Patents by Inventor Juha Rantala

Juha Rantala 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: 20080188032
    Abstract: A method of producing a polymer composition for semiconductor optoelectronics, comprising the steps of providing at least one type of disilane monomer which is homo- or copolymerized to form a (co)polymer and then combined with nanoparticles to provide a polymer composition. The nanoparticle containing composition has excellent properties with high refractive index or dielectric constant.
    Type: Application
    Filed: December 13, 2007
    Publication date: August 7, 2008
    Inventor: Juha Rantala
  • Publication number: 20070190800
    Abstract: Method for forming a low dielectric constant structure on a semiconductor substrate by CVD processing. The method comprises using a precursor containing chemical compound having the formula of (R1—R2)n-Si—(X1)4-n, wherein X1 is hydrogen, halogen, acyloxy, alkoxy or OH group, R2 is an optional group and comprises an aromatic group having 6 carbon atoms and R1 is a substituent at position 4 of R2 selected from an alkyl group having from 1 to 4 carbon atoms, an alkenyl group having from 2 to 5 carbon atoms, an alkynyl group having from 2 to 5 carbon atoms, Cl or F; n is an integer 1-3. The present precursors allow for a lowering of the electronic dielectric constant compared to conventional dielectric materials, such as silicon dioxide or phenyl modified organo-containing silicon dioxide.
    Type: Application
    Filed: July 8, 2004
    Publication date: August 16, 2007
    Inventor: Juha Rantala
  • Publication number: 20070077779
    Abstract: A method for making an integrated circuit is disclosed as comprising depositing alternating regions of electrically conductive and dielectric materials on a substrate, wherein an area of dielectric material is formed by: a silane precursor having a fully or partially fluorinated first organic group comprising an unsaturated carbon-carbon double bond, the fully or partially fluorinated organic group bound to silicon in the silane precursor; forming from the silane precursor a hybrid organic-inorganic material having a molecular weight of at least 500 on a substrate; and increasing the molecular weight of the hybrid material by exposure to heat, electromagnetic radiation or electron beam so as to break the unsaturated carbon-carbon double bond and cross link via the fully or partially fluorinated organic group.
    Type: Application
    Filed: December 1, 2006
    Publication date: April 5, 2007
    Inventors: Juha Rantala, Jason Reid, T. Teemu Tormanen, Nungavram Viswanathan, Arto Maaninen
  • Publication number: 20070063188
    Abstract: The present invention relates to thin films suitable as dielectrics in integrated circuits and for other similar applications and to methods for the production thereof. In particular, the invention concerns thin films comprising at least partially cross-linked siloxane structures obtainable by hydrolysis of one or more silicon compounds of the general formula R1—R2—Si—(X1)3, wherein X1 is a leaving group, R2 is a cycloalkyl having from 3 to 16 carbon atoms, an aryl having from 5 to 18 carbon atoms or a polycyclic alkyl group having from 7 to 16 carbon atoms, and R1 is a substituent of R2 selected from alkyl groups having from 1 to 4 carbon atoms, alkenyl groups having from 2 to 5 carbon atoms, alkynyl groups having from 2 to 5 carbon atoms, and aromatic groups having 5 or 6 carbon atoms, each of said groups being optionally substituted, and Cl and F.
    Type: Application
    Filed: April 13, 2004
    Publication date: March 22, 2007
    Inventors: Juha Rantala, Jyri Paulasaari, Jarkko Pietikainen, Teemu Tormanen, Nigel Hacker, Nungavaram Viswanathan
  • Patent number: 7161019
    Abstract: A compound of the general formula R1MR4R5R6 is provided where R1 is a partially or fully fluorinated aryl, alkyl, alkenyl or alkynyl group, wherein M is selected from group 14 of the periodic table, wherein R4, R5 and R6 are independently an alkoxy group OR3 or a halogen group X—except, a) where R4, R5 and R6 are each ethoxy, M is Si and R1 is perfluorinated phenyl or perfluorinated vinyl; b) where R4 is ethoxy, R5 and R6 are chlorine, M is Si, and R1 is perfluorinated phenyl; or c) where R4, R5 and R6 are chlorine, M is Si, and R1 is perfluorinated phenyl, perfluorinated methyl or perfluorinated vinyl. This compound formed can be further reacted to attach an additional organic R group, and/or hydrolyzed, alone or with one or more similar compounds, to form a material having a molecular weight of from 500 to 10,000, which material can be deposited on various substrates as a coating or deposited and patterned for a waveguide or other optical device components.
