Patents by Inventor Shyama P. Mukherjee

Shyama P. Mukherjee 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: 8481106
    Abstract: A method of fabrication of high-k paraelectric metal oxide films at low temperatures utilizing ordered mesoporous metal oxide thin films synthesized by organic templating methodology. The process consisting of (a) chemical solution deposition of periodic ordered mesoporous structures containing high-k metal oxide films, (b) removal of organic template additives, (c) infiltration of the pores with an appropriate second phase, and (d) low temperature thermal and/or annealing of infiltrated films.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: July 9, 2013
    Assignee: SBA Materials, Inc.
    Inventors: Shyama P. Mukherjee, Mark L. F. Phillips, Travis P. S. Thoms
  • Patent number: 7939198
    Abstract: The present invention pertains to composite cathodes suitable for use in an electrochemical cell, said cathodes comprising: (a) an electroactive sulfur-containing cathode material, wherein said electroactive sulfur-containing cathode material, in its oxidized state, comprises a polysulfide moiety of the formula —Sm—, wherein m is an integer equal to or greater than 3; and, (b) an electroactive transition metal chalcogenide composition, which encapsulates said electroactive sulfur-containing cathode material, and which retards the transport of anionic reduction products of said electroactive sulfur-containing cathode material, said electroactive transition metal chalcogenide composition comprising an electroactive transition metal chalcogenide having the formula MjYk(OR)l wherein: M is a transition metal; Y is the same or different at each occurrence and is oxygen, sulfur, or selenium; R is an organic group and is the same or different at each occurrence; j is an integer ranging from 1 to 12; k is a number ran
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: May 10, 2011
    Assignee: Sion Power Corporation
    Inventors: Shyama P. Mukherjee, Terje A. Skotheim
  • Patent number: 7790315
    Abstract: The present invention pertains to composite cathodes suitable for use in an electrochemical cell, said cathodes comprising: (a) an electroactive sulfur-containing cathode material, wherein said electroactive sulfur-containing cathode material, in its oxidized state, comprises a polysulfide moiety of the formula —Sm—, wherein m is an integer equal to or greater than 3; and, (b) an electroactive transition metal chalcogenide composition, which encapsulates said electroactive sulfur-containing cathode material, and which retards the transport of anionic reduction products of said electroactive sulfur-containing cathode material, said electroactive transition metal chalcogenide composition comprising an electroactive transition metal chalcogenide having the formula MjYk(OR)l wherein: M is a transition metal; Y is the same or different at each occurrence and is oxygen, sulfur, or selenium; R is an organic group and is the same or different at each occurrence; j is an integer ranging from 1 to 12; k is a number ran
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: September 7, 2010
    Assignee: Sion Power Corporation
    Inventors: Shyama P. Mukherjee, Terje A. Skotheim
  • Publication number: 20080220153
    Abstract: A method of fabrication of high-k paraelectric metal oxide films at low temperatures utilizing ordered mesoporous metal oxide thin films synthesized by organic templating methodology. The process consisting of (a) chemical solution deposition of periodic ordered mesoporous structures containing high-k metal oxide films, (b) removal of organic template additives, (c) infiltration of the pores with an appropriate second phase, and (d) low temperature thermal and/or annealing of infiltrated films.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 11, 2008
    Inventors: Shyama P. Mukherjee, Mark L.F. Phillips, Travis P.S. Thoms
  • Patent number: 7011889
    Abstract: The present invention provides an organosiloxane comprising at least 80 weight percent of Formula I: [Y0.01-1.0SiO1.5-2]a[Z0.01-1.0SiO1.5-2]b[H0.01-1.0SiO1.5-2]c where Y is aryl; Z is alkenyl; a is from 15 percent to 70 percent of Formula I; b is from 2 percent to 50 percent of Formula I; and c is from 20 percent to 80 percent of Formula I. The present composition is useful in semiconductor devices and may be advantageously used as an etch stop.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: March 14, 2006
    Assignee: Honeywell International Inc.
