Patents by Inventor Beom-Seok Cho

Beom-Seok Cho 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: 7301170
    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: July 12, 2005
    Date of Patent: November 27, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beom-Seok Cho, Yang-Ho Bae, Je-Hun Lee, Chang-Oh Jeong
  • Patent number: 7276732
    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: September 23, 2005
    Date of Patent: October 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Je Hun Lee, Yang Ho Bae, Beom Seok Cho, Chang Oh Jeong
  • Publication number: 20070222908
    Abstract: A thin film transistor (TFT) substrate that improves display quality and allows simpler manufacturing process is presented. The TFT substrate includes a substrate and a gate pattern, a gate-insulating layer, an active pattern, a data pattern, a protecting layer and a pixel electrode formed on the substrate. The gate pattern includes a gate line, a gate electrode connected to the gate line, and a conducting pattern. The gate-insulating layer covers the gate pattern. The active pattern is disposed on the gate-insulating layer. The data pattern is disposed on the active pattern and includes a data line that extends substantially perpendicularly to the gate line, a source electrode, and a drain electrode. The protecting layer covers the data pattern. The pixel electrode is disposed on the substrate and the gate-insulating layer. The conducting pattern serves to reduce a coupling capacitance between the pixel electrode and the data line.
    Type: Application
    Filed: February 2, 2007
    Publication date: September 27, 2007
    Inventors: Joo-Han Kim, Beom-Seok Cho
  • Publication number: 20070187690
    Abstract: The present invention relates to a thin film transistor substrate and a metal wiring method thereof, more particularly to a thin film transistor substrate comprising self-assembled monolayers between the substrate and the metal wiring, and a metal wiring thereof. Since a thin film transistor substrate of the present invention comprises three-dimensionally cross-linked self-assembled monolayers between the Si surface and the metal wiring, it has good adhesion ability and anti-diffusion ability.
    Type: Application
    Filed: March 26, 2007
    Publication date: August 16, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Gab Lee, Chang-Oh Jeong, Myung-Mo Sung, Hee-Jung Yang, Beom-Seok Cho
  • Publication number: 20070102770
    Abstract: A method of manufacturing a thin film transistor array panel including forming a gate line on a substrate, forming a gate insulating layer on the gate line, forming a semiconductor layer on the gate insulating layer, forming a data line and a drain electrode on the semiconductor layer, depositing a passivation layer on the data line and the drain electrode, forming a photoresist including a first portion and a second portion, which is thinner than the first portion, on the passivation layer, etching the passivation layer using the photoresist as a mask to expose a portion of the drain electrode, removing the second portion of the photoresist, depositing a conductive film, and removing the first portion of the photoresist to form a pixel electrode on the exposed portion of the drain electrode.
    Type: Application
    Filed: January 3, 2007
    Publication date: May 10, 2007
    Inventors: Woo-Geun Lee, Beom-Seok Cho, Je-Hun Lee, Chang-Oh Jeong, Sang-Gab Kim, Min-Seok Oh, Young-Wook Lee, Hee-Hwan Choe
  • Patent number: 7211898
    Abstract: The present invention relates to a thin film transistor substrate and a metal wiring method thereof, more particularly to a thin film transistor substrate comprising self-assembled monolayers between the substrate and the metal wiring, and a metal wiring method thereof. Since a thin film transistor substrate of the present invention comprises three-dimensionally cross-linked self-assembled monolayers between the Si surface and the metal wiring, it has good adhesion ability and anti-diffusion ability.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: May 1, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Gab Lee, Chang-Oh Jeong, Myung-Mo Sung, Hee-Jung Yang, Beom-Seok Cho
  • Publication number: 20070082434
    Abstract: The present invention relates to a manufacturing method of a thin film transistor array panel. the method includes forming a gate line including a gate electrode on a substrate, forming a first insulating layer on the gate line, forming a semiconductor layer on the first insulating layer, forming an ohmic contact on the semiconductor layer, forming a data line including a source electrode and a drain electrode on the ohmic contact, depositing a second insulating layer, forming a first photoresist on the second insulating layer, etching the second insulating layer and the first insulating layer using the first photoresist as an etching mask to expose a portion of the drain electrode and a portion of the substrate, forming a pixel electrode connected to an exposed portion of the drain electrode using selective deposition, and removing the first photoresist.
