Patents by Inventor Choong-Ho Lee

Choong-Ho 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).

  • Patent number: 7586149
    Abstract: A circuit device including vertical transistors connected to buried bitlines and a method of manufacturing the circuit device. The circuit device includes a semiconductor substrate including a peripheral circuit region and left and right cell regions at both sides of the peripheral circuit region, bottom active regions arranged on the semiconductor substrate to be spaced apart from one another in a column direction and to extend from the peripheral circuit region alternately to the left cell region and the right cell region in a row direction, channel pillars protruding from the bottom active regions in a vertical direction and arranged to be aligned in the row direction and spaced apart from one another, gate electrodes provided with a gate dielectric layer and attached to surround side surfaces of the channel pillars, and buried bitlines extending along the bottom active regions, the bottom active regions including a bottom source/drain region.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: September 8, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-man Yoon, Dong-gun Park, Kang-yoon Lee, Choong-ho Lee, Bong-soo Kim, Seong-goo Kim, Hyeoung-won Seo, Seung-bae Park
  • Patent number: 7585755
    Abstract: A method of fabricating a non-volatile memory device according to example embodiments may include forming a semiconductor layer on a substrate. A plurality of lower charge storing layers may be formed on a bottom surface of the semiconductor layer. A plurality of lower control gate electrodes may be formed on the plurality of lower charge storing layers. A plurality of upper charge storing layers may be formed on a top surface of the semiconductor layer. A plurality of upper control gate electrodes may be formed on the plurality of upper charge storing layers, wherein the plurality of lower and upper control gate electrodes may be arranged alternately.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 8, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seung-hwan Song, Yoon-dong Park, June-mo Koo, Suk-pil Kim, Jae-woong Hyun, Choong-ho Lee, Tae-hun Kim
  • Publication number: 20090221138
    Abstract: A method of manufacturing a semiconductor device, including forming a plurality of gate structures on a substrate, the gate structures each including a hard mask pattern stacked on a gate conductive pattern, forming an insulating layer pattern between the gate structures at least partially exposing a top surface of the hard mask pattern, forming a trench that exposes at least a top surface of the gate conductive pattern by selectively removing the hard mask pattern, and forming a silicide layer on the exposed gate conductive pattern.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 3, 2009
    Inventors: Hee-Soo KANG, Byung-Kyu CHO, Choong-Ho LEE, Dong-Uk CHOI
  • Patent number: 7579648
    Abstract: A semiconductor device may include a tubular channel pattern vertically extending from a semiconductor substrate. A gate insulation layer may be provided on faces exposed through the channel pattern. A gate electrode may be provided on the gate insulation layer. The gate electrode may fill the channel pattern. A conductive region, which may serve as lower source/drain regions, may be formed at a surface portion of the semiconductor substrate. The conductive region may contact a lower portion of the channel pattern. A conductive pattern, which may serve as upper source/drain regions, may horizontally extend from an upper portion of the channel pattern.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: August 25, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Man Yoon, Dong-Gun Park, Choong-Ho Lee, Chul Lee
  • Patent number: 7577042
    Abstract: Provided in one example embodiment, a method of programming n bits of data to a semiconductor memory device may include outputting a first bit of data written in a memory cell from a first latch, storing the first bit of the data to a third latch, storing a second bit of the data to the first latch, outputting the second bit of the data from the first latch, storing the second bit of the data to the second latch, and writing the second bit of the data stored in the second latch to the memory cell with reference to a data storage state of the first bit of the data stored in the third latch.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: August 18, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-woong Hyun, Kyoung-lae Cho, Kyu-charn Park, Yoon-dong Park, Choong-ho Lee, Sung-jae Byun
  • Publication number: 20090194805
    Abstract: A non-volatile memory device includes a substrate, an active region, an isolation layer, a tunnel insulation layer, a floating gate, a dielectric layer and a control gate. The active region includes an upper active region having a first width, and a lower active region beneath the upper active region and having a second width substantially larger than the first width. The isolation layer is adjacent to the active region. The tunnel insulation layer is on the upper active region. The floating gate is on the tunnel insulation layer and has a third width substantially larger than the first width. The dielectric layer is on the floating layer. The control gate is on the dielectric layer.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 6, 2009
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Jong-Ho Lim
  • Publication number: 20090191681
    Abstract: A NOR-type flash memory device comprises a plurality twin-bit memory cells arranged so that pairs of adjacent memory cells share a source/drain region and groups of four adjacent memory cells are electrically connected to each other by a single bitline contact.
