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).

  • 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
  • Patent number: 7270886
    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: June 7, 2004
    Date of Patent: September 18, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Jung-Sik Choi, Dong-Jun Lee
  • Patent number: 7250379
    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 3, 2005
    Date of Patent: July 31, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Sang-Mun Chon
  • Publication number: 20070071893
    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: Application
    Filed: September 21, 2006
    Publication date: March 29, 2007
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Youn-Joung Cho, Tae-Sung Kim, Mi-Ae Kim, Kyoo-Chul Cho
  • Publication number: 20070066061
    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: Application
    Filed: September 20, 2006
    Publication date: March 22, 2007
    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
  • Patent number: 7179537
    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 perhydropolysilazane having a compound of the formula —(SiH2NH)n— wherein n represents a positive integer, a weight average molecular weight within the range of about 4,000 to 8,000, and a molecular weight dispersion within the range of about 3.0 to 4.0, 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: October 24, 2002
    Date of Patent: February 20, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Hong-Ki Kim, Dong-Jun Lee, Dae-Won Kang, Sang-Mun Chon
  • Publication number: 20060276053
    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: Application
    Filed: June 5, 2006
    Publication date: December 7, 2006
    Inventors: Jun-Hyun Cho, Jung-Sik Choi, Jung-Ho Lee, Mi-Ae Kim
  • Publication number: 20060166512
    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: Application
    Filed: January 13, 2006
    Publication date: July 27, 2006
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Jung-Sik Choi, Sang-Mun Chon
  • Publication number: 20060157694
    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: January 9, 2006
    Publication date: July 20, 2006
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Tae-Min Eom, Ji-Hyun Lee
  • Patent number: 7053005
    Abstract: A method of forming a silicon oxide layer in a semiconductor manufacturing process includes forming a planar spin on glass (SOG) layer by coating an SOG composition onto a semiconductor substrate having a stepped portion formed thereon, pre-baking the substrate at a temperature of from about 100 to about 500° C. for about 1 to about 10 minutes, maintaining a loading temperature of a furnace into which the substrate will be loaded at about 500° C. or less, loading the substrate into the furnace, and main-baking the substrate at a temperature of from about 500 to about 1200° C. for about 10 to about 120 minutes to form a silicon oxide layer on the substrate. The SOG layer is transformed into the silicon oxide layer through an optimized process condition. Thus, the silicon oxide layer may have minimal defects and a good layer property.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: May 30, 2006
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Dong-Jun Lee, Jung-Sik Choi
  • Publication number: 20050277223
    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: Application
    Filed: June 3, 2005
    Publication date: December 15, 2005
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Sang-Mun Chon
  • Patent number: 6830134
    Abstract: A snow chain mechanism for easily applying snow chains to the wheels of a vehicle and dismounting the snow chains therefrom. The mechanism includes a chain assembly mounted with a plurality of chains rotated by a chain assembly driving unit mounted to an axle of a vehicle via a bracket. Also included is a control unit for controlling the chain assembly driving unit, thereby allowing the chains to be positioned between the wheels and road bed when the driver commands the snow chain mechanism to operate once the vehicle has been started.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: December 14, 2004
    Assignee: Hyundai Motor Company
    Inventor: Jung-Sik Choi
  • Publication number: 20040224094
    Abstract: A method of forming a silicon oxide layer in a semiconductor manufacturing process includes forming a planar spin on glass (SOG) layer by coating an SOG composition onto a semiconductor substrate having a stepped portion formed thereon, pre-baking the substrate at a temperature of from about 100 to about 500° C. for about 1 to about 10 minutes, maintaining a loading temperature of a furnace into which the substrate will be loaded at about 500° C. or less, loading the substrate into the furnace, and main-baking the substrate at a temperature of from about 500 to about 1200° C. for about 10 to about 120 minutes to form a silicon oxide layer on the substrate. The SOG layer is transformed into the silicon oxide layer through an optimized process condition. Thus, the silicon oxide layer may have minimal defects and a good layer property.
    Type: Application
    Filed: February 18, 2004
    Publication date: November 11, 2004
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Dong-Jun Lee, Jung-Sik Choi
  • Publication number: 20040224537
    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: June 7, 2004
    Publication date: November 11, 2004
    Inventors: Jung-Ho Lee, Jun-Hyun Cho, Jung-Sik Choi, Dong-Jun Lee
  • Patent number: 6706646
    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 perhydropolysilazane having a compound of the formula —(SiH2NH)n— wherein n represents a positive integer, a weight average molecular weight within the range of about 4,000 to 8,000, and a molecular weight dispersion within the range of about 3.0 to 4.0, 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: October 12, 2000
    Date of Patent: March 16, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Hong-Ki Kim, Dong-Jun Lee, Dae-Won Kang, Sang-Mun Chon
  • Publication number: 20030116952
    Abstract: A snow chain mechanism for easily applying snow chains to the wheels of a vehicle and dismounting the snow chains therefrom. The mechanism includes a chain assembly mounted with a plurality of chains rotated by a chain assembly driving unit mounted to an axle of a vehicle via a bracket. Also included is a control unit for controlling the chain assembly driving unit, thereby allowing the chains to be positioned between the wheels and road bed when the driver commands the snow chain mechanism to operate once the vehicle has been started.
    Type: Application
    Filed: December 13, 2002
    Publication date: June 26, 2003
    Inventor: Jung-Sik Choi
  • Publication number: 20030040194
    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 perhydropolysilazane having a compound of the formula —(SiH2NH)n— wherein n represents a positive integer, a weight average molecular weight within the range of about 4,000 to 8,000, and a molecular weight dispersion within the range of about 3.0 to 4.0, 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: October 24, 2002
    Publication date: February 27, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Hong-Ki Kim, Dong-Jun Lee, Dae-Won Kang, Sang-Mun Chon
  • Patent number: 6479405
    Abstract: A method of forming a silicon oxide layer of a semiconductor device comprising coating a spin-on glass (SOG) composition including perhydropolysilazane having a compound of the formula (SiH2NH2)n where n represents a positive integer on a semiconductor substrate having a surface discontinuity, to form a planar SOG layer; and forming a silicon oxide layer with a planar surface by implementing a first heat treatment to convert an SOG solution into oxide and a second heat treatment to densify thus obtained oxide. The silicon oxide layer of the present invention can bury a gap between gaps of VLSI having a high aspect ratio and gives the same characteristics as a CVD oxide layer. Further, the oxidation of silicon in the active region is restrained in the present invention to secure dimension stability. Also disclosed is a semiconductor device made by the method.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: November 12, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Ho Lee, Dong-Jun Lee, Dae-Won Kang, Sung-Taek Moon, Gi-Hag Lee, Jung-Sik Choi
  • Publication number: 20020055271
    Abstract: A method of forming a silicon oxide layer of a semiconductor device comprising coating a spin-on glass (SOG) composition including perhydropolysilazane having a compound of the formula (SiH2NH2)n where n represents a positive integer on a semiconductor substrate having a surface discontinuity, to form a planar SOG layer; and forming a silicon oxide layer with a planar surface by implementing a first heat treatment to convert an SOG solution into oxide and a second heat treatment to densify thus obtained oxide. The silicon oxide layer of the present invention can bury a gap between gaps of VLSI having a high aspect ratio and gives the same characteristics as a CVD oxide layer. Further, the oxidation of silicon in the active region is restrained in the present invention to secure dimension stability. Also disclosed is a semiconductor device made by the method.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 9, 2002
    Inventors: Jung-Ho Lee, Dong-Jun Lee, Dae-Won Kang, Sung-Taek Moon, Gi-Hag Lee, Jung-Sik Choi