Patents by Inventor Sanjay Malik

Sanjay Malik 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: 20160313641
    Abstract: This disclosure relates to a dry film structure that includes a carrier substrate, and a polymeric layer supported by the carrier substrate. The polymeric layer includes at least one fully imidized polyimide polymer.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 27, 2016
    Inventors: Binod B. De, Sanjay Malik, Raj Sakamuri, William A. Reinerth, Ognian N. Dimov, Ahmad A. Naiini
  • Publication number: 20160313642
    Abstract: This disclosure relates to a photosensitive composition that includes at least one fully imidized polyimide polymer having a weight average molecular weight in the range of about 20,000 Daltons to about 70,000 Daltons; at least one solubility switching compound; at least one photoinitiator; and at least one solvent. The composition is capable of forming a film or a dry film having a dissolution rate of greater than about 0.15 micron/second using cyclopentanone as a developer.
    Type: Application
    Filed: April 19, 2016
    Publication date: October 27, 2016
    Inventors: Sanjay Malik, Raj Sakamuri, Ognian N. Dimov, Binod B. De, William A. Reinerth, Ahmad A. Naiini
  • Publication number: 20150219990
    Abstract: This disclosure relates to a polyimide polymer that includes the reaction product of: (a) at least one diamine selected from the group consisting of a diamine of Structure (Ia) and a diamine of Structure (Ib), (b) at least one diamine of Structure (II), (c) at least one tetracarboxylic acid dianhydride, and (d) at least one compound containing a first functional group reactive with an amine or an anhydride and at least a second functional group selected from the group consisting of a substituted or unsubstituted linear alkenyl group and a substituted or unsubstituted linear alkynyl group. Each variable in the above formulas is defined in the specification.
    Type: Application
    Filed: January 28, 2015
    Publication date: August 6, 2015
    Inventors: Sanjay Malik, William A. Reinerth, Binod B. De, Ognian Dimov
  • Publication number: 20140343223
    Abstract: This disclosure relates to a process of purifying a polymer. The process includes (a) providing an organic solution containing a polyimide or polyamic ester in at least one polar, aprotic polymerization solvent; (b) adding at least one purification solvent to the organic solution to form a diluted organic solution, the at least one purification solvent is less polar than the at least one polymerization solvent and has a lower water solubility than the at least one polymerization solvent at 25° C.; (c) washing the diluted organic solution with water or an aqueous solution to obtain a washed organic solution; and (d) removing at least a portion of the at least one purification solvent in the washed organic solution to obtain a solution containing a purified polyimide or polyamic ester. This disclosure also relates to a process of preparing a film on a semiconductor substrate, as well as related purified polymer solutions, films, and articles.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 20, 2014
    Applicant: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: William A. Reinerth, Sanjay Malik, Binod B. De
  • Publication number: 20140343199
    Abstract: This disclosure relates to a polymer that includes a first repeat unit and at least one end-cap group at one end of the polymer. The first repeat unit includes at least one imide moiety and at least one indane-containing moiety. The end-cap group is capable of undergoing a cycloreversion reaction. This disclosure also relates to a thermosetting composition containing the above polymer.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Applicant: FUJIFILM ELECTRONIC MATERIALS U.S.A., INC.
    Inventors: Sanjay Malik, William A. Reinerth, Binod B. De, Ahmad A. Naiini
  • Patent number: 7727705
    Abstract: An etch resistant thermally curable Underlayer for use in a multiplayer liyhographic process to produce a photolithographic bilayer coated substrate, the composition having: (a) at least one cycloolefin polymer comprising at least one repeating unit of Structure (I), and at least one repeating unit of Structure (II), and optionally at least one repeating unit of Structure (III) with the proviso that neither Structure (I) nor Structure (II) nor Structure (III) contains acid sensitive groups. b) at least one cross-linking agent selected from the group consisting of an amino or phenolic cross-linking agent; c) a least one thermal acid generator (TAG); d) at lest one solvent; and e) optionally, at least one surfactant.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: June 1, 2010
    Assignee: Fujifilm Electronic Materials, U.S.A., Inc.
