Patents by Inventor Maeng Youl Lee

Maeng Youl 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).

  • Publication number: 20230223715
    Abstract: Proposed is a connector for high-speed signal transmission with a rigid alignment function. The connector allows rigid alignment between pin arrays as a part of the connector moves slightly in the left-right or front-rear direction depending on the degree of engagement between corresponding pins when coupled to a counterpart connector.
    Type: Application
    Filed: October 26, 2022
    Publication date: July 13, 2023
    Applicant: WITHWAVE
    Inventors: Sung Jin KIM, Jeong Il JEON, Maeng Youl LEE, Yong Goo LEE, Jeong Nam CHEON, Young Kun KWON, Bum Hee BAE, Youn Ho KIM, Jong Wan SHIM, Seong Soo HAN
  • Patent number: 9971010
    Abstract: Disclosed is a calibration apparatus for a network analyzer, including a communication portion configured to communicate with the network analyzer to input or output data necessary for calibration, a signal input portion configured to receive a signal notifying a start of the calibration input, at least one radio frequency (RF) port for being connected to the network analyzer, at least one adaptor configured to connect the RF port with the network analyzer, an impedance circuit portion connected to the RF port and configured to include at least one standard impedance, and a controller portion configured to generate calibration data using adaptor characteristic data corresponding to electrical characteristic of the adaptor, measurement data obtained by connecting each of such standard impedances with the network analyzer, and standard impedance characteristic data corresponding to the standard impedance.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: May 15, 2018
    Assignee: WITHWAVE CO., LTD.
    Inventors: Yong Goo Lee, Maeng Youl Lee, Jeong Il Jeon
  • Publication number: 20170234959
    Abstract: Disclosed is a calibration apparatus for a network analyzer, including a communication portion configured to communicate with the network analyzer to input or output data necessary for calibration, a signal input portion configured to receive a signal notifying a start of the calibration input, at least one radio frequency (RF) port for being connected to the network analyzer, at least one adaptor configured to connect the RF port with the network analyzer, an impedance circuit portion connected to the RF port and configured to include at least one standard impedance, and a controller portion configured to generate calibration data using adaptor characteristic data corresponding to electrical characteristic of the adaptor, measurement data obtained by connecting each of such standard impedances with the network analyzer, and standard impedance characteristic data corresponding to the standard impedance.
    Type: Application
    Filed: February 10, 2017
    Publication date: August 17, 2017
    Applicant: WITHWAVE CO., LTD.
    Inventors: Yong Goo LEE, Maeng Youl LEE, Jeong Il JEON
  • Patent number: 8547127
    Abstract: There is provided a probe block comprising a probe including first contact portions, second contact portions, and beams connecting the first contact portion to the second contact portion and a guide where the probe is inserted and supported, wherein the probe block is installed in a probe card for inspecting a semiconductor chip.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: October 1, 2013
    Assignee: Gigalane Co. Ltd
    Inventors: Yong Goo Lee, Maeng Youl Lee
  • Patent number: 8253429
    Abstract: A probe card of a semiconductor test apparatus having a plurality of space transformers supporting probe units of the probe card is provided. A probe card of the present invention includes a plurality of probe units, each comprising a guide member and at least one probe secured by the guide member and contacting a chip pad to be tested; a plurality of space transformers arranged below the respective probe units, each space transformer having wires electrically connected to lower terminals of the probes; a frame having a plurality of guide holes for fixedly positioning the respective probe units; an interposer array arranged below the space transformers for supporting the space transformers, interposer array comprising electrical connection means for supplying test signals to the wires of the space transformers; and a printed circuit board arranged below the interposer array for supporting the interposer array and electrically connected to the electrical connection means for supplying the test signals.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: August 28, 2012
    Assignee: Gigalane Co., Ltd.
    Inventors: Yong Goo Lee, Maeng Youl Lee
  • Patent number: 8222913
    Abstract: A probe block mounted on a probe card is provided for achieving fine pitch probes. A probe block for a probe card of a semiconductor test device according to the present invention includes a guide member and a probe. A guide member includes pairs of upper and lower holes and middle holes each interconnecting the upper and lower holes of each pair. A probe includes a first pin tip protruded through a corresponding upper hole for contacting a pad of a device to be tested and a second pin tip protruded through a corresponding lower hole for transferring an electrical signal to the device and a bridge part situated within the middle hole for interconnecting the first and second pin tips. The upper, lower, and middle holes allow the probe to elastically moves in vertical direction. The probe block of the present invention is advantageous in that the probes are supported by guide members so as not to be bent while maintaining a fine pitch.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: July 17, 2012
    Assignee: Gigalane Co., Ltd.
