Patents by Inventor Ching-Te Kent Chuang

Ching-Te Kent Chuang 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: 9412439
    Abstract: A circuit includes a hybrid switch, which includes a Tunnel Field-Effect Transistor (TFET) having a first source, a first drain, and a first gate. The hybrid switch further includes a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) connected to the TFET in parallel, with the MOSFET including a second source connected to the first source, a second drain connected to the first drain, and a second gate connected to the first gate.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: August 9, 2016
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Long Fan, Pi-Ho Hu, Yin-Nien Chen, Pin Su, Ching-Te (Kent) Chuang, Samuel C. Pan
  • Publication number: 20160211838
    Abstract: A circuit includes a hybrid switch, which includes a Tunnel Field-Effect Transistor (TFET) having a first source, a first drain, and a first gate. The hybrid switch further includes a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) connected to the TFET in parallel, with the MOSFET including a second source connected to the first source, a second drain connected to the first drain, and a second gate connected to the first gate.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 21, 2016
    Inventors: Ming-Long Fan, Pi-Ho Hu, Yin-Nien Chen, Pin Su, Ching-Te (Kent) Chuang, Samuel C. Pan
  • Patent number: 9076509
    Abstract: Methods and apparatus are provided for varying one or more of a supply voltage and reference voltage in an integrated circuit, using independent control of a diode voltage in an asymmetrical double-gate device. An integrated circuit is provided that is controlled by one or more of a supply voltage and a reference voltage. The integrated circuit comprises an independently controlled asymmetrical double-gate device to adjust one or more of the supply voltage and the reference voltage. The independent control may comprise, for example, a back gate bias. The independently controlled asymmetrical double-gate device may be employed in a number of applications, including voltage islands, static RAM, and to improve the power and performance of a processing unit.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 7, 2015
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Keunwoo Kim, Jente Benedict Kuang, Hung Cai Ngo, Kevin John Nowka
  • Patent number: 8030971
    Abstract: Techniques for employing multi-gate field effect transistors (FETS) in logic circuits formed from logic gates are provided. Double-gate transistors that conduct only when both transistor gates are active can be used to reduce the number of devices hitherto required in series or “stacked” portions of logic gates. Circuit area can be reduced and performance can be enhanced.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: October 4, 2011
    Assignee: International Business Machines Corporation
    Inventors: Meng-Hsueh Chiang, Ching-Te Kent Chuang, Keunwoo Kim
  • Publication number: 20100026346
    Abstract: Techniques for employing multi-gate field effect transistors (FETS) in logic circuits formed from logic gates are provided. Double-gate transistors that conduct only when both transistor gates are active can be used to reduce the number of devices hitherto required in series or “stacked” portions of logic gates. Circuit area can be reduced and performance can be enhanced.
    Type: Application
    Filed: April 14, 2008
    Publication date: February 4, 2010
    Applicant: International Business Machines Corporation
    Inventors: Meng-Hsueh Chiang, Ching-Te Kent Chuang, Keunwoo Kim
  • Publication number: 20090302929
    Abstract: Methods and apparatus are provided for varying one or more of a supply voltage and reference voltage in an integrated circuit, using independent control of a diode voltage in an asymmetrical double-gate device. An integrated circuit is provided that is controlled by one or more of a supply voltage and a reference voltage. The integrated circuit comprises an independently controlled asymmetrical double-gate device to adjust one or more of the supply voltage and the reference voltage. The independent control may comprise, for example, a back gate bias. The independently controlled asymmetrical double-gate device may be employed in a number of applications, including voltage islands, static RAM, and to improve the power and performance of a processing unit.
    Type: Application
    Filed: July 29, 2009
    Publication date: December 10, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ching-Te Kent Chuang, Keunwoo Kim, Jente Benedict Kuang, Hung Cai Ngo, Kevin John Nowka
  • Publication number: 20090303778
    Abstract: Methods and apparatus are provided for varying one or more of a supply voltage and reference voltage in an integrated circuit, using independent control of a diode voltage in an asymmetrical double-gate device. An integrated circuit is provided that is controlled by one or more of a supply voltage and a reference voltage. The integrated circuit comprises an independently controlled asymmetrical double-gate device to adjust one or more of the supply voltage and the reference voltage. The independent control may comprise, for example, a back gate bias. The independently controlled asymmetrical double-gate device may be employed in a number of applications, including voltage islands, static RAM, and to improve the power and performance of a processing unit.
