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: 20220162391Abstract: 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: ApplicationFiled: February 25, 2020Publication date: May 26, 2022Inventors: Thomas Gädda, Luong Dang Nguyen, Markus Laukkanen, Kimmo Karaste, Oskari Kähkönen, Juha Rantala
-
Patent number: 11214704Abstract: 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: GrantFiled: December 9, 2019Date of Patent: January 4, 2022Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OYInventors: Thomas Gadda, Minni Pirttimaa, Ali Harlin, Mika Harkonen
-
Publication number: 20210311394Abstract: 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: ApplicationFiled: August 12, 2019Publication date: October 7, 2021Inventors: Thomas Gädda, Luong Dang Nguyen, Markus Laukkanen, Kimmo Karaste, Juha Rantala, Jonathan Glen
-
Publication number: 20200109310Abstract: 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: ApplicationFiled: December 9, 2019Publication date: April 9, 2020Inventors: Thomas Gadda, Minni Pirttimaa, Ali Harlin, Mika Harkonen
-
Patent number: 10510551Abstract: 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: GrantFiled: December 9, 2016Date of Patent: December 17, 2019Assignee: PIBOND OYInventors: Juha T. Rantala, Thomas Gadda, Wei-Min Li, David A. Thomas, William McLaughlin
-
Patent number: 10227446Abstract: 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: GrantFiled: November 6, 2015Date of Patent: March 12, 2019Assignee: Teknologian tutkimuskeskus VTT OyInventors: Leena Nurmi, Thomas Gädda
-
Publication number: 20180201724Abstract: 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: ApplicationFiled: November 6, 2015Publication date: July 19, 2018Inventors: Leena Nurmi, Thomas Gädda
-
Publication number: 20170306511Abstract: 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: ApplicationFiled: August 27, 2015Publication date: October 26, 2017Inventors: Juha RANTALA, Thomas GADDA
-
Publication number: 20170200615Abstract: 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: ApplicationFiled: December 9, 2016Publication date: July 13, 2017Inventors: Juha T. Rantala, Thomas Gadda, Wei-Min Li, David A. Thomas, William McLaughlin
-
Patent number: 9657147Abstract: 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: GrantFiled: May 23, 2012Date of Patent: May 23, 2017Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OYInventors: Jun Shan, Mika Härkönen, Jarmo Ropponen, Ali Harlin, Harri Heikkinen, Virpi Rämö, Thomas Gädda, Leena Nurmi, Pia Willberg-Keyriläinen
-
Patent number: 9564339Abstract: 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: GrantFiled: March 29, 2010Date of Patent: February 7, 2017Assignee: Pibond OyInventors: Juha T. Rantala, Thomas Gädda, Wei-Min Li, David A. Thomas, William McLaughlin
-
Publication number: 20160060387Abstract: 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: ApplicationFiled: November 6, 2015Publication date: March 3, 2016Inventors: Thomas Gadda, Minni Pirttimaa, Ali Harlin, Mika Harkonen
-
Publication number: 20140309366Abstract: 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: ApplicationFiled: May 23, 2012Publication date: October 16, 2014Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Jun SHAN, Mika HÄRKÖNEN, Jarmo ROPPONEN, Ali HARLIN, Harri HEIKKINEN, Virpi RÄMÖ, Thomas GÄDDA, Leena NURMI, Pia WILLBERG-KEYRILÄINEN
-
Publication number: 20130143408Abstract: 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: ApplicationFiled: March 29, 2010Publication date: June 6, 2013Applicant: SILECS OYInventors: Juha T Rantala, Thomas Gädda, Wei-Min Li, David A. Thomas, William McLaughlin
-
Patent number: 8133965Abstract: 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: GrantFiled: February 21, 2008Date of Patent: March 13, 2012Assignee: Silecs, Inc.Inventors: Juha T. Rantala, Thomas Gädda, Jyri Paulasaari
-
Patent number: 8119792Abstract: 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: GrantFiled: February 17, 2003Date of Patent: February 21, 2012Assignee: Valtion Teknillinen TutkimuskeskusInventors: Soili Peltonen, Hannu Mikkonen, Thomas Gädda
-
Publication number: 20080206578Abstract: 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: ApplicationFiled: February 21, 2008Publication date: August 28, 2008Inventors: Juha T. Rantala, Thomas Gadda, Jyri Paulasaari
-
Publication number: 20050107603Abstract: 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: ApplicationFiled: February 17, 2003Publication date: May 19, 2005Applicant: Valtion teknillinen tutkimuskeskusInventors: Soili Peltonen, Hannu Mikkonen, Thomas Gadda