    Type: Grant
    Filed: June 8, 2004
    Date of Patent: January 9, 2007
    Assignee: Silecs Oy
    Inventors: Juha A. Rantala, Arto L. T. Maaninen, Tina J. Maaninen, Jarkko J. Pietikainen
  • Publication number: 20060293478
    Abstract: A method for producing a polymer for semiconductor optoelectronics, comprising the steps of providing a monomer is produced having the formula: wherein: R1 is a hydrolysable group R2 is hydrogen, and R3 is a bridging linear or branched bivalent hydrocarbyl group, said monomer being produced by hydrosilylation of the corresponding starting materials, and homo- or copolymerizing the monomer to produce a polymer.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 28, 2006
    Inventors: Juha Rantala, Jyri Paulasaari, Jarkko Pietikainen
  • Publication number: 20060293482
    Abstract: A thin film comprising a composition obtained by polymerizing a monomer having the formula I: wherein: R1 is a hydrolysable group, R2 is an organic crosslinking group, a reactive cleaving group or a polarizability reducing organic group, and R3 is a bridging linear or branched bivalent hydrocarbyl group to form a siloxane material. The organo-functionalized molecule is capable of further reacting in the matrix so as to undergo cross-linking, cleaving or combination of both. The present invention provides excellent chemical resistance and very low chemical adsorption behavior due to high cross-linking bridging group density.
    Type: Application
    Filed: June 13, 2006
    Publication date: December 28, 2006
    Inventors: Juha Rantala, Jyri Paulasaari, Jarkko Pietikainen
  • Publication number: 20060258146
    Abstract: A method for making an integrated circuit. An area of dielectric material is formed on a substrate by hydrolyzing a plurality of precursors to form a hybrid organic inorganic material. One of the precursors is a compound R1R2R3SiR4, wherein R1, R2, R3 are each independently aryl, a cross linkable group, or alkyl of 1-14 carbons, and wherein R4 is alkoxy, acyloxy, —OH or halogen. Also disclosed is a method for forming a hybrid organic inorganic layer on a substrate by hydrolyzing a tetraalkoxysilane, trialkoxysilane, trichlorosilane, dialkoxysilane, or dichlorosilane, with R1R2R4MR5, wherein R1, R2 and R4 are independently aryl, alkyl, alkenyl, epoxy or alkynyl, at least one of R1, R2 and R4 is fully or partially fluorinated, M is selected from group 14 of the periodic table, and R5 is either alkoxy, OR3 wherein R3 is alkyl of 1 to 10 carbons, or halogen.
    Type: Application
    Filed: July 20, 2006
    Publication date: November 16, 2006
    Inventors: Juha Rantala, Jason Reid, T. Tormanen, Nungavram Viswanathan
  • Patent number: 7098346
    Abstract: A compound of the general formula: R1R2R4MR5, wherein R1, R2 and R4 are independently an aryl, alkyl, alkenyl or alkynyl group, wherein at least one of R1, R2 and R4 is fully or partially fluorinated, wherein M is selected from group 14 of the periodic table, and wherein R5 is either an alkoxy group, OR3, or a halogen group, X. This compound formed can be further reacted to attach an additional organic R group, and/or hydrolyzed with one or more similar compounds (preferably having one or two R groups bound to M), to form a material having a molecular weight of from 500 to 10,000, which material can be deposited on various substrates as a coating or deposited and patterned for a waveguide or other optical device components. Methods for making and using compounds of the general formula R1R2R4MR5 are also disclosed.