    Type: Application
    Filed: July 29, 2009
    Publication date: December 10, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ching-Te Kent Chuang, Keunwoo Kim, Jente Benedict Kuang, Hung Cai Ngo, Kevin John Nowka
  • Patent number: 7382162
    Abstract: Techniques for employing multi-gate field effect transistors (FETS) in logic circuits formed from logic gates are provided. Double-gate transistors that conduct only when both transistor gates are active can be used to reduce the number of devices hitherto required in series or “stacked” portions of logic gates. Circuit area can be reduced and performance can be enhanced.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: June 3, 2008
    Assignee: International Business Machines Corporation
    Inventors: Meng-Hsueh Chiang, Ching-Te Kent Chuang, Keunwoo Kim
  • Patent number: 7274217
    Abstract: Discloses are CMOS circuit designs that combine MTCMOS and hybrid orientation technology to achieve the dual objectives of high performance and low standby leakage power. The invention utilizes novel combinations of a thick-oxide high-VTH PFET header with various gate- and body-biased schemes in HOT technology to significantly reduce the performance penalty associated with conventional PFET headers. A first embodiment of the invention provides a HOT-B high-VTH thick oxide bulk PFET header scheme. This header scheme can be expanded by application of a positive gate bias VPOS (VPOS>VDD) to the HOT-B PFET header during standby mode and a negative gate bias VNEG (VNEG<GND) in active mode. Another embodiment provides a HOT-A high-VTH thick oxide SOI PFET header scheme. A further embodiment provides a HOT-A body biased high-VTH thick oxide SOI PFET header scheme.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: September 25, 2007
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Koushik Kumar Das, Shih-Hsien Lo
  • Patent number: 7177177
    Abstract: An eight transistor static random access memory (SRAM)device includes first and second inverters, a first bit line, a first complement bit line, a pair of write access transistors, and a pair of read access transistors. Each of the first and second inverters includes a respective pair of transistors, and has a respective data node. Each of a first and a second of the access transistors has a source, a drain, a front gate, and a back gate. The first access transistor is coupled to the first bit line, and the second access transistor is coupled to the first complement bit line. The back gate of the first access transistor is coupled to the data node of the first inverter; and the back gate of the second access transistor is coupled to the data node of the second inverter. This increases the difference between the threshold voltages of the first and second access transistors.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: February 13, 2007
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Jae-Joon Kim, Keunwoo Kim
  • Patent number: 6608785
    Abstract: Methods and apparatus are provided to ensure functionality and timing robustness in silicon-on-insulator (SOI) complementary metal oxide semiconductor (CMOS) circuits. A select signal for the SOI CMOS circuit is received. A floating body charge monitoring circuit is coupled to the SOI CMOS circuit for monitoring excess body charges in at least one predefined SOI device and providing an output control signal. A select signal adjusting circuit is coupled to the floating body charge monitoring circuit receiving the output control signal and the select signal and providing a conditionally adjusted select signal responsive to the output control signal of the floating body charge monitor circuit. The conditionally adjusted select signal is applied to the SOI CMOS circuit.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: August 19, 2003
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Jente Benedict Kuang, Mary Joseph Saccamango
  • Publication number: 20030128606
    Abstract: Methods and apparatus are provided to ensure functionality and timing robustness in silicon-on-insulator (SOI) complementary metal oxide semiconductor (CMOS) circuits. A select signal for the SOI CMOS circuit is received. A floating body charge monitoring circuit is coupled to the SOI CMOS circuit for monitoring excess body charges in at least one predefined SOI device and providing an output control signal. A select signal adjusting circuit is coupled to the floating body charge monitoring circuit receiving the output control signal and the select signal and providing a conditionally adjusted select signal responsive to the output control signal of the floating body charge monitor circuit. The conditionally adjusted select signal is applied to the SOI CMOS circuit.
