Patents by Inventor Jung-Sik Choi

Jung-Sik Choi 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: 7648854
    Abstract: Provided herein are methods of forming a metal oxide layer that include providing an organometallic compound and an oxidizing agent to the substrate to form the metal oxide layer on the substrate. The organometallic compound may have the general formula of M(NR1R2)3R3, wherein M is a metal; R1 and R2 are each independently hydrogen or alkyl; and R3 is selected from the group consisting of alkyl, cycloalkyl, heterocycloalkyl, aryl and heteroaryl.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: January 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Youn-Joung Cho, Seung-Min Ryu, Kyoo-Chul Cho, Jung-Sik Choi
  • Patent number: 7642200
    Abstract: A method of forming a thin film is provided. The method includes introducing an organometallic compound represented by the following formula onto a substrate; wherein M represents a metal in listed in Group 4A of the periodic table of elements, R1, R2 and R3 independently represent hydrogen or an alkyl group having a carbon number from 1 to 5, and X represents hydrogen or an alkyl group having a carbon number from 1 to 5 and then chemisorbing a portion of the organometallic compound on the substrate. The method further includes removing a non-chemisorbed portion of the organometallic compound from the substrate, providing an oxidizing agent onto the substrate and forming a thin film including a metal oxide on the substrate by chemically reacting the oxidizing agent with a metal in the organometallic compound and by separating ligands of the organometallic compound.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: January 5, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Jung-Sik Choi, Sang-Mun Chon
  • Patent number: 7605094
    Abstract: In a method of forming a metal oxide, an organic metal compound represented by the following chemical formula is introduced into a chamber to chemisorb the organic metal compound onto a substrate, M[L1]x[L2]y where M represents a metal, L1 and L2 respectively represents a first and second ligands. In addition, x and y are independently integers and a value of (x+y) is 3 to 5. An oxygen-containing compound is introduced into the chamber to form the metal oxide. The metal oxide is formed by reacting an oxygen of the oxygen-containing compound with the metal, and separating the ligand from the metal. Thus, the metal oxide having a superior step coverage and a high dielectric constant may be formed using the organic metal compound by an atomic layer deposition process.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: October 20, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Sang-Mun Chon
  • Publication number: 20090233439
    Abstract: A metal organic precursor represented by a formula of R1-CpML is provided onto a substrate having a conductive pattern including silicon. Here, R1 is an alkyl group substituent of Cp, R1 including methyl, ethyl, propyl, pentamethyl, pentaethyl, diethyl, dimethyl or dipropyl, Cp is cyclopentadienyl, M includes nickel (Ni), cobalt (Co), titanium (Ti), platinum (Pt) zirconium (Zr) or ruthenium (Ru), and L is at least one ligand, the at least one ligand including a carbonyl. A deposition process is performed using the metal organic precursor to form a preliminary metal silicide layer and a metal layer on the substrate. The preliminary metal silicidation layer is formed on the conductive pattern. The preliminary metal silicide layer is transformed into a metal silicide layer.
    Type: Application
    Filed: March 5, 2009
    Publication date: September 17, 2009
    Inventors: Myung-Beom Park, Ki-Hag Lee, Hyun-Su Kim, Eun-Ok Lee, Kyoo-Chul Cho, Jung-Sik Choi, Byung-Hee Kim, Dae-Yong Kim
  • Patent number: 7582573
    Abstract: A spin-on glass (SOG) composition and a method of forming a silicon oxide layer utilizing the SOG composition are disclosed. The method includes coating on a semiconductor substrate having a surface discontinuity, an SOG composition containing polysilazane having a compound of the formula —(SiH2NH)n— wherein n represents a positive integer, a weight average molecular weight within the range of about 3,300 to 3,700 to form a planar SOG layer. The SOG layer is converted to a silicon oxide layer with a planar surface by curing the SOG layer. Also disclosed is a semiconductor device made by the method.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: September 1, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Jung-Sik Choi, Dong-Jun Lee
  • Publication number: 20090208854
    Abstract: Disclosed is a photosensitive resin composition used to form spacers of a liquid crystal display device. The photosensitive resin composition comprises [A] an alkali-soluble resin, [B] a reactive unsaturated compound, [C] a photopolymerization initiator and [D] a solvent wherein the alkali-soluble resin [A] is a copolymer including structural units represented by Formulae 1 to 3, which are described in the specification. Column spacers formed using the photosensitive resin composition exhibit high compressive displacement, elastic recovery and residual film ratio.
    Type: Application
    Filed: April 27, 2009
    Publication date: August 20, 2009
    Applicant: Cheil Industries Inc.
    Inventors: Jung Sik CHOI, Jae Sun HAN, Jeong Min HONG, Kil Sung LEE
  • Publication number: 20090154435
    Abstract: The present invention relates to a portable internet radio access station, and more particularly, to a portable internet radio access station including a plurality of management processors and a method of controlling the plurality of management processors.