    Inventors: Binod B. De, Sanjay Malik, Raj Sakamuri, Chisun Hong
  • Patent number: 7491783
    Abstract: A synthesis process for polyhedral oligomeric silsesquioxanes that produces in high yield a low resin content, solvent free, and trace metal free monomer suitable for use in microelectronic applications. POSS silanols are reacted with a silane coupling agent in the presence of a solvent and a superbase.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: February 17, 2009
    Inventors: Joseph J. Schwab, Yi-Zhong An, Sanjay Malik, Binod B. De
  • Publication number: 20080206667
    Abstract: An etch resistant thermally curable Underlayer for use in a multiplayer liyhographic process to produce a photolithographic bilayer coated substrate, the composition having: (a) at least one cycloolefin polymer comprising at least one repeating unit of Structure (I), and at least one repeating unit of Structure (II), and optionally at least one repeating unit of Structure (III) with the proviso that neither Structure (I) nor Structure (II) nor Structure (III) contains acid sensitive groups. b) at least one cross-linking agent selected from the group consisting of an amino or phenolic cross-linking agent; c) a least one thermal acid generator (TAG); d) at lest one solvent; and e) optionally, at least one surfactant.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 28, 2008
    Inventors: Binod B. De, Sanjay Malik, Raj Sakamuri, Chisun Hong
  • Patent number: 7416821
    Abstract: Thermally curable undercoat composition comprising for producing a bilayer relief image comprising: a) a polymer of Structure I comprising repeating units of Structure II, III, and IV b) a phenolic crosslinker; c) a thermal acid generator (TAG); and d) a solvent.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: August 26, 2008
    Assignee: Fujifilm Electronic Materials, U.S.A., Inc.
    Inventors: Binod B De, Sanjay Malik, J. Thomas Kocab, Thomas Sarubbi
  • Publication number: 20080199805
    Abstract: A photosensitve composition exhibiting high resolution and enhanced, tunable O2 plasma etch resistance comprising a silicon-containing base polymer, a silicon-containing additive, a photoacid generator and solvent is provided. A method of forming a patterned resist film is also provided.
    Type: Application
    Filed: February 8, 2008
    Publication date: August 21, 2008
    Inventors: IL'YA RUSHKIN, OGNIAN N. DIMOV, SANJAY MALIK, BINOD B. DE
  • Publication number: 20080199814
    Abstract: Manufacturing semiconductor device by steps of: a) providing substrate with antireflective coating or underlayer, b) applying first photosensitive composition over substrate, c) exposing first composition to radiation to produce first pattern, d) developing exposed first composition to produce an imaged bilayer stack, e) rinsing the stack, f) applying fixer to the stack, g) applying optional bake, h) rinsing the stack, i) applying second optional bake, j) applying second photosensitive composition onto the stack to produce multilayer stack, k) exposing second composition to produce second pattern offset from first pattern, l) developing exposed second composition to produce multilayer stack, and m) rinsing multilayer stack; the photosensitive compositions have photoacid generator and substantially aqueous base insoluble polymer whose solubility increases upon treatment with acid and further comprises an anchor group, and the fixer is a polyfunctional compound reactive with anchor group, but does not conta
    Type: Application
    Filed: December 4, 2007
    Publication date: August 21, 2008
    Inventors: Dave Brzozowy, Thomas R. Sarubbi, Sanjay Malik, Gregory Spaziano
  • Publication number: 20070065750
    Abstract: A synthesis process for polyhedral oligomeric silsesquioxanes that produces in high yield a low resin content, solvent free, and trace metal free monomer suitable for use in microelectronic applications. POSS silanols are reacted with a silane coupling agent in the presence of a solvent and a superbase.
    Type: Application
    Filed: December 7, 2005
    Publication date: March 22, 2007
    Inventors: Joseph Schwab, Yi-Zhong An, Sanjay Malik, Binod De
  • Publication number: 20050238997
    Abstract: Thermally curable undercoat composition comprising for producing a bilayer relief image comprising: a) a polymer of Structure I comprising repeating units of Structure II, III, and IV b) a phenolic crosslinker; c) a thermal acid generator (TAG); and d) a solvent.
