Patents by Inventor Jung-Kyu HAN

Jung-Kyu HAN 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: 11488918
    Abstract: Embodiments described herein include electronic packages and methods of forming such packages. An electronic package includes a package substrate, first conductive pads formed over the package substrate, where the first conductive pads have a first surface area, and second conductive pads over the package substrate, where the second conductive pads have a second surface area greater than the first surface area. The electronic package also includes a solder resist layer over the first and second conductive pads, and a plurality of solder resist openings that expose one of the first or second conductive pads. The solder resist openings of the electronic package may include conductive material that is substantially coplanar with a top surface of the solder resist layer. The electronic package further includes solder bumps over the conductive material in the solder resist openings, where the solder bumps have a low bump thickness variation (BTV).
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: November 1, 2022
    Assignee: Intel Corporation
    Inventors: Kristof Darmawaikarta, Robert May, Sashi Kandanur, Sri Ranga Sai Boyapati, Srinivas Pietambaram, Steve Cho, Jung Kyu Han, Thomas Heaton, Ali Lehaf, Ravindranadh Eluri, Hiroki Tanaka, Aleksandar Aleksov, Dilan Seneviratne
  • Publication number: 20220199515
    Abstract: A package assembly includes a substrate and at least a first die having a first contact array and a second contact array. First and second via assemblies are respectively coupled with the first and second contact arrays. Each of the first and second via assemblies includes a base pad, a cap assembly, and a via therebetween. One or more of the cap assembly or the via includes an electromigration resistant material to isolate each of the base pad and the cap assembly. Each first cap assembly and via of the first via assemblies has a first assembly profile less than a second assembly profile of each second cap assembly and via of the second via assemblies. The first and second cap assemblies have a common applied thickness in an application configuration. The first and second cap assemblies have a thickness variation of ten microns or less in a reflowed configuration.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 23, 2022
    Inventors: Srinivas V. PIETAMBARAM, Jung Kyu HAN, Ali LEHAF, Steve CHO, Thomas HEATON, Hiroki TANAKA, Kristof DARMAWIKARTA, Robert Alan MAY, Sri Ranga Sai BOYAPATI
  • Patent number: 11309239
    Abstract: A package assembly includes a substrate and at least a first die having a first contact array and a second contact array. First and second via assemblies are respectively coupled with the first and second contact arrays. Each of the first and second via assemblies includes a base pad, a cap assembly, and a via therebetween. One or more of the cap assembly or the via includes an electromigration resistant material to isolate each of the base pad and the cap assembly. Each first cap assembly and via of the first via assemblies has a first assembly profile less than a second assembly profile of each second cap assembly and via of the second via assemblies. The first and second cap assemblies have a common applied thickness in an application configuration. The first and second cap assemblies have a thickness variation of ten microns or less in a reflowed configuration.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: April 19, 2022
    Assignee: Intel Corporation
    Inventors: Srinivas Pietambaram, Jung Kyu Han, Ali Lehaf, Steve Cho, Thomas Heaton, Hiroki Tanaka, Kristof Darmawikarta, Robert Alan May, Sri Ranga Sai Boyapati
  • Publication number: 20210366860
    Abstract: Embodiments disclosed herein include electronic packages. In an embodiment, an electronic package comprises a package substrate and a bridge substrate embedded in the package substrate. In an embodiment, first pads are over the package substrate, where the first pads have a first pitch, and second pads are over the bridge substrate, where the second pads have a second pitch that is smaller than the first pitch. In an embodiment, a barrier layer is over individual ones of the second pads. In an embodiment, reflown solder is over individual ones of the first pads and over individual ones of the second pads. In an embodiment, a first standoff height of the reflown solder over the first pads is equal to a second standoff height of the reflown solder over the second pads.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 25, 2021
    Inventors: Jung Kyu HAN, Hongxia FENG, Xiaoying GUO, Rahul N. MANEPALLI
  • Publication number: 20210347986
    Abstract: Disclosed are an uncoating metallic thermoplastic resin composition invention including metallic particles at an appropriate ratio and a molded article including the same. The molded article may maintain the mechanical properties such as impact strength and fluidity at an excellent level as well as improving the appearance characteristics such as luminance characteristics (high luminance) and metallic texture. The uncoating metallic thermoplastic resin composition and the molded article thereof may be usefully applied to the molded products in fields where the characteristics of the appearance quality are importantly required, for example, cell phone housing, TV housing, computer monitor housing, automobile bumper, wheel housing, panel button portion, interior and exterior lighting lamp housings, and the like.
