Patents by Inventor Je-Hun Lee

Je-Hun Lee 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: 20090181226
    Abstract: A method for manufacturing a metal line embedded in a substrate includes forming a trench in the substrate, bringing a stenciling plate having a through hole corresponding to the trench into contact with the substrate with the through hole being aligned to and exposing the trench, applying a fluidic and solidifiable metallic coating material through the through hole and into the trench, separating the stenciling plate from the substrate and solidifying the metallic coating material in the trench.
    Type: Application
    Filed: January 15, 2009
    Publication date: July 16, 2009
    Inventors: Hong-Long Ning, Chang-Oh Jeong, Pil-Sang Yun, Byeong-Beom Kim, Je-Hun Lee, Do-Hyun Kim
  • Publication number: 20090179203
    Abstract: A display substrate includes an insulating substrate, a thin-film transistor (TFT), a pixel electrode, a signal line and a pad part. The insulating substrate has a display region and a peripheral region surrounding the display region. The TFT is in the display region of the insulating substrate. The pixel electrode is in the display region of the insulating substrate and electrically connected to the TFT. The signal line is on the insulating substrate and extends from the peripheral region toward the display region. The pad part is in the peripheral region and electrically connects to the signal line. The pad part is formed in a trench of the insulating substrate and includes a region that extends into the insulating substrate. Therefore, the signal line may be securely attached to the insulating substrate.
    Type: Application
    Filed: December 9, 2008
    Publication date: July 16, 2009
    Inventors: Hong-Long Ning, Chang-Oh Jeong, Je-Hun Lee, Yang-Ho Bae, Pil-Sang Yun, Hong-Sick Park, Joo-Ae Youn, Byeong-Beom Kim, Byeong-Jin Lee
  • Publication number: 20090174835
    Abstract: A liquid crystal display (LCD) includes thin film transistors (TFTs) each having spaced apart source/drain electrodes and an oxide-type semiconductive film disposed over and between the source/drain electrodes to define an active layer. Each of the source/drain electrodes includes a portion of a subdivided transparent conductive layer where one subdivision of the transparent conductive layer continues from within its one of the source/drain electrodes to define an optically exposed pixel-electrode that is reliably connected integrally to the one source/drain electrode. Mass production costs can be reduced and production reliability increased because a fewer number of photolithographic masks can be used to form the TFTs.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 9, 2009
    Inventors: Je-Hun Lee, Do-Hyun Kim, Tae-Sang Kim, Kyung-Seok Son, Chang-Oh Jeong
  • Publication number: 20090162982
    Abstract: An array substrate includes a switching element, a signal transmission line, a passivation layer and a pixel electrode. The switching element is disposed on an insulating substrate. The signal transmission line is connected to the switching element and includes a barrier layer, a conductive line, and a copper nitride layer. The barrier layer is disposed on the insulating substrate. The conductive line is disposed on the barrier layer and includes copper or copper alloy. The copper nitride layer covers the conductive line. The passivation layer covers the switching element and the signal transmission line and has a contact hole through which a drain electrode of the switching element is partially exposed. The pixel electrode is disposed on the insulating substrate, and is connected to the drain electrode of the switching element through the contact hole.
    Type: Application
    Filed: February 25, 2009
    Publication date: June 25, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Do-Hyun Kim, Eun-Guk Lee, Chang-Oh Jeong
  • Publication number: 20090163022
    Abstract: Multi-layered wiring for a larger flat panel display is formed by depositing molybdenum on a substrate in presence of a precursor gas containing at least one oxygen, nitrogen and carbon to form a molybdenum layer. An aluminum layer is deposited on the molybdenum layer. Another metal layer may be formed on the aluminum layer. The molybdenum layer has a face-centered cubic (FCC) lattice structure with a preferred orientation of (111).
