Patents by Inventor Yong-Jun Lee

Yong-Jun 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: 8218379
    Abstract: In one embodiment, the semiconductor device includes a non-volatile memory cell array, a write circuit configured to write to the non-volatile memory cell array, and a control circuit. The control circuit is configured to store at least one erase indicator. The erase indicator is associated with at least a portion of the non-volatile memory cell array and indicates a logic state. The control circuit is configured to control the write circuit to write the logic state indicated by the erase indicator in the non-volatile memory cell array during an erase operation of the associated portion of the non-volatile memory cell array.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: July 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Jun Lee, Kwang-Jin Lee, Taek-Sung Kim, Kwang-Ho Kim, Woo-Yeong Cho, Hyun-Ho Choi, Hye Jin Kim
  • Publication number: 20120138654
    Abstract: The present invention relates to a dispenser for supplying a disposable paper product of a roll type such as a toilet paper, a hand towel and etc. The dispenser comprises a main body casing which accommodates the paper product and has a rotating shaft supporting the paper product to be rotatable and a discharging part for discharging the paper product, and a wet type cutting unit which is located at the discharging part to provide liquid to a part of the paper product that is to be cut. According to the present invention, liquid is provided to an area of the paper product to be cut, so that the paper product can be easily cut with a relatively small force.
    Type: Application
    Filed: July 20, 2010
    Publication date: June 7, 2012
    Inventor: Yong-jun Lee
  • Patent number: 8194492
    Abstract: Disclosed is a semiconductor memory device including a memory cell array having a plurality of variable resistance memory cells divided into first and second areas. An I/O circuit is configured to access the memory cell array under the control of control logic so as to access the first or second area in response to an external command. The I/O circuit accesses the first area using a memory cell unit and the second area using a page unit.
    Type: Grant
    Filed: January 25, 2010
    Date of Patent: June 5, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Qi Wang, Kwang-Jin Lee, Woo-Yeong Cho, Taek-Sung Kim, Kwang-Ho Kim, Hyun-Ho Choi, Yong-Jun Lee, Hye-Jin Kim
  • Patent number: 8102704
    Abstract: Disclosed is a method of preventing coupling noises for a non-volatile semiconductor memory device. According to the method, if an edge of a write operation signal overlaps an activated period of a read operation signal a check result is generated. The write operation signal is modified based on the check result.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: January 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang-Jin Lee, Yong-Jun Lee, Du-Eung Kim, Woo-Yeong Cho, Joon-Yong Choi
  • Patent number: 8101493
    Abstract: A capacitor of a semiconductor device and a method for manufacturing the same includes a lower metal layer on and/or over a semiconductor substrate; an insulating layer formed on and/or over the lower metal layer with step difference; and an upper electrode on and/or over the insulating layer pattern, wherein a top corner of the upper electrode is rounded so that a curvature pattern is formed on the top corner of the upper electrode.
    Type: Grant
    Filed: December 29, 2009
    Date of Patent: January 24, 2012
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Yong-Jun Lee
  • Patent number: 8058129
    Abstract: A lateral double diffused metal oxide semiconductor (LDMOS) device and a method of manufacturing the same. A LDMOS device may include a high voltage well formed over a substrate, a reduced surface field region formed thereover which may be adjacent a body region, and/or an isolation layer. An isolation layer may include a predetermined area formed over a reduced surface field region, may be partially overlapped with a top surface of a substrate and/or may include an area formed adjacent a high voltage well. A low voltage well may be formed over a substrate. A gate electrode may extend from a predetermined top surface of a body region to a predetermined top surface of an isolation layer. A drain region may be formed over a low voltage well. A source region may be formed over a body region and may have at least a portion formed under a gate electrode.
    Type: Grant
    Filed: November 9, 2009
    Date of Patent: November 15, 2011
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Yong-Jun Lee
  • Publication number: 20110222330
    Abstract: A nonvolatile memory device comprises a one-time-programmable (OTP) lock bit register. The nonvolatile memory device comprises a variable-resistance memory cell array comprising an OTP block that store data and a register that stores OTP lock state information indicating whether the data is changeable. The register comprises a variable memory cell. An initial value of the OTP lock state information is set to a program protection state.
