Patents by Inventor Tak Hung Ning

Tak Hung Ning 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: 8557693
    Abstract: A method of forming a low resistance contact structure in a semiconductor device includes forming a doped semiconductor region in a semiconductor substrate; forming a deep level impurity region at an upper portion of the doped semiconductor region; activating dopants in both the doped semiconductor region and the deep level impurity region by annealing; and forming a metal contact over the deep level impurity region so as to create a metal-semiconductor interface therebetween.
    Type: Grant
    Filed: June 3, 2010
    Date of Patent: October 15, 2013
    Assignee: International Business Machines Corporation
    Inventors: Tak Hung Ning, Zhen Zhang
  • Publication number: 20110298056
    Abstract: A method of forming a low resistance contact structure in a semiconductor device includes forming a doped semiconductor region in a semiconductor substrate; forming a deep level impurity region at an upper portion of the doped semiconductor region; activating dopants in both the doped semiconductor region and the deep level impurity region by annealing; and forming a metal contact over the deep level impurity region so as to create a metal-semiconductor interface therebetween.
    Type: Application
    Filed: June 3, 2010
    Publication date: December 8, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tak Hung Ning, Zhen Zhang
  • Publication number: 20110101440
    Abstract: A CMOS device includes a silicon substrate and an electrical insulator formed over the silicon substrate. The device also includes an access pFET formed over the electrical insulator and a first gate stack and a storage pFET formed over the electrical insulator, the storage pFET including a second source region that is co-formed with the first drain region, a second channel region, and a second drain region. The device also includes a second gate stack including a second dielectric layer formed above the second channel region and a floating gate electrode formed above the second gate dielectric layer.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 5, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jin Cai, Brian L. Ji, Tak Hung Ning
  • Patent number: 7867866
    Abstract: An SOI FET device with improved floating body is proposed. Control of the body potential is accomplished by having a body doping concentration next to the source electrode higher than the body doping concentration next to the drain electrode. The high source-side dopant concentration leads to elevated forward leakage current between the source electrode and the body, which leakage current effectively locks the body potential to the source electrode potential. Furthermore, having the source-to-body junction capacitance larger than the drain-to-body junction capacitance has additional advantages in device operation. The device has no structure fabricated for the purpose of electrically connecting the body potential to other elements of the device.
    Type: Grant
    Filed: January 4, 2010
    Date of Patent: January 11, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jin Cai, Tak Hung Ning
  • Publication number: 20100105175
    Abstract: An SOI FET device with improved floating body is proposed. Control of the body potential is accomplished by having a body doping concentration next to the source electrode higher than the body doping concentration next to the drain electrode. The high source-side dopant concentration leads to elevated forward leakage current between the source electrode and the body, which leakage current effectively locks the body potential to the source electrode potential. Furthermore, having the source-to-body junction capacitance larger than the drain-to-body junction capacitance has additional advantages in device operation. The device has no structure fabricated for the purpose of electrically connecting the body potential to other elements of the device.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Applicant: International Business Machines Corporation
    Inventors: Jin Cai, Tak Hung Ning
  • Patent number: 7655983
    Abstract: An SOI FET device with improved floating body is proposed. Control of the body potential is accomplished by having a body doping concentration next to the source electrode higher than the body doping concentration next to the drain electrode. The high source-side dopant concentration leads to elevated forward leakage current between the source electrode and the body, which leakage current effectively locks the body potential to the source electrode potential. Furthermore, having the source-to-body junction capacitance larger than the drain-to-body junction capacitance has additional advantages in device operation. The device has no structure fabricated for the purpose of electrically connecting the body potential to other elements of the device.