    Type: Application
    Filed: September 29, 2020
    Publication date: November 11, 2021
    Inventors: Kyeong Hoon Jang, In Soo Han, Seul Yi, Jae Hyun An, Dae Sik Kim, Si Uk Cheon, Chul Jin Jo, Jung Kyu Han, Tae Jin An, Hyung Jin Roh, Suk Woo Kang, Do Young Bae
  • Publication number: 20210332235
    Abstract: The present invention relates to a non-coating thermoplastic resin composition, a method for manufacturing a molded article by using the same, and a molded article manufactured by the same. More specifically, the present invention is characterized by providing the thermoplastic resin composition which contains polycarbonate, polysiloxane-polycarbonate copolymer, polyester, master-batched carbon black, and additives in specific contents and the molded article, which has excellent chemical resistance, mechanical properties, light resistance, hydrolysis resistance, and low glossiness, manufactured by using the same.
    Type: Application
    Filed: December 1, 2020
    Publication date: October 28, 2021
    Inventors: Seul Yi, Boo Youn An, Dae Sik Kim, Kyeong Hoon Jang, Min Woo Kwon, In Soo Han, Jin Gi Ahn, Do Young Bae, Hyung Jin Roh, Tae Jin An, Jung Kyu Han, Chul Jin Jo, Si Uk Cheon, Suk Woo Kang
  • Patent number: 11108332
    Abstract: Disclosed is an asymmetrical half-bridge converter having high efficiency in a wide input voltage range. The converter may include a primary-side circuit including a first switch, a second switch, a primary-side capacitor, an additional inductor, and a primary-side magnetization inductor, and a secondary-side circuit including first and second diodes connected in series, first and second capacitors connected in series, a secondary-side rectification inductor having one end connected to the anode of the first diode and cathode of the second diode, and having the other end connected between the first and second capacitors connected in series, a first coupling inductor having one end connected to the cathode of the first diode and having the other end connected to the first capacitor, and a second coupling inductor having one end connected to the anode of the second diode and having the other end connected to the second capacitor.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: August 31, 2021
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Gun-Woo Moon, Jung-Kyu Han, Seung-Hyun Choi, Jong-Woo Kim, Keon-Woo Kim, Cheon-Yong Lim
  • Patent number: 11025161
    Abstract: Disclosed are an electric vehicle capable of improving the charging efficiency of a charging apparatus by reducing the switching loss that may occur in the charging apparatus of an electric vehicle and a charging apparatus thereof. To this end, a power factor correction apparatus of an on board charger includes a first boost circuit receiving AC power through a first inductor to charge a load, a second boost circuit receiving the AC power through a second inductor to charge the load, and a third inductor provided between a leg of the first boost circuit and a leg of the second boost circuit so that parasitic capacitors of the first boost circuit and the second boost circuit are discharged.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: June 1, 2021
    Assignees: Hyundai Motor Company, KIA Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: JongPil Kim, Jaehyuk Choi, Woo Young Lee, HanShin Youn, Gun-Woo Moon, Jae-Ii Baek, Jung-Kyu Han, Moo-Hyun Park
  • Patent number: 10982091
    Abstract: The present invention relates to a thermoplastic resin composition having excellent thermal stability and birefringence properties and to a molded article formed therefrom. In one embodiment, the thermoplastic resin composition includes: 100 parts by weight of a polycarbonate resin including a repeating unit represented by formula 1; about 0.2 parts by weight to about 15 parts by weight of an epoxy resin represented by formula 2; and about 1 part by weight to about 15 parts by weight of a phosphate-based compound, wherein formula 1 and formula 2 are as defined in the detailed description.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 20, 2021
    Assignees: HYUNDAI MOBIS CO., LTD., SAMYANG CORPORATION
    Inventors: Jae Joon Chang, Joung Hoon Lee, Hyun Jee Lee, Keun Hyung Lee, Jung Kyu Han, Tae Jin An, Nung Hyun Kim, Hyung Jin Roh
  • Publication number: 20210082852
    Abstract: Embodiments of the present disclosure may generally relate to systems, apparatus, and/or processes directed to manufacturing a package having a substrate with a first side and a second side opposite the first side, where a copper layer is coupled with a first region of the first side of the substrate and includes a plurality of bumps coupled with the first region of the first side of the substrate where one or more second regions on the first side of the substrate not coupled with a copper layer, and where a layout of the one or more second regions on the first side of the substrate is to vary a growth, respectively, of each of the plurality of bumps during a plating process by modifying a local copper density of each of the plurality of bumps.