    Type: Application
    Filed: September 29, 2006
    Publication date: April 12, 2007
    Inventors: Yang-Ho Bae, Chang-Oh Jeong, Je-Hun Lee, Beom-Seok Cho
  • Publication number: 20070040954
    Abstract: Provided are a wire structure, a method for fabricating a wire, a thin film transistor (TFT) substrate, and a method for fabricating the TFT substrate. The wire structure includes an underlying layer including a silver oxide formed on a lower structure, and a silver conductive layer including silver or a silver alloy formed on the underlying layer.
    Type: Application
    Filed: May 25, 2006
    Publication date: February 22, 2007
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Publication number: 20070034954
    Abstract: A thin film conductor having improved adhesion and superior conductivity, a method for fabricating the same, a thin film transistor (TFT) plate including the thin film conductor, and a method for fabricating the TFT plate are provided. The thin film conductor includes an adhesive layer containing an oxidation-reactive metal or silicidation-reactive metal and silver, a silver conductive layer formed on the adhesive layer, and a protection layer formed on the silver conductive layer and containing an oxidation-reactive metal and silver.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 15, 2007
    Inventors: Beom-seok Cho, Je-hun Lee, Chang-oh Jeong, Yang-ho Bae
  • Patent number: 7172913
    Abstract: A method of manufacturing a thin film transistor array panel including forming a gate line on a substrate, forming a gate insulating layer on the gate line, forming a semiconductor layer on the gate insulating layer, forming a data line and a drain electrode on the semiconductor layer, depositing a passivation layer on the data line and the drain electrode, forming a photoresist including a first portion and a second portion, which is thinner than the first portion, on the passivation layer, etching the passivation layer using the photoresist as a mask to expose a portion of the drain electrode, removing the second portion of the photoresist, depositing a conductive film, and removing the first portion of the photoresist to form a pixel electrode on the exposed portion of the drain electrode.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: February 6, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woo-Geun Lee, Beom-Seok Cho, Je-Hun Lee, Chang-Oh Jeong, Sang-Gab Kim, Min-Seok Oh, Young-Wook Lee, Hee-Hwan Choe
  • Publication number: 20070013077
    Abstract: Provided are a wire structure, a method of forming a wire, a thin film transistor (TFT) substrate, and a method of manufacturing the TFT substrate. The wire structure includes a barrier layer disposed on a lower structure, a copper conductive layer comprising copper or copper alloy disposed on the barrier layer, an intermediate layer comprising copper nitride disposed on the copper conductive layer, and a capping layer disposed on the intermediate layer.
    Type: Application
    Filed: June 24, 2006
    Publication date: January 18, 2007
    Applicant: Samsung Electronics Co., LTD.
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Publication number: 20070013078
    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 nitride and a copper conductive layer formed on the barrier layer and including copper or a copper alloy.
    Type: Application
    Filed: July 15, 2006
    Publication date: January 18, 2007
    Inventors: Je-hun Lee, Chang-oh Jeong, Beom-seok Cho, Yang-ho Bae
  • Publication number: 20060283833
    Abstract: A TFT array panel for an LCD includes a substrate, a first signal line and a second signal line that cross each other on the substrate, a TFT that is connected to the first signal line and the second signal line, and a pixel electrode that is connected to the TFT. Here, at least one of the two signal lines includes a first conductive layer containing molybdenum, a second conductive layer that is formed on the first conductive layer and contains copper, and a third conductive layer that is formed on the second conductive layer and contains a conductive oxide.
    Type: Application
    Filed: March 13, 2006
    Publication date: December 21, 2006
    Inventors: Je-Hun Lee, Sung-Hoon Yang, Chang-Oh Jeong, Beom-Seok Cho, Yang-Ho Bae
  • Publication number: 20060205125
    Abstract: A TFT substrate includes a base substrate, a gate wiring formed on the base substrate, a gate insulation layer, an activation layer, an oxidation-blocking layer, a data wiring, a protection layer and a pixel electrode. The gate wiring includes a gate line and a gate electrode. The gate insulation layer is formed on the base substrate to cover the gate wiring. The activation layer is formed on the gate insulation layer. The oxidation-blocking layer is formed on the activation layer. The data wiring includes a data line, a source electrode and a drain electrode. The source and drain electrodes are disposed on the oxidation-blocking layer therefore lowering the on-current (“Ion”) for turning on the TFT and increasing the off-current (“Ioff”) for turning off the TFT due to the oxidation-blocking layer.
