Patents by Inventor Dong-Uk Choi

Dong-Uk Choi 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).

  • Publication number: 20110170356
    Abstract: Methods of programming data in a non-volatile memory cell are provided. A memory cell according to some embodiments may include a gate structure that includes a tunnel oxide layer pattern, a floating gate, a dielectric layer and a control gate sequentially stacked on a substrate, impurity regions that are formed in the substrate at both sides of the gate structure, and a conductive layer pattern that is arranged spaced apart from and facing the floating gate. Embodiments of such methods may include applying a programming voltage to the control gate, grounding the impurity regions and applying a fringe voltage to the conductive layer pattern to generate a fringe field in the floating gate.
    Type: Application
    Filed: March 25, 2011
    Publication date: July 14, 2011
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Patent number: 7978522
    Abstract: A non-volatile memory device includes a selection transistor coupled to a bit line. The device also includes a plurality of memory cells serially coupled to the selection transistor and at least one dummy cell located between the plurality of memory cells. The dummy cell is turned off during a programming operation of a memory cell located between the dummy cell and the selection transistor.
    Type: Grant
    Filed: April 1, 2009
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Dong-Uk Choi, Choong-Ho Lee, Sang-Gu Kang
  • Patent number: 7972883
    Abstract: In a method of manufacturing a photoelectric device, a transparent conductive layer is formed on a substrate, and the transparent conductive layer is partially etched using an etching solution including hydrofluoric acid. Thus, a transparent electrode having a concavo-convex pattern on its surface is formed. When the transparent conductive layer is partially etched, a haze of the transparent electrode may be controlled by adjusting an etching time of the transparent conductive layer. Also, since the etching solution is sprayed to the transparent conductive layer to etch the transparent conductive layer, the concavo-convex pattern on the surface of the transparent electrode may be easily formed even though the size of the substrate increases.
    Type: Grant
    Filed: March 9, 2009
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-Jae Jung, Byoung-June Kim, Jin-Seock Kim, Czang-Ho Lee, Myung-Hun Shin, Joon-Young Seo, Dong-Uk Choi, Byoung-Kyu Lee
  • Patent number: 7936600
    Abstract: Methods of programming data in a non-volatile memory cell are provided. A memory cell according to some embodiments may include a gate structure that includes a tunnel oxide layer pattern, a floating gate, a dielectric layer and a control gate sequentially stacked on a substrate, impurity regions that are formed in the substrate at both sides of the gate structure, and a conductive layer pattern that is arranged spaced apart from and facing the floating gate. Embodiments of such methods may include applying a programming voltage to the control gate, grounding the impurity regions and applying a fringe voltage to the conductive layer pattern to generate a fringe field in the floating gate.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: May 3, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Publication number: 20110095377
    Abstract: In some embodiments, a semiconductor memory device includes a substrate that includes a cell array region and a peripheral circuit region. The semiconductor memory device further includes a device isolation pattern on the substrate. The device isolation pattern defines a first active region and a second active region within the cell array region and a third active region in the peripheral circuit region. The semiconductor memory device further includes a first common source region, a plurality of first source/drain regions, and a first drain region in the first active region. The semiconductor memory device further includes a second common source region, a plurality of second source/drain regions, and a second drain region in the second active region. The semiconductor memory device further includes a third source/drain region in the third active region. The semiconductor memory device further includes a common source line contacting the first and second common source regions.
    Type: Application
    Filed: January 5, 2011
    Publication date: April 28, 2011
    Inventors: Jong-Sun Sel, Jung-Dal Choi, Choong-Ho Lee, Ju-Hyuck Chung, Hee-Soo Kang, Dong-uk Choi
  • Patent number: 7911847
    Abstract: A method of programming data in a NAND flash memory device including at least one even bitline and at least one odd bitline, the method including programming N-bit data into first cells coupled to the at least one even bitline or the at least one odd bitline and programming M-bit data into second cells coupled to the other of the at least one even bitline and the at least one odd bitline, where N is a natural number greater than one and M is a natural number greater than N.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: March 22, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Patent number: 7884425
    Abstract: In one embodiment, a semiconductor memory device includes a substrate having first and second active regions. The first active region includes a first source and drain regions and the second active region includes a second source and drain regions. A first interlayer dielectric is located over the substrate. A first conductive structure extends through the first interlayer dielectric. A first bit line is on the first interlayer dielectric. A second interlayer dielectric is on the first interlayer dielectric. A contact hole extends through the second and first interlayer dielectrics. The device includes a second conductive structure within the contact hole and extending through the first and second interlayer dielectrics. A second bit line is on the second interlayer dielectric. A width of the contact hole at a bottom of the second interlayer dielectric is less than or substantially equal to a width at a top of the second interlayer dielectric.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: February 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Sun Sel, Jung-Dal Choi, Choong-Ho Lee, Ju-Hyuck Chung, Hee-Soo Kang, Dong-uk Choi
  • Publication number: 20110029206
    Abstract: A swing control system and method for a construction machine using an electric motor is provided. The swing control system includes a swing electric motor swinging an upper swing structure and a swing control unit.
