reducing gases. While utilizing a pretreatment step, the methodology shows greatly improved nucleation wherein a microelectronic device substrate having such a metal nitride film deposited thereon has a thickness of about 10 ? to about 15 ? and less than about 1% of void area. Once such nucleation has been achieved, traditional layer-upon-layer deposition can rapidly take place.
    Type: Application
    Filed: January 28, 2021
    Publication date: December 23, 2021
    Inventors: Gavin RICHARDS, Thomas H. BAUM, Han WANG, Bryan C. HENDRIX
  • Patent number: 11203604
    Abstract: Provided is a process for preparing certain silane precursor compounds, e.g., triiodosilane from trichlorosilane utilizing lithium iodide in powder form and catalyzed by tertiary amines. The process provides triiodosilane in high yields and high purity. Triiodosilane is a precursor compound useful in the atomic layer deposition of silicon onto various microelectronic device structures.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 21, 2021
    Assignee: Entegris, Inc.
    Inventors: David Kuiper, Manish Khandelwal, Thomas M. Cameron, Thomas H. Baum, John Cleary
  • Publication number: 20210388008
    Abstract: Provided is a plasma enhanced atomic layer deposition (PEALD) process for depositing etch-resistant SiOCN films. These films provide improved growth rate, improved step coverage and excellent etch resistance to wet etchants and post-deposition plasma treatments containing O2 and NH3 co-reactants. This PEALD process relies on one or more precursors reacting in tandem with the plasma exposure to deposit the etch-resistant thin-films of SiOCN. The films display excellent resistance to wet etching with dilute aqueous HF solutions, both after deposition and after post-deposition plasma treatment(s). Accordingly, these films are expected to display excellent stability towards post-deposition fabrication steps utilized during device manufacturing and build.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 16, 2021
    Inventors: Philip S.H. CHEN, Eric CONDO, Bryan C. HENDRIX, Thomas H. BAUM, David KUIPER
  • Publication number: 20210331930
    Abstract: Provided are complexes useful in the conversion of chloro- and bromo-silanes to highly desired iodosilanes such as H2SiI2 and HSiI3, via a halide exchange reaction. The species which mediates this reaction is an iodide reactant comprising aluminum.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 28, 2021
    Inventors: Scott A. LANEMAN, Thomas M. CAMERON, Thomas H. BAUM, David KUIPER, David M. ERMERT, Jonathan W. DUBE
  • Publication number: 20210300952
    Abstract: Provided are certain silicon precursor compounds which are useful in the formation of silicon-containing films in the manufacture of semiconductor devices, and more specifically to compositions and methods for forming such silicon-containing films, such as films comprising silicon, silicon nitride, silicon oxynitride, silicon dioxide, a carbon-doped silicon nitride, or a carbon-doped silicon oxynitride film.
    Type: Application
    Filed: March 31, 2020
    Publication date: September 30, 2021
    Inventors: Manish KHANDELWAL, Thomas H. BAUM