Patents by Inventor Shur-Fen Liu

Shur-Fen Liu 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: 20240084135
    Abstract: A resin composition and uses thereof are provided. The resin composition includes: (A) an epoxy resin; (B) a bismaleimide resin; and (C) a first flame retardant having a structure of formula (I): Wherein Ar is a C3 to C18 heteroaryl or a C6 to C18 aryl; R1 is H or a C1 to C18 alkyl; and R2 and R3 are independently H, a C1 to C18 alkyl, a C3 to C18 heteroaryl, or a C6 to C18 aryl.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 14, 2024
    Inventors: Tsung-Hsien LIN, Shur-Fen LIU, Pin CHIEN, Kai-Cheng YANG
  • Publication number: 20240084063
    Abstract: A solvent-free resin composition and uses thereof are provided. The resin composition includes: (A) a maleic acid-modified liquid hydrocarbon resin; (B) a first filler having a D50 particle size of 1 ?m to 4 ?m; and (C) a second filler having a D50 particle size of 5 ?m to 10 ?m. The solvent-free resin composition can be used to fill the holes of printed circuit boards.
    Type: Application
    Filed: October 24, 2022
    Publication date: March 14, 2024
    Inventors: Jui-Hsiang TANG, Shur-Fen LIU
  • Patent number: 11840047
    Abstract: A metal-clad laminate, a printed circuit board using the same and a method for manufacturing the metal-clad laminate. The metal-clad laminate comprises: a first dielectric layer, comprising a first dielectric material and not comprising a reinforcing fabric, the first dielectric material comprising 20 wt % to 60 wt % of a first fluoropolymer and 40 wt % to 80 wt % of a first filler; a second dielectric layer disposed on one side of the first dielectric layer and comprising a reinforcing fabric and a second dielectric material formed on the surface of the reinforcing fabric, wherein the thickness of the reinforcing fabric is not higher than 65 ?m and the second dielectric material comprises 55 wt % to 100 wt % of a second fluoropolymer and 0 to 45 wt % of a second filler; and a metal foil disposed on the other side of the second dielectric layer that is opposite to the first dielectric layer.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: December 12, 2023
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shi-Ing Huang, Shur-Fen Liu, Kai-Hsiang Lin
  • Patent number: 11818838
    Abstract: A metal-clad laminate is provided. The metal-clad laminate includes: a dielectric layer, which has a first reinforcing material and a dielectric material formed on the surface of the first reinforcing material, wherein the dielectric material includes 60 wt % to 80 wt % of a first fluoropolymer and 20 wt % to 40 wt % of a first filler; an adhesive layer, which is disposed on at least one side of the dielectric layer and includes an adhesive material, wherein the adhesive material has 60 wt % to 70 wt % of a second fluoropolymer and 30 wt % to 40 wt % of a second filler; and a metal foil, which is disposed on the other side of the adhesive layer that is opposite to the dielectric layer, wherein the melting point of the second fluoropolymer is lower than the melting point of the first fluoropolymer.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: November 14, 2023
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Wen-Ren Chen, Shi-Ing Huang, Shur-Fen Liu
  • Patent number: 11802198
    Abstract: A fluororesin composition is provided. The fluororesin composition comprises the following constituents: (A) a first fluororesin, which is polytetrafluoroethylene (PTFE) resin; (B) a first filler, which is a flat glass fiber; and (C) particles of a second fluororesin, which are coated with polysiloxane, wherein, the particle size of the polysiloxane-coated particles of second fluororesin ranges from 0.2 ?m to 80 ?m, and the melting point of the second fluororesin is lower than the melting point of the first fluororesin.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: October 31, 2023
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Shi-Ing Huang
  • Patent number: 11667743
    Abstract: A resin composition is provided. The resin composition comprises: (A) a compound having a structure of formula (I), wherein R1 is an organic group; and (B) a vinyl-containing elastomer, wherein the weight ratio of the compound having the structure of formula (I) to the vinyl-containing elastomer is 20:1 to 1:1.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: June 6, 2023