    Inventors: William B. Bedwell, Nigel P. Hacker, Roger Y. Leung, Nancy Iwamoto, Jan Nedbal, Songyuan Xie, Lorenza Moro, Shyama P. Mukherjee
  • Patent number: 6962727
    Abstract: The present invention provides an organosiloxane comprising at least 80 weight percent of Formula 1: [Y0.01-1.0SiO1.5-2]a{Z0.01-1.0SiO1.5-2]b[H0.01-1.0SiO1.5-2]c (where Y is aryl; Z is alkenyl; a is from 15 percent to 70 percent of Formula 1; b is from 2 percent to 50 percent of Formula 1; and c is from 20 percent to 80 percent of Formula 1. The present organosiloxane may be used as ceramic binder, high temperature encapsulant, and fiber matrix binder. The present composition is also useful as an adhesion promoter in that it exhibits good adhesive properties when coupled with other materials in non-microelectronic or microelectronic applications. Preferably, the present compositions are used in microelectronic applications as etch stops, hardmasks, and dielectrics.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: November 8, 2005
    Assignee: Honeywell International Inc.
    Inventors: William B. Bedwell, Nigel P. Hacker, Roger Y. Leung, Nancy Iwamoto, Jan Nedbal, Songyuan Xie, Lorenza Moro, Shyama P. Mukherjee
  • Patent number: 6787198
    Abstract: The present invention involves the hydrothermal treatment of nanostructured films to form high k PMOD™ films for use in applications that are temperature sensitive, such as applications using a polymer based substrate. After a PMOD™ precursor is deposited and converted on a substrate, and possibly after other process steps, the amorphous, nanoporous directly patterned film is subjected to low temperature hydrothermal treatment to densify and possibly crystallize the resulting high dielectric PMOD™ film. A post hydrothermal treatment bake is then performed to remove adsorped water.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 7, 2004
    Assignee: EKC Technology, Inc.
    Inventors: Shyama P. Mukherjee, Harold O. Madsen, Paul J. Roman, Jr., Leo G. Svendsen
  • Patent number: 6630433
    Abstract: Chemical mechanical planarization or spin etch planarization of surfaces of copper, tantalum and tantalum nitride is accomplished by means of the chemical formulations of the present invention. The chemical formulations may optionally include abrasive particles and which may be chemically reactive or inert. Contact or non-contact CMP may be performed with the present chemical formulations. Substantially 1:1 removal rate selectivity for Cu and Ta/TaN is achieved.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: October 7, 2003
    Assignee: Honeywell International Inc.
    Inventors: Fan Zhang, Daniel L. Towery, Joseph A. Levert, Shyama P. Mukherjee
  • Publication number: 20030157250
    Abstract: The present invention involves the hydrothermal treatment of nanostructured films to form high k PMOD™ films for use in applications that are temperature sensitive, such as applications using a polymer based substrate. After a PMOD™ precursor is deposited and converted on a substrate, and possibly after other process steps, the amorphous, nanoporous directly patterned film is subjected to low temperature hydrothermal treatment to densify and possibly crystallize the resulting high dielectric PMOD™ film. A post hydrothermal treatment bake is then performed to remove adsorped water.
    Type: Application
    Filed: October 23, 2002
    Publication date: August 21, 2003
    Inventors: Shyama P. Mukherjee, Harold O. Madsen, Paul J. Roman, Leo G. Svendsen
  • Publication number: 20030118743
    Abstract: This invention comprises methods for making nanostructured and nanoporous thin film structures of various compositions. These films can be directly patterned. In these methods, precursor films are deposited on a surface and different components of the precursor film are reacted under selected conditions, forming a nanostructured or nanoporous film. Such films can be used in a variety of applications, for example, low k dielectrics, sensors, catalysts, conductors or magnetic films. Nanostructured films can be created: (1) using one precursor component and two reactions, (2) using two or more components based on differential rates of photochemical conversion, (3) using two precursors based on the thermal sensitivity of one precursor and the photochemical sensitivity of the other, and (4) by photochemical reaction of a precursor film and selected removal of a largely unreacted component from the film.