    Type: Grant
    Filed: June 4, 2007
    Date of Patent: February 2, 2010
    Assignee: International Business Machines Corporation
    Inventors: Jin Cai, Tak Hung Ning
  • Publication number: 20080296676
    Abstract: An SOI FET device with improved floating body is proposed. Control of the body potential is accomplished by having a body doping concentration next to the source electrode higher than the body doping concentration next to the drain electrode. The high source-side dopant concentration leads to elevated forward leakage current between the source electrode and the body, which leakage current effectively locks the body potential to the source electrode potential. Furthermore, having the source-to-body junction capacitance larger than the drain-to-body junction capacitance has additional advantages in device operation. The device has no structure fabricated for the purpose of electrically connecting the body potential to other elements of the device.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Inventors: Jin Cai, Tak Hung Ning
  • Patent number: 7244976
    Abstract: A low programming power, high speed EEPROM device is disclosed which is adapted for large scale integration. The device comprises a body, a source, a drain, and it has means for injecting a programming current into the body. The hot carriers from the body enter the floating gate with much higher efficiency than channel current carriers are capable of doing. The drain current of this device is controlled by the body bias. The device is built on an insulator, with a bottom common plate, and a top side body. These features make the device ideal for SOI and thin film technologies.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: July 17, 2007
    Assignee: International Business Machines Corporation
    Inventors: Jin Cai, Tak Hung Ning
  • Patent number: 7170112
    Abstract: A bipolar transistor structure and process technology is described incorporating a emitter, a base, and a collector, with most of the intrinsic base adjacent the collector having a graded energy bandgap and a layer of the intrinsic base adjacent the emitter having a substantially constant energy bandgap. The invention has a smaller base transit time than a conventional graded-base-bandgap bipolar transistor.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: January 30, 2007
    Assignee: International Business Machines Corporation
    Inventor: Tak Hung Ning
  • Patent number: 6949764
    Abstract: A bipolar transistor structure is described incorporating an emitter, base, and collector having a fully depleted region on an insulator of a Silicon-On-Insulator (SOI) substrate without the need for a highly doped subcollector to permit the fabrication of vertical bipolar transistors on semiconductor material having a thickness of 300 nm or less and to permit the fabrication of SOI BiCMOS. The invention overcomes the problem of requiring a thick semiconductor layer in SOI to fabricate vertical bipolar transistors with low collector resistance.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: September 27, 2005
    Assignee: International Business Machines Corporation
    Inventor: Tak Hung Ning
  • Patent number: 6870213
    Abstract: A low programming power, high speed EEPROM device is disclosed which is adapted for large scale integration. The device comprises a body, a source, a drain, and it has means for injecting a programming current into the body. The hot carriers from the body enter the floating gate with much higher efficiency than channel current carriers are capable of doing. The drain current of this device is controlled by the body bias. The device is built on an insulator, with a bottom common plate, and a top side body. These features make the device ideal for SOI and thin film technologies.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: March 22, 2005
    Assignee: International Business Machines Corporation
    Inventors: Jin Cai, Tak Hung Ning
  • Patent number: 6849871
    Abstract: A bipolar transistor structure is described incorporating an emitter, base, and collector having a fully depleted region on an insulator of a Silicon-On-Insulator (SOI) substrate without the need for a highly doped subcollector to permit the fabrication of vertical bipolar transistors on semiconductor material having a thickness of 300 nm or less and to permit the fabrication of SOI BiCMOS. The invention overcomes the problem of requiring a thick semiconductor layer in SOI to fabricate vertical bipolar transistors with low collector resistance.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: February 1, 2005
    Assignee: International Business Machines Corporation
    Inventor: Tak Hung Ning
  • Publication number: 20040195694
    Abstract: An amorphous dielectric material having a dielectric constant of 10 or greater is provided herein for use in fabricating capacitors in integrated circuit applications. The amorphous dielectric material is formed using temperatures below 450° C.; therefore the BEOL metallurgy is not adversely affected. The amorphous dielectric material of the present invention exhibits. good conformality and a low leakage current. Damascene devices containing the capacitor of the present invention are also disclosed.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 7, 2004
    Applicant: International Business Machines Corporation
    Inventors: Peter Richard Duncombe, Daniel Charles Edelstein, Robert Benjamin Laibowitz, Deborah Ann Neumayer, Tak Hung Ning, Robert Rosenberg, Thomas Mcarraoll Shaw
  • Patent number: 6777809
    Abstract: An amorphous dielectric material having a dielectric constant of 10 or greater is provided herein for use in fabricating capacitors in integrated circuit applications. The amorphous dielectric material is formed using temperatures below 450° C.; therefore the BEOL metallurgy is not adversely affected. The amorphous dielectric material of the present invention exhibits good conformality and a low leakage current. Damascene devices containing the capacitor of the present invention are also disclosed.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: August 17, 2004
    Assignee: International Business Machines Corporation
    Inventors: Peter Richard Duncombe, Daniel Charles Edelstein, Robert Benjamin Laibowitz, Deborah Ann Neumayer, Tak Hung Ning, Robert Rosenberg, Thomas Mcarraoll Shaw
  • Publication number: 20040084692
    Abstract: A bipolar transistor structure and process technology is described incorporating a emitter, a base, and a collector, with most of the intrinsic base adjacent the collector having a graded energy bandgap and a layer of the intrinsic base adjacent the emitter having a substantially constant energy bandgap. The invention has a smaller base transit time than a conventional graded-base-bandgap bipolar transistor.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Inventor: Tak Hung Ning
  • Publication number: 20030209752
    Abstract: A low programming power, high speed EEPROM device is disclosed which is adapted for large scale integration. The device comprises a body, a source, a drain, and it has means for injecting a programming current into the body. The hot carriers from the body enter the floating gate with much higher efficiency than channel current carriers are capable of doing. The drain current of this device is controlled by the body bias. The device is built on an insulator, with a bottom common plate, and a top side body. These features make the device ideal for SOI and thin film technologies.
