Patents by Inventor Sang-hyun Woo

Sang-hyun Woo 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: 9614035
    Abstract: A semiconductor device includes a fin protruding from a substrate and extending in a first direction, first and second gate structures intersecting the fin, a recess formed in the fin between the first and second gate structures, a device isolation layer which fills the recess, and which has an upper surface protruded outwardly from the fin and disposed to be coplanar with upper surfaces of the first and second gate structures, a liner formed along a side walls of the device isolation layer protruded outwardly from the fin and a source/drain region disposed at both sides of the recess and spaced apart from the device isolation layer.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: April 4, 2017
    Assignee: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: Ju-Youn Kim, Min-Choul Kim, Baik-Min Sung, Sang-Hyun Woo
  • Publication number: 20160380052
    Abstract: A semiconductor device includes a fin protruding from a substrate and extending in a first direction, first and second gate structures intersecting the fin, a recess formed in the fin between the first and second gate structures, a device isolation layer which fills the recess, and which has an upper surface protruded outwardly from the fin and disposed to be coplanar with upper surfaces of the first and second gate structures, a liner formed along a side walls of the device isolation layer protruded outwardly from the fin and a source/drain region disposed at both sides of the recess and spaced apart from the device isolation layer.
    Type: Application
    Filed: February 4, 2016
    Publication date: December 29, 2016
    Inventors: JU-YOUN KIM, Min-Choul Kim, Baik-Min Sung, Sang-Hyun Woo
  • Patent number: 9496192
    Abstract: A test pattern of a semiconductor device is provided, which includes first and second fins formed to project from a substrate and arranged to be spaced apart from each other, first and second gate structures formed to cross the first and second fins, respectively, a first source region and a first drain region arranged on the first fin on one side and the other side of the first gate structure, a second source region and a second drain region arranged on the second fin on one side and the other side of the second gate structure, a first conductive pattern connected to the first and second drain regions to apply a first voltage to the first and second drain regions and a second conductive pattern connecting the first source region and the second gate structure to each other.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: November 15, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dae-Lim Kang, Min-Ho Kwon, Wei-Hua Hsu, Sang-Hyun Woo, Hwa-Sung Rhee, Jun-Suk Choi
  • Patent number: 9467104
    Abstract: A device includes at least one first amplifier circuit configurable to receive and amplify an input radio frequency (RF) signal having a first carrier at a first input signal level and provide a first amplified RF signal, and at least one second amplifier circuit configurable to receive and amplify the input RF signal having a second carrier at a second input signal level and provide a second amplified RF signal, the at least one first amplifier circuit having a first input impedance, the at least one second amplifier circuit having a second input impedance.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: October 11, 2016
    Assignee: Qualcomm Incorporated
    Inventors: Rui Xu, Allen He, Wingching Vincent Leung, Ahmed Abdel Monem Youssef, Ehab Ahmed Sobhy Abdel Ghany, Sang Hyun Woo, Li-Chung Chang
  • Patent number: 9425746
    Abstract: A device includes an amplifier circuit comprising a plurality of amplification paths, and at least one switchable bypass capacitance coupled to an associated shared power distribution network, the at least one switchable bypass capacitance and at least one of the plurality of amplification paths responsive to a control signal configured to selectively ground the at least one switchable bypass capacitance and selectively enable the at least one of the amplification paths based on a selected operating mode.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: August 23, 2016
    Assignee: Qualcomm Incorporated
    Inventors: Mehmet Uzunkol, Rui Xu, Ahmed Abdel Monem Youssef, Wingching Vincent Leung, Ehab Ahmed Sobhy Abdel Ghany, Allen He, Sang Hyun Woo, Li-Chung Chang
  • Patent number: 9425832
    Abstract: A device includes a first amplifier circuit coupled to a first transformer and a second transformer, the first transformer selectively coupled to a first shared power distribution network through a first switch, the second transformer selectively coupled to a second shared power distribution network through a second switch.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: August 23, 2016
    Assignee: Qualcomm Incorporated
    Inventors: Ahmed Abdel Monem Youssef, Mehmet Uzunkol, Rui Xu, Ehab Ahmed Sobhy Abdel Ghany, Wingching Vincent Leung, Sang Hyun Woo, Allen He, Li-Chung Chang
  • Publication number: 20150351131
    Abstract: An apparatus includes a first amplifier circuit and a second amplifier circuit. The first amplifier circuit has a first output coupled to a first load circuit in a multi-output mode, and the second amplifier circuit has a second output coupled to a second load circuit in the multi-output mode. The apparatus further includes a first divert circuit and a second divert circuit. The first divert circuit is configured to divert a first portion of a first amplified signal from the first amplifier circuit to the second load circuit in the multi-output mode. The second divert circuit is configured to divert a first portion of a second amplified signal from the second amplifier circuit to the first load circuit in the multi-output mode.