    Type: Application
    Filed: May 23, 2007
    Publication date: June 18, 2009
    Inventors: Jun-Ho Chung, Sung-Soo Oh, Shin-Ha Kang, Jung-Sik Choi
  • Publication number: 20090146236
    Abstract: The present invention provides a photosensitive resin composition for a pad protective layer that includes (A) an alkali soluble resin, (B) a reactive unsaturated compound, (C) a photoinitiator, and (D) a solvent. The (A) alkali soluble resin includes a copolymer including about 5 to about 50 wt % of a unit having the Chemical Formula 1, about 1 to about 25 wt % of a unit having the Chemical Formula 2, and about 45 to about 90 wt % of a unit having the Chemical Formula 3, and a method of making an image sensor using the photosensitive resin composition.
    Type: Application
    Filed: December 8, 2008
    Publication date: June 11, 2009
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Kil-Sung LEE, Jae-Hyun KIM, Chang-Min LEE, Eui-June JEONG, Kwen-Woo HAN, O-Bum KWON, Jung-Sik CHOI, Jong-Seob KIM, Tu-Won CHANG, Jung-Hyun CHO, Seul-Young JEONG
  • Publication number: 20090096014
    Abstract: A nonvolatile memory device includes a semiconductor substrate, a charge-trap structure disposed on the semiconductor substrate, which includes an insulating film and a plurality of carbon nanocrystals embedded in the insulating film, and a gate disposed on the charge-trap structure. The nonvolatile memory device may exhibit memory hysteresis characteristics with improved reliability.
    Type: Application
    Filed: June 11, 2008
    Publication date: April 16, 2009
    Inventors: Sam-Jong Choi, Kyoo-Chul Cho, Jung-Sik Choi, Hee-sung Kim, Tae-Soo Kang, Yoon-Hee Lee
  • Patent number: 7517815
    Abstract: A spin-on glass composition includes a solvent, about 3 to about 20 percent by weight of a porogen, and about 3 to about 20 percent by weight of a silsesquioxane oligomer represented by formula (1), where, in the formula (1), Y1 and Y2 independently represent a hydrolyzable alkoxy group, R represents a lower alkyl group, and n and m independently represent an integer in a range of one to nine both inclusive.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: April 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Hyun Cho, Jung-Sik Choi, Jung-Ho Lee, Mi-Ae Kim
  • Patent number: 7488684
    Abstract: An organic aluminum precursor includes aluminum as a central metal, and borohydride and trimethylamine as ligands. In a method of forming an aluminum layer or wire, the organic aluminum presursor is introduced onto a substrate, and then thermally decomposed. The aluminum decomposed from the organic aluminum precursor is deposited on the substrate.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: February 10, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Sik Choi, Jung-Ho Lee, Jun-Hyun Cho, Youn-Joung Cho, Tae-Sung Kim, Mi-Ae Kim, Kyoo-Chul Cho, Dong-Jun Lee
  • Publication number: 20090035516
    Abstract: Disclosed are an organometallic precursor that may be used in manufacturing a semiconductor device, a thin film having the same, a metal wiring including the thin film, a method of forming a thin film and a method of manufacturing a metal wiring. An organometallic precursor including a central metal, a borohydride ligand and an amine ligand for reducing a polarity of the organometallic precursor may be provided onto a substrate, and may be thermally decomposed to form a thin film on the substrate. The organometallic precursor having a reduced polarity may be provided to a chamber with a constant flow rate, and thus stability and/or efficiency of a semiconductor manufacturing process may be improved.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 5, 2009
    Inventors: Youn-Joung Cho, Jung-Ho Lee, Jun-Hyun Cho, Seung-Min Ryu, Kyoo-Chul Cho, Jung-Sik Choi
  • Publication number: 20080305591
    Abstract: A metal oxide alloy layer comprises a first layer including a first metal oxide and having a first thickness, and a second layer formed on the first layer, the second layer including a second metal oxide and having a second thickness, wherein a value of the first thickness is such that the first metal oxide is allowed to move into the second layer and a value of the second thickness is such that the second metal oxide is allowed to move into the first layer to form a single-layered structure in which the first and second metal oxides are mixed.
    Type: Application
    Filed: August 22, 2008
    Publication date: December 11, 2008
    Inventors: Jung-Ho LEE, Jung-sik Choi, Jun-hyun Cho, Tae-min Eom, Ji-hyun Lee
  • Publication number: 20080292783
    Abstract: In a method of manufacturing a thin layer, an organic metal precursor is provided onto a substrate. The organic metal precursor has a vapor pressure of about 0.5 Torr to about 6 Torr at a temperature of about 65° C. to about 95° C. and is represented by following Chemical Formula 1. An oxidant including an oxygen atom is provided onto the substrate to oxidize the organic metal precursor. The organic metal precursor reacts with the oxidant to form a thin layer including a metal oxide on the substrate. The thin layer may be used for a gate insulation layer of a gate structure, a dielectric layer of a capacitor, etc.