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: August 29, 2006
    Assignee: Silecs Oy
    Inventors: Juha A. Rantala, Arto L. T. Maaninen, Tiina J. Maaninen, Jarkko J. Pietikainen
  • Publication number: 20060180900
    Abstract: A low dielectric constant polymer, comprising monomeric units derived from a compound having the general formula I (R1—R2)n—Si—(X1)4-n, wherein each X1 is independently selected from hydrogen and inorganic leaving groups, R2 is an optional group and comprises an alkylene having 1 to 6 carbon atoms or an arylene, R1 is a polycycloalkyl group and n is an integer 1 to 3. The polymer has excellent electrical and mechanical properties.
    Type: Application
    Filed: April 13, 2004
    Publication date: August 17, 2006
    Inventors: Juha Rantala, Jyri Paulasaari, Janne Kylma
  • Publication number: 20060131753
    Abstract: An integrated circuit is provided comprising a substrate and discrete areas of electrically insulating and electrically conductive material, wherein the electrically insulating material is a hybrid organic-inorganic material that has a density of 1.45 g/cm3 or more and a dielectric constant of 3.0 or less. The integrated circuit can be made by a method comprising: providing a substrate; forming discrete areas of electrically insulating and electrically conductive material on the substrate; wherein the electrically insulating material is deposited on the substrate followed by heating at a temperature of 350° C. or less; and wherein the electrically insulating material is a hybrid organic-inorganic material that has a density of 1.45 g/cm3 or more after densification.
    Type: Application
    Filed: January 30, 2006
    Publication date: June 22, 2006
    Inventors: Juha Rantala, Jason Reid, Nungavram Viswanathan, T. Teemu Tormanen
  • Publication number: 20060057801
    Abstract: Thin films are disclosed that are suitable as dielectrics 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 film. In one example, a thin film comprising a composition is obtained by hydrolyzing a monomeric silicon compound having at least one hydrocarbyl radical, containing an unsaturated carbon-to-carbon bond, and at least one hydrolyzable group attached to the silicon atom of the compound with another monomeric silicon compound having at least one aryl group and at least one hydrolyzable group attached to the silicon atom of the compound to form a siloxane material.
    Type: Application
    Filed: August 29, 2005
    Publication date: March 16, 2006
    Inventors: Juha Rantala, Jason Reid, Nungavram Viswanathan, T.Teemu Tormanen
  • Publication number: 20060058487
    Abstract: A thin film comprising a composition obtained by polymerizing a monomer having the formula I: wherein: R1 is a hydrolysable group, R2 is a polarizability reducing organic group, and R3 is a bridging hydrocarbon group, to form a siloxane material. The invention also concerns methods for producing the thin films. The thin film can be used a low k dielectric in integrated circuit devices. The novel dielectric materials have excellent properties of planarization resulting in good local and global planarity on top a semiconductor substrate topography, which reduces or eliminates the need for chemical mechanical planarization after dielectric and oxide liner deposition.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 16, 2006
    Inventors: Juha Rantala, Jyri Paulasaari, Janne Kylma, Turo Tormanen, Jarkko Pietikainen, Nigel Hacker, Admir Hadzic
  • Publication number: 20050154212
    Abstract: A compound of the general formula: R1R2R4MR5, wherein R1, R2 and R4 are independently an aryl, alkyl, alkenyl or alkynyl group, wherein at least one of R1, R2 and R4 is fully or partially fluorinated, wherein M is selected from group 14 of the periodic table, and wherein R5 is either an alkoxy group, OR3, or a halogen group, X. This compound formed can be further reacted to attach an additional organic R group, and/or hydrolyzed with one or more similar compounds (preferably having one or two R groups bound to M), to form a material having a molecular weight of from 500 to 10,000, which material can be deposited on various substrates as a coating or deposited and patterned for a waveguide or other optical device components. Methods for making and using compounds of the general formula R1R2R4MR5 are also disclosed.
