Patents by Inventor Hyoung Soo Ko

Hyoung Soo Ko 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: 7419843
    Abstract: A method of manufacturing a semiconductor probe having a resistive tip. The method includes forming first and second mask films having a rectangular shape on a silicon substrate, first etching an upper surface of the silicon substrate, forming a third mask film corresponding to a width of a tip neck by etching the first mask film, forming the width of the tip neck to a predetermined width by second etching of the silicon substrate using the third mask film as a mask, and forming a peak forming portion of the tip by annealing the silicon substrate after removing the third mask film. A semiconductor probe having a uniform height and tips having a uniform neck width can be manufactured.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: September 2, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chul-min Park, Hong-sik Park, Hyoung-soo Ko, Seung-bum Hong
  • Patent number: 7411210
    Abstract: A semiconductor probe with a resistive tip and a method of fabricating the semiconductor probe. The resistive tip doped with a first impurity includes a resistive region formed at a peak thereof and lightly doped with a second impurity opposite in polarity to the first impurity, and first and second semiconductor regions formed on sloped sides thereof and heavily doped with the second impurity. The semiconductor probe includes the resistive tip, a cantilever having an end on which the resistive tip is disposed, a dielectric layer disposed on the cantilever and covering the resistive region, and a metal shield disposed on the dielectric layer and having an opening formed at a position corresponding to the resistive region.
    Type: Grant
    Filed: January 3, 2006
    Date of Patent: August 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-hwan Jung, Hyung-cheol Shin, Hyoung-soo Ko, Seung-bum Hong
  • Publication number: 20080169465
    Abstract: A method of manufacturing a probe includes: forming a first slant face of the probe through an anisotropic etching process using a first etching mask pattern formed on a silicon substrate; forming a first semiconductor electrode region; forming a second etching mask pattern in an opposite direction of the first etching mask pattern on the silicon substrate; forming a spacer layer on a side wall of the second etching mask pattern; forming a second slant face of the probe; forming a second semiconductor electrode region; forming a silicon oxide layer pattern on the resulting silicon substrate; forming spacer layers on both side walls of the silicon oxide layer pattern; and etching the silicon substrate to a predetermined depth.
    Type: Application
    Filed: December 17, 2007
    Publication date: July 17, 2008
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Hyoung Soo KO, Byung Gook PARK, Seung Bum HONG, Chul Min PARK, Woo Young CHOI, Jong Pil KIM, Jae Young SONG, Sang Wan KIM
  • Publication number: 20080138924
    Abstract: A method of manufacturing an electric field sensor having an electric field shield. The method includes providing a substrate doped with a first impurity; forming a resistive tip having a resistance region doped with a low concentration of a second impurity at an apex of a protruding portion of the substrate, and first and second semiconductor electrode regions doped with a high concentration of the second impurity on both slopes of the protruding portion with the resistive region therebetween, wherein the second impurity has a polarity opposite to that of the first impurity; forming a dielectric layer on the resistive tip; forming a mask having a high aspect ratio on the dielectric layer; depositing a metal layer on the dielectric layer; and exposing the dielectric layer formed on the resistance region through the metal layer by removing the mask.
    Type: Application
    Filed: October 15, 2007
    Publication date: June 12, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chul-min PARK, Hyoung-soo Ko, Seung-bum Hong
  • Publication number: 20080116926
    Abstract: Provided are a semiconductor probe having a resistive tip and a method of fabricating the semiconductor probe. The semiconductor probe includes a resistive tip which is doped with a first impurity, and of which an apex portion is doped with a low concentration of a second impurity of opposite polarity to the first impurity, wherein first and second semiconductor electrode regions doped with a high concentration of the second impurity is formed on slopes of the resistive tip; a dielectric layer formed on the resistive tip; an electric field shield which is formed on the dielectric layer, and forms a plane together with the dielectric layer on the apex portion of the resistive tip; and a cantilever having an end on which the resistive tip is located.
    Type: Application
    Filed: September 26, 2007
    Publication date: May 22, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hyoung-soo KO, Ju-hwan Jung, Seung-bum Hong, Chul-min Park
  • Publication number: 20080078239
    Abstract: A semiconductor probe having a wedge shape resistive tip and a method of fabricating the semiconductor probe is provided. The semiconductor probe includes a resistive tip that is doped with a first impurity, has a resistance region doped with a low concentration of a second impurity having an opposite polarity to the first impurity, and has first and second semiconductor electrode regions doped with a high concentration of the second impurity on both side slopes of the resistive tip.