    Type: Application
    Filed: April 6, 2009
    Publication date: July 30, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Man YOON, Suk-kang SUNG, Dong-Gun PARK, Choong-Ho LEE, Tae-Yong KIM
  • Publication number: 20090190398
    Abstract: A method of programming data in a NAND flash memory device including at least one even bitline and at least one odd bitline, the method including programming N-bit data into first cells coupled to the at least one even bitline or the at least one odd bitline and programming M-bit data into second cells coupled to the other of the at least one even bitline and the at least one odd bitline, where N is a natural number greater than one and M is a natural number greater than N.
    Type: Application
    Filed: November 5, 2008
    Publication date: July 30, 2009
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Dong-Uk Choi
  • Publication number: 20090189217
    Abstract: Semiconductor memory devices include a semiconductor substrate and a plurality of semiconductor material pillars in a spaced relationship on the semiconductor substrate. Respective surrounding gate electrodes surround ones of the pillars. A first source/drain region is in the semiconductor substrate between adjacent ones of the pillars and a second source/drain region is in an upper portion of at least one of the adjacent pillars. A buried bit line is in the first source/drain region and electrically coupled to the first source/drain region and a storage node electrode is on the upper portion of the at least one of the adjacent pillars and electrically contacting with the second source/drain region.
    Type: Application
    Filed: April 6, 2009
    Publication date: July 30, 2009
    Inventors: Jae-man Yoon, Dong-gun Park, Choong-ho Lee, Moon-suk Yi, Chul Lee
  • Patent number: 7566619
    Abstract: A method of forming an integrated circuit device includes forming a non-planar field-effect transistor in a cell array portion of a semiconductor substrate and forming a planar field-effect transistor in a peripheral circuit portion of the semiconductor substrate. The non-planar field-effect transistor may be selected from the group of a FinFET and a recessed gate FET. Dopants may be implanted into a channel region of the non-planar field-effect transistor, and a cell protection layer may be formed on the non-planar field-effect transistor. Then, dopants may be selectively implanted into a channel region of the planar field-effect transistor using the cell protection layer as a mask to block implanting of the dopants into the channel region of the non-planar field-effect transistor.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: July 28, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Joon Ahn, Dong-Gun Park, Choong-Ho Lee, Hee-Soo Kang
  • Publication number: 20090180317
    Abstract: A non-volatile memory device includes a selection transistor coupled to a bit line. The device also includes a plurality of memory cells serially coupled to the selection transistor and at least one dummy cell located between the plurality of memory cells. The dummy cell is turned off during a programming operation of a memory cell located between the dummy cell and the selection transistor.
    Type: Application
    Filed: April 1, 2009
    Publication date: July 16, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Soo Kang, Dong-Uk Choi, Choong-Ho Lee, Sang-Gu Kang
  • Patent number: 7560759
    Abstract: A fin type MOSFET and a method of manufacturing the fin type MOSFET are disclosed. Gate structures in the fin type MOSFET are formed by a damascene process without a photolithography process. Impurities used to form a channel region are selectively implanted into portions of a semiconductor substrate adjacent to the gate structures.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: July 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Soo Kang, Jae-Man Yoon, Dong-Gun Park, Sang-Yeon Han, Young-Joon Ahn, Choong-Ho Lee
  • Publication number: 20090170271
    Abstract: According to some embodiments of the invention, a fin type transistor includes an active structure integrally formed with a silicon substrate. The active structure includes grooves that form blocking regions under source/drain regions. A gate structure is formed to cross the upper face of the active structure and to cover the exposed side surfaces of the lateral portions of the active structure. An effective channel length of a fin type transistor may be sufficiently ensured so that a short channel effect of the transistor may be prevented and the fin type transistor may have a high breakdown voltage.
    Type: Application
    Filed: March 3, 2009
    Publication date: July 2, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Man YOON, Choong-Ho LEE, Dong-Gun PARK, Chul LEE
  • Publication number: 20090166714
    Abstract: A non-volatile memory device includes field insulating layer patterns on a substrate to define an active region of the substrate, upper portions of the field insulating layer patterns protruding above an upper surface of the substrate, a tunnel insulating layer on the active region, a charge trapping layer on the tunnel insulating layer, a blocking layer on the charge trapping layer, first insulating layers on upper surfaces of the field insulating layer patterns, and a word line structure on the blocking layer and first insulating layers.