    Type: Application
    Filed: March 10, 2015
    Publication date: December 3, 2015
    Inventors: Sang Hyun Woo, Wingching Vincent Leung, Li-Chung Chang
  • Publication number: 20150280651
    Abstract: A device includes an amplifier circuit comprising a plurality of amplification paths, and at least one switchable bypass capacitance coupled to an associated shared power distribution network, the at least one switchable bypass capacitance and at least one of the plurality of amplification paths responsive to a control signal configured to selectively ground the at least one switchable bypass capacitance and selectively enable the at least one of the amplification paths based on a selected operating mode.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 1, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Mehmet Uzunkol, Rui Xu, Ahmed Abdel Monem Youssef, Wingching Vincent Leung, Ehab Ahmed Sobhy Abdel Ghany, Allen He, Sang Hyun Woo, Li-Chung Chang
  • Publication number: 20150280661
    Abstract: A device includes at least one first amplifier circuit configurable to receive and amplify an input radio frequency (RF) signal having a first carrier at a first input signal level and provide a first amplified RF signal, and at least one second amplifier circuit configurable to receive and amplify the input RF signal having a second carrier at a second input signal level and provide a second amplified RF signal, the at least one first amplifier circuit having a first input impedance, the at least one second amplifier circuit having a second input impedance.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 1, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Rui Xu, Allen He, Wingching Vincent Leung, Ahmed Abdel Monem Youssef, Ehab Ahmed Sobhy Abdel Ghany, Sang Hyun Woo, Li-Chung Chang
  • Patent number: 9130529
    Abstract: A device includes a first and a second low noise amplifier (LNA), a first degenerative inductance coupled between the first LNA and ground by a first ground connection, and a second degenerative inductance coupled between the second LNA and ground by a second ground connection, the first and second degenerative inductances configured to establish negative inductive coupling between the first and second degenerative inductances.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: September 8, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Ehab Ahmed Sobhy Abdel Ghany, Sang Hyun Woo, Wingching Vincent Leung, Zhang Jin, Li-Chung Chang
  • Publication number: 20150207482
    Abstract: A device includes a first and a second low noise amplifier (LNA), a first degenerative inductance coupled between the first LNA and ground by a first ground connection, and a second degenerative inductance coupled between the second LNA and ground by a second ground connection, the first and second degenerative inductances configured to establish negative inductive coupling between the first and second degenerative inductances.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 23, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ehab Ahmed Sobhy Abdel Ghany, Sang Hyun Woo, Wingching Vincent Leung, Zhang Jin, Li-Chung Chang
  • Publication number: 20150200690
    Abstract: A device includes a first amplifier circuit coupled to a first transformer and a second transformer, the first transformer selectively coupled to a first shared power distribution network through a first switch, the second transformer selectively coupled to a second shared power distribution network through a second switch.
    Type: Application
    Filed: April 18, 2014
    Publication date: July 16, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Ahmed Abdel Monem Youssef, Mehmet Uzunkol, Rui Xu, Ehab Ahmed Sobhy Abdel Ghany, Wingching Vincent Leung, Sang Hyun Woo, Allen He, Li-Chung Chang
  • Publication number: 20150162331
    Abstract: A test pattern of a semiconductor device is provided, which includes first and second fins formed to project from a substrate and arranged to be spaced apart from each other, first and second gate structures formed to cross the first and second fins, respectively, a first source region and a first drain region arranged on the first fin on one side and the other side of the first gate structure, a second source region and a second drain region arranged on the second fin on one side and the other side of the second gate structure, a first conductive pattern connected to the first and second drain regions to apply a first voltage to the first and second drain regions and a second conductive pattern connecting the first source region and the second gate structure to each other.