    Type: Application
    Filed: May 18, 2007
    Publication date: April 3, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Hyoung-soo KO, Ju-hwan JUNG, Seung-bum HONG, Hong-sik PARK, Chul-min PARK
  • Publication number: 20080049589
    Abstract: A high density data storage device and a data recording or reproduction method using the same, which can record or reproduce high density data without contact, thereby preventing data errors due to contact are provided. The high density data storage device uses a recording medium and a probe. The recording medium is a thin film made from phase change material or oxide resistance change material, and the probe has a tip formed in a lower portion thereof, which moves with a spacing from the top of the recording medium. Further, recording or reproduction of data is performed through electric field or heat emission, which is generated in the tip of the probe, without direct contact between the recording medium and the probe, so that it is possible to remove instability caused by contact between the recording medium and the probe and to stably record or reproduce data in or from the recording medium without errors.
    Type: Application
    Filed: February 26, 2007
    Publication date: February 28, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Bum Hong, Ju Hwan Jung, Hyoung Soo Ko
  • Publication number: 20080030909
    Abstract: An electric field read/write head, a method of manufacturing the same, and a data read/write device including the electric field read/write head are provided. The data read/write device includes an electric field read/write head which reads and writes data to and from a recording medium. The electric field read/write head includes a semiconductor substrate, a resistance region, source and drain regions, and a write electrode. The semiconductor substrate includes a first surface and a second surface with adjoining edges. The resistance region is formed to extend from a central portion at one end of the first surface to the second surface. The source region and the drain region are formed at either side of the resistance region and are separated from the first surface. The write electrode is formed on the resistance region with an insulating layer interposed between the write electrode and the resistance region.
    Type: Application
    Filed: March 21, 2007
    Publication date: February 7, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyoung-soo Ko, Ju-hwan Jung, Yong-su Kim, Seung-bum Hong, Hong-sik Park
  • Patent number: 7319224
    Abstract: Provided are a semiconductor probe with a resistive tip, and a method of fabricating the semiconductor probe.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: January 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hong-sik Park, Kyoung-lock Baeck, Ju-hwan Jung, Hyoung-soo Ko, Chul-min Park, Seung-bum Hong
  • Publication number: 20070292773
    Abstract: A nano imprint master and a method of manufacturing the same are provided. The method includes: implanting conductive metal ions into a substrate including quartz to form a conductive layer inside the quartz substrate; coating a resist on the quartz substrate in which the conductive layer is formed, to form a resist coating layer; exposing the resist coating layer to an electron beam to form micropatterns; etching the quartz substrate by using the resist coating layer, in which the micropatterns are formed, as a mask; and removing the resist coating layer to obtain a master in which micropatterns are formed.
    Type: Application
    Filed: May 8, 2007
    Publication date: December 20, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hae-sung KIM, Hyoung-soo KO, Seung-bum HONG, Jin-seung SOHN, Sung-hoon CHOA, Chee-kheng LIM
  • Publication number: 20070211542
    Abstract: A multi-probe for writing data to and/or reading data from a recording medium. The multi-probe includes a plurality of probes. All of the probes are working probes for writing the data to and/or reading the data from the recording medium.
    Type: Application
    Filed: November 27, 2006
    Publication date: September 13, 2007
    Inventors: Hyoung-soo Ko, Seung-bum Hong, Dong-ki Min, Hong-sik Park
  • Publication number: 20070119240
    Abstract: A semiconductor probe and a method of writing and reading information using the same. The semiconductor probe includes a cantilever and a tip formed on an end portion of the cantilever to write or read information on or from a ferroelectric medium on a surface of which an electrode is formed. The tip includes a resistive region lightly doped with semiconductor impurities and a conductive region heavily doped with the semiconductor impurities. The cantilever includes an electrostatic force generation electrode formed on a bottom surface facing the medium. A contact force between the tip and the medium is adjusted by selectively applying a voltage between the electrode formed on the ferroelectric medium and the electrostatic force generation electrode.
    Type: Application
    Filed: September 26, 2006
    Publication date: May 31, 2007
    Inventors: Hong-ski Park, Ju-hwan Jung, Hyoung-soo Ko, Seung-bum Hong
  • Publication number: 20070042522
    Abstract: A method of fabricating a resistive probe having a self-aligned metal shield. The method includes sequentially forming a first insulating layer, a metal shield, and a second insulating layer on a resistive tip of a substrate; etching the second insulating layer to expose the metal shield on a resistive region; etching the exposed metal shield; and etching the first insulating layer to expose the resistive region.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 22, 2007
    Inventors: Hong-sik Park, Ju-hwan Jung, Hyoung-soo Ko, Seung-bum Hong
  • Publication number: 20070040116
    Abstract: A semiconductor probe having a resistive tip with a low aspect ratio and a method of fabricating the semiconductor probe are provided. The semiconductor probe includes a resistive tip and a cantilever having an end portion on which the resistive tip is located. The resistive tip doped with a first impurity includes a resistive region formed at a peak of the resistive tip and lightly doped with a second impurity opposite in polarity to the first impurity, and first and second semiconductor electrode regions formed on inclined surfaces of the resistive tip and heavily doped with the second impurity. The height of the resistive tip is less than the radius of the resistive tip. Accordingly, the spatial resolution of the semiconductor probe is improved.