    Type: Application
    Filed: June 17, 2010
    Publication date: February 3, 2011
    Inventors: Jong Min KANG, Ahn Kyun Jung, Chun Seung Lee, Ji Yun Kim, Dong Uk Choi, Jung Sun Jo, Sung Kon Kim, Bong Soo Yoo
  • Patent number: 7867849
    Abstract: Example embodiments relate to methods of fabricating a non-volatile memory device. According to example embodiments, a method of fabricating a non-volatile memory device may include forming at least one gate structure on an upper face of a substrate. The at least one gate structure may include a tunnel insulation layer pattern, a charge storing layer pattern, a dielectric layer pattern and a control gate. According to example embodiments, a method of fabricating a non-volatile memory device may also include forming a silicon nitride layer on the upper face of the substrate to cover the at least one gate structure, forming an insulating interlayer on the silicon nitride layer on the upper face of the substrate, and providing an annealing gas toward the upper face of the substrate and a lower face of the substrate to cure defects of the tunnel insulation layer pattern.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Choong-Ho Lee, Jai-Hyuk Song, Dong-Uk Choi, Suk-Kang Sung
  • Publication number: 20100154869
    Abstract: Disclosed herein is a photoelectric conversion device having a semiconductor substrate including a front side and back side, a protective layer formed on the front side of the semiconductor substrate, a first non-single crystalline semiconductor layer formed on the back side of the semiconductor substrate, a first conductive layer including a first impurity formed on a first portion of a back side of the first non-single crystalline semiconductor layer, and a second conductive layer including the first impurity and a second impurity formed on a second portion of the back side of the first non-single crystalline semiconductor layer.
    Type: Application
    Filed: June 2, 2009
    Publication date: June 24, 2010
    Inventors: Min-Seok Oh, Jung-Tae Kim, Nam-Kyu Song, Min Park, Yun-Seok Lee, Czang-Ho Lee, Myung-Hun Shin, Byoung-Kyu Lee, Yuk-Hyun Nam, Seung-Jae Jung, Mi-Hwa Lim, Joon-Young Seo, Dong-Uk Choi, Dong-Seop Kim, Byoung-June Kim
  • Publication number: 20100128522
    Abstract: A flash memory device includes a bulk region, first through nth memory cell transistors arranged in a row on the bulk region, first through nth word lines respectively connected to gates of the first through nth memory cell transistors, a first dummy cell transistor connected to the first memory cell transistor, a first dummy word line connected to a gate of the first dummy cell transistor, a first selection transistor connected to the first dummy cell transistor, a first selection line connected to a gate of the first selection transistor, and a voltage control unit connected to the first selection line, the voltage control unit being adapted to output to the first selection line a voltage lower than a voltage applied to the bulk region, in an erasing mode for erasing the first through nth memory cell transistors.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 27, 2010
    Inventors: Dong-uk Choi, Jung-dal Choi, Choong-ho Lee, Sung-hoi Hur, Min-tai Yu
  • Publication number: 20100035398
    Abstract: A field effect transistor (FET) and a method for manufacturing the same, in which the FET may include an isolation film formed on a semiconductor substrate to define an active region, and a gate electrode formed on a given portion of the semiconductor substrate. A channel layer may be formed on a portion of the gate electrode, with source and drain regions formed on either side of the channel layer so that boundaries between the channel layer and the source and drain regions of the FET may be perpendicular to a surface of the semiconductor substrate.