    Type: Application
    Filed: December 30, 2008
    Publication date: July 2, 2009
    Inventors: Suk-Kang Sung, Choong-Ho Lee, Dong-Uk Choi, Hee-Soo Kang
  • Publication number: 20090146291
    Abstract: A semiconductor package includes a semiconductor chip including a semiconductor substrate and a plurality of cell transistors arranged on the semiconductor substrate. Channel regions of the cell transistors have channel lengths that extend in a first direction, and the package further includes a supporting substrate having an upper surface on which the semiconductor chip is affixed. The supporting substrate is configured to bend in response to a temperature increase in a manner that applies a tensile stress to the channel regions of the semiconductor chip in the first direction. Related methods are also disclosed.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Inventors: Hee-Soo Kang, Choong-Ho Lee, Hye-Jin Cho
  • Publication number: 20090127633
    Abstract: In one embodiment, a semiconductor memory device includes a substrate having first and second active regions. The first active region includes a first source and drain regions and the second active region includes a second source and drain regions. A first interlayer dielectric is located over the substrate. A first conductive structure extends through the first interlayer dielectric. A first bit line is on the first interlayer dielectric. A second interlayer dielectric is on the first interlayer dielectric. A contact hole extends through the second and first interlayer dielectrics. The device includes a second conductive structure within the contact hole and extending through the first and second interlayer dielectrics. A second bit line is on the second interlayer dielectric. A width of the contact hole at a bottom of the second interlayer dielectric is less than or substantially equal to a width at a top of the second interlayer dielectric.
    Type: Application
    Filed: October 24, 2008
    Publication date: May 21, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-Sun SEL, Jung-Dal CHOI, Choong-Ho LEE, Ju-Hyuck CHUNG, Hee-Soo KANG, Dong-uk CHOI
  • Patent number: 7531412
    Abstract: Semiconductor memory devices include a semiconductor substrate and a plurality of semiconductor material pillars in a spaced relationship on the semiconductor substrate. Respective surrounding gate electrodes surround ones of the pillars. A first source/drain region is in the semiconductor substrate between adjacent ones of the pillars and a second source/drain region is in an upper portion of at least one of the adjacent pillars. A buried bit line is in the first source/drain region and electrically coupled to the first source/drain region and a storage node electrode is on the upper portion of the at least one of the adjacent pillars and electrically contacting with the second source/drain region.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: May 12, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-man Yoon, Dong-gun Park, Choong-ho Lee, Moon-suk Yi, Chul Lee
  • Patent number: 7528022
    Abstract: A method of forming a fin transistor using a damascene process is provided. A filling mold insulation pattern is recessed to expose an upper portion of a fin, and a mold layer is formed. The mold layer is patterned to form a groove crossing the fin and exposing a part of the upper portion of the fin. A gate electrode is formed to fill the groove with a gate insulation layer interposed between the fin and the gate electrode, and the mold layer is removed. Impurities are implanted through both sidewalls and a top surface of the upper portion of the fin disposed at opposite sides of a gate electrode to form a source/drain region.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: May 5, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-Joon Ahn, Dong-Gun Park, Choong-Ho Lee, Hee-Soo Kang
  • Patent number: 7521766
    Abstract: According to some embodiments of the invention, a fin type transistor includes an active structure integrally formed with a silicon substrate. The active structure includes grooves that form blocking regions under source/drain regions. A gate structure is formed to cross the upper face of the active structure and to cover the exposed side surfaces of the lateral portions of the active structure. An effective channel length of a fin type transistor may be sufficiently ensured so that a short channel effect of the transistor may be prevented and the fin type transistor may have a high breakdown voltage.
    Type: Grant
    Filed: March 1, 2005
    Date of Patent: April 21, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Man Yoon, Choong-Ho Lee, Dong-Gun Park, Chul Lee
  • Patent number: 7514325
    Abstract: Example embodiments of the present invention relate to a semiconductor device and methods of fabricating the same. Other example embodiments of the present invention relate to a fin-field effect transistor (Fin-FET) having a fin-type channel region and methods of fabricating the same. A Fin-FET having a gate all around (GAA) structure that may use an entire area around a fin as a channel region is provided. The Fin-FET having the GAA structure includes a semiconductor substrate having a body, a pair of support pillars and a fin. The pair of support pillars may protrude from the body. A fin may be spaced apart from the body and may have ends connected to and supported by the pair of support pillars. A gate electrode may surround at least a portion of the fin of the semiconductor substrate. The gate electrode may be insulated from the semiconductor substrate. A gate insulation layer may be interposed between the gate electrode and the fin of the semiconductor substrate.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: April 7, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Suk-Pil Kim, Jae-Woong Hyun, Yoon-Dong Park, Won-Joo Kim, Dong-Gun Park, Choong-Ho Lee