Patents by Inventor Bong-Joo Kang

Bong-Joo Kang 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: 7883942
    Abstract: Gate lines are formed on a substrate. A gate insulating layer, an intrinsic a-Si layer, an extrinsic a-Si layer, a lower film of Cr and an upper film of Al containing metal are sequentially deposited. A photoresist having thicker first portions on wire areas and thinner second portions on channel areas is formed on the upper film. The upper film on remaining areas are wet-etched, and the lower film and the a-Si layers on the remaining areas are dry-etched along with the second portions of the photoresist. The upper film, the lower film, and the extrinsic a-Si layer on the channel areas are removed. The removal of the upper film and the lower film on the channel areas are performed by wet etching, and the first portions of the photoresist are removed after the removal of the upper film on the channel areas.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: February 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bum-Gee Baek, Kwon-Young Choi, Young-Joon Rhee, Bong-Joo Kang, Seung-Taek Lim, Hyang-Shik Kong, Won-Joo Kim
  • Patent number: 7608494
    Abstract: A thin film transistor array panel includes an insulating substrate, a gate wire formed on the insulating substrate. A gate insulating layer covers the gate wire. A semiconductor pattern is formed on the gate insulating layer. A data wire having source electrodes, drain electrodes and data lines is formed on the gate insulating layer and the semiconductor pattern. A protective layer is formed on the data wire. Pixel electrodes connected to the drain electrode via contact holes are formed on the protective layer. The gate wire and the data wire are made of Ag alloy containing Ag and an additive including at least one selected from Zn, In, Sn and Cr.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Gab Lee, Bong-Joo Kang, Beom-Seok Cho, Chang-Oh Jeong
  • Publication number: 20080227245
    Abstract: A thin film transistor array panel includes an insulating substrate, a gate wire formed on the insulating substrate. A gate insulating layer covers the gate wire. A semiconductor pattern is formed on the gate insulating layer. A data wire having source electrodes, drain electrodes and data lines is formed on the gate insulating layer and the semiconductor pattern. A protective layer is formed on the data wire. Pixel electrodes connected to the drain electrode via contact holes are formed on the protective layer. The gate wire and the data wire are made of Ag alloy containing Ag and an additive including at least one selected from Zn, In, Sn and Cr.
    Type: Application
    Filed: April 30, 2008
    Publication date: September 18, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Gab LEE, Bong-Joo KANG, Beom-Seok CHO, Chang-Oh JEONG
  • Patent number: 7375373
    Abstract: A thin film transistor array panel includes an insulating substrate, a gate wire formed on the insulating substrate. A gate insulating layer covers the gate wire. A semiconductor pattern is formed on the gate insulating layer. A data wire having source electrodes, drain electrodes and data lines is formed on the gate insulating layer and the semiconductor pattern. A protective layer is formed on the data wire. Pixel electrodes connected to the drain electrode via contact holes are formed on the protective layer. The gate wire and the data wire are made of Ag alloy containing Ag and an additive including at least one selected from Zn, In, Sn and Cr.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: May 20, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Gab Lee, Bong-Joo Kang, Beom-Seok Cho, Chang-Oh Jeong
  • Publication number: 20080044996
    Abstract: Gate lines are formed on a substrate. A gate insulating layer, an intrinsic a—Si layer, an extrinsic a—Si layer, a lower film of Cr and an upper film of Al containing metal are sequentially deposited. A photoresist having thicker first portions on wire areas and thinner second portions on channel areas is formed on the upper film. The upper film on remaining areas are wet-etched, and the lower film and the a—Si layers on the remaining areas are dry-etched along with the second portions of the photoresist. The upper film, the lower film, and the extrinsic a—Si layer on the channel areas are removed. The removal of the upper film and the lower film on the channel areas are performed by wet etching, and the first portions of the photoresist are removed after the removal of the upper film on the channel areas.