    Type: Application
    Filed: September 30, 2002
    Publication date: June 26, 2003
    Inventors: Leo G. Svendsen, Shyama P. Mukherjee, Paul J. Roman, Ross H. Hill, Harold O. Madsen, Xin Zhang, Donna Hohertz
  • Publication number: 20030105264
    Abstract: The present invention provides an organosiloxane comprising at least 80 weight percent of Formula I: [Y0.01-1.0SiO1.5-2]a[Z0.01-1.0SiO1.5-2]b[H0.01-1.0SiO1.5-2]c where Y is aryl; Z is alkenyl; a is from 15 percent to 70 percent of Formula I; b is from 2 percent to 50 percent of Formula I; and c is from 20 percent to 80 percent of Formula I. The present composition is useful in semiconductor devices and may be advantageously used as an etch stop.
    Type: Application
    Filed: February 19, 2002
    Publication date: June 5, 2003
    Inventors: William B. Bedwell, Nigel P. Hacker, Roger Y. Leung, Nancy Iwamoto, Jan Nedbal, Songyuan Xie, Lorenza Moro, Shyama P. Mukherjee
  • Publication number: 20030031789
    Abstract: The present invention provides an organosiloxane comprising at least 80 weight percent of Formula I: [Y0.01-1.0SiO1.5-2]a[Z0.01-1.0SiO1.5-2]b[H0.01-1.0SiO1.5-2]c where Y is aryl; Z is alkenyl; a is from 15 percent to 70 percent of Formula I; b is from 2 percent to 50 percent of Formula I; and c is from 20 percent to 80 percent of Formula I.
    Type: Application
    Filed: June 3, 2002
    Publication date: February 13, 2003
    Inventors: William B. Bedwell, Nigel P. Hacker, Roger Y. Leung, Nancy Iwamoto, Jan Nedbal, Songyuan Xie, Lorenza Moro, Shyama P. Mukherjee
  • Patent number: 6406814
    Abstract: The present invention pertains to solid composite cathodes which comprise (a) an electroactive sulfur-containing cathode material which, in its oxidized state, comprises a polysulfide moiety of the formula, —Sm—, wherein m is an integer from 3 to 10; and (b) a non-electroactive particulate material having a strong adsorption of soluble polysulfides. The present invention also pertains to electric current producing cells comprising such solid composite cathodes, and methods of making such solid composite cathodes and electric current producing cells.
    Type: Grant
    Filed: October 31, 2000
    Date of Patent: June 18, 2002
    Assignee: Moltech Corporation
    Inventors: Alexander Gorkovenko, Terje A. Skotheim, Zhe-Sheng Xu, Leonid I. Boguslavsky, Zhongyi Deng, Shyama P. Mukherjee
  • Publication number: 20020055040
    Abstract: The present invention pertains to composite cathodes suitable for use in an electrochemical cell, said cathodes comprising: (a) an electroactive sulfur-containing cathode material, wherein said electroactive sulfur-containing cathode material, in its oxidized state, comprises a polysulfide moiety of the formula —Sm—, wherein m is an integer equal to or greater than 3; and, (b) an electroactive transition metal chalcogenide composition, which encapsulates said electroactive sulfur-containing cathode material, and which retards the transport of anionic reduction products of said electroactive sulfur-containing cathode material, said electroactive transition metal chalcogenide composition comprising an electroactive transition metal chalcogenide having the formula MjYk(OR)l wherein: M is a transition metal; Y is the same or different at each occurrence and is oxygen, sulfur, or selenium; R is an organic group and is the same or different at each occurrence; j is an integer ranging from 1 to 12; k is
    Type: Application
    Filed: February 27, 2001
    Publication date: May 9, 2002
    Inventors: Shyama P. Mukherjee, Terje A. Skotheim
  • Publication number: 20020020833
    Abstract: Chemical mechanical planarization or spin etch planarization of surfaces of copper, tantalum and tantalum nitride is accomplished by means of the chemical formulations of the present invention. The chemical formulations may optionally include abrasive particles and which may be chemically reactive or inert. Contact or non-contact CMP may be performed with the present chemical formulations. Substantially 1:1 removal rate selectivity for Cu and Ta/TaN is achieved.