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Jau-Yu Chiou, Jen-Chi Chiang
  • Publication number: 20230143461
    Abstract: A resin composition and uses of the same are provided. The resin composition includes the following components: (A) a cross-linking agent of the following formula (I): (B) a polyphenylene ether resin, wherein the terminal ends of the polyphenylene ether resin are independently modified by a substituent with a carbon-carbon double bond; and (C) a catalyst, wherein, X in formula (I) is a C1 to C10 straight or branched alkylene, and the weight ratio of the polyphenylene ether resin (B) to the cross-linking agent (A) ranges from 0.5 to 5.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 11, 2023
    Inventors: Shur-Fen LIU, Meng-Huei CHEN, Jen-Chi CHIANG
  • Patent number: 11529797
    Abstract: A method of manufacturing a metal-clad laminate and uses of the same are provided. The method comprises the following steps: (a) impregnating a reinforcement material with a first fluoropolymer solution, and drying the impregnated reinforcement material under a first temperature to obtain a first prepreg; (b) impregnating the first prepreg with a second fluoropolymer solution, and drying the impregnated first prepreg under a second temperature to obtain a second prepreg; and (c) laminating the second prepreg and a metal-clad to obtain a metal-clad laminate, wherein the first fluoropolymer solution has a first fluoropolymer, the second fluoropolymer solution has a second fluoropolymer, and the first fluoropolymer and the second fluoropolymer are different.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: December 20, 2022
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Wen-Ren Chen, Shur-Fen Liu
  • Patent number: 11345813
    Abstract: A resin composition is provided.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: May 31, 2022
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Chin-Hsien Hung
  • Patent number: 11312829
    Abstract: A prepreg is provided. The prepreg is prepared by impregnating a liquid crystal polymer non-woven fabric with a thermal-curable resin composition or by coating a thermal-curable resin composition onto a liquid crystal polymer non-woven fabric and drying the impregnated or coated liquid crystal polymer non-woven fabric, wherein the thermal-curable resin composition includes: (A) an unsaturated monomer; and (B) a cyclic olefin copolymer including the following repeating units: (B-1) a repeating unit of formula (I), (B-2) a repeating unit of formula (II), and (B-3) a repeating unit of formula (III), R1 to R22, m, n, o, and p in formulas (I) to (III) are as defined in the specification, wherein based on the total moles of the repeating units (B-1) to (B-3), the content of the repeating unit (B-2) is 19 mol % to 36 mol %, and wherein the weight ratio of the cyclic olefin copolymer (B) to the unsaturated monomer (A) is 0.5 to 7.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: April 26, 2022
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Chin-Hsien Hung
  • Publication number: 20210380792
    Abstract: A fluororesin composition is provided. The fluororesin composition comprises the following constituents: (A) a first fluororesin, which is polytetrafluoroethylene (PTFE) resin; (B) a first filler, which is a flat glass fiber; and (C) particles of a second fluororesin, which are coated with polysiloxane, wherein, the particle size of the polysiloxane-coated particles of second fluororesin ranges from 0.2 ?m to 80 ?m, and the melting point of the second fluororesin is lower than the melting point of the first fluororesin.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 9, 2021
    Inventors: SHUR-FEN LIU, SHI-ING HUANG
  • Publication number: 20210355259
    Abstract: A resin composition is provided. The resin composition comprises: (A) a compound having a structure of formula (I), wherein R1 is an organic group; and (B) a vinyl-containing elastomer, wherein the weight ratio of the compound having the structure of formula (I) to the vinyl-containing elastomer is 20:1 to 1:1.
