Patents by Inventor Juha T. Rantala

Juha T. 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).

  • 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
  • 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: 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
  • Patent number: 9190616
    Abstract: Synthesis of thianthrene moiety containing silane and germane monomers and their polymerization is presented. The polymers show high refractive index, high transparency and excellent thermal stability. They are useful as dielectric films for semiconductor industry and for optical applications, including high-RI materials in CMOS image sensors.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 17, 2015
    Assignee: Silecs Oy
    Inventors: Jyri Paulasaari, Juha T. Rantala
  • Patent number: 9128235
    Abstract: An optical light diffuser component and a method of producing the same. The component includes at least one substrate material with an index of refraction of n1 and at least one optical coating on the substrate having an index of refraction of n2. The indices n1 and n2 are different. The optical light diffuser component produces uniform and diffuse light pattern from spot like light source, such as LED lamp, in terms of high optical transmission. The optical transmission is better than 90% at the visible spectrum of the light.
    Type: Grant
    Filed: August 11, 2009
    Date of Patent: September 8, 2015
    Assignee: Greenlux Finland Oy
    Inventors: Mikael Broman, Graeme Gordon, Juha T. Rantala
  • Publication number: 20140288260
    Abstract: Synthesis of thianthrene moiety containing silane and germane monomers and their polymerization is presented. The polymers show high refractive index, high transparency and excellent thermal stability. They are useful as dielectric films for semiconductor industry and for optical applications, including high-RI materials in CMOS image sensors.
    Type: Application
    Filed: June 14, 2012
    Publication date: September 25, 2014
    Applicant: SILECS OY
    Inventors: Jyri Paulasaari, Juha T. Rantala
  • Publication number: 20140217539
    Abstract: A semiconductor device comprising a semiconductor substrate with a plurality of photo-diodes arranged in the semiconductor substrate with interconnect layers defining apertures at the photo-diodes and a first polymer which fills the gaps such as to cover the photo-diode. Further, layers of color filters are arranged on top the gap filling polymer layer opposite to the photo-diodes and a second polymer arranged on the interconnect layers covers and planarizes and passivates the color filter layers. On top of the planarizing polymer there is a plurality of micro-lenses opposite to the color filters, and a third polymer layer is deposited on the micro-lenses for passivating the micro-lenses. According to the invention the polymer materials are comprised of a siloxane polymer which gives thermally and mechanically stable, high index of refraction, dense dielectric films exhibiting high-cracking threshold, low pore volume and pore size.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 7, 2014
    Applicant: Silecs Oy
    Inventor: Juha T. Rantala
  • 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
  • Publication number: 20110134533
    Abstract: An optical light diffuser component and a method of producing the same. The component comprises at least one substrate material with an index of refraction of n1 and at least one optical coating on the substrate with having an index of refraction of n2. The indices n1 and n2 are different. The optical light diffuser component produces uniform and diffuse light pattern from spot like light source, such as LED lamp, in terms of high optical transmission. The optical transmission is better than 90% at the visible spectrum of the light.
    Type: Application
    Filed: August 11, 2009
    Publication date: June 9, 2011
    Applicant: GREENLUX FINLAND OY
    Inventors: Mikael Broman, Graeme Gordon, Juha T. Rantala
  • Patent number: 7955660
    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: Grant
    Filed: September 30, 2009
    Date of Patent: June 7, 2011
    Assignee: Silecs Oy
    Inventors: Juha T. Rantala, Jyri Paulasaari, Jarkko Pietikäinen
  • Publication number: 20100317179
    Abstract: A method for making an integrated circuit device by: forming a plurality of transistors on a semiconductor substrate; forming multilayer interconnects by depositing a layer of metal; patterning the metal layer; depositing a first dielectric material, depositing a second dielectric material, patterning the first and second dielectric materials; and depositing a via filling metal material into the patterned areas; or, alternatively, by forming transistors on a substrate; depositing one of an electrically insulating or electrically conducting material; patterning said one of an electrically insulating or electrically conducting material; and depositing the other of the electrically insulating or electrically conducting material, so as to form a layer over said transistors having both electrically insulating and electrically conducting portions; wherein the first dielectric material, which is an organosiloxane material, and the electrically insulating material each has a carbon to silicon ratio of 1.
