Patents by Inventor Young-Hoon Lee

Young-Hoon 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: 20020186626
    Abstract: A method of controlling a side push-pull (SPP) balance in a dual push-pull (DPP) type tracking servo employing both a main push-pull (MPP) balance and the SPP balance includes rotating a disc without performing a tracking servo, periodically shifting a pickup from a track center to the right and left by a first distance, obtaining an SPP signal and low-pass filtering the SPP signal to obtain a DC component, and adjusting an offset of the SPP signal so that the DC component of the SPP signal is 0. Since the pickup is forcibly and periodically shifted from the track center to the right and left by the predetermined distance during an SPP balance control, the SPP balance control can be effectively performed even on a disc having little eccentricity.
    Type: Application
    Filed: June 12, 2002
    Publication date: December 12, 2002
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Young-Hoon Lee, In-Wook Hwang, Young-Ok Koh
  • Patent number: 6454817
    Abstract: Disclosed is a method for manufacturing a solid electrolytic capacitor using a functional polymer composition. The method comprises immersing the rolled aluminum electrolytic capacitor device in polyaniline solution with high electric conductivity to impregnate the device with polyaniline, drying the impregnated device in a drying oven which is maintained at constant temperature to fully remove the solvent, inserting the dried device to a capacitor aluminum can and then sealing with epoxy resin, to manufacture a solid electrolytic capacitor using a functional polymer. As such, the impregnation can be performed well at not only normal temperature and pressure, but also high temperature and reduced pressure. The solid electrolytic capacitor has the advantages of high capacity, low impedance and low ESR, and also, low manufacturing cost, simple processes and high reliability.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: September 24, 2002
    Assignee: Samwha Electric Co., Ltd.
    Inventors: Dal-Woo Shin, Jong-Joo Park, Young-Hoon Lee, Yong-Chul Kim, Sung-Ho Kim
  • Publication number: 20020042976
    Abstract: Disclosed is a method for manufacturing a solid electrolytic capacitor using a functional polymer composition. The method comprises immersing the rolled aluminum electrolytic capacitor device in polyaniline solution with high electric conductivity to impregnate the device with polyaniline, drying the impregnated device in a drying oven which is maintained at constant temperature to fully remove the solvent, inserting the dried device to a capacitor aluminum can and then sealing with epoxy resin, to manufacture a solid electrolytic capacitor using a functional polymer. As such, the impregnation can be performed well at not only normal temperature and pressure, but also high temperature and reduced pressure. The solid electrolytic capacitor has the advantages of high capacity, low impedance and low ESR, and also, low manufacturing cost, simple processes and high reliability.
    Type: Application
    Filed: May 22, 2001
    Publication date: April 18, 2002
    Inventors: Dal-Woo Shin, Jong-Joo Park, Young-Hoon Lee, Yong-Chul Kim, Sung-Ho Kim
  • Publication number: 20010017392
    Abstract: MOSFET comprising:
    Type: Application
    Filed: March 22, 2001
    Publication date: August 30, 2001
    Applicant: International Business Machines Corporation.
    Inventors: James Hartfiel Comfort, Young Hoon Lee, Yaun Taur, Samuel Jonas Wind, Hom-Sum Philip Wong
  • Patent number: 6096655
    Abstract: In a dual-damascene processes for multi level interconnection a method for forming trenches and vias in the inter-insulation is accomplished without etching out the inter-insulation layer. A thick sacrificial layer is first deposited and reversed etched to form sacrificial pillars 64 forming the vias and sacrificial bridges 72 forming the trenches. The sacrificial layer can be any material (insulator, semiconductor, or metal), provided it can be easily patterned and selectively removed later over the inter insulator layer. Thereafter a low-k inter-insulation layer is deposited around the sacrificial pillars and bridges. It is these sacrificial pillars and bridges that are etched away leaving behind vias and trenches in the inter-insulation layer. An advantage of the invention is that it replaces a difficult RIE process of vias and trenches with a much easier RIE of sacrificial pillars and bridges.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: August 1, 2000
    Assignee: International Business Machines, Corporation
    Inventors: Young Hoon Lee, Ying Zhang
  • Patent number: 6093947
    Abstract: The present invention relates to a recessed channel/gate MOSFET structure which comprises a semiconductor wafer having a plurality of shallow trench isolation regions embedded therein, wherein between each adjacent shallow trench isolation region is a field effect transistor region which comprises a source and drain region which are spaced apart by a gate region, said gate region comprising a poly gate region which is positioned between oxide spacers, said poly gate region having a metal contact region on its top surface and a gate oxide region on its bottom surface embedded in said semiconductor wafer and wherein said source and drain regions have an extension which wraps around said oxide spacers and provides a connection with a channel region which is formed below said gate oxide region.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: July 25, 2000
    Assignee: International Business Machines Corporation
    Inventors: Hussein Ibrahim Hanafi, Young Hoon Lee, Hsingjen Wann
  • Patent number: 6063699
    Abstract: The present invention provides a process of fabricating high aspect ratio holes (H/L is 2 or greater) in a semiconductor structure wherein a masked gate-like reactive ion etch process is employed. The high aspect ratio holes have perfectly vertical sidewalls thus they are particularly useful in fabricating gate electrodes of sub-0.05 .mu.m MOSFETs using a damascene process.
    Type: Grant
    Filed: August 19, 1998
    Date of Patent: May 16, 2000
    Assignee: International Business Machines Corporation
    Inventors: Hussein Ibrahim Hanafi, Young Hoon Lee, Hsingjen Wann
  • Patent number: 5665203
    Abstract: A method for etching silicon is described incorporating first and second steps of reactive ion etching through a patterned oxide layer in respective atmospheres of HBr, Cl.sub.2 and O.sub.2 and then HBr and O.sub.2 in situ by terminating the first etching step and removing substantially all Cl.sub.2 before continuing with the second step of etching. The invention overcomes the problem of uneven etching of n+ and p+ silicon gates for CMOS transistor logic during the step of simultaneously etching silicon to form sub 0.25 micron gate lengths and vertical sidewalls while stopping on the gate oxide.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: September 9, 1997
    Assignee: International Business Machines Corporation
    Inventors: Young Hoon Lee, Keith Raymond Milkove, John William Stiebritz, Jr.
  • Patent number: 5548270
    Abstract: An improved bit sequential type parallel comparator capable of locating a minimum value among values of `m` bits stored in `n` registers within `m` clock cycles and the location thereof by bit-sequentially receiving those values, which includes a bit sequential type parallel comparator, which includes a minimum data detection circuit for detecting a minimum data by comparing a data of `m` bits sequentially inputted from `n` registers within `m` clock cycles; a minimum data generation circuit for generating a 1's complementary value of a minimum data using the data of `n` bits obtained by the minimum data detection circuit and an enable signal inputted from an eternally connected element; a minimum location information detection circuit for detecting a location of the minimum value among the `n` register values using the data obtained by the minimum data generation circuit and the data obtained by the minimum data detection circuit and for resetting the minimum data detection circuit upon location of the minim
    Type: Grant
    Filed: July 24, 1995
    Date of Patent: August 20, 1996
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyoung-Gon Kim, Young-Moo Kwon, Young Hoon Lee
  • Patent number: D387622
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: December 16, 1997
    Inventor: Young Hoon Lee
  • Patent number: D392560
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: March 24, 1998
    Inventor: Young Hoon Lee