Patents by Inventor Dae-kil Cha

Dae-kil Cha 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: 8976277
    Abstract: Provided is an image sensor having a depth sensor. The image sensor includes a substrate including a visible light region and a non-visible light region, a first well and a second well having a first conductivity type and in the non-visible light perception region, and a first gate and a second gate configured to receive voltages of opposite phases, respectively, and apply voltages to the first well and the second well, respectively.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: March 10, 2015
    Assignee: Samsung Electronics Gyeonggi-do
    Inventors: Eric R. Fossum, Soo-Jung Hwang, Young-Gu Jin, Yoon-Dong Park, Dae-Kil Cha
  • Patent number: 8803273
    Abstract: A high sensitivity image sensor including a pixel, the pixel including a single electron field effect transistor (SEFET), the SEFET including a first conductive type well in a second conductive type substrate, second conductive type source and drain regions in the well and a first conductive type gate region in the well between the source and the drain regions.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: August 12, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eric R. Fossum, Dae-Kil Cha, Young-Gu Jin, Yoon-Dong Park, Soo-Jung Hwang
  • Publication number: 20140008707
    Abstract: A high sensitivity image sensor including a pixel, the pixel including a single electron field effect transistor (SEFET), the SEFET including a first conductive type well in a second conductive type substrate, second conductive type source and drain regions in the well and a first conductive type gate region in the well between the source and the drain regions.
    Type: Application
    Filed: September 10, 2013
    Publication date: January 9, 2014
    Inventors: Eric R. FOSSUM, Dae-Kil CHA, Young-Gu JIN, Yoon-Dong PARK, Soo-Jung HWANG
  • Patent number: 8624665
    Abstract: Provided is a method of operating a semiconductor device, wherein an operating mode is set by adjusting timing of a voltage pulse or by adjusting a voltage level of the voltage pulse.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: January 7, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-moo Choi, Won-joo Kim, Tae-hee Lee, Dae-kil Cha
  • Publication number: 20130320406
    Abstract: An image sensor device may include a dual-gated charge storage region within a substrate. The dual-gated charge storage region includes first and second diodes within a common charge generating region. This charge generating region is configured to receive light incident on a surface of the image sensor device. The first and second diodes include respective first conductivity type regions responsive to first and second gate signals, respectively. These first and second gate signals are active during non-overlapping time intervals.
    Type: Application
    Filed: August 8, 2013
    Publication date: December 5, 2013
    Inventors: Eric R. Fossum, Young Gu Jin, Soo Jung Hwang, Dae Kil Cha, Yoon Dong Park, Jung Chak Ahn, Kyoung Sik Moon
  • Patent number: 8546901
    Abstract: A high sensitivity image sensor including a pixel, the pixel including a single electron field effect transistor (SEFET), the SEFET including a first conductive type well in a second conductive type substrate, second conductive type source and drain regions in the well and a first conductive type gate region in the well between the source and the drain regions.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: October 1, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eric R. Fossum, Dae-Kil Cha, Young-Gu Jin, Yoon-Dong Park, Soo-Jung Hwang
  • Patent number: 8520104
    Abstract: An image sensor device may include a dual-gated charge storage region within a substrate. The dual-gated charge storage region includes first and second diodes within a common charge generating region. This charge generating region is configured to receive light incident on a surface of the image sensor device. The first and second diodes include respective first conductivity type regions responsive to first and second gate signals, respectively. These first and second gate signals are active during non-overlapping time intervals.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 27, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eric R. Fossum, Young Gu Jin, Soo Jung Hwang, Dae Kil Cha, Yoon Dong Park, Jung Chak Ahn, Kyoung Sik Moon
  • Patent number: 8294880
