Patents by Inventor Han Choon Lee

Han Choon 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).

  • Patent number: 7498262
    Abstract: A method for forming a thin film of a semiconductor device, which may include at least one of the following steps: Forming a Tantalum Nitride (TaN) film over a semiconductor substrate by atomic layer deposition. Forming a Tantalum (Ta) film by converting at least a portion of a Tantalum Nitride (TaN) film into Tantalum (Ta) by soaking the TaN film in a diluted HNO3 solution.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 3, 2009
    Assignee: Dongbu HiTek Co., Ltd.
    Inventors: In-Cheol Baek, Han-Choon Lee
  • Patent number: 7482276
    Abstract: A semiconductor device and method of manufacturing same, capable of preventing the material of a barrier metal layer from penetrating into an intermetallic insulating layer are provided. In an embodiment, the device can include: a first metal interconnection formed in a lower insulating layer on a semiconductor substrate; an intermetallic insulating layer formed on the lower insulating layer including the first metal interconnection, the intermetallic insulating layer having a via hole and a trench for a second metal interconnection connecting to the first metal interconnection; a carbon implantation layer formed on inner walls of the via hole and the trench of the intermetallic insulating layer; a barrier metal layer deposited on the first metal interconnection exposed through the via hole and on the carbon implantation layer; a via formed in the via hole; and the second metal interconnection formed in the trench.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: January 27, 2009
    Assignee: Dongbu Electronics, Co., Ltd.
    Inventors: Han Choon Lee, Kyung Min Park, Cheon Man Shim
  • Publication number: 20090023273
    Abstract: A method of fabricating a semiconductor device comprising forming a transistor on a semiconductor substrate, forming an interlayer insulating film on the semiconductor substrate to cover the transistor, forming a passivation film on the interlayer insulating film, and annealing the semiconductor substrate having the passivation film in a gas atmosphere comprising at least one gas selected from the group of boron, silicon and hydrogen.
    Type: Application
    Filed: July 18, 2008
    Publication date: January 22, 2009
    Applicant: DONGBU HITEK CO., LTD.
    Inventor: Han Choon LEE
  • Publication number: 20090004769
    Abstract: A method for manufacturing an image sensor is disclosed. The manufacturing method includes forming a unit pixel including a photodiode and a gate on a semiconductor substrate, forming an interlayer insulating layer on the semiconductor substrate including the unit pixel, planarizing the interlayer insulating layer, forming a protection layer with SiH4 on the interlayer insulating layer, and planarizing the protection layer.
    Type: Application
    Filed: June 24, 2008
    Publication date: January 1, 2009
    Applicant: DONGBU HITEK CO., LTD.
    Inventors: Young Seok JEONG, Han Choon LEE
  • Publication number: 20080315271
    Abstract: Disclosed are an image sensor and a method for fabricating the same. The method may include forming a gate, a photo diode, and a floating diffusion region on a pixel region of a semiconductor substrate; forming an oxide film on the pixel region and on an edge region of the semiconductor substrate; forming a sacrificial oxide layer by etching the oxide film using a photoresist pattern as a mask; forming a metal layer on the photoresist pattern, the gate, and the floating diffusion region; forming a salicide layer on the gate and the floating diffusion region; etching a remaining non-salicided portion of the metal layer, the photoresist pattern, and at least a portion of the sacrificial oxide layer; and forming an interlayer insulating film on the semiconductor substrate and planarizing the interlayer insulating film.
    Type: Application
    Filed: June 24, 2008
    Publication date: December 25, 2008
    Applicant: DONGBU HITEK CO., LTD.
    Inventors: In Cheol BAEK, Kyung Min PARK, Sun Chan LEE, Han Choon LEE
  • Publication number: 20080277790
    Abstract: A semiconductor device having a semiconductor substrate, an interlayer insulating layer formed on the substrate and having a contact hole partially exposing the substrate, and a diffusion barrier formed on the interlayer insulating layer and in the contact hole. The diffusion barrier comprises a plurality of TaSiN thin films. The present invention advantageously provides a semiconductor device with enhanced step coverage and reduced resistivity of a TaSiN layer.
