Patents by Inventor Kam Leung

Kam Leung 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: 20040266124
    Abstract: In one embodiment of the invention, source and drain regions are formed as well as source and drain contact regions. Thereafter source and drain extension regions are formed. In another embodiment, elevated source and drain regions are formed as well as source and drain extension regions. Thereafter source and drain contact regions are formed at a temperature up to about 600° C. and an annealing time of up to about one minute.
    Type: Application
    Filed: July 19, 2004
    Publication date: December 30, 2004
    Inventors: Ronnen A. Roy, Cyril Cabral, Christian Lavoie, Kam-Leung Lee
  • Publication number: 20040169966
    Abstract: The invention relates to a magnetic recording head comprising: a bottom shield; a top shield; and AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive layer contact at one end region of said MR and SAL. Furthermore, magnetic recording heads with GMR device free of electric-pop noise also are disclosed.
    Type: Application
    Filed: March 3, 2004
    Publication date: September 2, 2004
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Patent number: 6777298
    Abstract: In one embodiment of the invention, source and drain regions are formed as well as source and drain contact regions. Thereafter source and drain extension regions are formed. In another embodiment, elevated source and drain regions are formed as well as source and drain extension regions. Thereafter source and drain contact regions are formed at a temperature up to about 600° C. and an annealing time of up to about one minute.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: August 17, 2004
    Assignee: International Business Machines Corporation
    Inventors: Ronnen A. Roy, Cyril Cabral, Jr., Christian Lavoie, Kam-Leung Lee
  • Publication number: 20040119886
    Abstract: A method and circuit are provided for color space conversion of Y (luminance) and UV (chrominance) components from a planar YUV 4:2:0 format to an interleaved, or packed YUV 4:2:2 format, and from an interleaved, or packed YUV 4:2:2 format to a planar YUV 4:2:0 format. The method for both conversions includes reading source data, interpolating the sampled YUV component values, and performing a pass to thereby write the converted YUV component values in three passes, one pass for all values of the respective YUV components.
    Type: Application
    Filed: December 10, 2003
    Publication date: June 24, 2004
    Applicant: Intel Corporation
    Inventors: Val Cook, Kam Leung, Wing Hang Wong
  • Patent number: 6743686
    Abstract: A process for making abrupt, e.g. <20 nm/decade, PN junctions and haloes in, e.g., CMOSFETs having gate lengths of, e.g. <50 nm, uses a mask, e.g., sidewall spacers, during ion implantation of gate, source, and drain regions. The mask is removed after source-drain activation by annealing and source and drain extension regions are then implanted. Then the extension regions are activated. Thereafter halo regions are implanted and activated preferably using spike annealing to prevent their diffusion. The process can also be used to make diodes, bipolar transistors, etc. The activation annealing steps can be combined into a single step near the end of the process.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: June 1, 2004
    Assignee: International Business Machines Corporation
    Inventors: Kam Leung Lee, Ying Zhang, Maheswaran Surendra, Edmund M. Sikorski
  • Patent number: 6731297
    Abstract: A machine readable storage media containing executable program instructions which when executed cause a digital processing system to seta plurality of operands and operators. A plurality of texture maps are sent to a processor for texture compositing. Operands are selected for a texture operation. A first logic is used wherein if the circulation of blend stages is equal to a number of blend stages, then a color saturation is performed, and a second logic that if the circulation number of blend stages does not equal the number of blend stages then at least one operand is selected for another texture compositing operation.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: May 4, 2004
    Assignee: Intel Corporation
    Inventors: Kam Leung, Val G. Cook, Peter L. Doyle, Wing Hang Wong
  • Patent number: 6727135
    Abstract: A complementary metal oxide semiconductor (CMOS) device having silicide contacts that are self-aligned to deep junction edges formed within a surface of a semiconductor substrate as well as a method of manufacturing the same are disclosed. Specifically, the CMOS device includes a plurality of patterned gate stack regions formed on a surface of a semiconductor substrate. Each plurality of patterned gate stack regions includes an L-shaped nitride spacer formed on exposed vertical sidewalls thereof, the L-shaped nitride spacer having a vertical element and a horizontal element, wherein the horizontal element is formed on a portion of the substrate that abuts each patterned gate stack region. Silicide contacts are located on other portions of the semiconductor substrate between adjacent patterned gate stack regions not containing the horizontal element of the L-shaped nitride spacer.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: April 27, 2004
    Assignee: International Business Machines Corporation
    Inventors: Kam Leung Lee, Ronnen Andrew Roy
  • Patent number: 6674479
    Abstract: A method and circuit are provided for color space conversion of Y (luminance) and UV (chrominance) components from a planar YUV 4:2:0 format to an interleaved, or packed YUV 4:2:2 format, and from an interleaved, or packed YUV 4:2:2 format to a planar YUV 4:2:0 format. The method for both conversions includes reading source data, interpolating the sampled YUV component values, and performing a pass to thereby write the converted YUV component values in three passes, one pass for all values of the respective YUV components.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: January 6, 2004
    Assignee: Intel Corporation
    Inventors: Val Cook, Kam Leung, Wing Hang Wong
  • Publication number: 20030232464
    Abstract: In one embodiment of the invention, source and drain regions are formed as well as source and drain contact regions. Thereafter source and drain extension regions are formed. In another embodiment, elevated source and drain regions are formed as well as source and drain extension regions. Thereafter source and drain contact regions are formed at a temperature up to about 600° C. and an annealing time of up to about one minute.