    Type: Application
    Filed: April 14, 2008
    Publication date: November 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Hyun CHO, Jung-Ho LEE, Youn-Joung CHO, Jung-Sik CHOI, Seung-Min RYU
  • Patent number: 7452569
    Abstract: In a method of manufacturing a metal wiring, an organic aluminum precursor that includes aluminum as a central metal is applied to a substrate. The organic aluminum precursor applied to the substrate is thermally decomposed to form aluminum. The aluminum is deposited on the substrate to form an aluminum wiring having a low resistance. The organic aluminum precursor includes a chemical structure in accordance with one of the chemical formulae: wherein R1, R2, R3, R4 and R5 are independently H or a C1-C5 alkyl functional group, n is an integer of 1 to 5, x is 1 or 2, and y is 0 or 1, or wherein R1, R2, R3, R4 R5, R6, R7 and R8 are independently H or a C1-C5 alkyl functional group, and Y is boron.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 18, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Youn-Joung Cho, Tae-Sung Kim, Mi-Ae Kim, Kyoo-Chul Cho
  • Patent number: 7427573
    Abstract: A metal oxide alloy layer comprises a first layer including a first metal oxide and having a first thickness, and a second layer formed on the first layer, the second layer including a second metal oxide and having a second thickness, wherein a value of the first thickness is such that the first metal oxide is allowed to move into the second layer and a value of the second thickness is such that the second metal oxide is allowed to move into the first layer to form a single-layered structure in which the first and second metal oxides are mixed.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: September 23, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Tae-Min Eom, Ji-Hyun Lee
  • Publication number: 20080213940
    Abstract: Provided herein are methods of forming a metal oxide layer that include providing an organometallic compound and an oxidizing agent to the substrate to form the metal oxide layer on the substrate. The organometallic compound may have the general formula of M(NR1R2)3R3, wherein M is a metal; R1 and R2 are each independently hydrogen or alkyl; and R3 is selected from the group consisting of alkyl, cycloalkyl, heterocycloalkyl, aryl and heteroaryl.
    Type: Application
    Filed: November 16, 2007
    Publication date: September 4, 2008
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Youn-Joung Cho, Seung-Min Ryu, Kyoo-Chul Cho, Jung-Sik Choi
  • Publication number: 20080146694
    Abstract: A photosensitive resin composition for forming column spacers for a liquid crystal display device is provided. The composition includes an alkali-soluble resin, a reactive unsaturated compound, a photoinitiator and a solvent. The alkali-soluble resin includes structural units represented by Formulae 1, 2 and 3, which are described in the specification. A pattern formed using the composition is also provided. The pattern shows improved thickness uniformity, good developability without leaving any residual image, superior solvent resistance and high recovery rate.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 19, 2008
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jae Sun HAN, Jeong Min HONG, Jung Sik CHOI, Kil Sung LEE
  • Publication number: 20080057224
    Abstract: A method of manufacturing a thin film includes providing a metal organic precursor onto a substrate where the metal organic precursor is heated to a temperature of about 60° C. to about 95° C. and has a saturated vapor pressure of about 1 Torr to about 5 Torr. An oxidizing agent including oxygen for oxidizing the metal organic precursor is provided onto the substrate. The metal organic precursor and the oxidizing agent are chemically reacted to form the thin film including metal oxide. The thin film is easily available in a gate insulation layer of a gate structure, a dielectric layer of a capacitor, and similar circuit components.
    Type: Application
    Filed: April 25, 2007
    Publication date: March 6, 2008
    Inventors: Youn-Joung Cho, Jung-Ho Lee, Jun-Hyun Cho, Seung-Min Ryu, Kyoo-Chul Cho, Jung-Sik Choi
  • Publication number: 20070281498
    Abstract: A spin-on glass (SOG) composition and a method of forming a silicon oxide layer utilizing the SOG composition are disclosed. The method includes coating on a semiconductor substrate having a surface discontinuity, an SOG composition containing polysilazane having a compound of the formula —(SiH2NH)n— wherein n represents a positive integer, a weight average molecular weight within the range of about 3,300 to 3,700 to form a planar SOG layer. The SOG layer is converted to a silicon oxide layer with a planar surface by curing the SOG layer. Also disclosed is a semiconductor device made by the method.
    Type: Application
    Filed: August 9, 2007
    Publication date: December 6, 2007
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Jung-Sik Choi, Dong-Jun Lee