    Type: Application
    Filed: March 16, 2009
    Publication date: December 16, 2010
    Inventors: Juha T. RANTALA, Jyri PAULASAARI, Janne KYLMA, Turo T. TORMANEN, Jarkko PIETIKAINEN, Nigel HACKER, Admir HADZIC
  • Publication number: 20100215839
    Abstract: A method for making an integrated circuit is disclosed comprising depositing alternating regions of electrically conductive material and hybrid organic inorganic dielectric material on a substrate, wherein an area of dielectric material is formed by hydrolyzing a plurality of precursors to form a hybrid organic inorganic material comprised of a silicon oxide backbone and having an organic substituent bound to the backbone, and depositing the hybrid organic inorganic material on a substrate, removing the hybrid organic-inorganic material in selected areas, and depositing an electrically conductive material in the selected areas, wherein one of the precursors is a compound of the general formula R1R2R3SiR4, wherein R1, R2, R3 are each bound to the Si and are independently an aryl group, a cross linkable group, or an alkyl group having from 1-14 carbons, and wherein R4 is selected from the group consisting of an alkoxy group, an acyloxy group, an —OH group or a halogen.
    Type: Application
    Filed: October 13, 2009
    Publication date: August 26, 2010
    Inventors: Juha T. Rantala, Jason S. Reid, T. Teemu Tormanen, Nungavram Viswanathan
  • Publication number: 20100136798
    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: September 30, 2009
    Publication date: June 3, 2010
    Inventors: Juha T. Rantala, Jyri Paulasaari, Jarkko Pietikäinen
  • Patent number: 7646081
    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: Grant
    Filed: July 8, 2004
    Date of Patent: January 12, 2010
    Assignee: Silecs Oy
    Inventor: Juha T. Rantala
  • Patent number: 7643717
    Abstract: Waveguides are disclosed (and other devices and materials including but not limited to hybrid organic-inorganic coatings, passivation materials, glob top materials, underfill materials, materials for IC and other applications, microlenses and any of a wide variety of optical devices) that benefit by being formed of a novel hybrid organic-inorganic material. In one embodiment of the invention, a method for making a waveguide includes: forming a lower cladding layer on a substrate; forming a core layer after the lower cladding layer; and forming an upper cladding layer after the core layer; wherein the lower cladding layer, core layer and/or upper cladding layer comprises a hybrid organic-inorganic material—that has many desirable properties relating to stability, hydrophobicity, roughness, optical absorbance, polarization dependent loss, among others.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 5, 2010
    Assignee: Silecs Oy
    Inventors: Juha T. Rantala, Arto L. T. Maaninen, T. Teemu T. Tormanen, Tiina J. Maaninen, Jarkko J. Pietikainen
  • Publication number: 20090278254
    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: December 1, 2008
    Publication date: November 12, 2009
    Inventors: Juha T. Rantala, Nigel Hacker, Jason Reid, William McLaughlin, Teemu T. Tormanen
  • Patent number: 7514709
    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: Grant
    Filed: April 13, 2004
    Date of Patent: April 7, 2009
    Assignee: Silecs Oy
    Inventors: Juha T. Rantala, Jyri Paulasaari, Janne Kylmä
  • Patent number: 7504470
    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: Grant
    Filed: August 31, 2005
    Date of Patent: March 17, 2009
    Assignee: Silecs Oy
    Inventors: Juha T. Rantala, Jyri Paulasaari, Janne Kylmä, Turo T. Törmänen, Jarkko Pietikäinen, Nigel Hacker, Admir Hadzic
  • Patent number: 7479462
    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: Grant
    Filed: August 29, 2005
    Date of Patent: January 20, 2009
    Assignee: Silecs Oy
    Inventors: Juha T. Rantala, Jason S. Reid, Nungavram S. Viswanathan, T.Teemu T. Tormanen