    Type: Application
    Filed: June 8, 2006
    Publication date: February 22, 2007
    Inventors: Hyoung-soo Ko, Ju-hwan Jung, Seung-bum Hong, Hong-sik Park
  • Publication number: 20060175644
    Abstract: A ferroelectric recording medium and a writing method for the same are provided. The ferroelectric recording medium includes a ferroelectric layer which reverses its polarization when receiving a predetermined coercive voltage. A nonvolatile anisotrophic conduction layer is formed on the ferroelectric layer. A resistance of the anisotrophic conduction layer decreases when receiving a first voltage lower than the coercive voltage, and the resistance of the anisotrophic conduction layer increases when receiving a second voltage higher than the coercive voltage. Multi-bit information is stored by a combination of polarization states of the ferroelectric layer and the resistance of the anisotrophic conduction layer. Accordingly, multiple bits can be expressed on one domain of the ferroelectric recording medium.
    Type: Application
    Filed: February 7, 2006
    Publication date: August 10, 2006
    Inventors: Hyoung-soo Ko, Eun-sik Kim, Sung-dong Kim, Ju-hwan Jung, Hong-sik Park, Chul-min Park, Seung-bum Hong
  • Publication number: 20060157440
    Abstract: A semiconductor probe with a resistive tip and a method of fabricating the semiconductor probe. The resistive tip doped with a first impurity includes a resistive region formed at a peak thereof and lightly doped with a second impurity opposite in polarity to the first impurity, and first and second semiconductor regions formed on sloped sides thereof and heavily doped with the second impurity. The semiconductor probe includes the resistive tip, a cantilever having an end on which the resistive tip is disposed, a dielectric layer disposed on the cantilever and covering the resistive region, and a metal shield disposed on the dielectric layer and having an opening formed at a position corresponding to the resistive region.
    Type: Application
    Filed: January 3, 2006
    Publication date: July 20, 2006
    Inventors: Ju-hwan Jung, Hyung-cheol Shin, Hyoung-soo Ko, Seung-bum Hong
  • Publication number: 20060145806
    Abstract: A magnetic logic device (MLD) and methods of manufacturing and operating an MLD are provided. The MLD includes: a first interconnection; a lower magnetic layer formed on the first interconnection, the lower magnetic layer having a magnetization direction fixed in a predetermined direction; a non-magnetic layer formed on the lower magnetic layer; an upper magnetic layer formed on the non-magnetic layer, the upper magnetic layer having a magnetization direction parallel or anti-parallel to the magnetization direction of the lower magnetic layer; and a second interconnection formed on the upper magnetic layer. A first current source is disposed between one end of the first interconnection and one end of the second interconnection and a second current source is disposed between the other end of the first interconnection and the other end of the second interconnection.
    Type: Application
    Filed: December 30, 2005
    Publication date: July 6, 2006
    Inventors: Sung-dong Kim, Eun-sik Kim, Ju-hwan Jung, Hyoung-soo Ko, Dong-ki Min, Hong-sik Park, Seung-bum Hong
  • Publication number: 20060091437
    Abstract: Provided are a resistive memory device having a probe array and a method of manufacturing the same. The resistive memory device includes a memory part having a bottom electrode and a ferroelectric layer sequentially formed on a first substrate; a probe part having an array of resistive probes arranged on a second substrate, with the tips of the resistive probes facing the ferroelectric layer so as to write and read data on the ferroelectric layer; and a binding layer which grabs and fixes the resistive probes on or above the ferroelectric layer. The method of manufacturing the resistive memory device includes forming a bottom electrode and a ferroelectric layer sequentially on a first substrate; forming an array of resistive probes on a second substrate; and wafer level bonding the first substrate to the second substrate using a binding layer such that tips of the resistive probes face the ferroelectric layer.
    Type: Application
    Filed: October 3, 2005
    Publication date: May 4, 2006
    Inventors: Seung-bum Hong, Ju-hwan Jung, Hyoung-soo Ko, Hong-sik Park, Dong-ki Min, Eun-sik Kim, Chul-min Park, Sung-dong Kim, Kyoung-lock Baeck
  • Publication number: 20060092817
    Abstract: Provided is a ferroelectric recording medium including a ferroelectric recording layer formed of a polarization reversal ferroelectric material and an anisotropic conduction layer that covers the ferroelectric recording layer and changes into a conductor or a non-conductor based on external energy.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 4, 2006
    Inventors: Hyoung-soo Ko, Ju-hwan Jung, Seung-bum Hong, Hong-sik Park, Chul-min Park, Kyoung-Iock Baeck
  • Publication number: 20060060779
    Abstract: A semiconductor probe with a resistive tip, and a method of fabricating the semiconductor probe.
    Type: Application
    Filed: September 7, 2005
    Publication date: March 23, 2006
    Inventors: Hong-sik Park, Kyoung-lock Baeck, Ju-hwan Jung, Hyoung-soo Ko, Chul-min Park, Seung-bum Hong