Patents by Inventor Gwi-Deok Lee

Gwi-Deok 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: 11101327
    Abstract: An image sensor includes a color filter on a substrate, first and second organic photodiodes on the color filter, and first and second capacitors connected to the first and second organic photodiodes, respectively. The color filter is spaced apart from a first surface of the substrate. Each of the first and second organic photodiodes face an upper surface of the color filter. The first capacitor includes a first conductive pattern and a first insulating space. The first conductive pattern extends through the substrate, and the first insulating spacer surrounds a sidewall of the first conductive pattern and has a first thickness. The second capacitor includes a second conductive pattern and a second insulating spacer. The second conductive pattern extends through the substrate, and the second insulating spacer surrounds a sidewall of the second conductive pattern and has a second thickness smaller than the first thickness.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: August 24, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Mo Im, Gwi-Deok Lee, Tae-Yon Lee, Masaru Ishii
  • Publication number: 20200227482
    Abstract: An image sensor includes a color filter on a substrate, first and second organic photodiodes on the color filter, and first and second capacitors connected to the first and second organic photodiodes, respectively. The color filter is spaced apart from a first surface of the substrate. Each of the first and second organic photodiodes face an upper surface of the color filter. The first capacitor includes a first conductive pattern and a first insulating space. The first conductive pattern extends through the substrate, and the first insulating spacer surrounds a sidewall of the first conductive pattern and has a first thickness. The second capacitor includes a second conductive pattern and a second insulating spacer. The second conductive pattern extends through the substrate, and the second insulating spacer surrounds a sidewall of the second conductive pattern and has a second thickness smaller than the first thickness.
    Type: Application
    Filed: March 25, 2020
    Publication date: July 16, 2020
    Inventors: Dong-Mo IM, Gwi-Deok LEE, Tae-Yon LEE, Masaru ISHII
  • Patent number: 10615228
    Abstract: An image sensor includes a color filter on a substrate, first and second organic photodiodes on the color filter, and first and second capacitors connected to the first and second organic photodiodes, respectively. The color filter is spaced apart from a first surface of the substrate. Each of the first and second organic photodiodes face an upper surface of the color filter. The first capacitor includes a first conductive pattern and a first insulating space. The first conductive pattern extends through the substrate, and the first insulating spacer surrounds a sidewall of the first conductive pattern and has a first thickness. The second capacitor includes a second conductive pattern and a second insulating spacer. The second conductive pattern extends through the substrate, and the second insulating spacer surrounds a sidewall of the second conductive pattern and has a second thickness smaller than the first thickness.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: April 7, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Mo Im, Gwi-Deok Lee, Tae-Yon Lee, Masaru Ishii
  • Patent number: 10529755
    Abstract: An image sensor includes a first photoelectric conversion layer that is configured to convert light to a first signal. The image sensor also includes a transfer transistor. The transfer transistor includes a storage node region which stores the first signal. The transfer transistor also includes a transfer gate which transfers the stored first signal, and a floating diffusion region that receives the first signal. The image sensor includes a reset transistor that resets the floating diffusion region, and a drive transistor which receives a pixel voltage. The drive transistor generates an output voltage. The image sensor also includes a selection transistor which outputs the output voltage. A reset drain voltage is applied to a drain electrode of the reset transistor, and is independent of the pixel voltage. The reset drain voltage ranges from about 0.1V to about 1.0V.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: January 7, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Yon Lee, Gwi Deok Lee, Masaru Ishii, Young Gu Jin
  • Publication number: 20190131349
    Abstract: An image sensor includes a color filter on a substrate, first and second organic photodiodes on the color filter, and first and second capacitors connected to the first and second organic photodiodes, respectively. The color filter is spaced apart from a first surface of the substrate. Each of the first and second organic photodiodes face an upper surface of the color filter. The first capacitor includes a first conductive pattern and a first insulating space. The first conductive pattern extends through the substrate, and the first insulating spacer surrounds a sidewall of the first conductive pattern and has a first thickness. The second capacitor includes a second conductive pattern and a second insulating spacer. The second conductive pattern extends through the substrate, and the second insulating spacer surrounds a sidewall of the second conductive pattern and has a second thickness smaller than the first thickness.