    Type: Application
    Filed: July 1, 2008
    Publication date: November 13, 2008
    Inventor: Han-Choon LEE
  • Patent number: 7442639
    Abstract: A method for forming a plug of a semiconductor device according to a preferred embodiment includes forming a metal wiring on a semiconductor substrate, forming an interlayer dielectric layer on the semiconductor substrate having the metal wiring, forming a contact hole for partially exposing the metal wiring by selectively etching the interlayer dielectric layer, annealing the semiconductor substrate having the contact hole using NH3 gas, plasma processing the annealed semiconductor substrate using the NH3, and forming a barrier layer on the interlayer dielectric layer having the contact hole.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: October 28, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventors: Han-Choon Lee, Jin-Woo Park
  • Patent number: 7439175
    Abstract: A method for forming a thin film of a semiconductor device is provided. The method includes forming a TaN film on a semiconductor substrate, and converting a portion of the TaN film into a Ta film by reacting the TaN film with NO2. The Ta film is formed to have a thickness which is about half of the thickness of the TaN film.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: October 21, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Han-Choon Lee
  • Patent number: 7432193
    Abstract: A method for forming a thin film of a semiconductor device is provided. The method includes forming a TaN film on a semiconductor substrate by employing an atomic layer deposition method; and converting a part of the TaN film into a Ta by reacting the TaN film with NO2 to form a Ta film. The NO2 is formed by reacting NH3 with O2.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: October 7, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventors: In-Cheol Baek, Han-Choon Lee
  • Patent number: 7427561
    Abstract: A semiconductor device manufacturing method wherein a metal suicide layer is formed via an in-situ process. The method includes forming a gate electrode on a semiconductor substrate; forming an insulation side wall at either lateral surface of the gate electrode; forming a source/drain region in a surface of the semiconductor substrate at either side of the gate electrode; forming a metal layer on the surface of the semiconductor substrate including the gate electrode; performing a plasma treatment on the metal layer; forming a capping material layer on the metal layer; performing an annealing process upon the semiconductor substrate, to form a metal silicide layer on the surface of the semiconductor substrate at positions corresponding to the gate electrode and the source/drain region; and removing the capping material layer and the metal layer remained without reaction with the gate electrode and the semiconductor substrate.
    Type: Grant
    Filed: December 5, 2005
    Date of Patent: September 23, 2008
    Assignee: Dongbuanam Semiconductor, Inc.
    Inventor: Han Choon Lee
  • Patent number: 7407881
    Abstract: Enhanced step coverage and reduced resistivity of a TaSiN layer may be achieved when a semiconductor device is manufactured by: forming an interlayer insulating layer on a semiconductor substrate, the interlayer insulating layer having a contact hole that partially exposes the substrate; depositing a TaN thin film on the interlayer insulating layer and in the contact hole using a reaction gas containing a Ta precursor and a nitrogen source gas; removing impurities from the TaN thin film; forming a TaSiN thin film by reacting the impurity-removed TaN thin film with a silicon source gas, and repeating the TaN-depositing, impurity-removing, and silicon source gas-reacting steps.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: August 5, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Han-Choon Lee
  • Publication number: 20080157372
    Abstract: Provided is a method for forming a metal line of a semiconductor device. A trench is formed in an interlayer insulating layer formed on a semiconductor substrate. Copper is deposited in the trench to form a copper metal line, and a diffusion barrier layer is formed on the interlayer insulating layer and the copper metal line. A metal pad is formed on the diffusion barrier layer. In one embodiment, the diffusion barrier layer is formed of three layers, including TiSiN layers.
    Type: Application
    Filed: September 27, 2007
    Publication date: July 3, 2008
    Inventors: SUNG JOONG JOO, Han Choon Lee
  • Publication number: 20080157230
    Abstract: A semiconductor device and a fabricating method thereof are provided. The semiconductor device includes a gate insulating layer with a high dielectric constant (k) and a polysilicon layer on a gate metal layer. The gate metal layer can include silicon atoms. Electron mobility can be improved, and production residue and damage can be minimized.
