Patents by Inventor Yun-Chi Chiang

Yun-Chi Chiang 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: 20240055496
    Abstract: A semiconductor structure includes a substrate, at least one gate electrode, a plurality of source/drain (S/D) regions, a backside contact, a first dielectric layer, and a conductive via. The at least one gate electrode is disposed in the substrate. The S/D regions is disposed in the substrate and laterally disposed aside the at least one gate electrode. The backside contact is disposed above the S/D regions and the at least one gate electrode. The first dielectric layer is disposed between the backside contact and the plurality of S/D regions and the at least one gate electrode. The conductive via is extended through the first dielectric layer to electrically connect the S/D regions and the backside contact. The conductive via includes an anisotropic transport material or a topological material.
    Type: Application
    Filed: August 14, 2022
    Publication date: February 15, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Meng-Pei Lu, Shin-Yi Yang, Yun-Chi Chiang, Han-Tang Hung, Cian-Yu Chen, Ming-Han Lee
  • Publication number: 20240055352
    Abstract: A semiconductor device includes a dielectric structure, a conductive structure disposed in the dielectric structure, a first dielectric feature disposed over the dielectric structure, a conductive element disposed in the first dielectric feature and connected to the conductive structure, and a barrier feature disposed around the conductive element and disposed outside of the conductive structure.
    Type: Application
    Filed: August 10, 2022
    Publication date: February 15, 2024
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Cian-Yu CHEN, Shin-Yi YANG, Ching-Fu YEH, Meng-Pei LU, Chin-Lung CHUNG, Yun-Chi CHIANG, Ming-Han LEE
  • Publication number: 20230352409
    Abstract: A semiconductor device includes a substrate and an interconnect layer disposed on the substrate. The interconnect layer includes a dielectric layer and an interconnect extending through the dielectric layer. The interconnect includes a bulk metal region and a single barrier/liner layer, which serves as both a barrier layer and a liner layer and which is disposed to separate the bulk metal region from the dielectric layer.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 2, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Meng-Pei LU, Shin-Yi YANG, Ching-Fu YEH, Chin-Lung CHUNG, Cian-Yu CHEN, Yun-Chi CHIANG, Tsu-Chun KUO, Ming-Han LEE
  • Publication number: 20230326857
    Abstract: A semiconductor device includes a substrate and an interconnect layer disposed over the substrate. The interconnect layer includes an interconnect structure which includes a topological material. The topological material includes a topological insulator, a topological semimetal, or a combination thereof. A method for manufacturing the semiconductor device is also disclosed.
    Type: Application
    Filed: April 8, 2022
    Publication date: October 12, 2023
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Meng-Pei LU, Shin-Yi YANG, Cian-Yu CHEN, Yun-Chi CHIANG, Ming-Han LEE
  • Patent number: 9729043
    Abstract: A power conversion apparatus and a protection method of the power conversion apparatus while a feedback current signal of the power conversion apparatus is abnormal are provided. The protection method includes a step of stopping switching a power switch if a duty cycle of a pulse width modulation signal is continuously greater than a preset duty cycle for at least one signal cycle and a voltage of a current sensing signal is smaller than a preset voltage level during the at least one signal cycle.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: August 8, 2017
    Assignee: Power Forest Technology Corporation
    Inventor: Yun-Chi Chiang
  • Publication number: 20160043628
    Abstract: A power conversion apparatus and a protection method of the power conversion apparatus while a feedback current signal of the power conversion apparatus is abnormal are provided. The protection method includes a step of stopping switching a power switch if a duty cycle of a pulse width modulation signal is continuously greater than a preset duty cycle for at least one signal cycle and a voltage of a current sensing signal is smaller than a preset voltage level during the at least one signal cycle.