    Abstract: Provided are a distance measuring sensor including a double transfer gate, and a three dimensional color image sensor including the distance measuring sensor. The distance measuring sensor may include first and second charge storage regions which are spaced apart from each other on a substrate doped with a first impurity, the first and second charge storage regions being doped with a second impurity; a photoelectric conversion region between the first and second charge storage regions on the substrate, being doped with the second impurity, and generating photo-charges by receiving light; and first and second transfer gates which are formed between the photoelectric conversion region and the first and second charge storage regions above the substrate to selectively transfer the photo-charges in the photoelectric conversion region to the first and second charge storage regions.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 23, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-gu Jin, Dae-kil Cha, Seung-hoon Lee, Yoon-dong Park
  • Patent number: 8258542
    Abstract: Semiconductor devices and semiconductor apparatuses including the same are provided. The semiconductor devices include a body region disposed on a semiconductor substrate, gate patterns disposed on the semiconductor substrate and on opposing sides of the body region, and first and second impurity doped regions disposed on an upper surface of the body region. The gate patterns may be separated from the first and second impurity doped regions by, or greater than, a desired distance, such that the gate patterns do not to overlap the first and second impurity doped regions in a direction perpendicular to the first and second impurity doped regions.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: September 4, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-joo Kim, Dae-kil Cha, Tae-hee Lee, Yoon-dong Park
  • Patent number: 8154640
    Abstract: An image sensor includes a plurality of unit pixels arranged in an array. Each unit pixel includes a plurality of sub-pixels configured to be irradiated by light having the same wavelength. Each sub-pixel includes a plurality of floating body transistors. Each floating body transistor includes a source region, a drain region, a floating body region between the source region and the drain region, and a gate electrode formed on the floating body region.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: April 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dae-kil Cha, Bok-ki Min, Young-gu Jin, Won-joo Kim, Seung-hoon Lee, Yoon-dong Park
  • Patent number: 8143685
    Abstract: An image sensor includes a plurality of pixels disposed in an array, each pixel comprising a first region and a second region, the first region and the second region separated from each other in a semiconductor layer, and doped with impurities having different conductivities from each other, a photoelectric conversion region formed between the first and second regions, and at least one metal nanodot that focuses an incident light onto the photoelectric conversion region.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: March 27, 2012
    Assignee: Samsung Electronics CP., Ltd.
    Inventors: Dae-kil Cha, Young-gu Jin, Bok-ki Min, Yoon-dong Park
  • Patent number: 8130442
    Abstract: An optical amplifying medium, a method of manufacturing the optical amplifying medium are provided, and an optical device comprising the optical amplifying medium. The optical amplifying medium includes a multi-layer structure in which a first material layer doped with an activator and a second material layer that comprises a sensitizer are stacked.
    Type: Grant
    Filed: September 8, 2008
    Date of Patent: March 6, 2012
    Assignees: Samsung Electronics Co., Ltd., Korea Advanced Institute of Science and Technology
    Inventors: Dae-kil Cha, Jung-hoon Shin, Yoon-dong Park, Young-gu Jin, Moon-seung Yang, In-sung Joe, Jee-soo Chang
  • Publication number: 20120012899
    Abstract: Provided are a distance measuring sensor including a double transfer gate, and a three dimensional color image sensor including the distance measuring sensor. The distance measuring sensor may include first and second charge storage regions which are spaced apart from each other on a substrate doped with a first impurity, the first and second charge storage regions being doped with a second impurity; a photoelectric conversion region between the first and second charge storage regions on the substrate, being doped with the second impurity, and generating photo-charges by receiving light; and first and second transfer gates which are formed between the photoelectric conversion region and the first and second charge storage regions above the substrate to selectively transfer the photo-charges in the photoelectric conversion region to the first and second charge storage regions.
