Patents by Inventor Ruzhi Zhang

Ruzhi Zhang 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: 20190181307
    Abstract: The present disclosure discloses a prepackaging structure of a semiconductor light emitting device, comprising: a semiconductor luminescent appliance, and a pressure sensitive phosphor film directly bonded to a luminous surface of the semiconductor luminescent appliance, wherein the pressure sensitive phosphor film comprises a base body formed by precuring an organosilicone composition, and phosphor particles are uniformly dispersed in the base body. The present disclosure further discloses a semiconductor light emitting device, comprising: a semiconductor luminescent appliance, and a fully cured body of a pressure sensitive phosphor film directly bonded to a luminous surface of the semiconductor luminescent appliance.
    Type: Application
    Filed: September 4, 2017
    Publication date: June 13, 2019
    Inventor: Ruzhi Zhang
  • Patent number: 8871425
    Abstract: This invention relates generally to silicon based photoresist compositions that can be used in forming low k dielectric constant materials suitable for use in electronic devices, methods of their use and the electronic devices made therefrom.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: October 28, 2014
    Assignee: AZ Electronic Materials (Luxembourg) S.A.R.L.
    Inventors: Ruzhi Zhang, Jihoon Kim, Bharatkumar K. Patel, Elizabeth Wolfer
  • Patent number: 8524441
    Abstract: A polymer comprising a siloxane polymer having at least one Si—OH group and at least one Si—OR group, where R is condensation stabilizing group optionally having a reactive functional group, wherein the siloxane polymer, when placed into a solvent, has a weight average molecular weight increase of less than or equal to 50% after aging for one week at 40° C. as measured by GPC is provided.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: September 3, 2013
    Assignees: AZ Electronic Materials USA Corp., Braggone Oy
    Inventors: Ruzhi Zhang, WooKyu Kim, David J. Abdallah, PingHung Lu, Mark O. Neisser, Ralph R. Dammel, Ari Karkkainen
  • Publication number: 20130209754
    Abstract: This invention relates generally to silicon based photoresist compositions that can be used in forming low k dielectric constant materials suitable for use in electronic devices, methods of their use and the electronic devices made therefrom.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 15, 2013
    Applicant: AZ ELECTRONIC MATERIALS USA CORP.
    Inventors: Ruzhi ZHANG, Jihoon KIM, Bharatkumar K. PATEL, Elizabeth WOLFER
  • Patent number: 8026201
    Abstract: The invention relates to compositions and methods of removing silicon-based anti-reflective coatings/hardmask layers.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: September 27, 2011
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Ruzhi Zhang, Ping-Hung Lu
  • Patent number: 8026040
    Abstract: The present invention relates to a composition comprising: (a) a polymer having at least one repeating unit of formula where R1 is a non-hydrolysable group and n is an integer ranging from 1 to 3; and (b) a crosslinking catalyst. The composition is useful in forming low k dielectric constant materials and as well as hard mask and underlayer materials with anti-reflective properties for the photolithography industry.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: September 27, 2011
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Hengpeng Wu, WooKyu Kim, Hong Zhuang, PingHung Lu, Mark Neisser, David Abdallah, Ruzhi Zhang
  • Patent number: 8017296
    Abstract: The present invention relates to an organic spin coatable antireflective coating composition comprising a polymer comprising at least one unit with 3 or more fused aromatic rings in the backbone of the polymer and at least one unit with an aliphatic moeity in the backbone of the polymer. The invention further relates to a process for imaging the present composition.
    Type: Grant
    Filed: October 16, 2007
    Date of Patent: September 13, 2011
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: Francis Houlihan, David Abdallah, M. Dalil Rahman, Douglas McKenzie, Ruzhi Zhang, Allen G. Timko, WooKyu Kim, Ping-Hung Lu
  • Publication number: 20100316949
    Abstract: The present invention relates to an organic spin on hard mask antireflective coating composition comprising a polymer comprising at least one unit of fused aromatic rings in the backbone of the polymer and at least one unit with a cycloaliphatic moiety in the backbone of the polymer. The invention further relates to a process for making the polymer and a process for imaging the present composition.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Inventors: M. Dalil Rahman, Douglas McKenzie, Guanyang Lin, Jianhui Shan, Ruzhi Zhang, Mark Neisser
  • Patent number: 7736837
    Abstract: The present invention relates to an antireflecting coating composition which is capable of forming a crosslinked coating underneath a layer of photoresist comprising a silicon polymer, where the silicon polymer comprises at least one unit with the structure 1, where, R1 is selected from C1-C4 alkyl. The invention also relates to a process for imaging this composition.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: June 15, 2010
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: David Abdallah, Ruzhi Zhang
  • Patent number: 7704670
    Abstract: High silicon-content resin composition that can be used to form thin film thermosets, useful in forming low k dielectric constant materials and as well as hard mask materials with anti-reflective properties for the photolithography industry are disclosed.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: April 27, 2010
    Assignee: AZ Electronic Materials USA Corp.
    Inventors: David J. Abdallah, Ruzhi Zhang
  • Publication number: 20100092895
    Abstract: A polymer comprising a siloxane polymer having at least one Si—OH group and at least one Si—OR group, where R is condensation stabilizing group optionally having a reactive functional group, wherein the siloxane polymer, when placed into a solvent, has a weight average molecular weight increase of less than or equal to 50% after aging for one week at 40° C. as measured by GPC is provided.