    Type: Application
    Filed: December 20, 2000
    Publication date: February 21, 2002
    Inventors: Fan Zhang, Daniel L. Towery, Joseph A. Levert, Shyama P. Mukherjee
  • Patent number: 6238821
    Abstract: The present invention pertains to composite cathodes suitable for use in an electrochemical cell, said cathodes comprising: (a) an electroactive sulfur-containing cathode material, wherein said electroactive sulfur-containing cathode material, in its oxidized state, comprises a polysulfide moiety of the formula —Sm—, wherein m is an integer equal to or greater than 3; and, (b) an electroactive transition metal chalcogenide composition, which encapsulates said electroactive sulfur-containing cathode material, and which retards the transport of anionic reduction products of said electroactive sulfur-containing cathode material, said electroactive transition metal chalcogenide composition comprising an electroactive transition metal chalcogenide having the formula MjYk (OR)l wherein: M is a transition metal; Y is the same or different at each occurrence and is oxygen, sulfur, or selenium; R is an organic group and is the same or different at each occurrence; j is an integer ranging from 1 to 12; k is
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: May 29, 2001
    Assignee: Moltech Corporation
    Inventors: Shyama P. Mukherjee, Terje A. Skotheim
  • Patent number: 6210831
    Abstract: The present invention pertains to solid composite cathodes which comprise (a) an electroactive sulfur-containing cathode material which, in its oxidized state, comprises a polysulfide moiety of the formula, —Sm—, wherein m is an integer from 3 to 10; and (b) a non-electroactive particulate non-fibrous material having a strong adsorption of soluble polysulfides. The present invention also pertains to electric current producing cells comprising such solid composite cathodes, and methods of making such solid composite cathodes and electric current producing cells.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: April 3, 2001
    Assignee: Moltech Corporation
    Inventors: Alexander Gorkovenko, Terje A. Skotheim, Zhe-Sheng Xu, Leonid I. Boguslavsky, Zhongyi Deng, Shyama P. Mukherjee
  • Patent number: 5919587
    Abstract: The present invention pertains to composite cathodes suitable for use in an electrochemical cell, said cathodes comprising: (a) an electroactive sulfur-containing cathode material, wherein said electroactive sulfur-containing cathode material, in its oxidized state, comprises a polysulfide moiety of the formula --S.sub.m --, wherein m is an integer equal to or greater than 3; and, (b) an electroactive transition metal chalcogenide composition, which encapsulates said electroactive sulfur-containing cathode material, and which retards the transport of anionic reduction products of said electroactive sulfur-containing cathode material, said electroactive transition metal chalcogenide composition comprising an electroactive transition metal chalcogenide having the formula M.sub.j Y.sub.k (OR).sub.
    Type: Grant
    Filed: May 21, 1997
    Date of Patent: July 6, 1999
    Assignee: Moltech Corporation
    Inventors: Shyama P. Mukherjee, Terje A. Skotheim
  • Patent number: 5462897
    Abstract: A method for forming a thin film layer on a dielectric substrate. A nonconducting layer of material is blanket deposited on the dielectric substrate followed by a layer of polymeric dielectric material which is then patterned to partially expose the underlying layer of nonconducting material. The exposed underlying layer of material is contacted with a metallic salt solution. A key part of the present invention is the layer of nonconducting material which catalyzes the deposition of a seed layer from the metallic salt solution. Then, additional metallization may be easily electrolessly plated on the seed layer.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: October 31, 1995
    Assignee: International Business Machines Corporation
    Inventors: Thomas H. Baum, Shyama P. Mukherjee, Terrence R. O'Toole, Alice F. Tai, Alfred Viehbeck
  • Patent number: 5380560
    Abstract: A method of selectively seeding or activating metal interconnections patterned on polyimide dielectric surfaces using an aqueous solution of palladium sulfate, palladium perchlorate, palladium trifluoromethane sulfonate, palladium nitrate or other palladium salts having poorly coordinating counter ions. This strongly selective seeding and the corresponding ability to reliably remove all traces of the seeding material from the polyimide surface eliminates shorting, bridging and reduction of breakdown voltage during electroless plating of a thin layer of nickel or cobalt.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: January 10, 1995
    Assignee: International Business Machines Corporation
    Inventors: Suryanarayana Kaja, Shyama P. Mukherjee, Eugene J. O'Sullivan, Milan Paunovic