Patents by Inventor Eunseok Cho

Eunseok Cho 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: 11972831
    Abstract: A receiver that receives a multi-level signal includes a pre-amplifier circuit, a slicer circuit and a decoder circuit. The pre-amplifier circuit generates a plurality of intermediate data signals based on an input data signal and a plurality of reference voltages. The slicer circuit generates a plurality of decision signals based on the plurality of intermediate data signals and a clock signal. The decoder circuit generates output data based on the plurality of decision signals. The pre-amplifier circuit includes a first circuit and a second circuit. The first circuit generates one of the plurality of intermediate data signals based on the input data signal and one of the plurality of reference voltages, and has a first structure. The second circuit generates another one of the plurality of intermediate data signals based on the input data signal and another one of the plurality of reference voltages, and has a second structure different from the first structure.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 30, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunsub Rie, Eunseok Shin, Youngdon Choi, Changsoo Yoon, Hyunyoon Cho, Junghwan Choi
  • Patent number: 11914416
    Abstract: A transmitter circuit that receives parallel signals and outputs a serial signal in response to the parallel signals may include; a clock generator generating first clock signals having different respective phases, a multiplexer including selection circuits respectively configured to selectively provide at least two of the parallel signals to an output node in response to at least two of the first clock signals, and an output driver generating the serial signal by amplifying a signal at the output node.
    Type: Grant
    Filed: May 5, 2022
    Date of Patent: February 27, 2024
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Junyoung Park, Joohwan Kim, Jindo Byun, Eunseok Shin, Hyunyoon Cho, Youngdon Choi, Junghwan Choi
  • Publication number: 20240030089
    Abstract: A method of manufacturing a semiconductor package is provided and includes: forming a lower redistribution structure, the lower redistribution structure including lower redistribution patterns having lower connection pads; forming an upper redistribution structure on a boundary surface of the lower redistribution structure, the upper redistribution structure including upper redistribution patterns having upper connection pads electrically connected to the lower connection pads; forming openings exposing at least a portion of each of the lower connection pads; disposing an interposer substrate, including the lower redistribution structure and the upper redistribution structure, on a base substrate, the lower connection pads of the interposer substrate electrically connected to wiring patterns of the base substrate through lower connection bumps disposed on the openings; and disposing at least one of semiconductor chips, including connection pads, on the interposer substrate, the connection pads electrically co
    Type: Application
    Filed: September 27, 2023
    Publication date: January 25, 2024
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Eunseok Cho, Minjeong Gu, Joonsung Kim, Jaehoon Choi
  • Patent number: 11798862
    Abstract: A semiconductor package includes a base substrate including a wiring pattern, an interposer substrate including lower and upper redistribution patterns, a semiconductor structure, a heat dissipation structure, a plurality of external connection bumps disposed on a lower surface of the base substrate, a plurality of lower connection bumps disposed between the base substrate and the interposer substrate, and a plurality of upper connection bumps disposed between the interposer substrate and the semiconductor structure.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: October 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eunseok Cho, Minjeong Gu, Joonsung Kim, Jaehoon Choi
  • Publication number: 20220108935
    Abstract: A semiconductor package includes a base substrate including a wiring pattern, an interposer substrate including lower and upper redistribution patterns, a semiconductor structure, a heat dissipation structure, a plurality of external connection bumps disposed on a lower surface of the base substrate, a plurality of lower connection bumps disposed between the base substrate and the interposer substrate, and a plurality of upper connection bumps disposed between the interposer substrate and the semiconductor structure.