    Type: Application
    Filed: February 25, 2008
    Publication date: April 15, 2010
    Inventors: Ruzhi Zhang, Wookyu Kim, David J. Abdallah, PingHung Lu, Mark O. Neissor, Ralph R. Dammel, Ari Karkkainen
  • Publication number: 20100093969
    Abstract: The present invention relates to process for making a siloxane polymer which comprises at least one Si—OH group and at least one Si—OR group, where R is a moiety other than hydrogen, comprising reacting one or more silane reactants together in the presence of a hydrolysis catalyst in either a water/alcohol mixture or in one or more alcohols to form the siloxane polymer; and separating the siloxane polymer from the water/alcohol mixture or the alcohol(s).
    Type: Application
    Filed: February 25, 2008
    Publication date: April 15, 2010
    Inventors: Ruzhi Zhang, David Abdallah, PingHung Lu, Mark Neisser
  • Patent number: 7666575
    Abstract: The present invention relates to an antireflective coating composition comprising, (i) a thermal acid generator; (ii) a crosslinkable polymer comprising at least one aromatic group; and, (iii) a polymeric crosslinker comprising at least one unit of structure (6), where R11 to R13 is independently selected from H, (C1-C6) alkyl and aromatic group, R14 and R15 are independently (C1-C10) alkyl. The invention also relates to a process for imaging the antireflective coating composition of the present invention.
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: February 23, 2010
    Assignee: AZ Electronic Materials USA Corp
    Inventors: Woo-Kyu Kim, Hengpeng Wu, David Abdallah, Mark Neisser, PingHung Lu, Ruzhi Zhang, M. Dalil Rahman
  • Publication number: 20090162800
    Abstract: The process of the present invention relates to imaging a photoresist film coated over an antireflective coating film comprising a) forming an antireflective coating film from an antireflective coating composition, where the composition comprises a siloxane polymer, b) treating the antireflective film with an aqueous alkaline treating solution, c) rinsing the antireflective film treated with an aqueous rinsing solution, d) forming a coating of a photoresist over the film of the antireflective coating composition, e) imagewise exposing the photoresist film, and, f) developing the photoresist with an aqueous alkaline developing solution.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Inventors: David Abdallah, Alberto Dioses, Allen Timko, Ruzhi Zhang
  • Patent number: 7528404
    Abstract: An assembly of a semiconductor die attached to a substrate is made with a composition comprising compounds that contain an oxazoline functionality and an electron acceptor or an electron donor functionality. Electron donor functionalities include styrenic, cinnamyl, and vinyl ether groups. Electron acceptor functionalities include maleimide, acrylate, fumarate, and maleate groups. An exemplary compound has the structure: formula (I).
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: May 5, 2009
    Assignee: Henkel AG & Co. KGaA
    Inventors: Osama M. Musa, Ruzhi Zhang
  • Publication number: 20080292987
    Abstract: The present invention relates to an organic spin coatable antireflective coating composition comprising a polymer comprising at least one unit with 3 or more fused aromatic rings in the backbone of the polymer and at least one unit with an aliphatic moeity in the backbone of the polymer. The invention further relates to a process for imaging the present composition.
    Type: Application
    Filed: May 22, 2007
    Publication date: November 27, 2008
    Inventors: Francis Houlihan, David Abdallah, M. Dalil Rahman, Douglas McKenzie, Ruzhi Zhang
  • Publication number: 20080292995
    Abstract: The present invention relates to an organic spin coatable antireflective coating composition comprising a polymer comprising at least one unit with 3 or more fused aromatic rings in the backbone of the polymer and at least one unit with an aliphatic moeity in the backbone of the polymer. The invention further relates to a process for imaging the present composition.
    Type: Application
    Filed: October 16, 2007
    Publication date: November 27, 2008
    Inventors: Francis Houlihan, David Abdallah, M. Dalil Rahman, Douglas McKenzie, Ruzhi Zhang, Allen G. Timko, Wookyu Kim, Ping-Hung Lu
  • Publication number: 20080199789
    Abstract: The present invention relates to an antireflecting coating composition which is capable of forming a crosslinked coating underneath a layer of photoresist comprising a silicon polymer, where the silicon polymer comprises at least one unit with the structure 1, where, R1 is selected from C1-C4 alkyl. The invention also relates to a process for imaging this composition.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 21, 2008
    Inventors: David Abdallah, Ruzhi Zhang
  • Publication number: 20080196626
    Abstract: The present invention relates to a composition comprising: (a) a polymer having at least one repeating unit of formula where R1 is a non-hydrolysable group and n is an integer ranging from 1 to 3; and (b) a crosslinking catalyst. The composition is useful in forming low k dielectric constant materials and as well as hard mask and underlayer materials with anti-reflective properties for the photolithography industry.
    Type: Application
    Filed: February 20, 2007
    Publication date: August 21, 2008
    Inventors: Hengpeng Wu, WooKyu Kim, Hong Zhuang, PingHung Lu, Mark Neisser, David Abdallah, Ruzhi Zhang
  • Publication number: 20080161217
    Abstract: The invention relates to compositions and methods of removing silicon-based anti-reflective coatings/hardmask layers.
    Type: Application
    Filed: January 3, 2007
    Publication date: July 3, 2008
    Inventors: Ruzhi Zhang, Ping-Hung Lu