    Type: Application
    Filed: September 21, 2011
    Publication date: January 19, 2012
    Inventors: Young-gu Jin, Dae-Kil Cha, Seung-hoon Lee, Yoon-dong Park
  • Patent number: 8035806
    Abstract: Provided are a distance measuring sensor including a double transfer gate, and a three dimensional color image sensor including the distance measuring sensor. The distance measuring sensor may include first and second charge storage regions which are spaced apart from each other on a substrate doped with a first impurity, the first and second charge storage regions being doped with a second impurity; a photoelectric conversion region between the first and second charge storage regions on the substrate, being doped with the second impurity, and generating photo-charges by receiving light; and first and second transfer gates which are formed between the photoelectric conversion region and the first and second charge storage regions above the substrate to selectively transfer the photo-charges in the photoelectric conversion region to the first and second charge storage regions.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: October 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-gu Jin, Dae-kil Cha, Seung-hoon Lee, Yoon-dong Park
  • Publication number: 20110121390
    Abstract: Semiconductor substrates and methods of manufacturing the same are provided. The semiconductor substrates include a substrate region, an insulation region and a floating body region. The insulation region is disposed on the substrate region. The floating body region is separated from the substrate region by the insulation region and is disposed on the insulation region. The substrate region and the floating body region are formed of materials having identical characteristics. The method of manufacturing the semiconductor substrate including forming at least one floating body pattern by etching a bulk substrate, separating the bulk substrate into a substrate region and a floating body region by etching a lower middle portion of the floating body pattern, and filling an insulating material between the floating body region and the substrate region.
    Type: Application
    Filed: January 26, 2011
    Publication date: May 26, 2011
    Inventors: Won-joo Kim, Tae-hee Lee, Dae-kil Cha, Yoon-dong Park
  • Publication number: 20110074989
    Abstract: Provided is an image sensor having a depth sensor. The image sensor includes a substrate including a visible light region and a non-visible light region, a first well and a second well having a first conductivity type and in the non-visible light perception region, and a first gate and a second gate configured to receive voltages of opposite phases, respectively, and apply voltages to the first well and the second well, respectively.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 31, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eric R. Fossum, Soo-Jung Hwang, Young-Gu Jin, Yoon-Dong Park, Dae-Kil Cha
  • Patent number: 7902007
    Abstract: Semiconductor substrates and methods of manufacturing the same are provided. The semiconductor substrates include a substrate region, an insulation region and a floating body region. The insulation region is disposed on the substrate region. The floating body region is separated from the substrate region by the insulation region and is disposed on the insulation region. The substrate region and the floating body region are formed of materials having identical characteristics. The method of manufacturing the semiconductor substrate including forming at least one floating body pattern by etching a bulk substrate, separating the bulk substrate into a substrate region and a floating body region by etching a lower middle portion of the floating body pattern, and filling an insulating material between the floating body region and the substrate region.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-joo Kim, Tae-hee Lee, Dae-kil Cha, Yoon-dong Park
  • Publication number: 20100320515
    Abstract: A high sensitivity image sensor including a pixel, the pixel including a single electron field effect transistor (SEFET), the SEFET including a first conductive type well in a second conductive type substrate, second conductive type source and drain regions in the well and a first conductive type gate region in the well between the source and the drain regions.
    Type: Application
    Filed: April 12, 2010
    Publication date: December 23, 2010
    Inventors: Eric R. Fossum, Dae-Kil Cha, Young-Gu Jin, Yoon-Dong Park, Soo-Jung Hwang
  • Publication number: 20100141821
    Abstract: An image sensor device may include a dual-gated charge storage region within a substrate. The dual-gated charge storage region includes first and second diodes within a common charge generating region. This charge generating region is configured to receive light incident on a surface of the image sensor device. The first and second diodes include respective first conductivity type regions responsive to first and second gate signals, respectively. These first and second gate signals are active during non-overlapping time intervals.
    Type: Application
    Filed: December 8, 2009
    Publication date: June 10, 2010
    Inventors: Eric R. Fossum, Young Gu Jin, Soo Jung Hwang, Dae Kil Cha, Yoon Dong Park, Jung Chak Ahn, Kyoung Sik Moon
  • Publication number: 20100133600
    Abstract: One transistor (1-T) dynamic random access memories (DRAM) having improved sensing margins that are relatively independent of the amount of carriers stored in a body region thereof.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 3, 2010
    Inventors: Won-joo Kim, Sang-moo Choi, Tae-hee Lee, Yoon-dong Park, Dae-kil Cha