    Type: Application
    Filed: June 22, 2021
    Publication date: April 7, 2022
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Eunseok CHO, Minjeong GU, Joonsung KIM, Jaehoon CHOI
  • Patent number: 10658266
    Abstract: A method for managing a temperature of a device includes determining a temperature of a circuit or a package including the circuit, and selectively operating a thermoelectric semiconductor based on the determined temperature to adjust the temperature of the circuit or the package.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Choon Kim, Jichul Kim, Jin-Kwon Bae, Eunseok Cho
  • Patent number: 10198049
    Abstract: A surface temperature management method of mobile device is provided. The method includes sensing a temperature of an application processor in an operation mode of the mobile device; and controlling the application processor using the sensed temperature and a surface temperature management table to manage a surface temperature of a target part of the mobile device. The surface temperature management table includes information related to the temperature of the application processor corresponding to the surface temperature of the target part in the operation mode.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: February 5, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heungkyu Kwon, Jae Choon Kim, Eunseok Cho, Jichul Kim
  • Publication number: 20170229373
    Abstract: A method for managing a temperature of a device includes determining a temperature of a circuit or a package including the circuit, and selectively operating a thermoelectric semiconductor based on the determined temperature to adjust the temperature of the circuit or the package.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 10, 2017
    Inventors: JAE CHOON KIM, JICHUL KIM, Jin-Kwon BAE, EUNSEOK CHO
  • Publication number: 20170185119
    Abstract: A surface temperature management method of mobile device is provided. The method includes sensing a temperature of an application processor in an operation mode of the mobile device; and controlling the application processor using the sensed temperature and a surface temperature management table to manage a surface temperature of a target part of the mobile device. The surface temperature management table includes information related to the temperature of the application processor corresponding to the surface temperature of the target part in the operation mode.
    Type: Application
    Filed: March 15, 2017
    Publication date: June 29, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heungkyu KWON, Jae Choon KIM, Eunseok CHO, Jichul KIM
  • Patent number: 9671141
    Abstract: A device includes a first board having a first area and a second area not overlapping the first area; and a thermoelectric semiconductor disposed between the first board and the second board at the first area of the first board configured to supply a voltage to the thermoelectric semiconductor; a package disposed at the second area of the first board.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: June 6, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Choon Kim, Jichul Kim, Jin-Kwon Bae, Eunseok Cho
  • Patent number: 9606591
    Abstract: A surface temperature management method of mobile device is provided. The method includes sensing a temperature of an application processor in an operation mode of the mobile device; and controlling the application processor using the sensed temperature and a surface temperature management table to manage a surface temperature of a target part of the mobile device. The surface temperature management table includes information related to the temperature of the application processor corresponding to the surface temperature of the target part in the operation mode.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 28, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Heungkyu Kwon, Jae Choon Kim, Eunseok Cho, Jichul Kim
  • Publication number: 20160084542
    Abstract: A device includes a first board having a first area and a second area not overlapping the first area; and a thermoelectric semiconductor disposed between the first board and the second board at the first area of the first board configured to supply a voltage to the thermoelectric semiconductor; a package disposed at the second area of the first board.
    Type: Application
    Filed: December 7, 2015
    Publication date: March 24, 2016
    Inventors: JAE CHOON KIM, JICHUL KIM, Jin-Kwon BAE, EUNSEOK CHO
  • Patent number: 9252031
    Abstract: Provided is a semiconductor package including a lower package, an interposer on the lower package, and an upper package on the interposer. The lower package may include a lower package substrate, a lower semiconductor chip on the lower package substrate, and a lower heat-transfer layer on the lower semiconductor chip. The interposer may include an interposer substrate, first and second heat-transfer openings defined by recessed bottom and top surfaces, respectively, of the interposer substrate, an upper interposer heat-transfer pad disposed in the second heat-transfer opening, and an upper heat-transfer layer disposed on the upper interposer heat-transfer pad. The upper package may include an upper package substrate, an upper package heat-transfer pad, which may be disposed in a third heat-transfer opening defined by a recessed bottom surface of the upper package substrate, and an upper semiconductor chip disposed on the upper package substrate.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: February 2, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hohyeuk Im, Jongkook Kim, Gowoon Seong, SeokWon Lee, Byoungwook Jang, Eunseok Cho
  • Patent number: 9228763