    Type: Application
    Filed: November 20, 2014
    Publication date: February 11, 2016
    Inventor: Yun-Chi Chiang
  • Patent number: 9164152
    Abstract: A power detection apparatus is provided. The power detection apparatus includes a first current processing circuit and a second current processing circuit. The first current processing circuit is configured to provide a dynamic bias voltage at a bias terminal in response to a variation of a system power. The second current processing circuit is coupled to the first current processing circuit and is biased under the dynamic bias voltage for outputting a power good signal at an output terminal to represent that the system power is ready when the dynamic bias voltage is greater than a threshold voltage.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: October 20, 2015
    Assignee: Power Forest Technology Corporation
    Inventor: Yun-Chi Chiang
  • Patent number: 9148050
    Abstract: An AC/DC converting circuit and a starting method thereof are provided. An AC detection or a rectified AC voltage detection is disabled when the AC voltage or the rectified AC voltage not up to a start-up voltage is detected, so as to shorten a recovery time of a voltage of a power supply terminal of an AC/DC power conversion controller, and further shorten a starting time of the AC/DC converting circuit.
    Type: Grant
    Filed: July 14, 2013
    Date of Patent: September 29, 2015
    Assignee: Power Forest Technology Corporation
    Inventor: Yun-Chi Chiang
  • Patent number: 9077176
    Abstract: A flyback-based power conversion apparatus and a power conversion method thereof are provided. By switching first and second detection switches disposed in a control chip and coupled to a multi-function pin of the control chip at different timings, the present invention applies a collocation of a voltage-current detection auxiliary circuit and a current detection circuit at a certain timing to execute a detection of the AC input voltage received by a flyback power conversion circuit, and the present invention applies a collocation of the auxiliary voltage-current detection circuit, an over temperature protection unit and an over voltage protection unit at another timing to execute detections of an over temperature protection and an over voltage protection. As the result, a single multi-function detection pin of the control pin is corresponding to a plurality of related function detections, so as to reduce the production cost of manufacturing the control chip.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: July 7, 2015
    Assignee: Power Forest Technology Corporation
    Inventors: Po-Jen Ke, Yun-Chi Chiang, Tso-Min Chen
  • Publication number: 20140268935
    Abstract: An AC/DC converting circuit and a starting method thereof are provided. An AC detection or a rectified AC voltage detection is disabled when the AC voltage or the rectified AC voltage not up to a start-up voltage is detected, so as to shorten a recovery time of a voltage of a power supply terminal of an AC/DC power conversion controller, and further shorten a starting time of the AC/DC converting circuit.
    Type: Application
    Filed: July 14, 2013
    Publication date: September 18, 2014
    Inventor: Yun-Chi Chiang
  • Publication number: 20140016378
    Abstract: A flyback-based power conversion apparatus and a power conversion method thereof are provided. By switching first and second detection switches disposed in a control chip and coupled to a multi-function pin of the control chip at different timings, the present invention applies a collocation of a voltage-current detection auxiliary circuit and a current detection circuit at a certain timing to execute a detection of the AC input voltage received by a flyback power conversion circuit, and the present invention applies a collocation of the auxiliary voltage-current detection circuit, an over temperature protection unit and an over voltage protection unit at another timing to execute detections of an over temperature protection and an over voltage protection. As the result, a single multi-function detection pin of the control pin is corresponding to a plurality of related function detections, so as to reduce the production cost of manufacturing the control chip.
    Type: Application
    Filed: March 18, 2013
    Publication date: January 16, 2014
    Applicant: POWER FOREST TECHNOLOGY CORPORATION
    Inventors: Po-Jen Ke, Yun-Chi Chiang, Tso-Min Chen
  • Publication number: 20130285674
    Abstract: A power detection apparatus is provided. The power detection apparatus includes a first current processing circuit and a second current processing circuit. The first current processing circuit is configured to provide a dynamic bias voltage at a bias terminal in response to a variation of a system power. The second current processing circuit is coupled to the first current processing circuit and is biased under the dynamic bias voltage for outputting a power good signal at an output terminal to represent that the system power is ready when the dynamic bias voltage is greater than a threshold voltage.