    Type: Application
    Filed: December 8, 2004
    Publication date: July 14, 2005
    Inventors: Juha Rantala, Arto Maaninen, Tiina Maaninen, Jarkko Pietikainen
  • Publication number: 20050101792
    Abstract: A compound of the general formula R1MR4R5R6 is provided where R1 is a partially or fully fluorinated aryl, alkyl, alkenyl or alkynyl group, wherein M is selected from group 14 of the periodic table, wherein R4, R5 and R6 are independently an alkoxy group OR3 or a halogen group X—except, a) where R4, R5 and R6 are each ethoxy, M is Si and R1 is perfluorinated phenyl or perfluorinated vinyl; b) where R4 is ethoxy, R5 and R6 are chlorine, M is Si, and R1 is perfluorinated phenyl; or c) where R4, R5 and R6 are chlorine, M is Si, and R1 is perfluorinated phenyl, perfluorinated methyl or perfluorinated vinyl. This compound formed can be further reacted to attach an additional organic R group, and/or hydrolyzed, alone or with one or more similar compounds, to form a material having a molecular weight of from 500 to 10,000, which material can be deposited on various substrates as a coating or deposited and patterned for a waveguide or other optical device components.
    Type: Application
    Filed: June 8, 2004
    Publication date: May 12, 2005
    Inventors: Juha Rantala, Arto Maaninen, Hiina Maaninen, Jarkko Pietikainen
  • Publication number: 20050064726
    Abstract: A method of forming a low dielectric constant structure. The method comprises providing at a first temperature a dielectric material having a first dielectric constant and a first elastic modulus, and curing the dielectric material by a thermal curing process, in which the material is heated to a second temperature by increasing the temperature at an average rate of at least 1° C. per second. As a result a densified, dielectric material is obtained which has a low dielectric constant.
    Type: Application
    Filed: March 10, 2004
    Publication date: March 24, 2005
    Inventors: Jason Reid, Nigel Hacker, Nina Pirila, Juha Rantala, William McLaughlin
  • Publication number: 20050032357
    Abstract: An integrated circuit device is provided having a substrate and areas of electrically insulating and electrically conductive material, where the electrically insulating material is a hybrid organic-inorganic material that requires no or minimal CMP and which can withstand subsequent processing steps at temperatures of 450° C. or more.
    Type: Application
    Filed: July 8, 2004
    Publication date: February 10, 2005
    Inventors: Juha Rantala, Nigel Hacker, Jason Reid, William McLaughlin, Teemu Tormanen
  • Patent number: 6831189
    Abstract: A method comprises reacting a compound of the general formula R14-mMOR3m wherein m is an integer from 2 to 4, R1 is selected from alkyl, alkenyl, aryl, alkynyl or epoxy, and wherein R1 is nonfluorinated, or fully or partially fluorinated; OR3 is alkoxy; and M is an element selected from group 14 of the periodic table; with a compound of the general formula R2M1 wherein R2 is selected from alkyl, alkenyl, aryl, alkynyl or epoxy, and wherein R2 is at least partially fluorinated; and M1 is an element from group I of the periodic table; so as to make a compound of the general formula R14-mMOR3m-1R2.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: December 14, 2004
    Assignee: Silecs Oy
    Inventors: Juha A. Rantala, Arto L. T. Maaninen, Tiina J. Maaninen, Jarkko J. Pietikainen
  • Patent number: 6586268
    Abstract: An optoelectronic component and a method of manufacturing such a component. The component includes at least one pixel comprising a first and a second electrode for electric coupling. An optoelectronically active material is between the electrodes. The optoelectronically active material is a hybrid sol-gel glass that is chemically supplemented with a material affecting the optoelectronic properties. The component is manufactured by spreading the optoelectronically active hybrid sol-gel on the first electrode, hardening the hybrid sol-gel glass by radiation, and forming the second electrode on the optoelectronically active hybrid sol-gel glass.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: July 1, 2003
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Harri Kopola, Juha Rantala, Jouko Vähäkangas, Pentti Karioja