    Inventors: Yong Goo Lee, Maeng Youl Lee
  • Publication number: 20120074979
    Abstract: There is provided a probe block comprising a probe including first contact portions, second contact portions, and beams connecting the first contact portion to the second contact portion and a guide where the probe is inserted and supported, wherein the probe block is installed in a probe card for inspecting a semiconductor chip.
    Type: Application
    Filed: February 22, 2010
    Publication date: March 29, 2012
    Inventors: Yong Goo Lee, Maeng Youl Lee
  • Publication number: 20110121851
    Abstract: A probe card of a semiconductor test apparatus having a plurality of space transformers supporting probe units of the probe card is provided. A probe card of the present invention includes a plurality of probe units, each comprising a guide member and at least one probe secured by the guide member and contacting a chip pad to be tested; a plurality of space transformers arranged below the respective probe units, each space transformer having wires electrically connected to lower terminals of the probes; a frame having a plurality of guide holes for fixedly positioning the respective probe units; an interposer array arranged below the space transformers for supporting the space transformers, interposer array comprising electrical connection means for supplying test signals to the wires of the space transformers; and a printed circuit board arranged below the interposer array for supporting the interposer array and electrically connected to the electrical connection means for supplying the test signals.
    Type: Application
    Filed: January 8, 2008
    Publication date: May 26, 2011
    Applicant: GIGALANE CO. LTD.
    Inventors: Yong Goo Lee, Maeng Youl Lee
  • Patent number: 7909613
    Abstract: A coaxial connecting device is provided for making an electrical connection between a coaxial cable and a device under test. A coaxial connecting device electrically connects a coaxial cable to a signal pad and a ground pad. The coaxial contractor of the present invention includes a signal pin for electrically connecting a signal conductor of the coaxial cable to the signal pad; a ground connector for electrically connecting a ground conductor of the coaxial cable to the ground pad; a cylindrical guide tube surrounding the ground conductor for elastically contacting the ground connector while maintaining a predetermined distance with the signal pin; and a dielectric member surrounding a part of the signal pin for electrically isolating the cylindrical guide tube and the signal pin from each other and coaxially maintaining the guide tube and the signal pin.
    Type: Grant
    Filed: January 8, 2008
    Date of Patent: March 22, 2011
    Assignee: Gigalane Co. Ltd.
    Inventors: Yong Goo Lee, Maeng Youl Lee, Min Su Park, Sung Jin Kim
  • Publication number: 20110031991
    Abstract: A probe block mounted on a probe card is provided for achieving fine pitch probes. A probe block for a probe card of a semiconductor test device according to the present invention includes a guide member and a probe. A guide member includes pairs of upper and lower holes and middle holes each interconnecting the upper and lower holes of each pair. A probe includes a first pin tip protruded through a corresponding upper hole for contacting a pad of a device to be tested and a second pin tip protruded through a corresponding lower hole for transferring an electrical signal to the device and a bridge part situated within the middle hole for interconnecting the first and second pin tips. The upper, lower, and middle holes allow the probe to elastically moves in vertical direction. The probe block of the present invention is advantageous in that the probes are supported by guide members so as not to be bent while maintaining a fine pitch.
    Type: Application
    Filed: January 7, 2008
    Publication date: February 10, 2011
    Applicant: GIGALANE CO. LTD.
    Inventors: Yong Goo Lee, Maeng Youl Lee
  • Publication number: 20100015849
    Abstract: A coaxial connecting device is provided for making an electrical connection between a coaxial cable and a device under test. A coaxial connecting device electrically connects a coaxial cable to a signal pad and a ground pad. The coaxial contractor of the present invention includes a signal pin for electrically connecting a signal conductor of the coaxial cable to the signal pad; a ground connector for electrically connecting a ground conductor of the coaxial cable to the ground pad; a cylindrical guide tube surrounding the ground conductor for elastically contacting the ground connector while maintaining a predetermined distance with the signal pin; and a dielectric member surrounding a part of the signal pin for electrically isolating the cylindrical guide tube and the signal pin from each other and coaxially maintaining the guide tube and the signal pin.
    Type: Application
    Filed: January 8, 2008
    Publication date: January 21, 2010
    Applicant: Gigalane Co., Ltd.
    Inventors: Yong Goo Lee, Maeng Youl Lee, Min Su Park, Sung Jin Kim