    Type: Application
    Filed: October 22, 2007
    Publication date: July 3, 2008
    Inventor: HAN CHOON LEE
  • Publication number: 20080157375
    Abstract: Disclosed are a semiconductor device and a method for fabricating a metal interconnection of a semiconductor device. The method includes the steps of forming a dielectric layer on a semiconductor substrate including a lower interconnection, forming a trench in the interlayer dielectric layer that exposes the lower interconnection, forming a diffusion barrier in the trench and on the interlayer dielectric layer, forming a copper seed layer on the diffusion barrier, implanting a metal dopant into the copper seed layer, forming a copper metal interconnection on the copper seed layer into which the metal dopant is implanted, and forming an alloy layer from the copper seed layer and the metal dopant.
    Type: Application
    Filed: August 13, 2007
    Publication date: July 3, 2008
    Inventor: Han Choon Lee
  • Publication number: 20080145988
    Abstract: A method for fabricating a semiconductor device is provided. A nickel layer is deposited on a semiconductor substrate and plasma-processed. Rapid thermal processing is performed on the plasma-processed nickel layer to form a nickel silicide layer. The portion of the nickel layer that has not reacted with silicon is then removed.
    Type: Application
    Filed: September 28, 2007
    Publication date: June 19, 2008
    Inventors: DONG KI JEON, Han Choon Lee
  • Publication number: 20080102556
    Abstract: A method of manufacturing a CMOS image sensor manufacturing includes forming a plurality of metal pads over a semiconductor substrate; electrically connecting the metal pads to lower conductive film patterns of multi-layer metal wires using metal contacts; depositing an insulation film over the metal pads; patterning the insulation film to expose at least a portion of the upper surface of the metal pads; and removing impurities from an uppermost surface of the metal pads.
    Type: Application
    Filed: October 9, 2007
    Publication date: May 1, 2008
    Inventor: Han-Choon Lee
  • Publication number: 20080057700
    Abstract: Disclosed are an apparatus and a method for manufacturing a semiconductor device. The apparatus comprises a transfer chamber for transferring a substrate, a first process chamber connected to the transfer chamber configured to form a TiSiN layer on the substrate, a second process chamber connected to the transfer chamber configured to form a tantalum layer on the TiSiN layer, and a third process chamber connected to the transfer chamber configured to form a copper seed layer on the tantalum layer. After forming the TiSiN layer, a portion of the TiSiN layer in contact with the lower metal interconnection is etched, the tantalum layer is formed on the TiSiN layer in contact with the exposed lower metal interconnection, the copper seed layer is formed on the tantalum layer, and then the copper interconnection is formed on the copper seed layer. In this way, the copper interconnection can be efficiently formed.
    Type: Application
    Filed: August 24, 2007
    Publication date: March 6, 2008
    Inventor: Han Choon Lee
  • Publication number: 20080048289
    Abstract: An RF inductor of a semiconductor device and a method of fabricating the same are provided. First and second interlayer dielectric layers are formed on an insulating layer and a lower metal interconnection. A via hole and a spiral-shaped trench are formed in the first and second interlayer dielectric layers. A TiSiN layer is formed on the inner wall of the trench, and a copper interconnection is formed in the trench.
    Type: Application
    Filed: August 28, 2007
    Publication date: February 28, 2008
    Inventor: HAN CHOON LEE
  • Publication number: 20080048338
    Abstract: A semiconductor device and a fabricating method thereof are provided. An insulating layer pattern has a via hole exposing a lower metal layer, and a copper via is provided inside the via hole. A TiSiN layer is disposed on the insulating layer pattern and the copper via, and an interconnection structure is disposed on the TiSiN layer.
    Type: Application
    Filed: August 28, 2007
    Publication date: February 28, 2008
    Inventor: HAN CHOON LEE
  • Publication number: 20080029896
    Abstract: A System In Package (SIP) semiconductor device and a method for manufacturing a SIP device. A TiSiN film may be used as a diffusion barrier film for metal wiring in a SIP semiconductor device. A TiSiN film may provide relatively good step coverage in a relatively easy formation process, which may maximize reliability of a semiconductor device.
    Type: Application
    Filed: July 23, 2007
    Publication date: February 7, 2008
    Inventor: Han-Choon Lee