Patents by Inventor Thomas Gadda

Thomas Gadda 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: 20220162391
    Abstract: Carbon-carbon unsaturated bond containing, halogen containing, and solubility-enhancer containing coatings on semiconductor substrates for forming patterns thereon. The present coatings can be produced by coating of semiconductor substrates with carbon-carbon unsaturated bond-containing, halogen-containing, and solubility-enhancer containing polyhydrogensilsesquioxane resin solutions. Provided herein is also a method for patterning substrate coating of a polyhydrogensilsesquioxane containing a carbon-carbon unsaturated bond, halogen, and solubility-enhancer with radiation of light, the method comprising the steps of irradiating a coated substrate along a selected pattern to form an irradiated structure with a region of irradiated coating and a region with un-irradiated coating and selectively developing the irradiated structure to remove a substantial portion of the un-irradiated coating to form a patterned substrate.
    Type: Application
    Filed: February 25, 2020
    Publication date: May 26, 2022
    Inventors: Thomas Gädda, Luong Dang Nguyen, Markus Laukkanen, Kimmo Karaste, Oskari Kähkönen, Juha Rantala
  • Patent number: 11214704
    Abstract: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: January 4, 2022
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Thomas Gadda, Minni Pirttimaa, Ali Harlin, Mika Harkonen
  • Publication number: 20210311394
    Abstract: Silanol-containing organic-inorganic hybrid coatings on semiconductor substrates for forming patterns thereon. The present coatings can be produced by coating of semiconductor substrates with metal and silanol containing polyhydridosilsesquioxane resin solutions. Provided herein is also a method for patterning a metal and silanol containing polyhydridosilsesquioxane coated substrate with radiation of light at a specific wavelength, the method comprising the steps of irradiating a coated substrate along a selected pattern to form an irradiated structure with a region of irradiated coating and a region with un-irradiated coating and selectively developing the irradiated structure to remove a substantial portion of the un-irradiated coating to form a patterned substrate. The invention allows for obtaining a preselected silanol content polyhydridosilsesquioxane resin, and adjustment of the silanol content will make it possible to obtain a highly sensitive coating for application in EUV.
    Type: Application
    Filed: August 12, 2019
    Publication date: October 7, 2021
    Inventors: Thomas Gädda, Luong Dang Nguyen, Markus Laukkanen, Kimmo Karaste, Juha Rantala, Jonathan Glen
  • Publication number: 20200109310
    Abstract: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.
    Type: Application
    Filed: December 9, 2019
    Publication date: April 9, 2020
    Inventors: Thomas Gadda, Minni Pirttimaa, Ali Harlin, Mika Harkonen
  • Patent number: 10510551
    Abstract: Method of forming a protective hard mask layer on a substrate in a semiconductor etch process, comprising the step of applying by solution deposition on the substrate a solution or colloidal dispersion of an alumina polymer, said solution or dispersion being obtained by hydrolysis and condensation of monomers of at least one aluminium oxide precursor in a solvent or a solvent mixture in the presence of water and a catalyst. The invention can be used for making a hard mask in a TSV process to form a high aspect ratio via a structure on a semiconductor substrate.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 17, 2019
    Assignee: PIBOND OY
    Inventors: Juha T. Rantala, Thomas Gadda, Wei-Min Li, David A. Thomas, William McLaughlin
  • Patent number: 10227446
    Abstract: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 12, 2019
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Leena Nurmi, Thomas Gädda
  • Publication number: 20180201724
    Abstract: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.
    Type: Application
    Filed: November 6, 2015
    Publication date: July 19, 2018
    Inventors: Leena Nurmi, Thomas Gädda
  • Publication number: 20170306511
    Abstract: Metal oxide particles, preferably crystalline transition metal oxide particles, made via a continuous process comprising application of a voltage across an electrolyte solution. The electrolyte solution includes a transition metal salt dissolved in water, and preferably also includes a compound for increasing the electrical conductivity of the electrolyte. The particles made by the processes disclosed herein, can have sizes in the micrometer or nanometer ranges. The oxide particles can have a variety of uses, including for charge storage devices. As an example, crystalline manganese oxide nanoparticles, and methods for making the same, are disclosed for a variety of uses including lithium ion batteries.