    Type: Application
    Filed: June 14, 2002
    Publication date: December 18, 2003
    Inventors: Ronnen A. Roy, Cyril Cabral, Christian Lavoie, Kam-Leung Lee
  • Publication number: 20030209765
    Abstract: A complementary metal oxide semiconductor (CMOS) device having silicide contacts that are self-aligned to deep junction edges formed within a surface of a semiconductor substrate as well as a method of manufacturing the same are disclosed. Specifically, the CMOS device includes a plurality of patterned gate stack regions formed on a surface of a semiconductor substrate. Each plurality of patterned gate stack regions includes an L-shaped nitride spacer formed on exposed vertical sidewalls thereof, the L-shaped nitride spacer having a vertical element and a horizontal element, wherein the horizontal element is formed on a portion of the substrate that abuts each patterned gate stack region. Silicide contacts are located on other portions of the semiconductor substrate between adjacent patterned gate stack regions not containing the horizontal element of the L-shaped nitride spacer.
    Type: Application
    Filed: June 18, 2003
    Publication date: November 13, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kam Leung Lee, Ronnen Andrew Roy
  • Patent number: 6614079
    Abstract: A complementary metal oxide semiconductor (CMOS) device having silicide contacts that are self-aligned to deep junction edges formed within a surface of a semiconductor substrate as well as a method of manufacturing the same are disclosed. Specifically, the CMOS device includes a plurality of patterned gate stack regions formed on a surface of a semiconductor substrate. Each plurality of patterned gate stack regions includes an L-shaped nitride spacer formed on exposed vertical sidewalls thereof, the L-shaped nitride spacer having a vertical element and a horizontal element, wherein the horizontal element is formed on a portion of the substrate that abuts each patterned gate stack region. Silicide contacts are located on other portions of the semiconductor substrate between adjacent patterned gate stack regions not containing the horizontal element of the L-shaped nitride spacer.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: September 2, 2003
    Assignee: International Business Machines Corporation
    Inventors: Kam Leung Lee, Ronnen Andrew Roy
  • Publication number: 20030126171
    Abstract: A method and system for processing data arriving from a bit-stream to perform numerical computations in a temporal order independent fashion. According to one embodiment, the method is applied to IDCT computations to allow processing of IDCT coefficients in the same order they are received from an MPEG bit stream. The coefficients are not required to be converted from scan order to array order before processing. This provides significant advantages in that it imposes minimal storage requirements for the coefficients and the coefficients are processed in scan order.
    Type: Application
    Filed: December 13, 2001
    Publication date: July 3, 2003
    Inventors: Yan Hou, Kam Leung
  • Patent number: 6583971
    Abstract: The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second insulating gap layer between said AMR/GMR and said top shield; and conductive layer contacting electrically both said AMR.GMR device to siaid bottom shield. Furthermore, similar active devices free of electric-pop noise also be disclosed.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: June 24, 2003
    Assignee: SAE Magnetics (HK) Ltd.
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Publication number: 20030115233
    Abstract: The present invention provides an algorithm and hardware structure for numerical operations on signals that is reconfigurable to operate in a downsampling or non-downsampling mode. According to one embodiment, a plurality of adders and multipliers are reconfigurable via a switching fabric to operate as a plurality of MAAC kernels (described in detail below), when operating in a non-downsampling mode and a plurality of MAAC kernels and AMAAC kernels (described in detail below), when operating in a downsampling mode.
