Patents by Inventor Ronald M. Pearlstein

Ronald M. Pearlstein 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: 20240047196
    Abstract: A selective thermal atomic layer deposition (ALD) process is disclosed. The process may comprise loading a substrate comprising a dielectric material, and a metal, into a reactor. The substrate may be reacted with a non-plasma based oxidant, thereby forming an oxidized metal surface on the metal. The substrate may be heated and exposed to a passivation agent that adsorbs more onto the oxidized metal than the dielectric material. Such exposure may form a passivation layer on the oxidized metal surface, and the substrate may be exposed to a silicon precursor that adsorbs more onto the dielectric material than the passivation layer, forming a chemi-adsorbed silicon-containing layer on the dielectric material. The substrate may be exposed to the non-plasma based oxidant, that simultaneously partially oxidizes the passivation layer, and oxidizes the chemi-adsorbed silicon-containing layer to form a silicon-containing dielectric film on the dielectric material.
    Type: Application
    Filed: November 30, 2021
    Publication date: February 8, 2024
    Inventors: RONALD M. PEARLSTEIN, XINJIAN LEI, ROBERT GORDON RIDGEWAY, AIPING WU, YI-CHIA LEE, SUMIT AGARWAL, ROHIT NARAYANAN KAVASSERY RAMESH, WANXING XU, RYAN JAMES GASVODA
  • Publication number: 20240014036
    Abstract: A selective plasma enhanced atomic layer deposition (ALD) process is disclosed. The process may comprise loading a substrate comprising a dielectric material, and a metal, into a reactor. The substrate may be reacted with a non-plasma based oxidant, thereby forming an oxidized metal surface on the metal. The substrate may be heated and exposed to a passivation agent that adsorbs more onto the oxidized metal than the dielectric material. Such exposure may form a passivation layer on the oxidized metal surface, and the substrate may be exposed to a silicon precursor that adsorbs more onto the dielectric material that the passivation layer, forming a chemi-adsorbed silicon-containing layer on the dielectric material. The substrate may be exposed to a plasma based oxidant, that simultaneously partially oxidizes the passivation layer, and oxidizes the chemi-adsorbed silicon-containing layer to form a dielectric film on the dielectric material.
    Type: Application
    Filed: November 30, 2021
    Publication date: January 11, 2024
    Inventors: RONALD M. PEARLSTEIN, XINJIAN LEI, ROBERT GORDON RIDGEWAY, AIPING WU, YI-CHIA LEE, SUMIT AGARWAL, ROHIT NARAYANAN KAVASSERY RAMESH, WANXING XU, RYAN JAMES GASVODA
  • Publication number: 20220234903
    Abstract: A composition comprises at least one a composition comprising at least one organosilicon compound which has two or more silicon atoms connected to either a carbon atom or a hydrocarbon moiety.
    Type: Application
    Filed: May 21, 2020
    Publication date: July 28, 2022
    Applicant: VERSUM MATERIALS US, LLC
    Inventors: RONALD M. PEARLSTEIN, MANCHAO XIAO, RICHARD HO, XINJIAN LEI
  • Patent number: 5358985
    Abstract: In an active hydrogen-containing B-side composition for reaction with a polyisocyanate-containing A-side composition to make a polyurethane or polyurethaneurea elastomer by reaction injection molding, the improvement which comprises a mold release composition which is the reaction product of triethylenediamine and a C.sub.2 -C.sub.21 epoxide reacted in the presence of a carboxy functional siloxane.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: October 25, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John E. Dewhurst, Ronald M. Pearlstein
  • Patent number: 5317075
    Abstract: In an active hydrogen-containing B-side composition for reaction with a polyisocyanate-containing A-side composition to make a polyurethane or polyurethane/urea elastomer by reaction injected molding, the improvement which comprises a mold release composition which is the reaction product of a C.sub.12 -C.sub.36 fatty acid, a tertiary amine having at least one C.sub.12 -C.sub.18 alkyl substituent and a C.sub.2 -C.sub.21 reactive epoxide.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: May 31, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: John E. Dewhurst, Ronald M. Pearlstein, Thomas W. Panunto, Reinaldo M. Machado