    Type: Application
    Filed: August 27, 2015
    Publication date: October 26, 2017
    Inventors: Juha RANTALA, Thomas GADDA
  • Publication number: 20170200615
    Abstract: Method of forming a protective hard mask layer on a substrate in a semiconductor etch process, comprising the step of applying by solution deposition on the substrate a solution or colloidal dispersion of an alumina polymer, said solution or dispersion being obtained by hydrolysis and condensation of monomers of at least one aluminium oxide precursor in a solvent or a solvent mixture in the presence of water and a catalyst. The invention can be used for making a hard mask in a TSV process to form a high aspect ratio via a structure on a semiconductor substrate.
    Type: Application
    Filed: December 9, 2016
    Publication date: July 13, 2017
    Inventors: Juha T. Rantala, Thomas Gadda, Wei-Min Li, David A. Thomas, William McLaughlin
  • Patent number: 9657147
    Abstract: The present invention relates to a method for preparation a glycolide polyester by ring opening polymerization characterized in that glycolide monomer with optional co-monomer(s) of cyclic ester(s) is/are subjected to ring opening polymerization in the presence of a dispersion stabilizer and a catalyst, said catalyst being selected for precipitating glycolide homopolymer or copolymer from solvent, said solvent being selected so that the glycolide monomer and the optional co-monomer(s), the dispersion stabilizer and the catalyst are soluble therein but said glycolide homopolymer or copolymer is non-soluble. The present invention further relates to an in situ ring opening polymerizing process product, and to use of said glycolide polyester, and to further processing of said glycolide polyester.
    Type: Grant
    Filed: May 23, 2012
    Date of Patent: May 23, 2017
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Jun Shan, Mika Härkönen, Jarmo Ropponen, Ali Harlin, Harri Heikkinen, Virpi Rämö, Thomas Gädda, Leena Nurmi, Pia Willberg-Keyriläinen
  • Patent number: 9564339
    Abstract: Method of forming a protective hard mask layer on a substrate in a semiconductor etch process, comprising the step of applying by solution deposition on the substrate a solution or colloidal dispersion of an alumina polymer, said solution or dispersion being obtained by hydrolysis and condensation of monomers of at least one aluminum oxide precursor in a solvent or a solvent mixture in the presence of water and a catalyst. The invention can be used for making a hard mask in a TSV process to form a high aspect ratio via a structure on a semiconductor substrate.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: February 7, 2017
    Assignee: Pibond Oy
    Inventors: Juha T. Rantala, Thomas Gädda, Wei-Min Li, David A. Thomas, William McLaughlin
  • Publication number: 20160060387
    Abstract: Described herein is a feasible, significantly simplified production method that avoids challenging lactonization steps and converts a low molecular weight aliphatic polyester, consisting of hydroxy acids and a comonomer, whose molecular weight has been increased by step-growth polymerization reactions. The molecular weight of the aliphatic polyester, based on comparison of initial and final weight average molecular weights (Mw,1/Mw,2), increased significantly at a rate which permits the use of reactive extrusion to produce high molecular weight aliphatic polyesters in a simple, economically feasible manner.
    Type: Application
    Filed: November 6, 2015
    Publication date: March 3, 2016
    Inventors: Thomas Gadda, Minni Pirttimaa, Ali Harlin, Mika Harkonen
  • Publication number: 20140309366
    Abstract: The present invention relates to a method for preparation a glycolide polyester by ring opening polymerization characterized in that glycolide monomer with optional co-monomer(s) of cyclic ester(s) is/are subjected to ring opening polymerization in the presence of a dispersion stabilizer and a catalyst, said catalyst being selected for precipitating glycolide homopolymer or copolymer from solvent, said solvent being selected so that the glycolide monomer and the optional co-monomer(s), the dispersion stabilizer and the catalyst are soluble therein but said glycolide homopolymer or copolymer is non-soluble. The present invention further relates to an in situ ring opening polymerizing process product, and to use of said glycolide polyester, and to further processing of said glycolide polyester.