    Type: Application
    Filed: July 9, 2014
    Publication date: June 11, 2015
    Inventors: Dae-Lim KANG, Min-Ho KWON, Wei-Hua HSU, Sang-Hyun WOO, Hwa-Sung RHEE, Jun-Suk CHOI
  • Patent number: 8903343
    Abstract: Amplifiers with multiple outputs and separate gain control per output are disclosed. In an exemplary design, an apparatus (e.g., a wireless device or an integrated circuit) may include first and second amplifier circuits. The first amplifier circuit may receive and amplify an input radio frequency (RF) signal based on a first variable gain and provide a first amplified RF signal. The second amplifier circuit may receive and amplify the input RF signal based on a second variable gain and provide a second amplified RF signal. The input RF signal may include a plurality of transmitted signals being received by the wireless device. The first variable gain may be adjustable independently of the second variable gain. Each variable gain may be set based on the received power level of at least one transmitted signal being received by the wireless device.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: December 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Christian Holenstein, Aleksandar Miodrag Tasic, Li-Chung Chang, Allen He, Rui Xu, Ehab Ahmed Sobhy Abdel Ghany, Wingching Vincent Leung, Ahmed Abdel Monem Youssef, Sang Hyun Woo
  • Patent number: 8207470
    Abstract: Provided is an apparatus for generating remote plasma, which can improve thin-film quality by preventing an arc at a bias electrode. The apparatus includes a radio frequency (RF) electrode installed inside an upper portion of a chamber, a bias electrode installed apart from the RF electrode, and including a plurality of through holes through which plasma passes, wherein a bias power is supplied to the bias electrode, a plasma generating unit formed between the RF electrode and the bias electrode, wherein a plasma gas is supplied to the plasma generating unit, and a ground electrode installed under and spaced apart from the bias electrode, and including plasma through holes corresponding to the through holes of the bias electrode, wherein a pulsed DC bias of a second voltage level, which has a first voltage level periodically, is applied to the bias electrode.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: June 26, 2012
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Hyeong-Tag Jeon, Sang-Hyun Woo, Hyung-Chul Kim, Chin-Wook Chung
  • Patent number: 7953030
    Abstract: A method and apparatus controls power consumption of stations having a hierarchical structure when the stations transmit and receive a wireless signal to and from one another on a CSMA/CA wireless LAN. The controlling involves extracting information on frame transmission speed and transmission period information on first and second layers of the hierarchical structure from the wireless signal; determining a power-controlled period for each of the first and second layers based on the extracted information; and reducing the power consumption of the first and second layers by switching a current mode of the first and second layers to a predetermined mode for the power-controlled period if a reception address included in the extracted information is not identical to an address of the station.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-woo Seo, Jin-youn Cho, Kyung-hun Jang, Jin-bong Chang, Hyo-sun Hwang, Sang-hyun Woo
  • Patent number: 7782928
    Abstract: Disclosed is a method and an apparatus for self-calibrating direct current (DC) offset and imbalance between orthogonal signals, which may occur in a mobile transceiver. In the apparatus, a transmitter of a mobile terminal functions as a signal generator, and a receiver of the mobile terminal functions as a response characteristic detector. Further, a baseband processor applies test signals to the transmitter, receives the test signals returning from the receiver, and compensates the imbalance and DC offset for the transmitter side and the receiver side by using the test signals.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: August 24, 2010
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Hyun-Il Kang, Chang-Seok Lee, Jae-Kon Lee, Jong-Ae Park, Jae-Sup Lee, Tae-Wook Kim, Sang-Hyun Woo
  • Publication number: 20100096367
    Abstract: Provided is an apparatus for generating remote plasma, which can improve thin-film quality by preventing an arc at a bias electrode. The apparatus includes a radio frequency (RF) electrode installed inside an upper portion of a chamber, a bias electrode installed apart from the RF electrode, and including a plurality of through holes through which plasma passes, wherein a bias power is supplied to the bias electrode, a plasma generating unit formed between the RF electrode and the bias electrode, wherein a plasma gas is supplied to the plasma generating unit, and a ground electrode installed under and spaced apart from the bias electrode, and including plasma through holes corresponding to the through holes of the bias electrode, wherein a pulsed DC bias of a second voltage level, which has a first voltage level periodically, is applied to the bias electrode.
    Type: Application
    Filed: August 25, 2009
    Publication date: April 22, 2010
    Applicant: Industry-University Cooperation Foundation Hanyang University
    Inventors: Hyeong-Tag JEON, Sang-Hyun Woo, Hyung-Chul Kim, Chin-Wook Chung
  • Patent number: 7454185
    Abstract: An apparatus for generating an in-phase/quadrature-phase (I/Q) signal in a wireless transceiver is disclosed, including a local oscillator for generating an oscillation signal, and first and second mixers for mixing an oscillation signal with a transmission/reception signal to convert the transmission/reception signal into a baseband or high-frequency signal. The apparatus includes a phase locked circuit for controlling the local oscillator, and a polyphase filter installed between the local oscillator and the mixers, for separating the oscillation signal from the local oscillator into an I signal and a Q signal depending on a control signal from the phase locked circuit, and outputting the separated I and Q signals to the first and second mixers, respectively.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: November 18, 2008
    Assignees: Samsung Electronics Co., Ltd., Georgia Tech Research Corporation
    Inventors: Yun-Seo Park, Sang-Hyun Woo, Hwan-Seok Song, Seong-Soo Lee, Chang-Ho Lee, Joy Laskar
  • Patent number: 7449934
    Abstract: Provided is a mixer for use in a direct conversion receiver. The mixer includes Field Effect Transistors (FETs), a current source (IBias), two load resistors (RLoad), another FET, and two inductors L1 and L2. The FET M21 constitutes a current bleeding circuitry and the other components except for the two inductors L1 and L2 constitute a so-called Gilbert cell mixer.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: November 11, 2008
    Assignees: Samsung Electronics Co., Ltd., Georgia Tech Research Corporation
    Inventors: Sang-Hyun Woo, Jin-Sung Park, Chang-Ho Lee, Joy Laskar