    Type: Application
    Filed: September 16, 2019
    Publication date: March 18, 2021
    Inventors: Bradon C. MARIN, Jung Kyu HAN, Thomas HEATON, Ali LEHAF, Rahul MANEPALLI, Srinivas PIETAMBARAM, Jacob VEHONSKY
  • Publication number: 20210035901
    Abstract: A package assembly includes a substrate and at least a first die having a first contact array and a second contact array. First and second via assemblies are respectively coupled with the first and second contact arrays. Each of the first and second via assemblies includes a base pad, a cap assembly, and a via therebetween. One or more of the cap assembly or the via includes an electromigration resistant material to isolate each of the base pad and the cap assembly. Each first cap assembly and via of the first via assemblies has a first assembly profile less than a second assembly profile of each second cap assembly and via of the second via assemblies. The first and second cap assemblies have a common applied thickness in an application configuration. The first and second cap assemblies have a thickness variation of ten microns or less in a reflowed configuration.
    Type: Application
    Filed: October 20, 2020
    Publication date: February 4, 2021
    Inventors: Srinivas V. PIETAMBARAM, Jung Kyu HAN, Ali LEHAF, Steve CHO, Thomas HEATON, Hiroki TANAKA, Kristof DARMAWIKARTA, Robert Alan MAY, Sri Ranga Sai BOYAPATI
  • Patent number: 10854541
    Abstract: A package assembly includes a substrate and at least a first die having a first contact array and a second contact array. First and second via assemblies are respectively coupled with the first and second contact arrays. Each of the first and second via assemblies includes a base pad, a cap assembly, and a via therebetween. One or more of the cap assembly or the via includes an electromigration resistant material to isolate each of the base pad and the cap assembly. Each first cap assembly and via of the first via assemblies has a first assembly profile less than a second assembly profile of each second cap assembly and via of the second via assemblies. The first and second cap assemblies have a common applied thickness in an application configuration. The first and second cap assemblies have a thickness variation of ten microns or less in a reflowed configuration.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: December 1, 2020
    Assignee: Intel Corporation
    Inventors: Srinivas Pietambaram, Jung Kyu Han, Ali Lehaf, Steve Cho, Thomas Heaton, Hiroki Tanaka, Kristof Darmawikarta, Robert Alan May, Sri Ranga Sai Boyapati
  • Publication number: 20200312771
    Abstract: A die assembly is disclosed. The die assembly includes a die, one or more die pads on a first surface of the die and a die attach film on the die where the die attach film includes one or more openings that expose the one or more die pads and that extend to one or more edges of the die.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 1, 2020
    Inventors: Bai NIE, Gang DUAN, Srinivas PIETAMBARAM, Jesse JONES, Yosuke KANAOKA, Hongxia FENG, Dingying XU, Rahul MANEPALLI, Sameer PAITAL, Kristof DARMAWIKARTA, Yonggang LI, Meizi JIAO, Chong ZHANG, Matthew TINGEY, Jung Kyu HAN, Haobo CHEN
  • Publication number: 20200220467
    Abstract: Disclosed is an asymmetrical half-bridge converter having high efficiency in a wide input voltage range. The converter may include a primary-side circuit including a first switch, a second switch, a primary-side capacitor, an additional inductor, and a primary-side magnetization inductor, and a secondary-side circuit including first and second diodes connected in series, first and second capacitors connected in series, a secondary-side rectification inductor having one end connected to the anode of the first diode and cathode of the second diode, and having the other end connected between the first and second capacitors connected in series, a first coupling inductor having one end connected to the cathode of the first diode and having the other end connected to the first capacitor, and a second coupling inductor having one end connected to the anode of the second diode and having the other end connected to the second capacitor.
    Type: Application
    Filed: January 2, 2020
    Publication date: July 9, 2020
    Inventors: Gun-Woo Moon, Jung-Kyu Han, Seung-Hyun Choi, Jong-Woo Kim, Keon-Woo Kim, Cheon-Yong Lim
  • Publication number: 20200135679
    Abstract: Embodiments described herein include electronic packages and methods of forming such packages. An electronic package includes a package substrate, first conductive pads formed over the package substrate, where the first conductive pads have a first surface area, and second conductive pads over the package substrate, where the second conductive pads have a second surface area greater than the first surface area. The electronic package also includes a solder resist layer over the first and second conductive pads, and a plurality of solder resist openings that expose one of the first or second conductive pads. The solder resist openings of the electronic package may include conductive material that is substantially coplanar with a top surface of the solder resist layer. The electronic package further includes solder bumps over the conductive material in the solder resist openings, where the solder bumps have a low bump thickness variation (BTV).