    Type: Application
    Filed: February 12, 2009
    Publication date: June 25, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun LEE, Jae-Kyeong LEE, Chang-Oh JEONG, Beom-Seok CHO
  • Patent number: 7550768
    Abstract: The present invention provides a TFT array panel and a manufacturing method of the same, which has signal lines including a lower layer of an Al containing metal and an upper layer of a molybdenum alloy (Mo-alloy) comprising molybdenum (Mo) and at least one of niobium (Nb), vanadium (V), and titanium (Ti). Accordingly, undercut, overhang, and mouse bites which may arise in an etching process, are prevented, and TFT array panels that have signal lines having low resistivity and good contact characteristics are provided.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: June 23, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beom-Seok Cho, Yang-Ho Bae, Je-Hun Lee, Chang-Oh Jeong
  • Publication number: 20090154334
    Abstract: Provided are a QR decomposition apparatus and method for a MIMO system. The QR decomposition apparatus includes: a norm calculator for calculating a vector size norm for a channel input; a Q column calculator for calculating a column value of a unitary matrix Q by multiplying a delayed channel input with ?{square root over (norm)}; an R row calculator for receiving the delayed channel input, the output of the Q column calculator, and 1/?{square root over (norm)}, and calculating a row value of an upper triangular matrix R; a Q update calculator for receiving the delayed channel input, the output of the R row calculator, and a delayed output of the Q column calculator, and calculating a Q update matrix value; and a norm update calculator for receiving a delayed output of the norm calculator and an output of the R row calculator, and outputting a norm update matrix value.
    Type: Application
    Filed: June 2, 2008
    Publication date: June 18, 2009
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yu-Ro LEE, Byung-Chan KIM, Minho CHEONG, Chanho YOON, Je-Hun LEE, Kwhang-Hyun RYU, Cheol-Jung KIM, Tae-Hyun JEON, Sok-Kyu LEE
  • Patent number: 7527992
    Abstract: A thin film transistor array panel is provided, which includes a substrate, a plurality of gate line formed on the substrate, a plurality of common electrodes having a transparent conductive layer on the substrate, a gate insulating layer covering the gate lines and the common electrodes, a plurality of semiconductor layers formed on the gate insulating layer, a plurality of data lines including a plurality of source electrodes and formed on the semiconductor layer and the gate insulating layer, a plurality of drain electrodes formed on the semiconductor layer and the gate insulating layer, and a plurality of pixel electrodes overlapping the common electrodes and connected to the drain electrodes.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: May 5, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Sung-Jin Kim, Hee-Joon Kim, Chang-Oh Jeong
  • Patent number: 7524706
    Abstract: A thin film transistor array panel includes a source electrode and a drain electrode composed of a Mo alloy layer and a Cu layer, and an alloying element of the Mo alloy layer forms a nitride layer as a diffusion barrier against the Cu layer. The nitride layer can be formed between the Mo alloy layer and the Cu layer, between the Mo alloy layer and the semiconductor layer or in the Mo alloy layer. A method of fabricating a thin film transistor array panel includes forming a data line having a first conductive layer and a second conductive layer, the first conductive layer containing a Mo alloy and the second conductive layer containing Cu, and performing a nitrogen treatment so that an alloying element in the first conductive layer forms a nitride layer. The nitrogen treatment can be performed before forming the first conductive layer, after forming the first conductive layer, or during forming the first conductive layer.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: April 28, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je Hun Lee, Yang Ho Bae, Beom Seok Cho, Chang Oh Jeong
  • Patent number: 7511300
    Abstract: An array substrate includes a switching element, a signal transmission line, a passivation layer and a pixel electrode. The switching element is disposed on an insulating substrate. The signal transmission line is connected to the switching element and includes a barrier layer, a conductive line, and a copper nitride layer. The barrier layer is disposed on the insulating substrate. The conductive line is disposed on the barrier layer and includes copper or copper alloy. The copper nitride layer covers the conductive line. The passivation layer covers the switching element and the signal transmission line and has a contact hole through which a drain electrode of the switching element is partially exposed. The pixel electrode is disposed on the insulating substrate, and is connected to the drain electrode of the switching element through the contact hole.