    Type: Application
    Filed: February 23, 2011
    Publication date: September 15, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-Jun LEE, Kwang Jin LEE, Joon Min PARK, Huik Won SEO
  • Publication number: 20110179237
    Abstract: One embodiment includes a non-volatile memory cell array, and a read unit configured to disable read operation for the non-volatile memory cell array for a time period following writing of data in the non-volatile memory cell array.
    Type: Application
    Filed: March 28, 2011
    Publication date: July 21, 2011
    Inventors: Kwang Jin Lee, Du Eung Kim, Yong Jun Lee
  • Patent number: 7920432
    Abstract: One embodiment includes a non-volatile memory cell array, and a read unit configured to disable read operation for the non-volatile memory cell array for a time period following writing of data in the non-volatile memory cell array.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: April 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kwang Jin Lee, Du Eung Kim, Yong Jun Lee
  • Patent number: 7875924
    Abstract: An embedded flash memory device and a method for fabricating the same which reduces the size of a memory device using logic CMOS fabricating processes and enhancing a coupling ratio of the memory device. The flash memory device includes a coupling oxide layer on an active area of a semiconductor substrate, a first control gate formed on and/or over the coupling oxide layer and a second control gate formed on and/or over and enclosing lateral sidewalls of the coupling oxide layer and the first control gate.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: January 25, 2011
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Yong-Jun Lee
  • Publication number: 20100329057
    Abstract: In a method of discharging bit-lines for a non-volatile semiconductor memory device performing a read-while-write operation. The method include discharging a global write bit-line to a ground voltage based on a write command within a first period. the method also includes maintaining the discharged voltage of the global write bit-line in the ground voltage during a second period.
    Type: Application
    Filed: April 21, 2010
    Publication date: December 30, 2010
    Inventors: Yong-Jun Lee, Byung-Gil Choi, Du-Eung Kim
  • Publication number: 20100302884
    Abstract: Disclosed is a method of preventing coupling noises for a non-volatile semiconductor memory device. According to the method, if an edge of a write operation signal overlaps an activated period of a read operation signal a check result is generated. The write operation signal is modified based on the check result.
    Type: Application
    Filed: April 7, 2010
    Publication date: December 2, 2010
    Inventors: Kwang-Jin Lee, Yong-Jun Lee, Du-Eung Kim, Woo-Yeong Cho, Joon-Yong Choi
  • Publication number: 20100284221
    Abstract: A nonvolatile memory device includes global selection lines, local selection lines, a first selection circuit, and a second selection circuit. The local lines correspond respectively to the global selection lines. The first selection circuit is configured to connect to the global selection lines to select the global selection lines. The second selection circuit is connected between the global selection lines and the local selection lines and is configured to select the local selection lines. The first selection circuit is configured to select at least one global selection line, and the second selection circuit is configured to select the local selection lines corresponding to the selected global selection line while the at least one global selection line is continuously activated.
    Type: Application
    Filed: March 17, 2010
    Publication date: November 11, 2010
    Inventors: Joon-Yong Choi, Byunggil Choi, Yu Hwan Ro, Yong-Jun Lee
  • Publication number: 20100164065
    Abstract: A capacitor of a semiconductor device and a method for manufacturing the same includes a lower metal layer on and/or over a semiconductor substrate; an insulating layer formed on and/or over the lower metal layer with step difference; and an upper electrode on and/or over the insulating layer pattern, wherein a top corner of the upper electrode is rounded so that a curvature pattern is formed on the top corner of the upper electrode.
    Type: Application
    Filed: December 29, 2009
    Publication date: July 1, 2010
    Inventor: Yong-Jun Lee
  • Publication number: 20100124105
    Abstract: Disclosed is a semiconductor memory device including a memory cell array having a plurality of variable resistance memory cells divided into first and second areas. An I/O circuit is configured to access the memory cell array under the control of control logic so as to access the first or second area in response to an external command. The I/O circuit accesses the first area using a memory cell unit and the second area using a page unit.