    Type: Application
    Filed: October 7, 2009
    Publication date: February 11, 2010
    Inventors: Chang-Woo Oh, Dong-Gun Park, Dong-Won Kim, Dong-Uk Choi, Kyoung-Hwan Yeo
  • Publication number: 20090309154
    Abstract: Provided are a selection transistor and a method of fabricating the same. A selection transistor can be formed on an active region in a semiconductor substrate to include a gate electrode that includes recessed portions of a sidewall of the gate electrode which are recessed inward adjacent lower portions of the gate electrode to define a T-shaped cross section of the gate electrode. A tunnel insulating layer can be located between the gate electrode and the active region.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 17, 2009
    Inventors: Byung-kyu Cho, Hee-soo Kang, Dong-uk Choi, Choong-ho Lee
  • Publication number: 20090229596
    Abstract: A method of electrically eliminating defective solar cell units that are disposed within an integrated solar cells module and a method of trimming an output voltage of the integrated solar cells module are provided, where the solar cells module has a large number (e.g., 50 or more) of solar cell units integrally disposed therein and initially connected in series one to the next. The method includes providing a corresponding plurality of repair pads, each integrally extending from a respective electrode layer of the solar cell units, and providing a bypass conductor integrated within the module and extending adjacent to the repair pads. Pad-to-pad spacings and pad-to-bypass spacings are such that pad-to-pad connecting bridges may be selectively created between adjacent ones of the repair pads and such that pad-to-bypass connecting bridges may be selectively created between the repair pads and the adjacently extending bypass conductor.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 17, 2009
    Inventors: Myung-Hun Shin, Dong-Uk Choi, Byoung-June Kim, Jin-Seock Kim, Czang-Ho Lee, Seung-Jae Jung, Joon-Young Seo
  • Publication number: 20090233399
    Abstract: In a method of manufacturing a photoelectric device, a transparent conductive layer is formed on a substrate, and the transparent conductive layer is partially etched using an etching solution including hydrofluoric acid. Thus, a transparent electrode having a concavo-convex pattern on its surface is formed. When the transparent conductive layer is partially etched, a haze of the transparent electrode may be controlled by adjusting an etching time of the transparent conductive layer. Also, since the etching solution is sprayed to the transparent conductive layer to etch the transparent conductive layer, the concavo-convex pattern on the surface of the transparent electrode may be easily formed even though the size of the substrate increases.
    Type: Application
    Filed: March 9, 2009
    Publication date: September 17, 2009
    Inventors: Seung-Jae Jung, Byoung-June Kim, Jin-Seock Kim, Czang-Ho Lee, Myung-Hun Shin, Joon-Young Seo, Dong-Uk Choi, Byoung-Kyu Lee
  • Publication number: 20090221138
    Abstract: A method of manufacturing a semiconductor device, including forming a plurality of gate structures on a substrate, the gate structures each including a hard mask pattern stacked on a gate conductive pattern, forming an insulating layer pattern between the gate structures at least partially exposing a top surface of the hard mask pattern, forming a trench that exposes at least a top surface of the gate conductive pattern by selectively removing the hard mask pattern, and forming a silicide layer on the exposed gate conductive pattern.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 3, 2009
    Inventors: Hee-Soo KANG, Byung-Kyu CHO, Choong-Ho LEE, Dong-Uk CHOI
  • Publication number: 20090190398
    Abstract: A method of programming data in a NAND flash memory device including at least one even bitline and at least one odd bitline, the method including programming N-bit data into first cells coupled to the at least one even bitline or the at least one odd bitline and programming M-bit data into second cells coupled to the other of the at least one even bitline and the at least one odd bitline, where N is a natural number greater than one and M is a natural number greater than N.
    Type: Application
    Filed: November 5, 2008
    Publication date: July 30, 2009
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Publication number: 20090180317
    Abstract: A non-volatile memory device includes a selection transistor coupled to a bit line. The device also includes a plurality of memory cells serially coupled to the selection transistor and at least one dummy cell located between the plurality of memory cells. The dummy cell is turned off during a programming operation of a memory cell located between the dummy cell and the selection transistor.
    Type: Application
    Filed: April 1, 2009
    Publication date: July 16, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Soo Kang, Dong-Uk Choi, Choong-Ho Lee, Sang-Gu Kang
  • Publication number: 20090166714
    Abstract: A non-volatile memory device includes field insulating layer patterns on a substrate to define an active region of the substrate, upper portions of the field insulating layer patterns protruding above an upper surface of the substrate, a tunnel insulating layer on the active region, a charge trapping layer on the tunnel insulating layer, a blocking layer on the charge trapping layer, first insulating layers on upper surfaces of the field insulating layer patterns, and a word line structure on the blocking layer and first insulating layers.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 2, 2009
    Inventors: Suk-Kang Sung, Choong-Ho Lee, Dong-Uk Choi, Hee-Soo Kang
  • Publication number: 20090127633
    Abstract: In one embodiment, a semiconductor memory device includes a substrate having first and second active regions. The first active region includes a first source and drain regions and the second active region includes a second source and drain regions. A first interlayer dielectric is located over the substrate. A first conductive structure extends through the first interlayer dielectric. A first bit line is on the first interlayer dielectric. A second interlayer dielectric is on the first interlayer dielectric. A contact hole extends through the second and first interlayer dielectrics. The device includes a second conductive structure within the contact hole and extending through the first and second interlayer dielectrics. A second bit line is on the second interlayer dielectric. A width of the contact hole at a bottom of the second interlayer dielectric is less than or substantially equal to a width at a top of the second interlayer dielectric.
    Type: Application
    Filed: October 24, 2008
    Publication date: May 21, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Sun SEL, Jung-Dal CHOI, Choong-Ho LEE, Ju-Hyuck CHUNG, Hee-Soo KANG, Dong-uk CHOI