    Type: Grant
    Filed: July 18, 2007
    Date of Patent: March 31, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Do-Hyun Kim, Eun-Guk Lee, Chang-Oh Jeong
  • Patent number: 7511302
    Abstract: Multi-layered wiring for a larger flat panel display is formed by depositing molybdenum on a substrate in presence of a precursor gas containing at least one oxygen, nitrogen and carbon to form a molybdenum layer. An aluminum layer is deposited on the molybdenum layer. Another metal layer may be formed on the aluminum layer. The molybdenum layer has a face-centered cubic (FCC) lattice structure with a preferred orientation of (111).
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: March 31, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je-Hun Lee, Jae-Kyeong Lee, Chang-Oh Jeong, Beom-Seok Cho
  • Publication number: 20090026450
    Abstract: A thin film transistor array substrate comprising a base substrate, a first wire on the base substrate, a first insulating layer on the base substrate to cover the first wire, a semiconductor layer on the first insulating layer, a second insulating layer on the first insulating layer on which the semiconductor layer is formed, and a second wire on the second insulating layer on the second insulating layer is provided, and a portion of the second wire makes contact with the semiconductor layer through the contact hole.
    Type: Application
    Filed: June 17, 2008
    Publication date: January 29, 2009
    Inventors: Eun-Guk LEE, Chang-Oh Jeong, Je-Hun Lee, Do-Hyun Kim, Soon-Kwon Lim
  • Publication number: 20080318368
    Abstract: Provided is a method of manufacturing a ZnO-based thin film transistor (TFT). The method may include forming source and drain electrodes using one or two wet etchings. A tin (Sn) oxide, a fluoride, or a chloride having relatively stable bonding energy against plasma may be included in a channel layer. Because the source and drain electrodes are formed by wet etching, damage to the channel layer and an oxygen vacancy may be prevented or reduced. Because the material having higher bonding energy is distributed in the channel layer, damage to the channel layer occurring when a passivation layer is formed may be prevented or reduced.
    Type: Application
    Filed: May 22, 2008
    Publication date: December 25, 2008
    Inventors: Myung-kwan Ryu, Sang-yoon Lee, Je-hun Lee, Tae-sang Kim, Jang-yeon Kwon, Kyung-bae Park, Kyung-seok Son, Ji-sim Jung
  • Publication number: 20080308826
    Abstract: A thin-film transistor includes a semiconductor pattern, source and drain electrodes and a gate electrode, the semiconductor pattern is formed on a base substrate, and the semiconductor pattern includes metal oxide. The source and drain electrodes are formed on the semiconductor pattern such that the source and drain electrodes are spaced apart from each other and an outline of the source and drain electrodes is substantially same as an outline of the semiconductor pattern. The gate electrode is disposed in a region between the source and drain electrodes such that portions of the gate electrode are overlapped with the source and drain electrodes. Therefore, leakage current induced by light is minimized. As a result, characteristics of the thin-film transistor are enhanced, after-image is reduced to enhance display quality, and stability of manufacturing process is enhanced.
    Type: Application
    Filed: October 31, 2007
    Publication date: December 18, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je-Hun LEE, Do-Hyun KIM, Eun-Guk LEE, Chang-Oh JEONG
  • Publication number: 20080308795
    Abstract: The disclosed thin film transistor array panel includes an insulating substrate, a channel layer including an oxide formed on the insulating substrate. A gate insulating is layer formed on the channel layer and a gate electrode is formed on the gate insulating layer. An interlayer insulating layer is formed on the gate electrode and a data line formed on the interlayer insulating layer and includes a source electrode, wherein the data line is made of a first conductive layer and a second conductive layer. A drain electrode formed on the interlayer insulating layer, and includes the first conductive layer and the second conductive layer. A pixel electrode extends from the first conductive layer of the drain electrode and a passivation layer formed on the data line and the drain electrode. A spacer formed on the passivation layer.