    Type: Application
    Filed: October 19, 2007
    Publication date: February 21, 2008
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Bum-Gee BAEK, Kwon-Young CHOI, Young-Joon RHEE, Bong-Joo KANG, Seung-Taek LIM, Hyang-Shik KONG, Won-Joo KIM
  • Patent number: 7294855
    Abstract: Gate lines are formed on a substrate. A gate insulating layer, an intrinsic a-Si layer, an extrinsic a-Si layer, a lower film of Cr and an upper film of Al containing metal are sequentially deposited. A photoresist having thicker first portions on wire areas and thinner second portions on channel areas is formed on the upper film. The upper film on remaining areas are wet-etched, and the lower film and the a-Si layers on the remaining areas are dry-etched along with the second portions of the photoresist. The upper film, the lower film, and the extrinsic a-Si layer on the channel areas are removed. The removal of the upper film and the lower film on the channel areas are performed by wet etching, and the first portions of the photoresist are removed after the removal of the upper film on the channel areas.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: November 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bum-Gee Baek, Kwon-Young Choi, Young-Joon Rhee, Bong-Joo Kang, Seung-Taek Lim, Hyang-Shik Kong, Won-Joo Kim
  • Patent number: 7276731
    Abstract: In a method for fabricating a thin film transistor array substrate, a glass substrate undergoes an oxygen plasma treatment. A silver or silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a gate line assembly proceeding in the horizontal direction. The gate line assembly includes gate lines, gate electrodes, and gate pads. Thereafter, a silicon nitride-based gate insulating layer is deposited onto the substrate, and a semiconductor layer and an ohmic contact layer are sequentially formed on the gate insulating layer. The semiconductor layer and the ohmic contact layer are HF-treated. A silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a data line assembly. The data line assembly includes data lines crossing over the gate lines, source electrodes, drain electrodes, and data pads.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: October 2, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Oh Jeong, Bong-Joo Kang, Jae-Gab Lee
  • Publication number: 20050145844
    Abstract: In a method for fabricating a thin film transistor array substrate, a glass substrate undergoes an oxygen plasma treatment. A silver or silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a gate line assembly proceeding in the horizontal direction. The gate line assembly includes gate lines, gate electrodes, and gate pads. Thereafter, a silicon nitride-based gate insulating layer is deposited onto the substrate, and a semiconductor layer and an ohmic contact layer are sequentially formed on the gate insulating layer. The semiconductor layer and the ohmic contact layer are HF-treated. A silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a data line assembly. The data line assembly includes data lines crossing over the gate lines, source electrodes, drain electrodes, and data pads.
    Type: Application
    Filed: February 10, 2005
    Publication date: July 7, 2005
    Inventors: Chang-Oh Jeong, Bong-Joo Kang, Jae-Gab Lee
  • Patent number: 6867108
    Abstract: In a method for fabricating a thin film transistor array substrate, a glass substrate undergoes an oxygen plasma treatment. A silver or silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a gate line assembly proceeding in the horizontal direction. The gate line assembly includes gate lines, gate electrodes, and gate pads. Thereafter, a silicon nitride-based gate insulating layer is deposited onto the substrate, and a semiconductor layer and an ohmic contact layer are sequentially formed on the gate insulating layer. The semiconductor layer and the ohmic contact layer are HF-treated. A silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a data line assembly. The data line assembly includes data lines crossing over the gate lines, source electrodes, drain electrodes, and data pads.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: March 15, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Oh Jeong, Bong-Joo Kang, Jae-Gab Lee
  • Publication number: 20040238886
    Abstract: A thin film transistor array panel includes an insulating substrate, a gate wire formed on the insulating substrate. A gate insulating layer covers the gate wire. A semiconductor pattern is formed on the gate insulating layer. A data wire having source electrodes, drain electrodes and data lines is formed on the gate insulating layer and the semiconductor pattern. A protective layer is formed on the data wire. Pixel electrodes connected to the drain electrode via contact holes are formned on the protective layer. The gate wire and the data wire are made of Ag alloy containing Ag and an additive including at least one selected from Zn, In, Sn and Cr.
    Type: Application
    Filed: December 23, 2003
    Publication date: December 2, 2004
    Inventors: Jae-Gab Lee, Bong-Joo Kang, Beom-Seok Cho, Chang-Oh Jeong
  • Publication number: 20040041149
    Abstract: Gate lines are formed on a substrate. A gate insulating layer, an intrinsic a-Si layer, an extrinsic a-Si layer, a lower film of Cr and an upper film of Al containing metal are sequentially deposited. A photoresist having thicker first portions on wire areas and thinner second portions on channel areas is formed on the upper film. The upper film on remaining areas are wet-etched, and the lower film and the a-Si layers on the remaining areas are dry-etched along with the second portions of the photoresist. The upper film, the lower film, and the extrinsic a-Si layer on the channel areas are removed. The removal of the upper film and the lower film on the channel areas are performed by wet etching, and the first portions of the photoresist are removed after the removal of the upper film on the channel areas.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 4, 2004
    Inventors: Bum-Gee Baek, Kwon-Young Choi, Young-Joon Rhee, Bong-Joo Kang, Seung-Taek Lim, Hyang-Shik Kong, Won-Joo Kim
  • Publication number: 20020151174
    Abstract: In a method for fabricating a thin film transistor array substrate, a glass substrate undergoes an oxygen plasma treatment. A silver or silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a gate line assembly proceeding in the horizontal direction. The gate line assembly includes gate lines, gate electrodes, and gate pads. Thereafter, a silicon nitride-based gate insulating layer is deposited onto the substrate, and a semiconductor layer and an ohmic contact layer are sequentially formed on the gate insulating layer. The semiconductor layer and the ohmic contact layer are HF-treated. A silver alloy-based conductive layer is deposited onto the substrate, and patterned to thereby form a data line assembly. The data line assembly includes data lines crossing over the gate lines, source electrodes, drain electrodes, and data pads.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 17, 2002
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang-Oh Jeong, Bong-Joo Kang, Jae-Gab Lee