    Type: Application
    Filed: July 26, 2012
    Publication date: October 31, 2013
    Applicant: POWER FOREST TECHNOLOGY CORPORATION
    Inventor: Yun-Chi Chiang
  • Patent number: 7893664
    Abstract: A power supply includes a first switch to establish a first path to charge an output of the power supply by a voltage source, a second switch to establish a second path to discharge the output, and a third switch connected between the output and a capacitor. When to discharge the output, the third switch is turned on before the second switch turns on, to transfer a portion of energy on the output to the capacitor. When to charge the output, the third switch is turned on before the first switch turns on, to transfer a portion of the energy on the capacitor to the output.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: February 22, 2011
    Assignee: Richtek Technology Corp.
    Inventor: Yun-Chi Chiang
  • Patent number: 7728628
    Abstract: The present invention discloses a level shift circuit which comprises: a basic level shift circuit for receiving inputs of first high and low operational voltage levels and generating outputs of second low and high operational voltage levels at a first node; and an output circuit for outputting a signal of one of the second operational voltage levels according to a voltage level switching at the first node.
    Type: Grant
    Filed: November 2, 2008
    Date of Patent: June 1, 2010
    Assignee: Richtek Technology Corporation, R.O.C.
    Inventor: Yun-Chi Chiang
  • Publication number: 20090243712
    Abstract: The present invention discloses a device for reducing power consumption inside an integrated circuit (IC), comprising: an IC including an up-gate transistor and a low-gate transistor electrically connected with each other, and a control circuit controlling the up-gate transistor and the low-gate transistor; and a resistor located outside the IC, the resistor having one end electrically connected with a node between the up-gate transistor and the low-gate transistor, or electrically connected with an upper end of the up-gate transistor.
    Type: Application
    Filed: February 11, 2009
    Publication date: October 1, 2009
    Inventor: Yun-Chi Chiang
  • Patent number: 7580271
    Abstract: An apparatus and method are provided for suppressing the input current inrush for a voltage converter in a pre-charge stage. The voltage converter comprises a power input for receiving an input current, a power output for supplying an output voltage for a load, and an output capacitor connected to the power output. In a pre-charge stage, a current limiting device is connected between the power input and the output capacitor to limit the input current to flow therethrough, and a variable current limiting control circuit provides a control signal to the current limiting device to determine a variable maximum value for the input current.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: August 25, 2009
    Assignee: Richtek Technology Corp.
    Inventors: Yun-Chi Chiang, Kwan-Jen Chu, Jien-Sheng Chen
  • Publication number: 20090115501
    Abstract: A power supply includes a first switch to establish a first path to charge an output of the power supply by a voltage source, a second switch to establish a second path to discharge the output, and a third switch connected between the output and a capacitor. When to discharge the output, the third switch is turned on before the second switch turns on, to transfer a portion of energy on the output to the capacitor. When to charge the output, the third switch is turned on before the first switch turns on, to transfer a portion of the energy on the capacitor to the output.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 7, 2009
    Inventor: Yun-Chi Chiang
  • Publication number: 20090115456
    Abstract: The present invention discloses a level shift circuit which comprises: a basic level shift circuit for receiving inputs of first high and low operational voltage levels and generating outputs of second low and high operational voltage levels at a first node; and an output circuit for outputting a signal of one of the second operational voltage levels according to a voltage level switching at the first node.
    Type: Application
    Filed: November 2, 2008
    Publication date: May 7, 2009
    Inventor: Yun-Chi Chiang
  • Publication number: 20080310198
    Abstract: An apparatus and method are provided for suppressing the input current inrush for a voltage converter in a pre-charge stage. The voltage converter comprises a power input for receiving an input current, a power output for supplying an output voltage for a load, and an output capacitor connected to the power output. In a pre-charge stage, a current limiting device is connected between the power input and the output capacitor to limit the input current to flow therethrough, and a variable current limiting control circuit provides a control signal to the current limiting device to determine a variable maximum value for the input current.
    Type: Application
    Filed: July 13, 2007
    Publication date: December 18, 2008
    Inventors: Yun-Chi Chiang, Kwan-Jen Chu, Jien-Sheng Chen