    Type: Application
    Filed: March 8, 2006
    Publication date: September 14, 2006
    Inventors: Yang-Ho Bae, Chang-Oh Jeong, Min-Seok Oh, Je-Hun Lee, Beom-Seok Cho
  • Publication number: 20060175706
    Abstract: Disclosed is display part such as a TFT array panel comprising an aluminum layer, and a molybdenum layer formed on the aluminum layer. The thickness of the molybdenum layer may be about 10% to about 40% the thickness of the aluminum layer. As a result, a top surface of the aluminum layer may have a width about equal to a bottom surface of the molybdenum layer. Accordingly, it is an aspect of the present invention to provide a TFT array panel comprising an aluminum wiring on which aluminum protrusion is reduced or eliminated.
    Type: Application
    Filed: December 21, 2005
    Publication date: August 10, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je-hun Lee, Chang-oh Jeong, Jin-kwan Kim, Yang-ho Bae, Beom-seok Cho, Jun-hyung Souk
  • Publication number: 20060163582
    Abstract: The present invention relates to a thin film transistor substrate and a metal wiring method thereof, more particularly to a thin film transistor substrate comprising self-assembled monolayers between the substrate and the metal wiring, and a metal wiring method thereof. Since a thin film transistor substrate of the present invention comprises three-dimensionally cross-linked self-assembled monolayers between the Si surface and the metal wiring, it has good adhesion ability and anti-diffusion ability.
    Type: Application
    Filed: March 26, 2003
    Publication date: July 27, 2006
    Inventors: Jae-Gab Lee, Chang-Oh Jeong, Myung-Mo Sung, Hee-Jung Yang, Beom-Seok Cho
  • Publication number: 20060163741
    Abstract: A TFT array panel including a lower aluminum layer, an aluminum nitride layer formed on the lower aluminum layer, and an upper aluminum layer formed on the aluminum nitride layer is presented. This TFT array panel including an aluminum wiring line reduces or even prevents the formation of a hillock that could create a short circuit. Also presented is a method of fabricating such TFT array panel.
    Type: Application
    Filed: January 9, 2006
    Publication date: July 27, 2006
    Inventors: Yang-ho Bae, Je-hun Lee, Beom-seok Cho, Chang-oh Jeong
  • Publication number: 20060151788
    Abstract: There are provided a TFT substrate for an LCD apparatus and a method of manufacturing the same. A substrate (10), a diffusion barrier layer (11) and a copper alloy layer (12) are formed on the TFT substrate, consecutively. The copper alloy includes a material from about 0.5 at % to about 15 at % to form a gate wiring layer. The material is used to form the diffusion barrier layer (11). A compound that comprises a material such as Zr, Ti, Hf, V, Ta, Ni, Cr, Nb, Co, Mn, Mo, W, Rh, Pd, Pt, etc. is deposited on the diffusion barrier layer (11) to a thickness from about 50 ? to about 5,000 ?. The deposited compound is then heat treated to convert the deposited compound into a silicide compound (11b). The transistor substrate has low resistance and high conductance. Also, etching process is simplified, and a mutual diffusion is prevented by means of the thin diffusion barrier layer.
    Type: Application
    Filed: October 27, 2003
    Publication date: July 13, 2006
    Inventors: Beom-Seok Cho, Chang-Oh Jeong
  • Publication number: 20060145255
    Abstract: Disclosed are a thin film transistor substrate of an LCD device and a method of manufacturing the same. The thin film transistor substrate includes a nickel-silicide layer formed on an insulating layer pattern including silicon and a metal layer formed on the nickel-silicide layer. Nickel is coated on the insulating layer pattern including silicon and a metal material is coated on the nickel-coated layer. After that, a heat treatment is performed at about 200 to about 350° C. to obtain the nickel-silicide layer. Since the thin film transistor substrate of the LCD device is manufactured by applying the nickel-silicide wiring, a device having low resistivity and good ohmic contact property can be obtained.
    Type: Application
    Filed: February 28, 2004
    Publication date: July 6, 2006
    Inventors: Chang-Oh Jeong, Beom-Seok Cho, Hee-Hwan Choe
  • Publication number: 20060113670
    Abstract: A multi-layer wiring for use with thin film transistors (TFTs), methods of manufacturing the multi-layer wiring, and TFTs employing the multi-layer wiring are provided. In one embodiment, the multi-layer wiring includes a main wiring and a sub-wiring on the main wiring. The main wiring includes a first metal and the sub-wiring includes an alloy wherein a majority of the alloy is the first metal. The multi-layer wiring can exhibit decreased electrical resistance and a reduced tendency to develop malfunctions such as hillocks or spiking. The multi-layer wiring can also exhibit improved contact characteristics with other conductive elements of TFT display devices.
    Type: Application
    Filed: September 7, 2005
    Publication date: June 1, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Je-Hun Lee, Beom-Seok Cho, Chang-Oh Jeong, Yang-Ho Bae