    Type: Application
    Filed: March 9, 2005
    Publication date: October 27, 2005
    Inventors: Binod De, Sanjay Malik, J. Kocab, Thomas Sarubbi
  • Patent number: 6924339
    Abstract: Thermally cured undercoat for use in lithography of a thermally cured composition comprising a hydroxyl-containing polymer, an amino cross-linking agent and a thermal acid generator, wherein the hydroxyl containing polymer is a polymer comprising units m, n and o of the following formula: wherein R1 is H or methyl; R2 is a substituted or unsubstituted C6-C14 aryl acrylate or C6-C14 aryl methacrylate group wherein the substituted groups may be phenyl, C1-4 alkyl or C1-4 alkoxy; R3 is a hydroxyl functionalized C1-C8 alkyl acrylate, methacrylate or C6-C14 aryl group, R4 is a C1-C10 linear or branched alkylene; p is an integer of from 1 to 5 with the proviso that there are no more than thirty carbon atoms in the [—R4O—]p; R5 is a C1-C10 linear, branched or cyclic alkyl, substituted or unsubstituted C6-C14 aryl, or substituted or unsubstituted C7-C15 alicyclic hydrocarbon; and m is about 40 to 70, n is about 15 to 35 and o is about 15 to 25.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: August 2, 2005
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Binod B. De, Sanjay Malik, Gregory Spaziano, John Joseph Biafore, Patrick Foster, Sidney George Slater, Thomas Steinhausler, Andrew J. Blakeney
  • Patent number: 6916543
    Abstract: Novel copolymers suitable for forming the top layer photoimagable coating in a deep U V. particularly a 193 nm and 248 nm, bilayer resist system providing high resolution photolithography. Chemically amplified photoresist composition and organosilicon moieties suitable for use in the binder resin for photoimagable etching resistant photoresist composition that is suitable as a material for use in ArF and KrF photolithography using the novel copolymers.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: July 12, 2005
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Binod B. De, Sanjay Malik, Stephanie J. Dilocker, Ognian N. Dimov
  • Patent number: 6830870
    Abstract: A polymer comprises an acetal-containing monomer unit having the general structure I and at least one of the fluorine-containing monomer units having the general structures II and III: wherein R1, R4, R5 and R6 are each independently H, lower alkyl, CH2CO2R10, cyano, CH2CN, or halogen, wherein R10 is any alkyl, cycloalkyl, aryl, arylalkyl, alkylenecycloalkyl, silyl or siloxy or linear or cyclic polysiloxane group; R2 is CHR11R12 where R11 and R12 are each independently H, lower alkyl, cycloalkyl or aryl; A is a substituted or unsubstituted alkylene, cycloalkylene, alkylenecycloalkylene, or alkylenearylene; and R3 is linear, branched or cyclic fluoroalkyl group or SiR13R14R15 where R13, R14, and R15 are each independently alkyl, cycloalkyl, aryl, arylalkyl, alkylenecycloalkyl, silyl, siloxy, linear or cyclic polysiloxane or silsesquioxane alkyl group; B is an aryl, C(═O)—O—(CH2)x where x=0-4, lower alkyl, cycloalkyl, alkene cycloalkyl, silyl, siloxyl, or linear or cycl
    Type: Grant
    Filed: May 28, 2003
    Date of Patent: December 14, 2004
    Assignee: Arch Speciality Chemicals, Inc.
    Inventors: Sanjay Malik, Stephanie J. Dilocker, Binod B. De
  • Patent number: 6803434
    Abstract: A synthetic process comprising the following steps: providing a reaction mixture comprising: an ethylenically unsaturated anhydride monomer, at least one ethylenically unsaturated non-anhydride monomer, a free radical initiator, and an alkyl substituted THF solvent having the general structure of formula 1: where R1, R2, R3, and R4 are independently chosen from the group hydrogen and C1-C4 linear or branched alkyl with the proviso that at least one of R1, R2, R3, and R4 is not H; polymerizing the reaction mixture; and removing, by distillation, unreacted monomers, the alkyl substituted THF solvent, and any low boiling volatile reaction products.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: October 12, 2004
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Stephanie Dilocker, Sanjay Malik, Binod De, Ashok Reddy
  • Patent number: 6783917
    Abstract: A photoresist composition comprising at least one acetal polymer having a silicon substituent; provided that the silicon substituent is not directly attached to the acetal functionality, thereby providing high resolution, improved DOF, and improved dimensional stability under metrology conditions.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: August 31, 2004
    Assignee: Arch Specialty Chemicals, Inc.
    Inventors: Andrew J. Blakeney, Sanjay Malik, Stephanie Dilocker, John Ferri, Jeffery Eisele
  • Publication number: 20040137362
    Abstract: Novel copolymers suitable for forming the top layer photoimagable coating in a deep UV, particularly a 193 nm and 248 nm, bilayer resist system providing high resolution photolithography. Chemically amplified photoresist composition and organosilicon moieties suitable for use in the binder resin for photoimagable etching resistant photoresist composition that is suitable as a material for use in ArF and KrF photolithography using the novel copolymers.
    Type: Application
    Filed: October 31, 2003
    Publication date: July 15, 2004
    Applicant: ARCH SPECIALTY CHEMICALS, INC.
    Inventors: Binod B. De, Sanjay Malik, Stephanie J. Dilocker, Ognian N. Dimov
  • Publication number: 20040034160
    Abstract: A polymer comprises an acetal-containing monomer unit having the general structure I and at least one of the fluorine-containing monomer units having the general structures II and III: 1
    Type: Application
    Filed: May 28, 2003
    Publication date: February 19, 2004
    Applicant: ARCH SPECIALITY CHEMICALS, INC.
    Inventors: Sanjay Malik, Stephanie J. Dilocker, Binod B. De