    Type: Application
    Filed: October 31, 2018
    Publication date: April 30, 2020
    Inventors: Kristof DARMAWAIKARTA, Robert MAY, Sashi KANDANUR, Sri Ranga Sai BOYAPATI, Srinivas PIETAMBARAM, Steve CHO, Jung Kyu HAN, Thomas HEATON, Ali LEHAF, Ravindranadh ELURI, Hiroki TANAKA, Aleksandar ALEKSOV, Dilan SENEVIRATNE
  • Patent number: 10561688
    Abstract: The present invention relates to a method of preparing vascular endothelial cells by transforming (transdifferentiating) adult fibroblasts and a composition, which includes vascular endothelial cells prepared according to the method, for preventing and treating ischemic diseases, the method including a step of transducing adult fibroblasts with a gene. In particular, the present invention confirms that five factors, Foxo1, Er71, Klf2, Tal1, and Lmo2, induce transdifferentiation of adult fibroblasts into induced vascular endothelial cells. Furthermore, the present invention confirms that three factors, Er71, Klf2, and Tal1 induce transdifferentiation of human adult fibroblasts into induced vascular endothelial cells. The resultant induced endothelial cells enable lower limb salvaging by angiogenesis in lower limb ischemic animal models, showing that the induced endothelial cells can be effectively used for prevention or treatment of ischemic diseases.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: February 18, 2020
    Assignee: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Hyo-Soo Kim, Jung-Kyu Han, Sung-Hwan Chang, Hyun-Ju Cho, Saet-Byeol Choi, Youngchul Shin
  • Publication number: 20200021186
    Abstract: Disclosed are an electric vehicle capable of improving the charging efficiency of a charging apparatus by reducing the switching loss that may occur in the charging apparatus of an electric vehicle and a charging apparatus thereof. To this end, a power factor correction apparatus of an on board charger includes a first boost circuit receiving AC power through a first inductor to charge a load, a second boost circuit receiving the AC power through a second inductor to charge the load, and a third inductor provided between a leg of the first boost circuit and a leg of the second boost circuit so that parasitic capacitors of the first boost circuit and the second boost circuit are discharged.
    Type: Application
    Filed: October 25, 2018
    Publication date: January 16, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Korea Advanced Institute of Science and Technology
    Inventors: JongPil KIM, Jaehyuk Choi, Woo Young Lee, HanShin Youn, Gun -Woo Moon, Jae-II Baek, Jung-Kyu Han, Moo-Hyun Park
  • Publication number: 20190393145
    Abstract: A package assembly includes a substrate and at least a first die having a first contact array and a second contact array. First and second via assemblies are respectively coupled with the first and second contact arrays. Each of the first and second via assemblies includes a base pad, a cap assembly, and a via therebetween. One or more of the cap assembly or the via includes an electromigration resistant material to isolate each of the base pad and the cap assembly. Each first cap assembly and via of the first via assemblies has a first assembly profile less than a second assembly profile of each second cap assembly and via of the second via assemblies. The first and second cap assemblies have a common applied thickness in an application configuration. The first and second cap assemblies have a thickness variation of ten microns or less in a reflowed configuration.
    Type: Application
    Filed: August 28, 2019
    Publication date: December 26, 2019
    Inventors: Srinivas V. Pietambaram, Jung Kyu Han, Ali Lehaf, Steve Cho, Thomas Heaton, Hiroki Tanaka, Kristof Darmawikarta, Robert Alan May, Sri Ranga Sai Boyapati
  • Patent number: 10431537
    Abstract: A package assembly includes a substrate and at least a first die having a first contact array and a second contact array. First and second via assemblies are respectively coupled with the first and second contact arrays. Each of the first and second via assemblies includes a base pad, a cap assembly, and a via therebetween. One or more of the cap assembly or the via includes an electromigration resistant material to isolate each of the base pad and the cap assembly. Each first cap assembly and via of the first via assemblies has a first assembly profile less than a second assembly profile of each second cap assembly and via of the second via assemblies. The first and second cap assemblies have a common applied thickness in an application configuration. The first and second cap assemblies have a thickness variation of ten microns or less in a reflowed configuration.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 1, 2019
    Assignee: Intel Corporation
    Inventors: Srinivas Pietambaram, Jung Kyu Han, Ali Lehaf, Steve Cho, Thomas Heaton, Hiroki Tanaka, Kristof Darmawikarta, Robert Alan May, Sri Ranga Sai Boyapati
  • Publication number: 20190055401
    Abstract: The present invention relates to a thermoplastic resin composition having excellent thermal stability and birefringence properties and to a molded article formed therefrom. In one embodiment, the thermoplastic resin composition includes: 100 parts by weight of a polycarbonate resin including a repeating unit represented by formula 1; about 0.2 parts by weight to about 15 parts by weight of an epoxy resin represented by formula 2; and about 1 part by weight to about 15 parts by weight of a phosphate-based compound, wherein formula 1 and formula 2 are as defined in the detailed description.
    Type: Application
    Filed: August 21, 2018
    Publication date: February 21, 2019
    Inventors: Jae Joon CHANG, Joung Hoon LEE, Hyun Jee LEE, Keun Hyung LEE, Jung Kyu HAN, Tae Jin AN, Nung Hyun KIM, Hyung Jin ROH