    Type: Application
    Filed: August 21, 2018
    Publication date: May 2, 2019
    Inventors: Dong-Mo IM, Gwi-Deok LEE, Tae-Yon LEE, Masaru ISHII
  • Publication number: 20180190699
    Abstract: An image sensor includes a first photoelectric conversion layer that is configured to convert light to a first signal. The image sensor also includes a transfer transistor. The transfer transistor includes a storage node region which stores the first signal. The transfer transistor also includes a transfer gate which transfers the stored first signal, and a floating diffusion region that receives the first signal. The image sensor includes a reset transistor that resets the floating diffusion region, and a drive transistor which receives a pixel voltage. The drive transistor generates an output voltage. The image sensor also includes a selection transistor which outputs the output voltage. A reset drain voltage is applied to a drain electrode of the reset transistor, and is independent of the pixel voltage. The reset drain voltage ranges from about 0.1V to about 1.0V.
    Type: Application
    Filed: September 14, 2017
    Publication date: July 5, 2018
    Inventors: TAE YON LEE, GWI DEOK LEE, MASARU ISHll, YOUNG GU JIN
  • Patent number: 9385166
    Abstract: An image sensor includes a semiconductor layer, an organic photoelectric conversion portion disposed on an upper surface of the semiconductor layer and that converts a color component of incident light into a corresponding electrical signal, a transistor layer disposed on a lower surface of the semiconductor layer and including a pixel circuit that receives the electrical signal, and penetration wiring that laterally penetrates a side surface of the semiconductor layer between the upper and lower surfaces and that electrically connects the organic photoelectric conversion portion with the pixel circuit to communicate the electrical signal.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: July 5, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Kyu Jung, Sang-Chul Sul, Gwi-Deok Lee, Tae-Yon Lee, Myung-Won Lee
  • Patent number: 9300887
    Abstract: An image sensor includes a photoelectric conversion unit, a signal generation unit, and a feedback unit. The photoelectric conversion unit is formed above a substrate and detects incident light to generate photo-charges based on a drive voltage. The signal generation unit is formed on the substrate and generates an analog signal based on the photo-charges. The feedback unit generates the drive voltage based on an amount of the photo-charges generated from the photoelectric conversion unit. The image sensor may perform a wide dynamic range (WDR) function.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: March 29, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gwi-Deok Lee, Kyung-Ho Lee, Hiroshige Goto, Sae-Young Kim, Sang-Chul Sul, Myung-Won Lee
  • Publication number: 20150221702
    Abstract: Provided are an image sensor and an image processing device. The image sensor includes a semiconductor layer, an organic photoelectric conversion portion disposed on an upper surface of the semiconductor layer and converts a color component of incident light into a corresponding electrical signal, a transistor layer disposed on a lower surface of the semiconductor layer and including a pixel circuit that receives the electrical signal, and penetration wiring that laterally penetrates a side surface of the semiconductor layer between the upper and lower surfaces and that electrically connects the organic photoelectric conversion portion with the pixel circuit to communicate the electrical signal.
    Type: Application
    Filed: January 14, 2015
    Publication date: August 6, 2015
    Inventors: JUNG-KYU JUNG, SANG-CHUL SUL, GWI-DEOK LEE, TAE-YON LEE, MYUNG-WON LEE
  • Publication number: 20140313383
    Abstract: An image sensor includes a photoelectric conversion unit, a signal generation unit, and a feedback unit. The photoelectric conversion unit is formed above a substrate and detects incident light to generate photo-charges based on a drive voltage. The signal generation unit is formed on the substrate and generates an analog signal based on the photo-charges. The feedback unit generates the drive voltage based on an amount of the photo-charges generated from the photoelectric conversion unit. The image sensor may perform a wide dynamic range (WDR) function.
    Type: Application
    Filed: April 18, 2014
    Publication date: October 23, 2014
    Applicant: Samsung Electronics Co, Ltd.
    Inventors: Gwi-Deok Lee, Kyung-Ho Lee, Hiroshige Goto, Sae-Young Kim, Sang-Chul Sul, Myung-Won Lee