  • Patent number: 5294418
    Abstract: High capacity solid state compositions comprising cyanocobaltate complexes have been developed which are capable of reversibly chemically binding oxygen to selectively remove oxygen from an oxygen-containing fluid stream. The cyanocobaltate complexes which make up the compositions comprise a cobalt (II)-containing anion having from 3 to 5 cyanide ligands wherein at least one cyanide stretching mode, as measured by infrared spectroscopy, is between 2074 cm.sup.-1 and 2140 cm.sup.-1. Additionally, these complexes have a charge-balancing cation having a molecular volume in excess of 40.ANG..sup.3.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: March 15, 1994
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dorai Ramprasad, Ingrid K. Meier, Ronald M. Pearlstein, Guido P. Pez
  • Patent number: 5208335
    Abstract: High Capacity solid state cyanocobaltate complexes represented by the chemical formula:[(A).sub.a (R.sub.4 N).sub.b ].sup.z+.sub.x/z [Co(CN).sub.n ].sup.x- .multidot.pSwhere:A is alkali metal atom, alkaline earth metal atom, Zn, Cd or Hg atom;a is any number from 0 to 2.5each R is independently C.sub.1 -C.sub.1O substituted or unsubstituted alkyl, aryl or aralkyl; or a long chain hydrocarbon polymerb is any number from greater than zero to 3z is 1, 2 or 3;n is any number from 3 to 5;x is n-2;p is any number from greater than zero to 6; andS is a ligand which is capable of coordinating with [(A).sub.a (R.sub.4 N).sub.b 9 .sup.z+, Co or both.are capable of chemically binding oxygen to form novel oxygen adducts, thereby selectively removing oxygen from an oxygen-containing fluid stream. The bound oxygen may be recovered from the complexes by increasing the temperature or by reducing the partial pressure of O.sub.2 above the adduct.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: May 4, 1993
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dorai Ramprasad, Guido P. Pez, Ronald M. Pearlstein, Ingrid K. Meier
  • Patent number: 5141725
    Abstract: A process is provided for selectively separating oxygen from an oxygen-containing fluid stream by bringing said fluid stream into contact with a high capacity solid state cyanocobaltate complex in a non-aluminosilicate environment represented by the chemical formula:A.sub.x/z.sup.z+ [Co(CN).sub.n ].sup.x- .multidot.pSwhere:A is an alkali, alkaline earth, transition, or Group 12 metal atom;z is 1, 2 or 3;n is any number from 3 to 5;x is n-2;p is any number from greater than zero to 6; andS is a ligand which is capable of coordinating with A.sup.z+, Co or both.These complexes chemically bind oxygen to form novel oxygen adducts, thereby selectively removing oxygen from the fluid stream. The bound oxygen may be recovered by increasing the temperature or by reducing the partial pressure of O.sub.2 above the adduct.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: August 25, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dorai Ramprasad, Guido P. Pez, Ronald M. Pearlstein, Ingrid K. Meier
  • Patent number: 5126466
    Abstract: A process is provided for selectively separating oxygen from an oxygen-containing fluid stream by bringing said fluid stream into contact with a high capacity solid state cyanocobaltate complex in a non-aluminosilicate environment represented by the chemical formula:A.sub.X/Z.sup.Z+ [Co(CN).sub.n ].sup.X- .cndot.pSwhere:A is an alkali, alkaline earth, transition, or Group 12 metal atom;Z is 1, 2 or 3;n is any number from 3 to 5;X is n-2;p is any number from greater than zero to 6; andS is a ligand which is capable of coordinating with A.sup.Z+, Co or both.These complexes chemically bind oxygen to form novel oxygen adducts, thereby selectively removing oxygen from the fluid stream. The bound oxygen may be recovered by increasing the temperature or by reducing the partial pressure of O.sub.2 above the adduct.
    Type: Grant
    Filed: March 19, 1991
    Date of Patent: June 30, 1992
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dorai Ramprasad, Guido P. Pez, Ronald M. Pearlstein, Ingrid K. Meier