Patents by Inventor Jong-Wan Ma

Jong-Wan Ma 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: 11956998
    Abstract: A display device includes: a first substrate including a pixel area and a transmissive area; a thin-film transistor on the first substrate; a planarization layer on the thin-film transistor; a first light emitting electrode on the planarization layer; a bank covering a part of the first light emitting electrode; a light emitting layer on the first light emitting electrode; and a second light emitting electrode on the light emitting layer and the bank. The transmissive area includes a transmissive hole penetrating the bank and the planarization layer.
    Type: Grant
    Filed: January 4, 2023
    Date of Patent: April 9, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Wan Son, Moo Soon Ko, Rae Young Gwak, Jin Seock Ma, Min Jeong Park, Ki Bok Yoo, So La Lee, Jin Goo Jung, Jong Won Chae, Ye Ji Han
  • Patent number: 9362220
    Abstract: A semiconductor device, including a substrate having an active region defined therein, a plurality of bit lines extending on the substrate in a first direction, a plurality of interconnection lines extending on the substrate in a second direction, a pad electrically connected to the plurality of interconnection lines and configured to apply an external voltage, a plurality of metal contacts electrically connecting the interconnection lines and the plurality of bit lines, and a plurality of bit line contacts that are in contact with the active region and electrically connect the plurality of bit lines and the active region, wherein a size of at least some of the bit line contacts and/or at least some of the metal contacts vary based on a distance of the respective bit line contact or the metal contact from the pad.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Jong Kim, Jae-Hyeon Park, Sung-Hoon Bae, Jong-Wan Ma
  • Publication number: 20150115457
    Abstract: A semiconductor device, including a substrate having an active region defined therein, a plurality of bit lines extending on the substrate in a first direction, a plurality of interconnection lines extending on the substrate in a second direction, a pad electrically connected to the plurality of interconnection lines and configured to apply an external voltage, a plurality of metal contacts electrically connecting the interconnection lines and the plurality of bit lines, and a plurality of bit line contacts that are in contact with the active region and electrically connect the plurality of bit lines and the active region, wherein a size of at least some of the bit line contacts and/or at least some of the metal contacts vary based on a distance of the respective bit line contact or the metal contact from the pad.
    Type: Application
    Filed: December 31, 2014
    Publication date: April 30, 2015
    Inventors: Sang-Jong KIM, Jae-Hyeon PARK, Sung-Hoon BAE, Jong-Wan MA
  • Patent number: 8928033
    Abstract: A semiconductor device, including a substrate having an active region defined therein, a plurality of bit lines extending on the substrate in a first direction, a plurality of interconnection lines extending on the substrate in a second direction, a pad electrically connected to the plurality of interconnection lines and configured to apply an external voltage, a plurality of metal contacts electrically connecting the interconnection lines and the plurality of bit lines, and a plurality of bit line contacts that are in contact with the active region and electrically connect the plurality of bit lines and the active region, wherein a size of at least some of the bit line contacts and/or at least some of the metal contacts vary based on a distance of the respective bit line contact or the metal contact from the pad.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: January 6, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Jong Kim, Jae-Hyeon Park, Sung-Hoon Bae, Jong-Wan Ma
  • Publication number: 20120119300
    Abstract: A semiconductor device, including a substrate having an active region defined therein, a plurality of bit lines extending on the substrate in a first direction, a plurality of interconnection lines extending on the substrate in a second direction, a pad electrically connected to the plurality of interconnection lines and configured to apply an external voltage, a plurality of metal contacts electrically connecting the interconnection lines and the plurality of bit lines, and a plurality of bit line contacts that are in contact with the active region and electrically connect the plurality of bit lines and the active region, wherein a size of at least some of the bit line contacts and/or at least some of the metal contacts vary based on a distance of the respective bit line contact or the metal contact from the pad.
    Type: Application
    Filed: November 2, 2011
    Publication date: May 17, 2012
    Inventors: Sang-Jong KIM, Jae-Hyeon Park, Sung-Hoon Bae, Jong-Wan Ma
  • Patent number: 7825496
    Abstract: A semiconductor device includes an interlayer insulating layer on a semiconductor substrate, at least one plug on the semiconductor substrate, the plug extending through the interlayer insulating layer toward an upper portion of the semiconductor substrate, the plug having a lower part with a first diameter and an upper part with a second diameter different from the first diameter, a filling pattern on the interlayer insulating layer, the filling pattern surrounding the upper part of the plug, and an upper surface of the filling pattern being substantially coplanar with an upper surface of the plug, the upper surface of the plug facing away from the semiconductor substrate, and a protection pattern on the upper part of the plug, the protection pattern being between the plug, the filling pattern, and the interlayer insulating layer.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: November 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Wan Ma, Joon-Mo Kwon
  • Publication number: 20090134525
    Abstract: A semiconductor device includes an interlayer insulating layer on a semiconductor substrate, at least one plug on the semiconductor substrate, the plug extending through the interlayer insulating layer toward an upper portion of the semiconductor substrate, the plug having a lower part with a first diameter and an upper part with a second diameter different from the first diameter, a filling pattern on the interlayer insulating layer, the filling pattern surrounding the upper part of the plug, and an upper surface of the filling pattern being substantially coplanar with an upper surface of the plug, the upper surface of the plug facing away from the semiconductor substrate, and a protection pattern on the upper part of the plug, the protection pattern being between the plug, the filling pattern, and the interlayer insulating layer.
    Type: Application
    Filed: November 24, 2008
    Publication date: May 28, 2009
    Inventors: Jong-Wan Ma, Joon-Mo Kwon