    Abstract: Provided are thermoelectric cooling packages and thermal management methods thereof. The method may include measuring a temperature of the thermoelectric cooling package including a semiconductor chip and a thermoelectric cooler, comparing the temperature of the thermoelectric cooling package with a target temperature, operating the thermoelectric cooler when the temperature of the thermoelectric cooling package is higher than the target temperature, and stopping the operation of the thermoelectric cooler when the temperature of the thermoelectric cooling package becomes lower than the target temperature.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: January 5, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Choon Kim, Jichul Kim, Jin-Kwon Bae, Eunseok Cho
  • Patent number: 9030826
    Abstract: Chip-on-film packages are provided. A chip-on-film package includes a film substrate having a first surface and a second surface opposite to each other, a semiconductor chip on the first surface, and a thermal deformation member adjacent to the second surface. The thermal deformation member has a construction that causes its shape to transform according to a temperature. Related devices and device assembles are also provided.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: May 12, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jichul Kim, Jae Choon Kim, Young-deuk Kim, Eunseok Cho
  • Publication number: 20150084170
    Abstract: Provided is a semiconductor package including a lower package, an interposer on the lower package, and an upper package on the interposer. The lower package may include a lower package substrate, a lower semiconductor chip on the lower package substrate, and a lower heat-transfer layer on the lower semiconductor chip. The interposer may include an interposer substrate, first and second heat-transfer openings defined by recessed bottom and top surfaces, respectively, of the interposer substrate, an upper interposer heat-transfer pad disposed in the second heat-transfer opening, and an upper heat-transfer layer disposed on the upper interposer heat-transfer pad. The upper package may include an upper package substrate, an upper package heat-transfer pad, which may be disposed in a third heat-transfer opening defined by a recessed bottom surface of the upper package substrate, and an upper semiconductor chip disposed on the upper package substrate.
    Type: Application
    Filed: September 23, 2014
    Publication date: March 26, 2015
    Inventors: Hohyeuk IM, JONGKOOK KIM, Gowoon SEONG, SeokWon LEE, BYOUNGWOOK JANG, EUNSEOK CHO
  • Patent number: 8988645
    Abstract: A display device includes a panel including pixels defined by data lines and gate lines, a housing chassis covering a sidewall and an edge of the panel, a printed circuit board under the panel, the printed circuit board including circuit elements configured to generate at least one of a data signal, a gate signal, and a control signal, a chip on film connecting the printed circuit board to the panel, the chip on film between the housing chassis and the sidewall of the panel, a driver integrated circuit mounted on the chip on film and configured to respond to the control signal and drive at least one of the data signal and the gate signal applied to the data lines and the gate lines, and a connection unit attaching the chip on film to the housing chassis and dissipating heat generated by the driver integrated circuit to the housing chassis.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jichul Kim, Young-Deuk Kim, Eunseok Cho, Mi-Na Choi
  • Patent number: 8988115
    Abstract: A method for controlling a temperature of an electronic device which includes a semiconductor chip is provided. The temperature control method includes measuring a temperature of a measurement point using the electronic device, comparing the temperature of the measurement point with a target temperature varying according to a period of time when the semiconductor chip operates using the electronic device, and decreasing a clock frequency of the semiconductor chip using the electronic device when the temperature of the measurement point is higher than the target temperature.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 24, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jaechoon Kim, SangWook Ju, Eunseok Cho
  • Publication number: 20140327129
    Abstract: Provided is a package on package (PoP) device and a method of manufacturing the same. In the PoP device, a thermal interface material layer is interposed between a lower semiconductor chip and an upper package substrate, and a heat sink is disposed on an upper semiconductor package substrate. This maximizes heat release. Accordingly, an operation speed can be improved and malfunction limitation can be solved.
    Type: Application
    Filed: March 27, 2014
    Publication date: November 6, 2014
    Inventors: Eunseok CHO, Heejung HWANG
  • Publication number: 20140184312
    Abstract: An example embodiment relates to a semiconductor device including a semiconductor package in which a semiconductor chip is mounted on the package substrate. The semiconductor package may include a temperature measurement device and a temperature control circuit. The temperature measurement device may measure a temperature of the semiconductor package. The temperature control circuit may change an operation speed of the semiconductor package on the basis of the temperature of the semiconductor package measured by the temperature measurement device.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 3, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Choon KIM, Eunseok CHO, Mi-Na CHOI, Kyoungsei CHOI, Heejung HWANG, Seran BAE