    Type: Application
    Filed: January 25, 2010
    Publication date: May 20, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Qi WANG, Kwang-Jin LEE, Woo-Yeong CHO, Taek-Sung KIM, Kwang-Ho KIM, Hyun-Ho CHOI, Yong-Jun LEE, Hye-Jin KIM
  • Publication number: 20100123195
    Abstract: A lateral double diffused metal oxide semiconductor (LDMOS) device and a method of manufacturing the same. A LDMOS device may include a high voltage well formed over a substrate, a reduced surface field region formed thereover which may be adjacent a body region, and/or an isolation layer. An isolation layer may include a predetermined area formed over a reduced surface field region, may be partially overlapped with a top surface of a substrate and/or may include an area formed adjacent a high voltage well. A low voltage well may be formed over a substrate. A gate electrode may extend from a predetermined top surface of a body region to a predetermined top surface of an isolation layer. A drain region may be formed over a low voltage well. A source region may be formed over a body region and may have at least a portion formed under a gate electrode.
    Type: Application
    Filed: November 9, 2009
    Publication date: May 20, 2010
    Inventor: Yong-Jun Lee
  • Publication number: 20100091553
    Abstract: In one embodiment, the semiconductor device includes a non-volatile memory cell array, a write circuit configured to write to the non-volatile memory cell array, and a control circuit. The control circuit is configured to store at least one erase indicator. The erase indicator is associated with at least a portion of the non-volatile memory cell array and indicates a logic state. The control circuit is configured to control the write circuit to write the logic state indicated by the erase indicator in the non-volatile memory cell array during an erase operation of the associated portion of the non-volatile memory cell array.
    Type: Application
    Filed: December 23, 2009
    Publication date: April 15, 2010
    Inventors: Yong-Jun Lee, Kwangjin Lee, Taek-Sung Kim, Kwangho Kim, Wooyeong Cho, Hyunho Choi, Hye-Jin Kim, Qi Wang
  • Publication number: 20100006937
    Abstract: A method for manufacturing a lateral double diffused metal oxide semiconductor (LDMOS) device includes forming an oxide layer on a semiconductor substrate, forming first and second trenches by partially etching the oxide layer and the semiconductor substrate, forming a small trench overlapping with the second trench so that the second trench has a stepped structure, and depositing one or more dielectric layers so that the first trench forms a device isolation layer defining a semiconductor device region and the second trench having a stepped structure forms a drain extension device isolation layer. The breakdown voltage of the LDMOS device may be improved while reducing the on-resistance, thereby improving the operational reliability of the device.
    Type: Application
    Filed: June 29, 2009
    Publication date: January 14, 2010
    Inventor: Yong Jun Lee
  • Patent number: 7608505
    Abstract: A method of manufacturing a non-volatile memory device includes the steps of: defining an active region on a semiconductor substrate; forming a charge storage layer on the active region; forming a first conductive pattern on the charge storage layer, wherein the first conductive pattern has a bottom portion larger in width than a top portion thereof, the first conductive pattern further having a sloping sidewall connecting the top and bottom portions; forming an oxide layer on the sidewall of the first conductive pattern; forming a conformal second conductive layer on the first conductive pattern and on the active region around the first conductive pattern; and patterning the first conductive pattern and the second conductive layer to form a pair of first electrodes and a pair of second electrodes, respectively.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: October 27, 2009
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Yong Jun Lee
  • Publication number: 20090257292
    Abstract: One embodiment includes a non-volatile memory cell array, and a read unit configured to disable read operation for the non-volatile memory cell array for a time period following writing of data in the non-volatile memory cell array.
    Type: Application
    Filed: November 28, 2008
    Publication date: October 15, 2009
    Inventors: Kwang Jin Lee, Du Eung Kim, Yong Jun Lee