    Type: Application
    Filed: January 7, 2002
    Publication date: July 10, 2003
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Ching-Te Kent Chuang, Jente Benedict Kuang, Mary Joseph Saccamango
  • Patent number: 6448830
    Abstract: A tri-state Schmitt trigger inverting device having multiple tri-state controller switching devices between a conventional voltage mode Schmitt trigger its voltage supply rails. When an enabling signal to the tri-state controller switching devices is set to a first level, the tri-state Schmitt trigger functions as a standard logic inverter. When a complementary enabling signal is received at the tri-state controller switching devices, the connections to the high voltage rail and low voltage rail of the tri-state Schmitt trigger are turned off, and the output of the tri-state Schmitt trigger is a high impedance. Thus, the device is a single stage tri-state Schmitt inverter having optimal hysteresis characteristics with minimal power consumption.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: September 10, 2002
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Jente Benedict Kuang
  • Patent number: 6441663
    Abstract: A silicon-on-insulator (SOI) complementary metal oxide semiconductor (CMOS) Schmitt trigger circuit with controllable hysteresis and a method are provided for adapting a CMOS Schmitt trigger circuit for deep sub-micrometer partially depleted SOI (PD/SOI) applications. A SOI CMOS Schmitt trigger circuit with controllable hysteresis includes a stack of a plurality of field effect transistors (FETs) connected in series between a voltage supply and ground. An input is applied to a gate of each of the stack of the plurality of field effect transistors (FETs). The stack of the plurality of field effect transistors (FETs) provides an output at a junction of a predetermined pair of the plurality of field effect transistors (FETs). At least one feedback field effect transistor (FET) has a source coupled a junction of a predefined pair of the stack of field effect transistors (FETs) and has a gate coupled to the output.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: August 27, 2002
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Jente Benedict Kuang
  • Patent number: 6373281
    Abstract: A method and apparatus are provided for tri-state dynamic body charge modulation for sensing devices in silicon-on-insulator (SOI) complementary metal oxide semiconductor (CMOS) applications. A sense amplifier includes a silicon-on-insulator (SOI) field effect transistor. A tri-state body charge modulation circuit is coupled to a body of the silicon-on-insulator (SOI) field effect transistor. The body charge modulation circuit provides a high body bias preparatory state; a floating body state and a low body bias stand-by state enabling high performance operation, good matching characteristics, and low stand-by leakage suitable for low-power applications. The tri-state body charge modulation circuit includes a P-channel field effect transistor (PFET) and an N-channel field effect transistor (NFET) connected between a high voltage potential and ground.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: April 16, 2002
    Assignee: International Business Machines Corporation
    Inventors: Ching-Te Kent Chuang, Jente Benedict Kuang
  • Patent number: 6252429
    Abstract: An apparatus for improving device matching and switching point tolerance in a silicon-on-insulator cross-coupled circuit is disclosed. The silicon-on-insulator circuit includes first and second sets of transistors, first and second rails, and first and second discharge transistors. The first set of transistors is cross-coupled with the second set of transistors. The first rail is connected to each gate of the transistors in the first set, and the second rail is connected to each gate of the transistors in the second set. The body of at least one transistor within the first set of transistors is connected to the first discharge transistor having the same channel type as the connected transistor. The body of at least one transistor within the second set of transistors is connected to the second discharge transistor having the same channel type as the connected transistor.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: June 26, 2001
    Assignee: International Business Machines Corporation
    Inventors: Fariborz Assaderaghi, Ching-Te Kent Chuang, Jente Benedict Kuang
  • Patent number: 6222394
    Abstract: A silicon-on-insulator (SOI) complementary metal oxide semiconductor (CMOS) sense amplifier is provided with improved matching characteristics and sense point tolerance under no penalty of performance degradation. The sense amplifier includes a silicon-on-insulator (SOI) field effect transistor. A flooding field effect transistor is coupled to a body of the silicon-on-insulator (SOI) field effect transistor. The flooding field effect transistor is activated before the sense amplifier is set. The flooding field effect transistor has an opposite polarity of the silicon-on-insulator (SOI) field effect transistor. The flooding field effect transistor provides a charging path to a voltage supply rail. A pair of flooding field effect transistors serve as charging to voltage supply rail elements for silicon-on-insulator (SOI) field effect transistors on each side of complementary bitline structures of the sense amplifier.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: April 24, 2001
    Assignee: International Business Machines Corporation
    Inventors: David Howard Allen, Ching-Te Kent Chuang, Jente Benedict Kuang
  • Patent number: 5017990
    Abstract: The invention relates to a bipolar transistor structure which includes a layer of semiconductor material having a single crystal raised base, a single crystal or polycrystalline emitter and adjacent polycrystalline regions which provide an electrical connection to the emitter. The invention also relates to the method of fabricating such a structure and includes the step of depositing a conformal layer of semiconductor material of one conductivity type over a region of opposite conductivity and over insulation such that single crystal and polycrystalline regions form over single crystal material and insulation, respectively. In a subsequent step, a layer of opposite conductivity type semiconductor material is deposited on the first layer forming single crystal or polycrystalline material over single crystal and polycrystalline material over polycrystalline.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: May 21, 1991
    Assignee: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, Ching-Te Kent Chuang, Guann-Pyng Li, Tak Hung Ning