    Type: Application
    Filed: May 23, 2012
    Publication date: October 16, 2014
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT
    Inventors: Jun SHAN, Mika HÄRKÖNEN, Jarmo ROPPONEN, Ali HARLIN, Harri HEIKKINEN, Virpi RÄMÖ, Thomas GÄDDA, Leena NURMI, Pia WILLBERG-KEYRILÄINEN
  • Publication number: 20130143408
    Abstract: Method of forming a protective hard mask layer on a substrate in a semiconductor etch process, comprising the step of applying by solution deposition on the substrate a solution or colloidal dispersion of an alumina polymer, said solution or dispersion being obtained by hydrolysis and condensation of monomers of at least one aluminium oxide precursor in a solvent or a solvent mixture in the presence of water and a catalyst. The invention can be used for making a hard mask in a TSV process to form a high aspect ratio via a structure on a semiconductor substrate.
    Type: Application
    Filed: March 29, 2010
    Publication date: June 6, 2013
    Applicant: SILECS OY
    Inventors: Juha T Rantala, Thomas Gädda, Wei-Min Li, David A. Thomas, William McLaughlin
  • Patent number: 8133965
    Abstract: Thin films are disclosed that are suitable as thin films in IC's and for other similar applications. In particular, the invention concerns thin films comprising compositions obtainable by hydrolysis of two or more silicon compounds, which yield an at least partially cross-linked siloxane structure. The invention also concerns a method for producing such films by preparing siloxane compositions by hydrolysis of suitable reactants, by applying the hydrolyzed compositions on a substrate in the form of a thin layer and by curing the layer to form a high silicon content film.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: March 13, 2012
    Assignee: Silecs, Inc.
    Inventors: Juha T. Rantala, Thomas Gädda, Jyri Paulasaari
  • Patent number: 8119792
    Abstract: The invention relates to novel transglycosylation products and their preparation. The transglycosylation products according to the invention are prepared from starch derivatives, such as esters or ethers of starch. The products are obtained by reacting a starch derivative with an alcohol in the presence of an acid catalyst. The forming product is separated by precipitation or by removing any unreacted alcohol by evaporation. In the products according to the invention the good properties of starch derivatives, such as the excellent water resistance of esters, are combined with the versatility of transglycoside products. The products can be used as adhesives, in which case they are formulated, for example as hot-melt adhesives, and as comonomers, prepolymers or macroinitiators in the preparation of polymers.
    Type: Grant
    Filed: February 17, 2003
    Date of Patent: February 21, 2012
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Soili Peltonen, Hannu Mikkonen, Thomas Gädda
  • Publication number: 20080206578
    Abstract: Thin films are disclosed that are suitable as thin films in IC's and for other similar applications. In particular, the invention concerns thin films comprising compositions obtainable by hydrolysis of two or more silicon compounds, which yield an at least partially cross-linked siloxane structure. The invention also concerns a method for producing such films by preparing siloxane compositions by hydrolysis of suitable reactants, by applying the hydrolyzed compositions on a substrate in the form of a thin layer and by curing the layer to form a high silicon content film.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 28, 2008
    Inventors: Juha T. Rantala, Thomas Gadda, Jyri Paulasaari
  • Publication number: 20050107603
    Abstract: The invention relates to novel transglycosylation products and their preparation. The transglycosylation products according to the invention are prepared from starch derivatives, such as esters or ethers of starch. The products are obtained by reacting a starch derivative with an alcohol in the presence of an acid catalyst. The forming product is separated by precipitation or by removing any unreacted alcohol by evaporation. In the products according to the invention the good properties of starch derivatives, such as the excellent water resistance of esters, are combined with the versatility of transglycoside products. The products can be used as adhesives, in which case they are formulated, for example as hot-melt adhesives, and as comonomers, prepolymers or macroinitiators in the preparation of polymers.
    Type: Application
    Filed: February 17, 2003
    Publication date: May 19, 2005
    Applicant: Valtion teknillinen tutkimuskeskus
    Inventors: Soili Peltonen, Hannu Mikkonen, Thomas Gadda