    Type: Application
    Filed: October 12, 2020
    Publication date: November 18, 2021
    Inventors: Shur-Fen LIU, Jau-Yu CHIOU, Jen-Chi CHIANG
  • Patent number: 11124614
    Abstract: A halogen-free low dielectric resin composition is provided.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 21, 2021
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Chin-Hsien Hung, Meng-Huei Chen
  • Patent number: 11124613
    Abstract: A resin composition and uses of the same are provided. The resin composition includes the following components: (A) a cross-linking agent of the following formula (I): (B) a polyphenylene ether resin, wherein the terminal ends of the polyphenylene ether resin are independently modified by a substituent with a carbon-carbon double bond; and (C) a catalyst, wherein, R1 in formula (I) is a C6 to C16 alkyl or a C6 to C16 alkenyl, and the weight ratio of the polyphenylene ether resin (B) to the cross-linking agent (A) ranges from 0.5 to 5.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: September 21, 2021
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Chin-Hsien Hung
  • Patent number: 11015052
    Abstract: A halogen-free low dielectric resin composition is provided. The halogen-free low dielectric resin composition comprises: (A) a resin system, which includes: (a1) a polyphenylene ether resin with unsaturated functional groups, and (a2) a polyfunctional vinyl aromatic copolymer; and (B) an allyl cyclophosphazene compound represented by the following formula (I): in formula (I), t is an integer ranging from 2 to 6, wherein, the polyfunctional vinyl aromatic copolymer (a2) is prepared by copolymerizing one or more divinyl aromatic compounds and one or more monovinyl aromatic compounds.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: May 25, 2021
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Chin-Hsien Hung
  • Publication number: 20210060900
    Abstract: A metal-clad laminate, a printed circuit board using the same and a method for manufacturing the metal-clad laminate. The metal-clad laminate comprises: a first dielectric layer, comprising a first dielectric material and not comprising a reinforcing fabric, the first dielectric material comprising 20 wt % to 60 wt % of a first fluoropolymer and 40 wt % to 80 wt % of a first filler; a second dielectric layer disposed on one side of the first dielectric layer and comprising a reinforcing fabric and a second dielectric material formed on the surface of the reinforcing fabric, wherein the thickness of the reinforcing fabric is not higher than 65 ?m and the second dielectric material comprises 55 wt % to 100 wt % of a second fluoropolymer and 0 to 45 wt % of a second filler; and a metal foil disposed on the other side of the second dielectric layer that is opposite to the first dielectric layer.
    Type: Application
    Filed: February 6, 2020
    Publication date: March 4, 2021
    Inventors: Shi-Ing HUANG, Shur-Fen LIU, Kai-Hsiang LIN
  • Publication number: 20200404782
    Abstract: A metal-clad laminate is provided. The metal-clad laminate includes: a dielectric layer, which has a first reinforcing material and a dielectric material formed on the surface of the first reinforcing material, wherein the dielectric material includes 60 wt % to 80 wt % of a first fluoropolymer and 20 wt % to 40 wt % of a first filler; an adhesive layer, which is disposed on at least one side of the dielectric layer and includes an adhesive material, wherein the adhesive material has 60 wt % to 70 wt % of a second fluoropolymer and 30 wt % to 40 wt % of a second filler; and a metal foil, which is disposed on the other side of the adhesive layer that is opposite to the dielectric layer, wherein the melting point of the second fluoropolymer is lower than the melting point of the first fluoropolymer.
    Type: Application
    Filed: October 24, 2019
    Publication date: December 24, 2020
    Inventors: Wen-Ren CHEN, Shi-Ing HUANG, Shur-Fen LIU
  • Publication number: 20200377676
    Abstract: A resin composition and uses of the same are provided. The resin composition includes the following components: (A) a cross-linking agent of the following formula (I): (B) a polyphenylene ether resin, wherein the terminal ends of the polyphenylene ether resin are independently modified by a substituent with a carbon-carbon double bond; and (C) a catalyst, wherein, R1 in formula (I) is a C6 to C16 alkyl or a C6 to C16 alkenyl, and the weight ratio of the polyphenylene ether resin (B) to the cross-linking agent (A) ranges from 0.5 to 5.
    Type: Application
    Filed: September 19, 2019
    Publication date: December 3, 2020
    Inventors: Shur-Fen LIU, Chin-Hsien HUNG
  • Patent number: 10836919
    Abstract: A solvent-free resin composition is provided. The solvent-free resin composition includes: (A) an epoxy resin component, including at least two multi-functional epoxy resins, each of which has at least three epoxy groups in a molecule; (B) an epoxy resin hardener; and (C) inorganic fillers, including a hollow filler and a non-hollow spherical filler, wherein the weight ratio of the hollow filler to the non-hollow spherical filler is from 1:5 to 6:1.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: November 17, 2020
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Shur-Fen Liu, Chin-Hsien Hung
  • Patent number: 10793716
    Abstract: A resin composition is provided. The resin composition comprises: (a) a resin of formula (I): (b) a nonpolar elastomer containing vinyl group, wherein the content of the vinyl group is no more than 60%; and (c) a peroxide as a polymerization initiator, wherein, R1, R2, A1, A2, and n are as defined in the specification; and the content of component (b) is about 2% to about 100% based on the weight of component (a), and the content of component (c) is about 0.01% to about 10% based on the total weight of component (a) and component (b).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 6, 2020
    Assignee: TAIWAN UNION TECHNOLOGY CORPORATION
    Inventors: Meng-Huei Chen, Shur-Fen Liu