    Type: Application
    Filed: November 19, 2001
    Publication date: June 19, 2003
    Inventors: Yan Hou, Hong Jiang, Kam Leung
  • Publication number: 20030103300
    Abstract: The invention relates to a magnetoresistive device comprising: a bottom shield; a top shield; an AMR/GMR device; a first insulating gap layer between said bottom shield and said AMR/GMR; a second insulating gap layer between said AMR/GMR and said top shield; and conductive layer contacting electrically both said AMR/GMR device to said bottom shield. Furthermore, similar active devices free of electric-pop noise also be disclosed.
    Type: Application
    Filed: December 12, 2002
    Publication date: June 5, 2003
    Applicant: Sae Magnetics (HK) Ltd.
    Inventors: Yong Shen, Kwok Kam Leung, Hiroshi Kiyono, Tetsuo Miyazaki
  • Publication number: 20030088599
    Abstract: In particular, the present invention relates to a method and system for improving the efficiency of computational processes and specifically multiply and accumulate (“MAC”) processes such as the DCT (“Discrete Cosine Transform”) and/or IDCT (“Inverse Discrete Cosine Transform”) using a performance optimized method and associated hardware apparatus.
    Type: Application
    Filed: October 3, 2001
    Publication date: May 8, 2003
    Inventors: Yan Hou, Hong Jiang, Kam Leung
  • Patent number: 6537886
    Abstract: A method for fabricating an ultra-shallow semiconductor junction using a high energy co-implantation step; a low energy dopant implantation step, and a fast isothermal annealing step is provided. Microelectronics devices such as FET and CMOS devices containing said ultra-shallow semiconductor junction is also provided herein.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: March 25, 2003
    Assignee: International Business Machines Corporation
    Inventor: Kam Leung Lee
  • Patent number: 6518136
    Abstract: A process for making abrupt, e.g. <20 nm/decade, PN junctions and haloes in, e.g., CMOSFETs having gate lengths of, e.g. <50 nm, uses a mask, e.g., sidewall spacers, during ion implantation of gate, source, and drain regions. The mask is removed after source-drain activation by annealing and source and drain extension regions are then implanted. Then the extension regions are activated. Thereafter halo regions are implanted and activated preferably using spike annealing to prevent their diffusion. The process can also be used to make diodes, bipolar transistors, etc. The activation annealing steps can be combined into a single step near the end of the process.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: February 11, 2003
    Assignee: International Business Machines Corporation
    Inventors: Kam Leung Lee, Ying Zhang, Maheswaran Surendra, Edmund M. Sikorski
  • Publication number: 20030015762
    Abstract: A complementary metal oxide semiconductor (CMOS) device having silicide contacts that are self-aligned to deep junction edges formed within a surface of a semiconductor substrate as well as a method of manufacturing the same are disclosed. Specifically, the CMOS device includes a plurality of patterned gate stack regions formed on a surface of a semiconductor substrate. Each plurality of patterned gate stack regions includes an L-shaped nitride spacer formed on exposed vertical sidewalls thereof, the L-shaped nitride spacer having a vertical element and a horizontal element, wherein the horizontal element is formed on a portion of the substrate that abuts each patterned gate stack region. Silicide contacts are located on other portions of the semiconductor substrate between adjacent patterned gate stack regions not containing the horizontal element of the L-shaped nitride spacer.
    Type: Application
    Filed: July 19, 2001
    Publication date: January 23, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kam Leung Lee, Ronnen Andrew Roy
  • Publication number: 20020151145
    Abstract: A process for making abrupt, e.g. <20 nm/decade, PN junctions and haloes in, e.g., CMOSFETs having gate lengths of, e.g. <50 nm, uses a mask, e.g., sidewall spacers, during ion implantation of gate, source, and drain regions. The mask is removed after source-drain activation by annealing and source and drain extension regions are then implanted. Then the extension regions are activated. Thereafter halo regions are implanted and activated preferably using spike annealing to prevent their diffusion. The process can also be used to make diodes, bipolar transistors, etc. The activation annealing steps can be combined into a single step near the end of the process.
    Type: Application
    Filed: June 14, 2002
    Publication date: October 17, 2002
    Applicant: Reel/Frame
    Inventors: Kam Leung Lee, Ying Zhang, Maheswaran Surendra, Edmund M. Sikorski