    Type: Application
    Filed: May 10, 2002
    Publication date: November 13, 2003
    Inventors: Jin Cai, Tak Hung Ning
  • Publication number: 20030089943
    Abstract: An amorphous dielectric material having a dielectric constant of 10 or greater is provided herein for use in fabricating capacitors in integrated circuit applications. The amorphous dielectric material is formed using temperatures below 450° C.; therefore the BEOL metallurgy is not adversely affected. The amorphous dielectric material of the present invention exhibits good conformality and a low leakage current. Damascene devices containing the capacitor of the present invention are also disclosed.
    Type: Application
    Filed: December 19, 2002
    Publication date: May 15, 2003
    Applicant: International Business Machines Corporation
    Inventors: Peter Richard Duncombe, Daniel Charles Edelstein, Robert Benjamin Laibowitz, Deborah Ann Neumayer, Tak Hung Ning, Robert Rosenberg, Thomas Mcarraoll Shaw
  • Publication number: 20030085447
    Abstract: An IC including a resistor which is coupled to a metal wiring level through metal contacts, said resistor including a discrete metal-insulator-metal stack, wherein said metal contacts are in contact to one of said metals of said film stack. In the above IC design, current flows laterally through either the top metal electrode, the bottom metal electrode, or both, and any unused electrode is disconnected from the circuit.
    Type: Application
    Filed: December 16, 2002
    Publication date: May 8, 2003
    Applicant: International Business Machines Corporation
    Inventors: Peter Richard Duncombe, Daniel Charles Edelstein, Robert Benjamin Laibowitz, Deborah Ann Neumayer, Tak Hung Ning, Robert Rosenberg, Thomas McCarroll Shaw
  • Patent number: 6525427
    Abstract: An amorphous dielectric material having a dielectric constant of 10 or greater is provided herein for use in fabricating capacitors in integrated circuit applications. The amorphous dielectric material is formed using temperatures below 450° C.; therefore the BEOL metallurgy is not adversely affected. The amorphous dielectric material of the present invention exhibits good conformality and a low leakage current. Damascene devices containing the capacitor of the present invention are also disclosed.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: February 25, 2003
    Assignee: International Business Machines Corporation
    Inventors: Peter Richard Duncombe, Daniel Charles Edelstein, Robert Benjamin Laibowitz, Deborah Ann Neumayer, Tak Hung Ning, Robert Rosenberg, Thomas Mcarraoll Shaw
  • Patent number: 6437422
    Abstract: Active devices that have either a thread or a ribbon geometry. The thread geometry includes single thread active devices and multiple thread devices. Single thread devices have a central core that may contain different materials depending upon whether the active device is responsive to electrical, light, mechanical, heat, or chemical energy. Single thread active devices include FETs, electro-optical devices, stress transducers, and the like. The active devices include a semiconductor body that for the single thread devices is a layer about the core of the thread. For the multiple thread devices, the semiconductor body is either a layer on one or more of the threads or an elongated body disposed between two of the threads. For example, a FET is formed of three threads, one of which carries a gate insulator layer and a semiconductor layer and the other two of which are electrically conductive and serve as the source and drain. The substrates or threads are preferably flexible and can be formed in a fabric.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: August 20, 2002
    Assignee: International Business Machines Corporation
    Inventors: Paul M. Solomon, Jane Margaret Shaw, Cherie R. Kagan, Christos Dimitrios Dimitrakopoulos, Tak Hung Ning