    Type: Application
    Filed: October 30, 2007
    Publication date: December 18, 2008
    Inventors: Je-Hun Lee, Do-Hyun Kim, Chang-Oh Jeong
  • Publication number: 20080206923
    Abstract: Provided are a method of forming an oxide semiconductor layer and a method of manufacturing a semiconductor device using the method of forming an oxide semiconductor layer. The method may include mounting an oxide semiconductor target in a chamber; loading a substrate into the chamber; vacuuming the chamber; applying a direct current power to the oxide semiconductor target while injecting oxygen and a sputtering gas into the chamber; and forming an oxide semiconductor layer on a surface of the substrate by applying plasma of the sputtering gas onto the oxide semiconductor target. Here, the oxide semiconductor target may have a resistance of 1 k? or less. The oxide semiconductor target may have a composition of x(first oxide).y(second oxide).z(third oxide) where x, y and z are molar ratios. Each of the first through third oxides may be one of Ga2O3, HfO2, In2O3, and ZnO but different from each other. The oxide semiconductor target may be one of Ga2O3, HfO2, In2O3, and ZnO.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 28, 2008
    Inventors: Chang-jung Kim, Je-hun Lee
  • Publication number: 20080203390
    Abstract: A method for manufacturing a thin film transistor array panel includes forming a gate line on a substrate; sequentially forming a gate insulating layer, a silicon layer, and a conductor layer including a lower layer and an upper layer on the gate line, forming a photoresist film, on the conductor layer, patterning the photoresist film to form a photoresist pattern including a first portion and a second portion having a greater thickness than the first portion, etching the upper layer and the lower layer by using the photoresist pattern as art etch mask, etching the silicon layer by using the photoresist pattern as an etch mask to form a semiconductor, removing the second portion of the photoresist pattern by using an etch back process, selectively wet-etching the upper layer of the conductor layer by using the photoresist pattern as an etch mask, dry-etching the lower layer of the conductor layer by using the photoresist pattern as an etch mask to form a data line and a drain electrode including remaining upp
    Type: Application
    Filed: October 31, 2007
    Publication date: August 28, 2008
    Inventors: Do-Hyun Kim, Won-Suk Shin, Chang-Oh Jeong, Hong-Sick Park, Eun-Guk Lee, Je-Hun Lee
  • Publication number: 20080185590
    Abstract: A manufacturing method of a thin film transistor (TFT) includes forming a gate electrode including a metal that can be combined with silicon to form silicide on a substrate and forming a gate insulation layer by supplying a gas which includes silicon to the gate electrode at a temperature below about 280° C. The method further includes forming a semiconductor on the gate insulation layer, forming a data line and a drain electrode on the semiconductor and forming a pixel electrode connected to the drain electrode.
    Type: Application
    Filed: October 31, 2007
    Publication date: August 7, 2008
    Inventors: Byoung-June Kim, Jae-Ho Choi, Chang-Oh Jeong, Sung-Hoon Yang, Je-Hun Lee, Do-Hyun Kim, Hwa-Yeul Oh, Yong-Mo Choi
  • Publication number: 20080166827
    Abstract: The present invention provides a TFT array panel and a manufacturing method of the same, which has signal lines including a lower layer of an Al containing metal and an upper layer of a molybdenum alloy (Mo-alloy) comprising molybdenum (Mo) and at least one of niobium (Nb), vanadium (V), and titanium (Ti). Accordingly, undercut, overhang, and mouse bites which may arise in an etching process, are prevented, and TFT array panels that have signal lines having low resistivity and good contact characteristics are provided.
    Type: Application
    Filed: November 21, 2007
    Publication date: July 10, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Beom-Seok Cho, Yang-Ho Bae, Je-Hun Lee, Chang-Oh Jeong
  • Publication number: 20080149930
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate and a method for fabricating a TFT substrate. The wire structure includes a barrier layer formed on a substrate and including copper, copper solid solution layer.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Inventors: Je-Hun LEE, Chang-Oh Jeong, Eun-Guk Lee, Do-Hyun Kim